Longwave Ultraviolet Forensics Imaging Applications. Dr. Austin Richards Oculus Photonics June 25, 2012
|
|
- Dwain Watson
- 6 years ago
- Views:
Transcription
1 Longwave Ultraviolet Forensics Imaging Applications Dr. Austin Richards Oculus Photonics June 25, 2012
2 What is longwave ultraviolet radiation? UV is a waveband, a range of colors of the EM spectrum UV is invisible to human eyes it has no color that human beings can describe. Images are displayed in black and white. For the UV waveband, one describes different colors of the EM spectrum by their wavelength. We use the nanometer or nm unit to describe wavelength in the UV band. The UV band can be broken into two main categories: near-uv and shortwave UV The longwave UV band as 300nm-400nm. The shortwave UV band is nm Both the longwave UV and the shortwave UV wavebands can be used to greatly enhance the contrast in crime scene images. They can be used to quickly find evidence that is invisible both to the unaided eye and to ALS examination. The method is non-destructive and non-invasive. Evidence can be documented without physical contact or alteration. DNA evidence can then be recovered without the problems of contamination or dilution from contact methods.
3 Why? Both these bands of UV tends to be absorbed by materials much more than visible light. If you light up a crime scene with UV rays, and image the UV that is reflected off the scene with a UV camera, you will see things the eye can t see. Note the distinction this is not the same as UV fluorescence. Here UV goes in,uv comes back out and is imaged. Longwave UV imaging can greatly enhance contrast in a crime scene image. Some examples: Dusty shoeprints on a floor (without the need for dust lifters) Bloody fingerprints on a table (without the need for processing) Cleaning marks on surfaces (where blood was cleaned up) Saliva, water and other fluids staining or marking surfaces Old bitemarks and other pattern injuries on skin after they have faded Repainted body panels on cars (showing repairs made after a hit-and-run accident)
4 Oculus Photonics UVScanner This is a longwave UV viewer with LCD displays for both eyes, dual near-uv illuminators on top, and rubber eyecups to block ambient light, permitting UV imaging in bright light. A variety of lenses options are available.
5 How is the UVScanner different from RUVIS? RUVIS is primarily a short-range method, restricted to a few feet at most. This is because of the high degree to which the light sources based on gas-discharge lamps spread out. Longwave UV imaging can take advantage of very bright LED-based light sources. These forensic flashlights can put out several watts or more of 365nm UV light. This enables a much wider area to be examined quickly, and from much farther away, with greater safety. An investigator can flood an entire floor and look for trace evidence very quickly.
6 Imaging a wide area : Water splashes on a wood floor The area in the image is about 2 feet wide by 2 feet deep. The illumination is 365 nm UV light from a Clearstone Technologies light source.
7 How is the UVScanner different from RUVIS? RUVIS requires shortwave UV illumination (254 nm wavelength). This radiation is very irritating to the eyes and the skin. Full face masks and Tyvek suits must be worn in areas that are highly illuminated with shortwave UV radiation. The longwave UV sources are much safer to work around. They are 365 nm wavelength. UV safety glasses and sunscreen on exposed skin are more than enough protection for long-duration exposure.
8 How is the UVScanner different from RUVIS? The UVScanner uses a special silicon CCD video camera to produce analog video that is fed to dual near-eye LCD displays. The dual displays are much less fatiguing to use for extended periods compared to looking into a RUVIS device with one eye. While in use, the UVScanner can be connected to a standard NTSC video monitor or recording device like a mini-dv recorder for training and evidence collection via a video cable. Oculus Photonics also makes a UV imaging module that converts a Canon camcorder to near-uv operation. The package is called the UVCorder and was our first product. The camcorder can record both color HD video and UV video from the module. One can record one or the other, but not both at the same time.
9 UVCorder UV video camera Longwave UV handheld solution: Oculus Photonics UVCorder This is a longwave UV imaging system that can capture video and displays a live image. The system has a longwave UV illuminator on top. It has a wavelength of 396 nm.
10 Ultraviolet Forensics Imaging Applications
11 UV imaging applications There are two main categories of UV imaging applications in forensics: Seeing invisible surface features due to enhanced absorption Seeing invisible features due to enhanced scattering In other words, you get more absorption of UV radiation by trace evidence than with visible light. The evidence is easier to see with a longwave UV camera than with the unaided eye. Other types of trace evidence scatter UV rays much more than they scatter visible light. Again, you can see the evidence much easier.
