Mirror collimator having a large aperture ratio

Details Mirror collimator having a large aperture ratio Mirror collimator having a large aperture ratio

1992-07-07

1994-03-29

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

359859, H01J 314

Patent

active

052987361

ABSTRACT:
A mirror collimator has a larger parabolic mirror (11) and a smaller convexly shaped capture mirror (12) arranged at the concave side of the parabolic mirror and on its optical axis (27). A cut-out 15 is formed at the common focal point of the parabolic mirror (11) and of the capture mirror (12) and a photo-element (16) is arranged in the area of this cut-out (15). The capture mirror (12) is secured to the parabolic mirror (11) by at least one carrying device (17) extending alongside the cut-out (15).

REFERENCES:
patent: 3817605 (1974-06-01), Franklin
patent: 4695139 (1987-09-01), Bagby et al.
patent: 4792685 (1988-12-01), Yamakawa

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