Device for colorimetric measurement of a display screen

Details Device for colorimetric measurement of a display screen Device for colorimetric measurement of a display screen

1996-01-05

1997-12-30

McGraw, Vincent P.

Optics: measuring and testing

By shade or color

With color transmitting filter

250226, 356419, G01J 351

Patent

active

057036861

ABSTRACT:
Measurement device, for the colorimetric measurement of a display screen. The device includes a first lens which forms the image of the Fourier transform of the elementary surface to be measured. An optical system is used to form a second lens which projects the image of the transform onto a set of detectors. The second lens (10) comprises an input lens (11) after the image plan (Fi) of the first lens (1), a colour filter (12) formed by filters (12l) which are associated with each colour, an output lens (13), downstream of the colour filter (12) for focusing the beams onto the detectors (7i, J) of the sensor (7), and a processing circuit (18).

REFERENCES:
patent: 4648714 (1987-03-01), Benner et al.
International Search Report Re France Application 9500118.

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