12 UV absorption UV photons have more energy than visible (VIS) and infrared (IR) photons Many materials and substances that reflect VIS and IR will absorb UV light. The higher energy makes this happen. The shorter the wavelength of UV, the stronger the absorption This property of UV makes invisible materials visible
13 UV absorbers Organic molecules found in body fluids tend to absorb UV. You can see fingerprints and bloodstains. Metals and inorganic materials (like cement and tile) tend to reflect UV If you have an organic material on an inorganic substrate, you can often get enhanced contrast with UV compared to regular color or infrared forensic photos
14 Bloody fingerprints Visible light Courtesy of Rachel Leintz, Phoenix PD
15 Bloody fingerprints Longwave UV (365nm illumination) Courtesy of Rachel Leintz, Phoenix PD
16 Human saliva on wood floor Saliva and other liquids are easy to see against various substrates Visible light Longwave UV (365nm illumination)
17 Human saliva on wood floor Visible light Longwave UV (365nm illumination) The wood surface finish is opaque to the UV. The wood grain is thus hidden, making it much easier to see surface detail.
18 Human saliva on wood floor Visible light Longwave UV (365nm illumination) Even very tiny droplets of saliva are apparent in the UV image. These can be sampled for DNA evidence. The longwave UV illumination is much less damaging to DNA than the shortwave UV used by RUVIS, so this is a better search method.
19 White car door looks normal to the eye uniform tonality to the paint VIS Longwave UV (365nm) The longwave UV image shows that the paint has been compromised Courtesy of Heidi Nichols, Miami-Dade County Medical Examiner s Office
20 Repainted fender on Prius This fender was replaced Visible Light Fresh paint absorbs UV more strongly than older oxidized paint nm
21 Original painted fender on Prius Visible Light nm The other side shows equal absorption by the paint
22 Repainted ceiling covering blood spatter Visible light Longwave UV (365nm illumination) The whiter paint is old paint. The fresh paint absorbs UV more strongly.
23 Cleaning marks on ceiling (where blood was cleaned off) Visible light Longwave UV (365nm illumination) The cleaning products leave a slight residue that absorbs UV
24 Cleaning marks on ceiling (where blood was cleaned off) Visible light Longwave UV (365nm illumination)
25 Fresh paint near bottom of wall Fresh paint absorbs UV Visible Light nm
26 Old and Faded Bite mark Visible Light Longwave UV These photos were taken 5 months after the victim was bitten. The bite mark causes the skin to produce excess pigment on the wound site. Longwave UV imaging increases the contrast significantly relative to visible light. Courtesy of Stephen Warlen, Kansas City PD
27 Enhanced scattering of UV
28 Seeing surface texture with UV imaging Since UV tends to be absorbed at the surface of materials, one can sometimes see surface texture This works even when the surface is translucent or transparent to VIS and IR In addition, UV light waves have shorter wavelengths compared to visible light. UV light rays thus get scattered by surface scratches and imperfections much more readily than visible light rays.
29 Ultraviolet bite mark images Visible light Longwave UV Bruising makes the toothmarks very hard to see in the visible-light image The UV image on the right shows the tooth impressions much better as there is much less penetration of the UV light into the skin
30 Dusty shoeprint on wood flooring visible light image Visible light Courtesy of Rachel Leintz, Phoenix PD
31 Dusty shoeprint on wood flooring near-uv image Longwave UV (365nm illumination) Courtesy of Rachel Leintz, Phoenix PD
32 Visible light Courtesy of Rachel Leintz, Phoenix PD
33 Longwave UV (365nm illumination) Shoe is Naturalizer brand Courtesy of Rachel Leintz, Phoenix PD
34 Visible light Courtesy of Stephen Warlen, Kansas City PD
35 Courtesy of Stephen Warlen, Kansas City PD
36 Visible light Courtesy of Stephen Warlen, Kansas City PD
37 Courtesy of Stephen Warlen, Kansas City PD
38 Shoeprint on waxed vinyl floor The pressure of the shoe changes the texture of the wax and changes how it reflects UV light Visible Light 396nm UV
SER: Biological Stains Visualization with Alternate Light Sources
Sources Safety SAFETY WARNING! Do not look directly into the beam. Safety glasses with the proper viewing filters must always be worn to protect the eyes from the intense light emitted by a forensic light
More informationSection Electromagnetic Waves and the Electromagnetic Spectrum
Section 17.6 Electromagnetic Waves and the Electromagnetic Spectrum Electromagnetic Waves Can you name all the colors of the rainbow? Red, Orange, Yellow, Green, Blue, Indigo, Violet Electromagnetic Waves
More informationElectromagnetic Waves
Electromagnetic Waves What is an Electromagnetic Wave? An EM Wave is a disturbance that transfers energy through a field. A field is a area around an object where the object can apply a force on another
