Re-focusing mechanism for imaging system

Details Re-focusing mechanism for imaging system Re-focusing mechanism for imaging system

2007-07-24

2007-07-24

Lavarias, Arnel (Department: 2872)

Optical: systems and elements

Compound lens system

Telescope

C359S834000, C359S857000, C359S862000, C359S863000

Reexamination Certificate

active

11123946

ABSTRACT:
Two reflective surfaces disposed in a predetermined angular orientation inside the optical tube assembly of a telescope intercept the optical beam and deliver it from the objective to the eye-piece. By translating these surfaces simultaneously along the axis bisecting the angle between them, the separation between the focal points of the objective and the eye-piece is adjusted as required to re-focus the telescope in a continuous and reversible fashion without changing its overall dimensions.

REFERENCES:
patent: 3076380 (1963-02-01), Brockway
patent: 4812613 (1989-03-01), Gorisch
patent: 4983043 (1991-01-01), Harding
patent: 5097110 (1992-03-01), Hamada et al.
patent: 5237446 (1993-08-01), Takahashi
patent: 5321547 (1994-06-01), Zapp

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