Process for manufacturing a double refraction plate

Details Process for manufacturing a double refraction plate Process for manufacturing a double refraction plate

1986-02-18

1987-04-14

Bueker, Richard

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

350401, 427105, 427163, 427164, 427166, 427167, 4272481, 427255, G02B 530, B05D 506

Patent

active

046573500

ABSTRACT:
A novel process for producing a double refraction plate is disclosed. According to the process, a transparent dielectric material is directed to and deposited on a substrate from an oblique direction. Above all, for controlling the retardation of the resulting double refraction plate, a polarized light having a plane of polarization in a specific direction relative to the substrate is directed to the substrate through the variable phase plate and the light reflected from the substrate is observed through the variable phase plate, as the dielectric material is deposited from an oblique direction.

REFERENCES:
patent: 2973686 (1961-03-01), Dreytus et al.
patent: 3698946 (1972-10-01), Kaspaul et al.
patent: 3834792 (1974-09-01), Janning
patent: 4024291 (1977-05-01), Wilmanns
patent: 4150877 (1979-04-01), Kobale et al.
patent: 4248502 (1981-02-01), Bechteler et al.

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