More informationTechnical Notes. Introduction. Optical Properties. Issue 6 July Figure 1. Specular Reflection:
Technical Notes This Technical Note introduces basic concepts in optical design for low power off-grid lighting products and suggests ways to improve optical efficiency. It is intended for manufacturers,
More informationCrime-lite. Bench top magnifier with multi-wavelength illumination for general search and fluorescence examinations
Crime-lite ML2 Bench top magnifier with multi-wavelength illumination for general search and fluorescence examinations - IR MODULE LABORATORY CART - UV MODULE NEW FEATURES - - UV-VIS-IR CAMERA Optimised
More informationCrime-lite 82 NEW. Infrared model UV-Vis-IR camera Wheeled laboratory cart. foster + freeman
NEW Infrared model UV-Vis-IR camera Wheeled laboratory cart 82 A complete range of high intensity LED light sources for crime scene investigation and forensic laboratory examination The highest output
More informationTECHNICAL INFORMATION Hungarian Red Catalog Nos. LV503, LV5031
SIRCHIE Products Vehicles Training Copyright 2011 by SIRCHIE All Rights Reserved. TECHNICAL INFORMATION Hungarian Red Catalog Nos. LV503, LV5031 INTRODUCTION Hungarian Red was developed through a cooperative
More informationLlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points
WRITE ON SCANTRON WITH NUMBER 2 PENCIL DO NOT WRITE ON THIS TEST LlIGHT REVIEW PART 2 DOWNLOAD, PRINT and submit for 100 points Multiple Choice Identify the choice that best completes the statement or
More informationTerm Info Picture. A wave that has both electric and magnetic fields. They travel through empty space (a vacuum).
Waves S8P4. Obtain, evaluate, and communicate information to support the claim that electromagnetic (light) waves behave differently than mechanical (sound) waves. A. Ask questions to develop explanations
More informationPHOTO TABLE for forensic photography
#A-6221PS PHOTO TABLE for forensic photography The photo table is developed by experts with long experience in forensic investigation and photography. The basic idea behind the development was to create
More informationCOLOUR INSPECTION, INFRARED AND UV
COLOUR INSPECTION, INFRARED AND UV TIPS, SPECIAL FEATURES, REQUIREMENTS LARS FERMUM, CHIEF INSTRUCTOR, STEMMER IMAGING THE PROPERTIES OF LIGHT Light is characterized by specifying the wavelength, amplitude
More informationMatch the correct description with the correct term. Write the letter in the space provided.
Skills Worksheet Directed Reading A Section: Interactions of Light with Matter REFLECTION Write the letter of the correct answer in the space provided. 1. What happens when light travels through a material
More informationGLS can. Gellifter imaging system. Easy to operate and results in less then a minute. Detect the weakest of traces excellent illumination
GLS can Gellifter imaging system Easy to operate and results in less then a minute Detect the weakest of traces excellent illumination Identify the finest details high resolution Easy to operate Digital
More informationLight has some interesting properties, many of which are used in medicine:
LIGHT IN MEDICINE Light has some interesting properties, many of which are used in medicine: 1- The speed of light changes when it goes from one material into another. The ratio of the speed of light in
More informationFriction ridge detail of the fingers, palms and feet is among the
Chapter 11 Latent Prints Friction ridge detail of the fingers, palms and feet is among the most definitive scientific evidence used for personal identification. The real benefit of this scientific identification
More informationELECTROMAGNETIC WAVES AND LIGHT. Physics 5 th Six Weeks
ELECTROMAGNETIC WAVES AND LIGHT Physics 5 th Six Weeks What are Electromagnetic Waves Electromagnetic Waves Sound and water waves are examples of waves resulting from energy being transferred from particle
More informationUses of Electromagnetic Waves
Uses of Electromagnetic Waves 1 of 42 Boardworks Ltd 2016 Uses of Electromagnetic Waves 2 of 42 Boardworks Ltd 2016 What are radio waves? 3 of 42 Boardworks Ltd 2016 The broadcast of every radio and television
More informationCrime-lite 2 A complete range of handheld LED light sources for crime scene investigation and forensic laboratory examination
FF(UK)03/13 2 A complete range of handheld LED light sources for crime scene investigation and forensic laboratory examination LED light sources across eight wavelengths including UV Intense uniform beam
More informationTECHNICAL ADVICE. CARE & MAINTENANCE Colour fading
TECHNICAL ADVICE CARE & MAINTENANCE What What is colour fading? Fading is defined in AS/NZS 2310:2002 Glossary of paint and painting terms as The loss of colour of one or more of the colour pigments within
More informationULTRAVIOLET and INFRARED Photography Summarized
ULTRAVIOLET and INFRARED Photography Summarized Andrew Davidhazy School of Photographic Arts and Sciences Imaging and Photographic Technology Department Rochester Institute of Technology A large part of
More informationLight waves interact with materials.
