Radiometry I: Illumination. cs348b Matt Pharr
|
|
|
- Allison Lambert
- 5 years ago
- Views:
Transcription
1 Radiometry I: Illumination cs348b Matt Pharr
2 Administrivia Extra copies of lrt book Bug fix for assignment 1 polynomial.h file
3 Onward To The Physical Description of Light Four key quantities Power Radiant intensity Irradiance Radiance Radiometry and photometry
4 Radiometry The measurement of electromagnetic radiation Radiation: propagation of energy through space We will ignore polarization, quantum mechanics Frequency distribution of radiation gives color
5 Spectral Distribution of Energy Radiometric quantities are usually wavelength-dependent (Usually not included in equations, for simplicity) Q λ = dq/dλ
6 Blackbody Radiator Most energy outside of the visible range
7 Sunlight
8 Fluorescent Light Spikes make accurate representation difficult
9 Lemon Skin
10 Spectral Representations Arbitrarily complex spectral distributions represented with basis functions Classic efficiency vs accuracy trade-off Polynomials, Gaussians, delta functions, step functions,... RGB is a poor / ill-defined choice!
11 Radiant Energy and Power Energy (Q) Joules Time usually not important in graphics (Film exposure, sunburn) Power ( Φ) Watts Energy per unit time Φ = dq/dt Spectrum gives wavelength distribution of power Φ λ = dφ/dλ
12 Light Sources Spectral emission distribution Angular emission distribution Spatial emission distribution
13 Intensity I = dφ/dω Watts/steradian Φ = I(ω)dω Ω Isotropic point source: Φ = 4πI
14 Measuring Angles Plane angle (radians) Length of arc subtended by object divided by radius θ = s/r Solid angle (steredians) Area of sphere subtended by object divided by radius squared Examples...
15 Differential Solid Angles dω = sin θdθdφ f(ω)dω = Ω 2π π 0 0 f(θ, φ) sin θdθdφ
16 Goniometric Diagrams
17 Irradiance How much light is arriving at a point on a surface? Power per unit area E = dφ/da Φ = A E(x)dA
18 Lambert s Cosine Law Incident irradiance varies according to the cosine of the incident angle E = E 0 cos θ
19 Inverse Square Falloff Law Irradiance decreases with square of the distance from a point source Look at projected solid angles...
20 Radiance Area and solid angle density of flux Think area lights, not point lights: intensity per unit area, or irradiance per unit angle Unlike irradiance, flux, includes directional distribution L = dφ dωda cos θ
21 Key Properties of Radiance Invariant along rays Carry radiance along rays in ray-tracer Response of sensor is proportional to incident radiance Image is a 2D set of rays Fundamental quantity that characterizes light in environment Other quantities can be derived from it
22 Exercises Total flux from Lambertian disk source? Total flux from cone spotlight Total flux from disk with cone angular distribution Irradiance from disk directly above surface
23 Photometry Quantities in terms of effect on standard human observer (photopic conditions) Luminous efficiency curve X p = 683 λ V (λ)x r (λ)dλ
24 Photometry vs Radiometry Radiometry: physical measurement of electromagnetic energy Photometry: perceptually-based measurement But we don t want to waste our time on radiation outside the visible range So judiciously apply photometric computations to help prioritize...
25 Photometric vs. Radiometric Quantities Luminous flux / radiant flux Luminous intensity / radiant intensity Illuminance / irradiance Luminance / radiance
Lighting Terminologies Introduction
Lighting Terminologies Introduction A basic understanding of lighting fundamentals is essential for specifiers and decision makers who make decisions about lighting design, installation and upgrades. Radiometry
Photometry for Traffic Engineers...
