Device for correcting perspective distortions

Details Device for correcting perspective distortions Device for correcting perspective distortions

1990-04-05

1991-09-03

Arnold, Bruce Y.

Optical: systems and elements

Lens

With support

359815, 359554, G02B 702, G02B 2764, G02B 2732

Patent

active

050447289

ABSTRACT:
The invention relates to an arrangement known generally as a PC-adapter or shift adapter. The objective is mounted on one component of the arrangement which can undergo a pivot movement relative to the image format thereby making possible the necessary movement of the objective relative to the image format. The pivot point is disposed as far as possible from the optical axis and outside of the beam pass-through opening of the arrangement.

REFERENCES:
patent: 2931268 (1960-04-01), Gelb
patent: 3713725 (1973-01-01), Uesugi
patent: 3825938 (1974-07-01), Koch
patent: 3839684 (1974-10-01), Matsuoka et al.
patent: 4081812 (1978-03-01), Flother
patent: 4160581 (1979-07-01), Weissler
patent: 4437730 (1984-03-01), Pickett
patent: 4521076 (1985-06-01), Weber et al.
patent: 4909617 (1990-03-01), Boyd

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