Solar radiation sensor for use in an automatic air conditioner

Details Solar radiation sensor for use in an automatic air conditioner Solar radiation sensor for use in an automatic air conditioner

1989-02-15

1991-11-12

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502034, H01J 314

Patent

active

050650157

ABSTRACT:
Disclosed is a solar radiation sensor apparatus. A light-blocking plate is provided above the light-receiving surface of a photoelectric element, and has an area smaller than the area of the light-receiving surface. The incident angle sensitivity characteristic of the sensor apparatus can be improved without involving any increase in the external dimensions of the sensor apparatus.

REFERENCES:
patent: 2402662 (1946-06-01), Ohl
patent: 3539883 (1970-11-01), Harrison
patent: 3614775 (1971-10-01), Brean
patent: 3836773 (1974-09-01), Burke et al.
patent: 4358186 (1982-11-01), Johnson et al.
patent: 4850692 (1989-07-01), Hirao et al.

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