Optical system for a coherent light illuminating source

Details Optical system for a coherent light illuminating source Optical system for a coherent light illuminating source

1977-08-02

1978-12-19

Stern, Ronald J.

350 381, G02B 2728

Patent

active

041303482

ABSTRACT:
An optical system for a object illuminating light source includes a phase plate for giving "0"-relative phases or ".pi."-relative phases to the incident light fluxes to cancel with respect to one another all the interference fringes except for those two light fluxes incident to define a maximum angle.

REFERENCES:
patent: 3782804 (1974-01-01), Kanazawa et al.
patent: 3838904 (1974-10-01), Takeda et al.
patent: 3862357 (1975-01-01), Kanazawa et al.
Tsunoda et al., Applied Optics, vol. 13, No. 9, Sep. '74, pp. 2046-2051.

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