Remote-control-light detecting device for AV apparatus

Details Remote-control-light detecting device for AV apparatus Remote-control-light detecting device for AV apparatus

1990-03-16

1991-07-30

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, H01J 314, H01J 502

Patent

active

050361880

ABSTRACT:
A remote-control-light detecting device includes a light-receiving lens which is fitted in a front panel of an AV apparatus and has a wide-angle lens surface. Examples of the wide-angle lens surface are a spherical surface and a pyramidal surface.

REFERENCES:
patent: 4907139 (1960-03-01), Quiogue

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