Photometry for Traffic Engineers... Workshop presented at the annual meeting of the Transportation Research Board in January 2000 by Frank Schieber Heimstra Human Factors Laboratories University of South
Radiometric and Photometric Measurements with TAOS PhotoSensors
INTELLIGENT OPTO SENSOR DESIGNER S NUMBER 21 NOTEBOOK Radiometric and Photometric Measurements with TAOS PhotoSensors contributed by Todd Bishop March 12, 2007 ABSTRACT Light Sensing applications use two
Radiometry vs. Photometry. Radiometric and photometric units
Radiometry vs. Photometry Radiometry -- the measurement and specification of the power (energy) of a source of electromagnetic radiation.! total energy or numbers of quanta Photometry -- the measurement
Radiometry vs. Photometry. Radiometric and photometric units
Radiometry vs. Photometry Radiometry -- the measurement and specification of the power (energy) of a source of electromagnetic radiation. total energy or numbers of quanta Photometry -- the measurement
Light-Emitting Diodes
445.664 Light-Emitting Diodes Chapter 16. Human eye sensitivity and photometric quantities Euijoon Yoon Human vision Ganglion cell (circadian receptor) Cones: provide color sensitivity Rods : color insensitive
Photometry for Traffic Engineers...
Photometry for Traffic Engineers... Workshop presented at the annual meeting of the Transportation Research Board in January 2000 by Frank Schieber Heimstra Human Factors Laboratories University of South
Electrical Illumination and Design
EE512 Electrical Illumination and Design Prepared by: Engr. John Michael Abrera Table of Contents 1. Photometry 2. Laws of Illumination 3. Coefficient of Utilization 1 Photometry Photometry Photometry
Physics of Light. Light: electromagnetic radiation that can produce a visual sensation.
Lighting systems Physics of Light Light: electromagnetic radiation that can produce a visual sensation. Speed of propagation (c) λ Wave frequency (ƒ) (300 000 km/s) ١ hv λ Less than 1% of the Electromagnetic
daylight Spring 2014 College of Architecture, Texas Tech University 1
daylight Spring 2014 College of Architecture, Texas Tech University 1 artificial light Spring 2014 College of Architecture, Texas Tech University 2 artificial light Spring 2014 College of Architecture,
NFMS THEORY LIGHT AND COLOR MEASUREMENTS AND THE CCD-BASED GONIOPHOTOMETER. Presented by: January, 2015 S E E T H E D I F F E R E N C E
NFMS THEORY LIGHT AND COLOR MEASUREMENTS AND THE CCD-BASED GONIOPHOTOMETER Presented by: January, 2015 1 NFMS THEORY AND OVERVIEW Contents Light and Color Theory Light, Spectral Power Distributions, and
Radiometry and photometry FAQ
Radiometry and photometry FAQ by James M. Palmer Research Professor Optical Sciences Center University of Arizona Tucson, AZ; 85721 When I use a word, it means just what I choose it to mean - neither more
08-2 EE 4770 Lecture Transparency. Formatted 16:41, 12 February 1998 from lsli Steradian. Example
08-1 08-1 Light Definition: wave or particle of electromagnetic energy. Consider photon character of electromagnetic energy. Photon energy, E = ch λ, where c =.9979458 10 9 m s, h =6.660755 10 34 Js, and
07-Lighting Concepts. EE570 Energy Utilization & Conservation Professor Henry Louie
07-Lighting Concepts EE570 Energy Utilization & Conservation Professor Henry Louie 1 Overview Light Luminosity Function Lumens Candela Illuminance Luminance Design Motivation Lighting comprises approximately
ANTENNAS AND WAVE PROPAGATION EC602
ANTENNAS AND WAVE PROPAGATION EC602 B.Tech Electronics & Communication Engineering, Semester VI INSTITUTE OF TECHNOLOGY NIRMA UNIVERSITY 1 Lesson Planning (L-3,P-2,C-4) Chapter No. Name Hours 1. Basic
UNIT Explain the radiation from two-wire. Ans: Radiation from Two wire
UNIT 1 1. Explain the radiation from two-wire. Radiation from Two wire Figure1.1.1 shows a voltage source connected two-wire transmission line which is further connected to an antenna. An electric field
Intorduction to light sources, pinhole cameras, and lenses
Intorduction to light sources, pinhole cameras, and lenses Erik G. Learned-Miller Department of Computer Science University of Massachusetts, Amherst Amherst, MA 01003 October 26, 2011 Abstract 1 1 Analyzing
12/02/2017. From light to colour spaces. Electromagnetic spectrum. Colour. Correlated colour temperature. Black body radiation.
