Control of the level of illumination premises

Details Control of the level of illumination premises Control of the level of illumination premises

1992-05-13

1993-08-17

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250551, H01J 4014

Patent

active

052371689

ABSTRACT:
An installation for the control of the level of illumination of premises provided with openings towards the outside and acting on means for blocking the openings or on means for variable artificial illumination associated with controllable operating devices, on the one hand by means of contacts which can be actuated manually and, on the other hand, by an automatic control comprising a logical processing unit depending on a reference value corresponding to a level of illumination established by the user and recorded by the LPU. The photosensitive means measuring the illumination are mounted on a mobile module in which the LPU is also preferably mounted. The reference value is established by means of the contacts and is recorded in the LPU either automatically or by actuating a third contact.

REFERENCES:
patent: 4273999 (1981-06-01), Pierpoint
patent: 5019747 (1991-05-01), Morita et al.

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