Energy saving camera

Details Energy saving camera Energy saving camera

1983-08-24

1985-01-22

Perkey, William B.

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

354288, 136251, 136243, 250239, 320 2, 429163, 206333, G03B 726, G03B 1702, H01M 1044, H01L 3104

Patent

active

044948549

ABSTRACT:
A camera having a photovoltaic cell such as a solar cell is provided. A power supply circuit of a camera comprises a solar battery, a second battery and a switch. If the second battery is a secondary battery, the switch is closed to connect the solar and second batteries in parallel. Otherwise, the switch is kept open to disconnect the solar battery from the second battery. A particular upper cover structure is provided for mounting a photovoltaic device without deteriorating the rigidity and loosing light-tightness.

REFERENCES:
patent: 4227140 (1980-10-01), Nardella et al.
patent: 4231807 (1980-11-01), Keeling et al.
patent: 4296489 (1981-10-01), Mitsui
patent: 4328456 (1982-05-01), Suzuki et al.

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