Title:
プロジェクタ
Document Type and Number:
Japanese Patent JP4052282
Kind Code:
B2
Abstract:
A projector which is small in size and excellent in light utilization efficiency while keeping the advantage of a spatially-pixel-arrangement type is provided. The luminous flux emitted from a light source is separated by a color separation system into a plurality of kinds of colors of light different in exit direction. These separated colors of light are modulated by a light valve, to form first optical images. The light valve has a plurality of sub-pixels provided corresponding to the colors of light and micro-lenses to focus the colors of light corresponding to the sub-pixels. The sub-pixels are structured in a size nearly equal to a size of a color of light to be focused on the relevant sub-pixel by micro-lenses. Accordingly, the first optical image is in a form non-analogous with the actual projection image. The first optical images are converted into second optical images having a desired aspect ratio by an anamorphic projection system, and then projected.
Inventors:
Yoshitaka Ito
Application Number:
JP2004138279A
Publication Date:
February 27, 2008
Filing Date:
May 07, 2004
Export Citation:
Assignee:
Seiko Epson Corporation
International Classes:
G02F1/13; G03B21/00; G03B21/14
Domestic Patent References:
| JP2001100314A | ||||
| JP6186524A | ||||
| JP2001359112A | ||||
| JP2000241769A | ||||
| JP2000241770A | ||||
| JP9318904A | ||||
| JP2001255605A | ||||
| JP2003021830A | ||||
| JP10239687A | ||||
| JP2000284361A | ||||
| JP10148885A |
Attorney, Agent or Firm:
Kazuya Nishi
Masatake Shiga
Masakazu Aoyama
Masatake Shiga
Masakazu Aoyama