Page of 7 KEY CONCEPT Light waves interact with materials. BEFORE, you learned Mechanical waves respond to a change in medium Visible light is made up of EM waves EM waves interact with a new medium in
More informationLesson Title: The Science of Light and Photography Subject Grade Level Timeline. Physical Science minutes. Objectives
Lesson Title: The Science of Light and Photography Subject Grade Level Timeline Physical Science 5-12 60-90 minutes Objectives This lesson explores some of the ways in which light can be manipulated to
More informationLife Science Chapter 2 Study Guide
Key concepts and definitions Waves and the Electromagnetic Spectrum Wave Energy Medium Mechanical waves Amplitude Wavelength Frequency Speed Properties of Waves (pages 40-41) Trough Crest Hertz Electromagnetic
More informationfoster + freeman Advanced fingerprint capture & enhancement
foster + freeman Advanced fingerprint capture & enhancement DCS Advanced fingerprint capture & enhancement DCS U V V I S I R DCS is a comprehensive imaging system for the detection, capture and enhancement
More informationLighting Techniques 18 The Color of Light 21 SAMPLE
Advanced Evidence Photography Contents Table of Contents General Photographic Principles. 2 Camera Operation 2 Selecting a Lens 2 Focusing 3 Depth of Field 4 Controlling Exposure 6 Reciprocity 7 ISO Speed
More informationLIGHT AND LIGHTING FUNDAMENTALS. Prepared by Engr. John Paul Timola
LIGHT AND LIGHTING FUNDAMENTALS Prepared by Engr. John Paul Timola LIGHT a form of radiant energy from natural sources and artificial sources. travels in the form of an electromagnetic wave, so it has
More informationRecording The Incident. Forensic Science
Recording The Incident Forensic Science After the crime scene has been managed and the initial assessment (recording the original situation and how it was discovered) is complete, the forensic photographers
More informationInnovative optical solutions. Inspector M2 Manual
Innovative optical solutions Inspector M2 Manual DANGER Ultraviolet radiation emitted from this product. Avoid exposure. Never look directly into the lamp. Exposure can cause eye and skin allergy and allergic
More informationReflected ultraviolet digital photography with improvised UV image converter
Rochester Institute of Technology RIT Scholar Works Articles 8-25-2003 Reflected ultraviolet digital photography with improvised UV image converter Andrew Davidhazy Follow this and additional works at:
More informationEXAMINER+ Manual V.1. ARROWHEAD FORENSICS Strang Line Road Lenexa, Kansas PHONE FAX
P A R T O F T H E E L I T E S E R I E S ARROWHEAD FORENSICS 11030 Strang Line Road Lenexa, Kansas 66215 PHONE 913.894.8388 FAX 913.894.8399 www.arrowheadforensics.com EXAMINER+ Manual V.1 CONTENTS: Canon
More informationLongitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound
Type of wave Travel in Vacuum? Speed Speed vs. Medium Light Sound vs. Sound Longitudinal No, Mechanical wave ~340 m/s (in air) 1,100 feet per second More elastic/denser medium = Greater speed of sound
More informationJY Division I nformation
Feature Article JY Division I nformation Forensic Products and Technologies of the Forensic Division Nicolas Vezard The Forensic Division has been focused on Identification Instruments since its beginnings
More informationConceptual Physics 11 th Edition
Conceptual Physics 11 th Edition Chapter 27: COLOR This lecture will help you understand: Color in Our World Selective Reflection Selective Transmission Mixing Colored Light Mixing Colored Pigments Why
More information4.6.1 Waves in air, fluids and solids Transverse and longitudinal waves Properties of waves
4.6 Waves Wave behaviour is common in both natural and man-made systems. Waves carry energy from one place to another and can also carry information. Designing comfortable and safe structures such as bridges,
More informationCHAPTER-2. Application of Video Spectral Comparator for Examination of Printed Material
CHAPTER-2 Application of Video Spectral Comparator for Examination of Printed Material 2.1 Introduction Historically the document examiner mainly examined handwritten and typed documents. With the evolution
More informationUltraviolet Visible Infrared Instrumentation
Ultraviolet Visible Infrared Instrumentation Focus our attention on measurements in the UV-vis region of the EM spectrum Good instrumentation available Very widely used techniques Longstanding and proven
More informationLens: Lenses are usually made of and have 2 curved surfaces. Draw figure 5.23 on Page 191. Label it clearly and use a ruler for the light rays.
