Method of making a rotational optical arrangement, and the...

Details Method of making a rotational optical arrangement, and the... Method of making a rotational optical arrangement, and the...

2006-03-07

2006-03-07

Robinson, Mark A. (Department: 2872)

Optical: systems and elements

Absorption filter

With support or frame

C359S200700, C359S234000

Reexamination Certificate

active

07009788

ABSTRACT:
A method of making a rotational optical arrangement and the arrangement made by the method, wherein the method includes providing a rotatable unit. The unit has a surface extending transverse to a center axis of the unit and at a predefined angle to an interface normal direction, and the unit having a pattern with at least two portions that each have a different optical characteristic. A mechanism is provided for rotating the unit around a mechanism-induced rotational axis. The center axis of the unit is separately aligned to the mechanism-induced rotational axis for radial offset correction. The interface normal direction is separately aligning to the mechanism-induced rotational axis for skew correction.

REFERENCES:
patent: 4165919 (1979-08-01), Little
patent: 4249824 (1981-02-01), Wiederrich et al.
patent: 4556278 (1985-12-01), Schell
patent: 4756586 (1988-07-01), Witteveen
patent: 5183350 (1993-02-01), Kramer
patent: 5371543 (1994-12-01), Anderson

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