Spiral lens disk and projection system employing the same

Details Spiral lens disk and projection system employing the same Spiral lens disk and projection system employing the same

2005-02-01

2005-02-01

Mack, Ricky (Department: 2873)

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

C359S619000

Reexamination Certificate

active

06850369

ABSTRACT:
A spiral lens disk and a projection system adopting the same are provided. The spiral lens disk has spirally arranged cylinder lens cells and scrolls incident light by converting the rotation of the cylinder lens cells into rectilinear motion of a cylinder lens array. The projection system includes at least one spiral lens disk such that color scrolling is achieved using a single component to form a color image. Due to a reduction in the number of components, a light, low-price projection system can be obtained, and a single-panel projection system with high light efficiency can also be obtained.

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patent: 20040057018 (2004-03-01), Cho et al.
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