Title:
デジタルマイクロミラーデバイス用全反射プリズム系及びそれを利用したプロジェクター
Document Type and Number:
Japanese Patent JP4004253
Kind Code:
B2
Abstract:
A TIR prism system for DMD and a projector adopting the same make a loss of incidence light be reduced, and having a small size and light weight. In a TIR prism system having the DMD and for total reflecting the incidence light to a certain direction in accordance with that the DMD is controlled, the TIR prism system of the present invention includes a first prism for receiving the incidence light on a surface set before, refracting the light, and outputting the refracted light, and a second prism coupled to the first prism for receiving the light outputted from the first prism, transmitting the light to the DMD, and outputting the transmitted light after being totally reflected in accordance with that the DMD is controlled, whereby a loss of light energy inside the system can be reduced.
Inventors:
Sung Gu Lee
Application Number:
JP2001244637A
Publication Date:
November 07, 2007
Filing Date:
August 10, 2001
Export Citation:
Assignee:
LG ELECTRONICS INC.
International Classes:
G02B5/04; G02B27/18; G02B26/08; G03B21/00; H04N5/74
Domestic Patent References:
| JP11505334A | ||||
| JP200047326A | ||||
| JP1082959A | ||||
| JP2000206455A | ||||
| JP821977A | ||||
| JP2000180795A | ||||
| JP2000206452A |
Attorney, Agent or Firm:
Masaki Yamakawa
Hiroro Kurokawa
Masayuki Konno
Osamu Nishiyama
Shigeki Yamakawa
Hiroro Kurokawa
Masayuki Konno
Osamu Nishiyama
Shigeki Yamakawa