5.3 Lenses We have seen lenses in our microscopes, cameras or eyeglasses. Lens: Lenses are usually made of and have 2 curved surfaces. Concave lens: A lens curved inward Thinner at the centre than at the
More informationAnswers to Chapter 11
Answers to Chapter 11 11.1 What is Light? #1 Radiation (light) does NOT need a medium to travel through. Conduction needs a solid medium and convection needs liquid or gas medium to travel through. #2
More informationFill in the blanks. Reading Skill: Compare and Contrast - questions 3, 17
Light and Color Lesson 9 Fill in the blanks Reading Skill: Compare and Contrast - questions 3, 17 How Do You Get Color From White Light? 1 A(n) is a triangular piece of polished glass that refracts white
More informationLASERS. & Protective Glasses. Your guide to Lasers and the Glasses you need to wear for protection.
LASERS & Protective Glasses Your guide to Lasers and the Glasses you need to wear for protection. FACTS Light & Wavelengths Light is a type of what is called electromagnetic radiation. Radio waves, x-rays,
More informationFigure 1. Relative intensity of solar energy of different wavelength at the earth's surface.
Spectrum of light from the sun: Fig.1 Figure 1. Relative intensity of solar energy of different wavelength at the earth's surface. Properties of light 1-The speed of light changes when it goes from one
More informationChapter 16 Light Waves and Color
Chapter 16 Light Waves and Color Lecture PowerPoint Copyright The McGraw-Hill Companies, Inc. Permission required for reproduction or display. What causes color? What causes reflection? What causes color?
More informationSection Electromagnetic Waves and the Electromagnetic Spectrum
Section 18.6 Electromagnetic Waves and the Electromagnetic Spectrum Electromagnetic Waves Electromagnetic Waves Electromagnetic waves are transverse waves produced by the motion of electrically charged
More information) Forensic Footwear and Tire Impression Evidence. t the form of a three-dimensional shoe impression
101 An Introduction to Forensic Science j3 surfaces, 3uch as sand, soil, or snow, iney may cause a permanent deformation of that surface an object that made them An examiner will examine these characteristics
More informationLight Energy. By: Genevieve Rickey 5th Grade Mrs. Branin 2016
Light Energy By: Genevieve Rickey 5th Grade Mrs. Branin 2016 Everyone has probably turned on a light before, but have you ever thought about what light is? Light is a form of energy that is reflected from
More informationAlternate Light Source Imaging
Alternate Light Source Imaging This page intentionally left blank Alternate Light Source Imaging Forensic Photography Techniques Norman Marin Jeffrey Buszka Series Editor Larry S. Miller First published
More informationAlternate Light Sources
42 Alternate light sources provide light at different wavelengths that may or may not be visible to the naked eye. When used in combination with the proper filter, these various wavelengths of light can
More informationOptimizing throughput with Machine Vision Lighting. Whitepaper
Optimizing throughput with Machine Vision Lighting Whitepaper Optimizing throughput with Machine Vision Lighting Within machine vision systems, inappropriate or poor quality lighting can often result in
More informationPhoto-Documentation of Ultraviolet Radiation Induced Visible Fluorescence on Daguerreotypes
Photo-Documentation of Ultraviolet Radiation Induced Visible Fluorescence on Daguerreotypes Jiuan Jiuan Chen Paul Messier LLC Conservation of Photographs And Works on Paper What will be covered 1. A brief
More informationspecialities -Photocatalysts in Coatings KRONOClean - TiO 2 KRONOClean 7000 TiO 2
KRONOClean - TiO 2 -Photocatalysts in Coatings KRONOClean 7000 TiO 2 photocatalyst for UV radiation and visible light KRONOClean 7050 TiO 2 photocatalyst for UV radiation Both products are eminently suitable
More informationFOR 353: Air Photo Interpretation and Photogrammetry. Lecture 2. Electromagnetic Energy/Camera and Film characteristics
FOR 353: Air Photo Interpretation and Photogrammetry Lecture 2 Electromagnetic Energy/Camera and Film characteristics Lecture Outline Electromagnetic Radiation Theory Digital vs. Analog (i.e. film ) Systems
More informationSection 1: Sound. Sound and Light Section 1
Sound and Light Section 1 Section 1: Sound Preview Key Ideas Bellringer Properties of Sound Sound Intensity and Decibel Level Musical Instruments Hearing and the Ear The Ear Ultrasound and Sonar Sound
More informationSeminal stain fluorescence using three alternate light source-barrier filter combinations on six different colors of cotton fabrics