From light to colour spaces Light and colour Advanced Graphics Rafal Mantiuk Computer Laboratory, University of Cambridge 1 2 Electromagnetic spectrum Visible light Electromagnetic waves of wavelength
Measuring the Light Output (Power) of UVC LEDs. Biofouling Control Using UVC LEDs
Biofouling Control Using UVC LEDs NOVEMBER 1, 2016 Measuring the Light Output (Power) of UVC LEDs This application note outlines an approach for customers to measure UVC LED power output with a pulse mode
TSBB09 Image Sensors 2018-HT2. Image Formation Part 1
TSBB09 Image Sensors 2018-HT2 Image Formation Part 1 Basic physics Electromagnetic radiation consists of electromagnetic waves With energy That propagate through space The waves consist of transversal
10 Antenna gain, beam pattern, directivity
10 Antenna gain, beam pattern, directivity Adipoleantenna(oracloselyrelatedmonopoletobestudiedinLecture 18) is a near perfect radiator for purposes of broadcasting that is, sending waves of equal amplitudes
Photometry and Light Measurement
Photometry and Light Measurement Adrian Waltho, Analytik Ltd adrian.waltho@analytik.co.uk What is Light? What is Light? What is Light? Ultraviolet Light UV-C 180-280 nm UV-B 280-315 nm UV-A 315-400 nm
GEOMETRICAL OPTICS AND OPTICAL DESIGN
GEOMETRICAL OPTICS AND OPTICAL DESIGN Pantazis Mouroulis Associate Professor Center for Imaging Science Rochester Institute of Technology John Macdonald Senior Lecturer Physics Department University of
Fig Color spectrum seen by passing white light through a prism.
1. Explain about color fundamentals. Color of an object is determined by the nature of the light reflected from it. When a beam of sunlight passes through a glass prism, the emerging beam of light is not
Fundamentals of Radiometry & Photometry
15/03/2018 Fundamentals of Radiometry & Photometry Optical Engineering Prof. Elias N. Glytsis School of Electrical & Computer Engineering National Technical University of Athens Radiometric and Photometric
ELEC Dr Reji Mathew Electrical Engineering UNSW
ELEC 4622 Dr Reji Mathew Electrical Engineering UNSW Filter Design Circularly symmetric 2-D low-pass filter Pass-band radial frequency: ω p Stop-band radial frequency: ω s 1 δ p Pass-band tolerances: δ
GLOSSARY OF TERMS. Terminology Used for Ultraviolet (UV) Curing Process Design and Measurement
GLOSSARY OF TERMS Terminology Used for Ultraviolet (UV) Curing Process Design and Measurement This glossary of terms has been assembled in order to provide users, formulators, suppliers and researchers
The Art of Light Measurement. Avantes BV Apeldoorn, The Netherlands
The Art of Light Measurement Avantes BV Apeldoorn, The Netherlands Who am I? Ger Loop Product Manager Avantes BV Oude Apeldoornseweg 28 7333 NS APELDOORN The Netherlands Phone: (+31) 313 670170 Fax: (+31)
Real-Time Scanning Goniometric Radiometer for Rapid Characterization of Laser Diodes and VCSELs
Real-Time Scanning Goniometric Radiometer for Rapid Characterization of Laser Diodes and VCSELs Jeffrey L. Guttman, John M. Fleischer, and Allen M. Cary Photon, Inc. 6860 Santa Teresa Blvd., San Jose,
ROCHESTER INSTITUTE OF TECHNOLOGY COURSE OUTLINE FORM COLLEGE OF SCIENCE. Chester F. Carlson Center for Imaging Science
ROCHESTER INSTITUTE OF TECHNOLOGY COURSE OUTLINE FORM COLLEGE OF SCIENCE Chester F. Carlson Center for Imaging Science REVISED COURSE: COS-IMGS-619- Radiometry 1.0 Course Approvals Required course approvals:
Geometrical optics Design of imaging systems
Geometrical optics Design of imaging systems Geometrical optics is either very simple, or else it is very complicated Richard P. Feynman What s it good for? 1. Where is the image?. How large is it? 3.
