Oct 31 2007
In a pair of binoculars, is there a way to get more light through the same sized exit pupil?
jondalar469 asked:
The exit pupil diameter is normally found by dividing the diameter of the objective lens by the power of the instrument. But there ought to be a way to get more light through the instrument without changing the exit pupil diameter. Maybe a preamplifier optical instrument that has a larger objective, which feeds the binocular objective from its own exit pupil?
The exit pupil diameter is normally found by dividing the diameter of the objective lens by the power of the instrument. But there ought to be a way to get more light through the instrument without changing the exit pupil diameter. Maybe a preamplifier optical instrument that has a larger objective, which feeds the binocular objective from its own exit pupil?
Is there such an instrument? Would it be possible to make such an instrument?
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