Device and method for adjusting the value of chromatism aberrati

Details Device and method for adjusting the value of chromatism aberrati Device and method for adjusting the value of chromatism aberrati

1979-04-20

1981-02-03

Murray, Richard

Facsimile and static presentation processing

Static presentation processing

Attribute control

H04N 904

Patent

active

042492041

ABSTRACT:
These device and method for adjusting the value of the chromatism and distortion aberrations in an optical system, notably for color television cameras, by using a diascope from which a color image is injected into the optical system, comprises an assembly of at least four prismatic blades forming two optically parallel groups of variable thickness, each group comprising two such blades, the blades consisting of transparent materials having the same index of refraction and the same index of dispersion of the blades of the same group, but a different index of dispersion for each group, with control means for varying the thickness of each group while preserving a constant total thickness.

REFERENCES:
patent: 4164752 (1979-08-01), Doi et al.

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