Lecture Notes 10 Image Sensor Optics. Imaging optics. Pixel optics. Microlens
Lecture Notes 10 Image Sensor Optics Imaging optics Space-invariant model Space-varying model Pixel optics Transmission Vignetting Microlens EE 392B: Image Sensor Optics 10-1 Image Sensor Optics Microlens
NIST MEASUREMENT SERVICES:
NIST Special Publication 250-37 NIST MEASUREMENT SERVICES: PHOTOMETRIC CALIBRATIONS Yoshihiro Ohno Optical Technology Division Physics Laboratory National Institute of Standards and Technology Gaithersburg,
Warren J. Smith Chief Scientist, Consultant Rockwell Collins Optronics Carlsbad, California
Modern Optical Engineering The Design of Optical Systems Warren J. Smith Chief Scientist, Consultant Rockwell Collins Optronics Carlsbad, California Fourth Edition Me Graw Hill New York Chicago San Francisco
Why learn about photography in this course?
Why learn about photography in this course? Geri's Game: Note the background is blurred. - photography: model of image formation - Many computer graphics methods use existing photographs e.g. texture &
Method for Quantifying the Spectral Based Error in Luminance Measurements
University of Colorado, Boulder CU Scholar Civil Engineering Graduate Theses & Dissertations Civil, Environmental, and Architectural Engineering Spring 1-1-2017 Method for Quantifying the Spectral Based
TECHNICAL REPORT. Safety of laser products. Sécurité des appareils à laser
TECHNICAL EPOT IEC T 60825-9 First edition 1999-10 Safety of laser products Part 9: Compilation of maximum permissible exposure to incoherent optical radiation Sécurité des appareils à laser Partie 9:
lecture 24 image capture - photography: model of image formation - image blur - camera settings (f-number, shutter speed) - exposure - camera response
lecture 24 image capture - photography: model of image formation - image blur - camera settings (f-number, shutter speed) - exposure - camera response - application: high dynamic range imaging Why learn
Development of 2 Total Spectral Radiant Flux Standards at NIST
CIE/USA Annual Conference, October 7, 2014, Seattle, WA Development of 2 Total Spectral Radiant Flux Standards at NIST Yuqin Zong National Institute of Standards and Technology Gaithersburg, Maryland Outline
ANSI/IES TM-33. A New Standard for Luminaire Optical Data
ANSI/IES TM-33 A New Standard for Luminaire Optical Data Panelist Ian Ashdown SunTracker Technologies 2 Photometric Data Files Luminous intensity Luminous flux Input watts Luminous opening Popular Formats
Work environment. Retina anatomy. A human eyeball is like a simple camera! The way of vision signal. Directional sensitivity. Lighting.
Eye anatomy Work environment Lighting 1 2 A human eyeball is like a simple camera! Sclera: outer walls, hard like a light-tight box. Cornea and crystalline lens (eyelens): the two lens system. Retina:
Topic 3. Fundamental Parameters of Antennas. Tamer Abuelfadl
Topic 3 Fundamental Parameters of Antennas Tamer Abuelfadl Electronics and Electrical Communications Department Faculty of Engineering Cairo University Tamer Abuelfadl (EEC, Cairo University) Topic 3 ELC
Symbols and Terminology
A Anode, anode terminal A Ampere SI unit of electrical current A Radiant sensitive area That area which is radiant sensitive for a specified range a Distance e.g. between the emitter (source) and the detector
Light. Measurement. What is Photometrics? Presentation Outline. What is Photometrics? What will you get out of today s workshop?
