Variator optical system

Details Variator optical system Variator optical system

1993-08-02

1995-09-19

Sugarman, Scott J.

Optical: systems and elements

Lens

Selective magnification by exchanging or adding a lens...

359673, 359674, 359675, G02B 1502

Patent

active

054521335

ABSTRACT:
An afocal optical module simulator (aoms) for use in conjunction with one or two other optical modules to simulate an afocal variator optical system. The aoms is comprised of an optical module having a front and a rear end, and includes a movable negative lens. The front end of the aoms includes a mechanism for securing a front optical module which may include as its rear most element a positive lens system which will be located juxtaposed to, but spaced from, the movable negative lens within the aoms. Similarly, the rear end of the aoms includes a mechanism for securing a rear optical module, which includes as its front most element a positive lens system which will be located juxtaposed to, but spaced from, the movable negative lens within the aoms. The front optical system provides an optical element adjacent to the front of the movable negative central optical element, and/or a rear optical system provides an optical element adjacent to the rear of the movable negative central optical element, which front and/or a rear optical system can be connected in combination to vary the actual focal length of the front optical system in conjunction with the rear optical system without the need to physically change the length dimension of any system, and without the need to change the position of any lens other than the central movable negative optical element, and without the need to change the lenses of the front or rear optical systems.

REFERENCES:
patent: 3853387 (1974-12-01), Demaine et al.
patent: 4427268 (1984-01-01), Ikemori

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