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holophote
[ hol-uh-foht, hoh-luh- ]
noun
- an apparatus by which practically all the light from a lighthouse lamp or the like is thrown in a desired direction.
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Word History and Origins
Origin of holophote1
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Example Sentences
A fixed holophote is placed inside the optic in the dark or landward arc, and at the focal plane of the lamp.
From Project Gutenberg
The focus observer is shown on the lamp in holophote, Fig. 172.
From Project Gutenberg
The catadioptric lens, or holophote, gives a far more powerful but a more concentrated beam than the parabolic reflector.
From Project Gutenberg
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