Light emitting device with adjustable reflector cup

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With reflector – opaque mask – or optical element integral...

Reexamination Certificate

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Details

C257S099000, C257SE33058, C257SE33068, C257SE33073

Reexamination Certificate

active

11255544

ABSTRACT:
A light emitting device has a light emitting diode (LED), a reflector cup, and one or more adjustment mechanisms to control the intensity profile of light emitted from the light emitting device. The reflector cup has a base and a sidewall extending outward from the base. A base adjustment mechanism controls the total amount of light reflected from the base and into the beam of light emitted from the light emitting mechanism by controlling the aggregate reflectivity of the base. A sidewall adjustment mechanism controls the angle of the sidewall relative to the base. A vertical adjustment mechanism vertically raises or lowers the LED relative to the base.

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Tuantranont, Adisorn et al., “Segmented Silicon-Micromachined Microelectromechanical Deformable Mirrors for Adaptive Optics,” IEEE Journal of Selected Topics in Quantum Electronics, vol. 8, No. 1, Jan./Feb. 2002.

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