Precision slit of adjustable width for a spectral instrument

Details Precision slit of adjustable width for a spectral instrument Precision slit of adjustable width for a spectral instrument

1992-03-27

1993-04-27

Ben, Loha

Optical: systems and elements

Optical aperture or tube, or transparent closure

359896, 356333, G02B 500

Patent

active

052067653

ABSTRACT:
A precision slit of adjustable width in which each slit jaw is guided via at least two guide parallelograms lying opposite each other and in which a single setting member acting jointly on the guide parallelograms of one side and displaceable perpendicular to the direction of movement of the slit jaws is provided for the setting of slit width. In a preferred embodiment, the guide parallelograms are developed as spring parallelograms, an embodiment prepared monolithically from a plate of compliant material and having particular advantages.

REFERENCES:
patent: 2587451 (1952-02-01), Farrand
patent: 3840206 (1974-10-01), Palmer
patent: 4722500 (1988-02-01), Bray

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