Video Systems - Chp 5 Flashcards
(15 cards)
Electromagnetic radiation is categorized by its ____.
Wavelength
Generally, a ____ measurement of incident light is taken at a task area like a video screen.
Foot-candle
Illumination decreases by ____ when the distance from a light source is doubled.
75 percent
The amount of ambient light in a displayed environment ____ the quality of the displayed image.
Negatively affects
The native resolution of a display device is defined by its ____.
Horizontal rows and vertical columns of pixels
What is the minimum contrast ratio required for viewing full-motion video according to the Projected Image System Contrast Ratio standard?
80:1
Four factors related to primary optics that influence the quality of the projected image are ____.
Refraction, dispersion, spherical aberration, and curvature of field
Three of the major formats of digital video connections are ____.
DVI, HDMI, and DisplayPort
To measure the bandwidth of an image, you will need a ____.
Spectrum analyzer
Rear-screen display applications are considered ____.
Transmissive
LCDs first pass light through a ____, which blocks certain light waves.
Polarizer
When selecting a display type, your first step should be to ____.
Determine what you want to display
The ____ the gain number of a projection screen, the ____ the image.
Higher; brighter
What quality would the image have if the phase setting of a display needs adjusting?
Fuzzy details
The formula for an ANSI lumen rating is ____.
L = SH × SW × AI