Boston University OpenBU Theses & Dissertations http://open.bu.edu Boston University Theses & Dissertations 2015 Seminal stain fluorescence using three alternate light source-barrier filter combinations
More informationOPERATING AND MAINTENANCE MANUAL CORONAFINDER UV VIEWER
A Division of www.syntronics.net OPERATING AND MAINTENANCE MANUAL CORONAFINDER UV VIEWER SYNTRONICS, LLC 3500 Shannon Park Drive Fredericksburg, VA 22408 USA Telephone and fax: (540) 374-1000 E-mail: nightvision@syntronics.net
More informationELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE
ELECTROMAGNETIC WAVES AND THE EM SPECTRUM MR. BANKS 8 TH GRADE SCIENCE ELECTROMAGNETIC WAVES Do not need matter to transfer energy. Made by vibrating electric charges. When an electric charge vibrates,
More informationSection 18.3 Behavior of Light
Light and Materials When light hits an object it can be Section 18.3 Behavior of Light Light and Materials Objects can be classified as Transparent Translucent Opaque Transparent, Translucent, Opaque Transparent
More informationWave Behavior and The electromagnetic Spectrum
Wave Behavior and The electromagnetic Spectrum What is Light? We call light Electromagnetic Radiation. Or EM for short It s composed of both an electrical wave and a magnetic wave. Wave or particle? Just
More informationFootwear & Tire Track Evidence
Footwear & Tire Track Evidence Impression Evidence Overview Impression evidence is the most common type of evidence recovered from scenes of crime. This type of evidence encompasses: Fingerprints Bite
More informationConceptual Physics Fundamentals
Conceptual Physics Fundamentals Chapter 13: LIGHT WAVES This lecture will help you understand: Electromagnetic Spectrum Transparent and Opaque Materials Color Why the Sky is Blue, Sunsets are Red, and
More informationNational 3 Physics Waves and Radiation. 1. Wave Properties
1. Wave Properties What is a wave? Waves are a way of transporting energy from one place to another. They do this through some form of vibration. We see waves all the time, for example, ripples on a pond
More informationLight and Applications of Optics
UNIT 4 Light and Applications of Optics Topic 4.1: What is light and how is it produced? Topic 4.6: What are lenses and what are some of their applications? Topic 4.2 : How does light interact with objects
More informationTHEIMER - lamps. The optimal type for every application. Ga - Fe doped: Multi spectrum type TH...2 Ga - Pb doped: Dual spectrum type THS...
The optimal type for every application 12 12 1 1 8 8 6 6 4 4 2 2 3 35 4 45 5 55 6 65 7 Xenon puls: For reprographic camera type KX... 3 32 34 36 38 4 42 44 46 48 5 52 54 56 58 6 Hg undoped: For UV curing
More informationObserving Microorganisms through a Microscope LIGHT MICROSCOPY: This type of microscope uses visible light to observe specimens. Compound Light Micros
PHARMACEUTICAL MICROBIOLOGY JIGAR SHAH INSTITUTE OF PHARMACY NIRMA UNIVERSITY Observing Microorganisms through a Microscope LIGHT MICROSCOPY: This type of microscope uses visible light to observe specimens.
More informationLight. Light: Rainbow colors: F. Y. I. A type of energy that travels as a wave Light Experiments.notebook. May 19, 2015
Light Light: A type of energy that travels as a wave F. Y. I. Light is different from other kinds of waves. Other kinds of waves, such as sound waves must travel through matter. Light waves do not need
More informationLight, Lasers, and Holograms Teleclass Webinar!
Welcome to the Supercharged Science Light, Lasers, and Holograms Teleclass Webinar! You can fill out this worksheet as we go along to get the most out of time together, or you can use it as a review exercise
More informationBrilliant! The Very Latest in Optical Brighteners
#Color2018 Brilliant! The Very Latest in Optical Brighteners Peter Pretzer FUJIFILM North America Corp. Graphics Systems Division The electromagnetic spectrum Lighting affects color perception. Same office
More informationWaves. Electromagnetic & Mechanical Waves
Waves Electromagnetic & Mechanical Waves Wave Definition: A disturbance that transfers energy from place to place. Molecules pass energy to neighboring molecules who pass energy to neighboring molecules
More information17-1 Electromagnetic Waves
17-1 Electromagnetic Waves transfers energy called electromagnetic radiation no medium needed transverse some electrical, some magnetic properties speed is 300,000,000 m/s; nothing is faster; at this speed
More information28 Color. The colors of the objects depend on the color of the light that illuminates them.
