Scrolling unit and projection system using the same

Details Scrolling unit and projection system using the same Scrolling unit and projection system using the same

2006-02-14

2006-02-14

Mahoney, Christopher (Department: 2851)

Optics: image projectors

Composite projected image

Multicolor picture

C353S034000, C353S037000, C359S210100

Reexamination Certificate

active

06997562

ABSTRACT:
A scrolling unit and a projection system using the same are provided. The scrolling unit is formed by spirally arranging on an outer circumferential surface of a column-like plate at least one lens cell which separates the incident light into a plurality of beams. As the scrolling unit rotates about a predetermined rotating axis, a lens array, defined by an area of the scrolling unit through which light passes, moves rectilinearly. Due to the use of the scrolling unit, a simple projection system can be obtained, and color scrolling is easily performed.

REFERENCES:
patent: 6288815 (2001-09-01), Lambert
patent: 6332684 (2001-12-01), Shibatani et al.
patent: 6619802 (2003-09-01), Janssen et al.
patent: 2002/0191154 (2002-12-01), Shahzad et al.
patent: 11-281930 (1999-10-01), None
patent: 1999-002347 (1999-01-01), None

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