All tet, figures, animations, schematics, drawings, and intellectual property contained in this document are Copyright 2001 by. This copyright applies to the paper and electronic versions of this document.
The human visual system
The human visual system Vision and hearing are the two most important means by which humans perceive the outside world. 1 Low-level vision Light is the electromagnetic radiation that stimulates our visual
PHY 431 Homework Set #5 Due Nov. 20 at the start of class
PHY 431 Homework Set #5 Due Nov. 0 at the start of class 1) Newton s rings (10%) The radius of curvature of the convex surface of a plano-convex lens is 30 cm. The lens is placed with its convex side down
2.5.3 Antenna Temperature
ECEn 665: Antennas and Propagation for Wireless Communications 36.5.3 Antenna Temperature We now turn to thermal noise received by an antenna. An antenna in a warm environment receives not only a signal
Colorimetry and Color Modeling
Color Matching Experiments 1 Colorimetry and Color Modeling Colorimetry is the science of measuring color. Color modeling, for the purposes of this Field Guide, is defined as the mathematical constructs
HTTP://www.intl-light.com/handbook/ To receive International Light's latest Light Measurement Instruments Catalog, contact: International Light 17 Graf Road Newburyport, MA 01950 Tel: (978) 465-5923 Fax:
SPECTRORADIOMETRY METHODS: A GUIDE TO PHOTOMETRY AND VISIBLE SPECTRORADIOMETRY
SPECTRORADIOMETRY METHODS: A GUIDE TO PHOTOMETRY AND VISIBLE SPECTRORADIOMETRY Written By William E. Schneider, Richard Young, Ph.D 1. SPECTRORADIOMETRY METHODS 1.1. Spectroradiometrics vs Photometric
Make Machine Vision Lighting Work for You
Make Machine Vision Lighting Work for You Lighting is our passion Flexibility is our model Daryl Martin Technical Sales and Product Specialist Advanced illumination 734-213-1312 dmartin@advill.com Who
Test procedures Page: 1 of 5
Test procedures Page: 1 of 5 1 Scope This part of document establishes uniform requirements for measuring the numerical aperture of optical fibre, thereby assisting in the inspection of fibres and cables
Current and Future Realizations NRC Photometric and Spectroradiometric Calibration Chains
Measurement Science and Standards (MSS) Current and Future Realizations NRC Photometric and Spectroradiometric Calibration Chains Arnold A. Gaertner Photometry, Radiometry and Thermometry (PRT) CORM 30
Camera Simulation. References. Photography, B. London and J. Upton Optics in Photography, R. Kingslake The Camera, The Negative, The Print, A.
Camera Simulation Effect Cause Field of view Film size, focal length Depth of field Aperture, focal length Exposure Film speed, aperture, shutter Motion blur Shutter References Photography, B. London and
Chapter 2. Fundamental Properties of Antennas. ECE 5318/6352 Antenna Engineering Dr. Stuart Long
Chapter Fundamental Properties of Antennas ECE 5318/635 Antenna Engineering Dr. Stuart Long 1 IEEE Standards Definition of Terms for Antennas IEEE Standard 145-1983 IEEE Transactions on Antennas and Propagation
Fundamentals of Radio Interferometry
Fundamentals of Radio Interferometry Rick Perley, NRAO/Socorro Fourteenth NRAO Synthesis Imaging Summer School Socorro, NM Topics Why Interferometry? The Single Dish as an interferometer The Basic Interferometer
Light as a stimulus for vision. Electromagnetic spectrum. Radiant Energy (Electromagnetic) Spectrum. Solar Radiation Spectrum