The colors of the objects depend on the color of the light that illuminates them. Color is in the eye of the beholder and is provoked by the frequencies of light emitted or reflected by things. We see
More informationName: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves
Name: Date: Block: Light Unit Study Guide Matching Match the correct definition to each term. 1. Waves 2. Medium 3. Mechanical waves 4. Longitudinal waves 5. Transverse waves 6. Frequency 7. Reflection
More informationP6 Quick Revision Questions
P6 Quick Revision Questions H = Higher tier only SS = Separate science only Question 1... of 50 Define wavelength Answer 1... of 50 The distance from a point on one wave to the equivalent point on the
More informationAlternate Light Sources
42 Alternate light sources provide light at different wavelengths that may or may not be visible to the naked eye. When used in combination with the proper filter, these various wavelengths of light can
More informationInstructing Clients in the Use of Low Vision Devices: Lighting, Contrast, and Glare Control
Lighting There are three rules for selecting a light: 1. The bulb s position should be adjustable. 2. The light should have a bulb generally equivalent to a 60W to 100W incandescent bulb. The client will
More informationImproving the Collection Efficiency of Raman Scattering
PERFORMANCE Unparalleled signal-to-noise ratio with diffraction-limited spectral and imaging resolution Deep-cooled CCD with excelon sensor technology Aberration-free optical design for uniform high resolution
More informationLight, Color, Spectra 05/30/2006. Lecture 17 1
What do we see? Light Our eyes can t t detect intrinsic light from objects (mostly infrared), unless they get red hot The light we see is from the sun or from artificial light When we see objects, we see
More informationCPSC 4040/6040 Computer Graphics Images. Joshua Levine
CPSC 4040/6040 Computer Graphics Images Joshua Levine levinej@clemson.edu Lecture 04 Displays and Optics Sept. 1, 2015 Slide Credits: Kenny A. Hunt Don House Torsten Möller Hanspeter Pfister Agenda Open
More informationLIGHT SPECTRA FOR CRIME SCENES AND LABS
LIGHT SPECTRA FOR CRIME SCENES AND LABS FORENSICS www.lumatec.de INTRO Investigators need powerful multispectral light sources to solve crimes. We put these tools into their hands. Engineered for portability
More informationLight, Lasers, and Holograms Teleclass Webinar!
Welcome to the Supercharged Science Light, Lasers, and Holograms Teleclass Webinar! You can fill out this worksheet as we go along to get the most out of time together, or you can use it as a review exercise
More informationForensic Science Lab Activity
Forensic Science Lab Activity What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter? Type and velocity of weapon Number
More informationExercises The Color Spectrum (pages ) 28.2 Color by Reflection (pages )
Exercises 28.1 The Spectrum (pages 555 556) 1. was the first person to do a systematic study of color. 2. Circle the letter of each statement that is true about Newton s study of color. a. He studied sunlight.
More informationWAVES & EM SPECTRUM. Chapters 10 & 15
WAVES & EM SPECTRUM Chapters 10 & 15 What s a wave? repeating disturbance transfers energy through matter or space Oscillation back & forth movement carries energy w/o transporting matter can travel through
More informationUV Beads Summary: In this activity we will: Materials:
UV Beads Summary: This activity explores the temperature behavior of UV sensitive beads and investigates the effectiveness of sunscreens. UV Beads are a type of sensor that detects ultraviolet light given
More informationTest 1: Example #2. Paul Avery PHY 3400 Feb. 15, Note: * indicates the correct answer.
Test 1: Example #2 Paul Avery PHY 3400 Feb. 15, 1999 Note: * indicates the correct answer. 1. A red shirt illuminated with yellow light will appear (a) orange (b) green (c) blue (d) yellow * (e) red 2.
