Automatic lighting equipment and automatic lighting system using

Details Automatic lighting equipment and automatic lighting system using Automatic lighting equipment and automatic lighting system using

1995-07-26

1998-01-06

Lazarus, Ira S.

Illumination

Photographic lighting

Measuring or indicating

362 11, 362271, 362419, 362428, 356222, 396 4, G03B 1502

Patent

active

057047022

ABSTRACT:
An automatic lighting system simplifies reproduction of desired lighting conditions by use of a computer which compares characteristics of an actual subject to prestored data representing light locations for preferred lighting of a similar mimic subject, and orients mounted lighting fixtures accordingly. A plurality of light fixtures are mounted for movement on frame. Ideal locations of the light fixtures are determined for mimic subjects of various characteristics by a skilled photographer. The location and illumination data are then stored in computer memory. When an actual subject is placed in the same position as the mimic subject for photographing thereof, data for a mimic subject having characteristics closest to the actual subject are selected from the prestored data, and the light fixtures are automatically oriented accordingly in response to computer control. To assure proper orientation and illumination by the light fixtures, a hemispherical sensor including on its surface a plurality of photodiodes may be placed in the position of the subject the output of which is compared against stored data.

REFERENCES:
patent: 3375362 (1968-03-01), Klippert
patent: 3378678 (1968-04-01), DeGroff
patent: 3688676 (1972-09-01), Cruickshank
patent: 3845351 (1974-10-01), Ballmoos et al.
patent: 5093769 (1992-03-01), Luntsford
patent: 5347431 (1994-09-01), Blackwell et al.

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