Image colorimeter

Details Image colorimeter Image colorimeter

1974-04-04

1976-02-17

Segal, Robert

Optics: measuring and testing

Refraction testing

Prism engaging specimen

356230, G01J 334

Patent

active

039388964

ABSTRACT:
A colorimeter includes an objective for focusing an object image on a first half of a viewing screen. A standard light reference beam is projected onto the second half of the screen. A moving shutter alternately blocks the first half then the second half of the screen. A light detector is responsive to the alternating images on the screen as they pass through color filters. The detector output may provide information of spectral distribution or color deviation of the object, relative to the standard reference.

REFERENCES:
patent: 2034096 (1936-03-01), Hauser
patent: 2739246 (1956-03-01), Hunter
patent: 3735143 (1973-05-01), Langford

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