Prism optics and optical information processing apparatus

Details Prism optics and optical information processing apparatus Prism optics and optical information processing apparatus

1985-02-11

1988-09-13

Corbin, John K.

350 64, 350 68, 350286, G02B 1310, G02B 2608, G02B 504

Patent

active

047705078

ABSTRACT:
An optical system for converting the shape of a light beam by making use of refraction of prisms comprises a prism optic which includes a complex prism constituted by combination of at least two types of prisms made of materials differing from each other in respect to dispersion of refractivity. An optical information processing apparatus includes the optical system employing the prisms. Geometric optical properties of the optical system are insusceptible to being changed irrespective of changes in wavelength of the light beam brought about by dispersion in oscillation wavelength of a light source, change in the course of time lapse, change in ambient temperature and/or change in emitted light energy. With the optical system, information processing is realized which is insusceptible to the influence of the change in wavelength of the light beam.

REFERENCES:
patent: 2780140 (1957-02-01), Luboshez
patent: 2792751 (1957-05-01), Coleman
patent: 2855819 (1958-10-01), Luboshez
patent: 4017160 (1977-04-01), Betensky
patent: 4084881 (1978-04-01), Hirabayashi et al.
patent: 4203652 (1980-05-01), Hanada
patent: 4333173 (1982-06-01), Yonezawa et al.

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