Light as a stimulus for vision The physics of light: Light is considered both as a propagating electromagnetic wave and as a stream of individual particles (photons). In Vision Science, both of these aspects
Antenna & Propagation. Antenna Parameters
For updated version, please click on http://ocw.ump.edu.my Antenna & Propagation Antenna Parameters by Nor Hadzfizah Binti Mohd Radi Faculty of Electric & Electronics Engineering hadzfizah@ump.edu.my Chapter
Work environment. Vision. Human Millieu system. Retina anatomy. A human eyeball is like a simple camera! Lighting. Eye anatomy. Cones colours
Human Millieu system Work environment Lighting Human Physical features Anatomy Body measures Physiology Durability Psychological features memory perception attention Millieu Material environment microclimate
Application Note 26. Optical Hazard Measurements with JETI specbos 1211UV
Optical Hazard Measurements with JETI specbos 1211UV Contents 1 Introduction 3 2 Regulations 3 3 Categories of Optical Hazard 3 4 Available Accessories for JETI specbos 1211UV 5 5 Schemes and Peculiarities
Sources classification
Sources classification Radiometry relates to the measurement of the energy radiated by one or more sources in any region of the electromagnetic spectrum. As an antenna, a source, whose largest dimension
Wide Field-of-View Fluorescence Imaging of Coral Reefs
Wide Field-of-View Fluorescence Imaging of Coral Reefs Tali Treibitz, Benjamin P. Neal, David I. Kline, Oscar Beijbom, Paul L. D. Roberts, B. Greg Mitchell & David Kriegman Supplementary Note 1: Image
Dependence of radio wave anomalous attenuation in the ionosphere on properties of spatial spectrum of irregularities
Dependence of radio wave anomalous attenuation in the ionosphere on properties of spatial spectrum of irregularities N.A. Zabotin, G.A. Zhbankov and E.S. Kovalenko ostov State University, ostov-on-don,
THE CANDELA - UNIT OF LUMINOUS INTENSITY
THE CANDELA - UNIT OF LUMINOUS INTENSITY Light is that part of the spectrum of electromagnetic radiation that the human eye can see. It lies between about 400 and 700 nanometers. All the units for measuring
Lumen lm 1 lm= 1cd 1sr The luminous flux emitted into unit solid angle (1 sr) by an isotropic point source having a luminous intensity of 1 candela
WORD BANK Light Measurement Units UNIT Abbreviation Equation Definition Candela cd 1 cd= 1(lm/sr) The SI unit of luminous intensity. One candela is the luminous intensity, in a given direction, of a source
Application Note (A19)
Application Note (A19) Reducing Uncertainty in Precision High-Brightness LED Measurements Revision: A December 2005 Gooch & Housego 4632 36 th Street, Orlando, FL 32811 Tel: 1 407 422 3171 Fax: 1 407 648
Integrating Spheres. Why an Integrating Sphere? High Reflectance. How Do Integrating Spheres Work? High Damage Threshold
1354 MINIS Oriel Integrating Spheres Integrating spheres are ideal optical diffusers; they are used for radiometric measurements where uniform illumination or angular collection is essential, for reflectance
Technical Notes. Integrating Sphere Measurement Part II: Calibration. Introduction. Calibration
Technical Notes Integrating Sphere Measurement Part II: Calibration This Technical Note is Part II in a three part series examining the proper maintenance and use of integrating sphere light measurement
Light, 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
Color Image Processing
Color Image Processing Jesus J. Caban Outline Discuss Assignment #1 Project Proposal Color Perception & Analysis 1 Discuss Assignment #1 Project Proposal Due next Monday, Oct 4th Project proposal Submit
