Quartz optical filter

Details Quartz optical filter Quartz optical filter

1989-09-15

1991-08-20

Bovernick, Rodney B.

Optical: systems and elements

Polarization without modulation

By relatively adjustable superimposed or in series polarizers

359502, G02B 528

Patent

active

050408801

ABSTRACT:
By forming corner parts of transparent quartz plates and the glass plate in rounded arc shape, in a mirror-surface finishing to accurate plane, polishing powder grain can flow out smoothly and evenly from all the periphery of the plates, and thus the surfaces of those component plates are finished to accurate plate of mirror-surfaces, without making a recessed part at their central parts which has been observed in the conventional plates of rectangular form, and hence, a quartz optical filter made by laminating the improved plates having accurate planes attains an excellent performance characteristic which does not give any degradation in light propagation.

REFERENCES:
patent: 4407566 (1983-10-01), Rosenberg et al.
patent: 4500178 (1985-02-01), Yeh
patent: 4761682 (1988-08-01), Asaida

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