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a bout television

S

sp

Jan 1, 1970
0
we donnot see the tv in dark rooms.
because it will effect the eyes
but in theaters why they are seeing the dark rooms
 
J

John Popelish

Jan 1, 1970
0
sp said:
we donnot see the tv in dark rooms.
because it will effect the eyes

And the effect is the illusion of scenes from elsewhere. I
like to watch TV in the dark, though it does strain the eyes
a bit.
but in theaters why they are seeing the dark rooms

The only way a white screen can produce the illusion of
black is if it is displayed in darkness. A television
screen lit by room light is much darker than a movie screen
lit at the same level. The TV CRT glass is intentionally
tinted to achieve this effect, even though it wastes some of
the brightness. Having a tinted screen allows the TV to
reproduce the darker parts of the image in reasonable room
light. A movie screen cannot do the same, because its
operation relies on reflection, not an internal light
production.

If they were to increase projected light so that the bright
parts of the image contracted your pupils enough that the
parts of the screen, lit by normal room illumination, looked
dark by comparison, they would melt the film. Remember
that all the light seen by the entire audience, watching
that large screen, first passed through a postage stamp
sized frame of film, with a brightness rivaling the Sun.
 
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