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US 4,678,321 AGranted
Anamorphic focusing system
AssigneeRicoh Company, Ltd.
InventorToshiyuki Inokuchi
Life of this patent
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Abstract
An anamorphic focusing system includes a focusing device including a roof-mirror-lens array for focusing an image of an object, and a cylindrical lens disposed in an optical path extending from the focusing device toward the image for magnifying the image in a direction perpendicularly to the longitudinal direction of the roof-mirror-lens array.
Claims6
An anamorphic focusing system comprising:
- a focusing device including a roof-mirror-lens array for focusing an image of an object;
- a cylindrical lens disposed in an optical path extending from said focusing device toward the image for magnifying the image in a direction perpendicular to the longitudinal direction of said roof-mirror-lens array;
- and
- a transparent plate for compensating the length of the optical path;
- wherein said cylindrical lens is movable into and out of said optical path and said transparent plate is movable into said optical path when said cylindrical lens is moved out of said optical path.
2 more elements
Dependencies are inferred from the claim text.