Achromatic objective lens

Details Achromatic objective lens Achromatic objective lens

1978-10-23

1980-02-26

Sacher, Paul A.

G02B 916

Patent

active

041903242

ABSTRACT:
An achromatic objective lens having an aperture ratio of about 1:12 and a viewing angle of about .+-.1.degree. for use in an astronomical telescope is disclosed. The lens uses conventionally available optical materials matched to produce optimum compensation of various aberrations.

REFERENCES:
patent: 3443864 (1969-05-01), Ackroyd

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