Focusing method and apparatus for light emitting device

Details Focusing method and apparatus for light emitting device Focusing method and apparatus for light emitting device

G - Physics

02

B

G02B 27/40 (2006.01) A63F 9/02 (2006.01) F41A 33/02 (2006.01) F41J 5/02 (2006.01) F41J 5/26 (2006.01) F41J 7/04 (2006.01)

Patent

CA 2423508

A light emitting apparatus including an emitter configured to emit electromagnetic radiation of a predetermined spectrum including visible light and infrared light, and a plurality of focusing chambers, each focusing chamber including an aperture, wherein light from the emitter passes successively through at least a first of the chambers and an aperture of the first chamber, and through a second of the chambers and an aperture of the second chamber before exiting the apparatus.

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