More information3M Contrast Enhancement Film. The. Clear. Advantage. High purity, optical-grade adhesive films for joining transparent materials
3M Contrast Enhancement Film The Clear Advantage High purity, optical-grade adhesive films for joining transparent materials 3 3M Contrast Enhancement Film Engineered to speed assembly, improve display
More informationLight Transmission and Reflectance
T E C H N I C A L D A T A CYRO Industries 279 Interpace Parkway Parsippany, NJ 07054 www.cyro.com Light Transmission and Reflectance Light and Radiation Light or electromagnetic radiation can be divided
More informationCINEMA FILTERS. nisifilters.com.au nisifilters.co.nz
Since our beginning over ten years ago, NiSi has devoted itself to the research and development of filters. Today, NiSi is at the forefront of optical technology. They combine the highest quality glass
More informationHarmful-light protection Series
Harmful-light protection Series Anti blue ray Anti-fog Anti-UV Far IR Negative ion 5 Glasses Innovative Technologies TR polymer material for the frame, environmentally friendly, flexible and not broken.
More informationCHAPTER VII ELECTRIC LIGHTING
CHAPTER VII ELECTRIC LIGHTING 7.1 INTRODUCTION Light is a form of wave energy, with wavelengths to which the human eye is sensitive. The radiant-energy spectrum is shown in Figure 7.1. Light travels through
More information4.6 Waves Waves in air, fluids and solids Transverse and longitudinal waves
4.6 Waves Wave behaviour is common in both natural and man-made systems. Waves carry energy from one place to another and can also carry information. Designing comfortable and safe structures such as bridges,
More informationForensic Science Lab Activity
Forensic Science Lab Activity What does the abbreviation BPA represent? Bloodstain Pattern Analysis What can an investigator learn from the analysis of a blood spatter? Type and velocity of weapon Number
More informationPAPER No. 7: CRIMINALISTICS AND FORENSIC PHYSICS MODULE No. 11; TRACE EVIDENCE
SUBJECT FORENSIC SCIENCE Paper No and Title Module No. and Title Paper 7 : Criminalistics and Forensic Physics Module No. 11; Trace evidence Module Tag FSC_P7_M11 TABLE OF CONTENTS 1. Learning Outcomes
More informationInfrared Endoscopy and its Practicality for Surgery. Phys 173 June 2014 Kevin Kohler A
Infrared Endoscopy and its Practicality for Surgery Phys 173 June 2014 Kevin Kohler A09320836 Abstract The focus of this experiment was to see if there was a wavelength of light that would allow for surgeons
More informationRaytec White-Paper Lighting Theory
Raytec White-Paper Lighting Theory Light is fundamental to CCTV. Without light no images are possible as it is light that makes the world visible both to the human eye and to the CCTV camera. What is Light?
More informationFluorescing mud prints
Fluorescing mud prints Tale or reality The visualization and securing of shoeprints made with wet or muddy outsoles, presented at the poster session of the 82nd Educational Conference of the IAI, Danvers/Massachusetts,
More informationTECHNICAL INFORMATION Tactical MAX Forensic Light Kit Catalog No. TMX100
Copyright 2016 by SIRCHIE All Rights Reserved. TECHNICAL INFORMATION Tactical MAX Forensic Light Kit Catalog No. TMX100 INTRODUCTION Using only conventional lighting in the forensic examination of a crime
More informationKeywords: Alternate light source; biological fluids; visualisation; 360-degree photography; high dynamic range; fluorescence
Article to be printed in colour. Abstract One of the most important and commonly encountered evidence types that can be recovered at crime scenes are biological fluids. Due to the ephemeral nature of biological
More information1 Detection of Latent Fingerprints. 2 The Latentmaster System. 3 The Latentmaster Software. 4 Latentmaster Components
Latent Master 2005 Contents 1 Detection of Latent Fingerprints 2 The Latentmaster System 3 The Latentmaster Software 4 Latentmaster Components - Latentmaster GOLD IR-VIS-UV - Camera - Latentmaster QUARTZ
More informationTest Review # 8. Physics R: Form TR8.17A. Primary colors of light
Physics R: Form TR8.17A TEST 8 REVIEW Name Date Period Test Review # 8 Light and Color. Color comes from light, an electromagnetic wave that travels in straight lines in all directions from a light source
More information(a) Imaging Veins Superficial veins that are less than 3 mm deep can sometimes be seen as blue-green (often raised) areas of the skin.
Introduction (a) Imaging Veins Superficial veins that are less than 3 mm deep can sometimes be seen as blue-green (often raised) areas of the skin. Visualization of these veins is determined by the type
More informationPeriod 3 Solutions: Electromagnetic Waves Radiant Energy II
Period 3 Solutions: Electromagnetic Waves Radiant Energy II 3.1 Applications of the Quantum Model of Radiant Energy 1) Photon Absorption and Emission 12/29/04 The diagrams below illustrate an atomic nucleus
More information