1 W. Philpot, Cornell University The Digital Image
1 The Digital Image DEFINITION: A grayscale image is a single-valued function of 2 variables: ff(xx 1, xx 2 ). Notes: A gray scale image is a single-valued function of two spatial variables, ff(xx 11,
Breaking Down The Cosine Fourth Power Law
Breaking Down The Cosine Fourth Power Law By Ronian Siew, inopticalsolutions.com Why are the corners of the field of view in the image captured by a camera lens usually darker than the center? For one
Lecture Notes 11 Introduction to Color Imaging
Lecture Notes 11 Introduction to Color Imaging Color filter options Color processing Color interpolation (demozaicing) White balancing Color correction EE 392B: Color Imaging 11-1 Preliminaries Up till
CBT-90-UV LEDs. CBT-90-UV CBT-120 Product Datasheet Preliminary. Features: Table of Contents. Applications
CBT-9-UV CBT-2 Product Datasheet Preliminary CBT-9-UV LEDs Features: Table of Contents Technology Overview.... 2 CBT-9 Bin Structure... 3 Greater than 2 W of optical power from 4 nm to 4 nm. High thermal
( ) 2 ( ) 3 ( ) + 1. cos! t " R / v p 1 ) H =! ˆ" I #l ' $ 2 ' 2 (18.20) * + ! ˆ& "I #l ' $ 2 ' , ( βr << 1. "l ' E! ˆR I 0"l ' cos& + ˆ& 0
Summary Chapter 8. This last chapter treats the problem of antennas and radiation from antennas. We start with the elemental electric dipole and introduce the idea of retardation of potentials and fields
Overview. Image formation - 1
Overview perspective imaging Image formation Refraction of light Thin-lens equation Optical power and accommodation Image irradiance and scene radiance Digital images Introduction to MATLAB Image formation
OPAC 202 Optical Design and Instrumentation. Topic 3 Review Of Geometrical and Wave Optics. Department of
OPAC 202 Optical Design and Instrumentation Topic 3 Review Of Geometrical and Wave Optics Department of http://www.gantep.edu.tr/~bingul/opac202 Optical & Acustical Engineering Gaziantep University Feb
Observational Astronomy
Observational Astronomy Instruments The telescope- instruments combination forms a tightly coupled system: Telescope = collecting photons and forming an image Instruments = registering and analyzing the
DEFINITION OF ILLUMINANCE
ILLUMINANCE DEFINITION OF ILLUMINANCE The quantity actually measured in photometry is illuminance, the amount of luminous flux incident per unit area. (Some texts refer to this quantity as illumination.)
LED Metrology. Color Education Series
Color Education Series LED Metrology Energy effi cient solid state lighting is advancing and a good understanding of lighting principles and measurement ensures accurate and internationally comparable
COLOR and the human response to light
COLOR and the human response to light Contents Introduction: The nature of light The physiology of human vision Color Spaces: Linear Artistic View Standard Distances between colors Color in the TV 2 How
CH 1. Large coil. Small coil. red. Function generator GND CH 2. black GND
Experiment 6 Electromagnetic Induction "Concepts without factual content are empty; sense data without concepts are blind... The understanding cannot see. The senses cannot think. By their union only can
\Ç à{x ÇtÅx Éy ALLAH à{x `xüv yâä
\Ç à{x ÇtÅx Éy ALLAH à{x `xüv yâä Ultraviolet Radiation from Some Types of Outdoor Lighting Lamps Dr.Essam El-Moghazy Photometry and Radiometry division, National Institute for Standards (NIS), Egypt.
