Short focal length Petzval-type optical system

Details Short focal length Petzval-type optical system Short focal length Petzval-type optical system

1974-11-11

1976-03-09

Corbin, John K.

G02B 934

Patent

active

039428770

ABSTRACT:
This invention relates to a short focal length, large aperture Petzval-type optical system primarily designed to efficiently transmit light rays to an image plane with an extraordinarily high degree of correction over a prescribed field.

REFERENCES:
patent: 2744445 (1956-05-01), Werfeli
patent: 3450463 (1969-06-01), Yasuda
patent: 3623791 (1971-11-01), Uetake

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