What are the two physical models that have been long used to explain properties of optical radiation?
wave and electromagnetic models
wave and particle models
electromagnetic and Maxwell models
particle and Maxwell models
What is the range of wavelengths that produce vision?
380- 760 nm
750-2000 nm
400-550 nm
250-400 nm
What does the equation Q= h v, define?
Quantum of Frequency
Quantum of Electron Volts
Quantum of Energy
Quantum of the Speed of Light
Whose equation describes the amount of optical radiation reflected by a surface:
Augustine Fresnel
James Clerk Maxwell
Leonard Euler
Thomas Young
What optical phenomena are used to control optical radiation in lighting?
Refraction
Transmission
Interference
Reflection
Diffraction
Dispersion
All of the above
Approximately how many photoreceptors does each eye contain?
100 million
40 million
100 thousand
140 million
In what state of vision is there no perception of color?
Mesopic Vision
Scotopic Vision
Photopic Vision
In what state of vision is reaction times used in lieu of standard methods of brightness matching?
In what state of vision is the visual response dominated by the cone photoreceptors?
Why is abnormal color vision more prominent in males versus females?
Females have one X- Chromosome and Males have two
Females have two X- Chromosomes and Males have one
Males have two abnormal genes in their X-Chromosomes and Females do not
What is the process the visual system utilizes to change its sensitivity to accommodate the retinal illumination from the potential exposure to 0.01lx to 100,000 lx?
Saturation
Degeneration
Retinopathy
Adaptation
What is the wavelength region that visible radiation occupies that is bounded by UV and IR?
780 nm to 1400 nm
3000 nm to 1 mm
400 nm to 750 nm
1400 nm to 3000 nm
What optical radiation characteristics affect the magnitude of the phase- resetting response in circadian rhythm:
A: Quantity B: Spectrum C: Timing D: Duration E: Pattern F: Prior Optical Radiation Exposure
A, C, D, and E
F Only
B, D, and E
What is defined as the ability to resolve fine details and is ultimately limited by diffraction, aberrations, and the photoreceptor density of the retina?
Threshold Visibility
Acuity
Supratreshold Visibility
What has been found to effectively reduce symptoms of SAD in many patients?
Depression Medication
Light Therapy
Changing Work/ School Patterns
Surgery
What determines the amount of light entering the eye?
A: Pupil Size B: Time C: Luminances of the object being viewed
A and B
B and C
A and C
All of the Above
Which of the following are factors affecting brightness:
A: Object Luminance B: Visual Size C: Spatial Frequency D: Surround Luminace
C and D
A and D
How does glare occur?
Luminance is too high and luminance ratios are too high
Illuminance is too high and Illuminance ratios are too high
Luminance is too high and Illuminance ratios are too high
Illuminance is too high and luminance ratios are too high
What is defined by a sensation of annoyance or pain caused by high luminances in the field of view?
Disability Glare
Spatial Vision
Discomfort Glare
Adaptation Luminance
What is defined by reduced visibility due to light scattered in the eye, reducing the luminance contrast of the retinal image?
