Micro non-imaging light concentrators for image sensors with a l

Details Micro non-imaging light concentrators for image sensors with a l Micro non-imaging light concentrators for image sensors with a l

1993-03-30

1994-10-04

Nelms, David C.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2502082, 359626, H01J 314

Patent

active

053528867

ABSTRACT:
An array of micro-sized converging light transmissive channels is positioned between a lenslet array and an array of pixel detectors. The result is that the detectors are substantially smaller than upper portions of the channels and non-optical components may be positioned between the detectors. The side walls of the channels are reflective and have a hyperbolic or parabolic shape to maximize the acceptance angle of rays entering the device for maximum efficiency. A method of producing the channels employing a micro-sized machine bit is also disclosed.

REFERENCES:
patent: 3899672 (1975-08-01), Levi-Setti
patent: 4323925 (1982-04-01), Abell et al.

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