Image projectors with pivoting mirror in front screen projection

Details Image projectors with pivoting mirror in front screen projection Image projectors with pivoting mirror in front screen projection

1988-02-04

1989-07-11

Hix, L. T.

Illumination

Supported by vehicle structure

Condition responsive

354291, 362 12, 353 28, G03B 2900, G03B 2126

Patent

active

048476455

ABSTRACT:
A projector with two levels of illumination for projecting images from a film transparency is disclosed. Monitoring circuitry configures the level projector for the appropriate lead of illumination depending upon an operator request for preview illumination or a heightened level of illumination for exposure of a photograph of a composite optical image including the projected image. The monitoring circuitry also prevents excessive duration of illumination at the preview level.

REFERENCES:
patent: 2727427 (1955-12-01), Jenkins
patent: 2727429 (1955-12-01), Jenkins
patent: 3322487 (1967-05-01), Renner
patent: 3911450 (1975-10-01), Schwartz
patent: 4422745 (1983-12-01), Hopson

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