1977-08-05
1979-03-20
Stern, Ronald J.
G02B 528
Patent
active
041451139
ABSTRACT:
An interference filter having a plurality of alternating layers of high and low index of refraction and layer thickness increasing toward the center can compensate for errors in spectral energy distribution produced by an optical system.
REFERENCES:
patent: 2742819 (1956-04-01), Koch et al.
Dobrowolski, Applied Optics, vol. 9, No. 6, Jun. 1970, pp. 1396-1402.
Ranninger Guenther
Twaroch Franz
C. Reichert Optische Werke AG
Duggan Jeremiah J.
Spencer Alan H.
Stern Ronald J.
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