EECS490: Digital Image Processing. Lecture #12
Lecture #12 Image Correlation (example) Color basics (Chapter 6) The Chromaticity Diagram Color Images RGB Color Cube Color spaces Pseudocolor Multispectral Imaging White Light A prism splits white light
Antenna Parameters. Ranga Rodrigo. University of Moratuwa. December 15, 2008
Antenna Parameters Ranga Rodrigo University of Moratuwa December 15, 2008 Ranga Rodrigo (University of Moratuwa) Antenna Parameters December 15, 2008 1 / 47 Summary of Last Week s Lecture 90 o Radiation
Photometric Test Report
Photometric Test Report Relevant Standards IES LM-79-2008, ANSI C82.77-2002, CIE 13.3-1995 CIE 15-2004, ANSI C78.377-2015, IES TM-30-2015 Prepared For Smart Grow Technologies 69319 Panoramic Dr Sisters,
Antenna and Noise Concepts
Antenna and Noise Concepts 1 Antenna concepts 2 Antenna impedance and efficiency 3 Antenna patterns 4 Receiving antenna performance Levis, Johnson, Teixeira (ESL/OSU) Radiowave Propagation August 17, 2018
What does reciprocity mean
Antennas Definition of antenna: A device for converting electromagnetic radiation in space into electrical currents in conductors or vice-versa. Radio telescopes are antennas Reciprocity says we can treat
RGB Laser Meter TM6102, RGB Laser Luminance Meter TM6103, Optical Power Meter TM6104
1 RGB Laser Meter TM6102, RGB Laser Luminance Meter TM6103, Optical Power Meter TM6104 Abstract The TM6102, TM6103, and TM6104 accurately measure the optical characteristics of laser displays (characteristics
Radiometric Use of WorldView-3 Imagery. Technical Note. 1 WorldView-3 Instrument. 1.1 WorldView-3 Relative Radiance Response
Radiometric Use of WorldView-3 Imagery Technical Note Date: 2016-02-22 Prepared by: Michele Kuester This technical note discusses the radiometric use of WorldView-3 imagery. The first two sections briefly
Antenna Engineering Lecture 3: Basic Antenna Parameters
Antenna Engineering Lecture 3: Basic Antenna Parameters ELC 405a Fall 2011 Department of Electronics and Communications Engineering Faculty of Engineering Cairo University 2 Outline 1 Radiation Pattern
Polarization Experiments Using Jones Calculus
Polarization Experiments Using Jones Calculus Reference http://chaos.swarthmore.edu/courses/physics50_2008/p50_optics/04_polariz_matrices.pdf Theory In Jones calculus, the polarization state of light is
JAWIRA TIMUR SDN. BHD.,
SIRIM QAS International Sdn.Bhd. (410334-X) No.1, Persiaran Dato Menteri, Section 2, P.O.BOX 7035, 40700 Shah Alam, Selangor Darul Ehsan, Malaysia. Tel: 03-55446252 Fax: 03-55446272 www.sirim-qas.com.my
Color Image Processing. Jen-Chang Liu, Spring 2006
Color Image Processing Jen-Chang Liu, Spring 2006 For a long time I limited myself to one color as a form of discipline. Pablo Picasso It is only after years of preparation that the young artist should
COLOR. and the human response to light
COLOR and the human response to light Contents Introduction: The nature of light The physiology of human vision Color Spaces: Linear Artistic View Standard Distances between colors Color in the TV 2 Amazing
The Formation of an Aerial Image, part 2
T h e L i t h o g r a p h y T u t o r (April 1993) The Formation of an Aerial Image, part 2 Chris A. Mack, FINLE Technologies, Austin, Texas In the last issue, we began to described how a projection system
Lecture Color Image Processing. by Shahid Farid
Lecture Color Image Processing by Shahid Farid What is color? Why colors? How we see objects? Photometry, Radiometry and Colorimetry Color measurement Chromaticity diagram Shahid Farid, PUCIT 2 Color or
Capabilities of NIST SIRCUS for Calibrations of SSI Vis-IR Instruments
Capabilities of NIST SIRCUS for Calibrations of SSI Vis-IR Instruments Steve Brown National Institute of Standards & Technology Gaithersburg, MD steve.brown@nist.gov; 301.975.5167 Answer: Ask LASP folks
SIM University Color, Brightness, Contrast, Smear Reduction and Latency. Stuart Nicholson Program Architect, VE.
2012 2012 Color, Brightness, Contrast, Smear Reduction and Latency 2 Stuart Nicholson Program Architect, VE Overview Topics Color Luminance (Brightness) Contrast Smear Latency Objective What is it? How
Influence of the light spectral distribution used in the radiometers calibration
Influence of the light spectral distribution used in the radiometers calibration J C Moraes and L O Guerra Allergisa Pesquisa Dermato-Cosmética Ltda GRUPO INVESTIGA, 452. Dr. Romeu Tórtima Avenue, Postcode: