Title:
固体緑色光源を用いたプロジェクタ光源
Document Type and Number:
Japanese Patent JP4580052
Kind Code:
B2
Abstract:
A light sourceÄ12. 60Ü constructed from a two dimensional array of light emitting devices. The light emitting devices include first, second and third typeÄ62Üs of light emitter. The first typeÄ65Ü of light emitting device covers a first area in the two dimensional array and emits light in a first region of the optical spectrum. The second typeÄ62Ü of light emitting device covers a second area in the two dimensional array and emits light in a second region of the optical spectrum, and the third typeÄ62Ü of light emitting device covers a third area in the two dimensional array and emits light in a third region of the optical spectrum. The first, second, and third areas are chosen such that the simultaneous output from all emitters generates white light. At least one of the emitter types covers an area larger than that covered by the others. In the preferred embodiment of the present invention, the first typeÄ65Ü of light emitting device includes a light emitting deviceÄ61Ü that emits light at a wavelength less than the wavelength of a green region of the optical spectrum. A color conversion compoundÄ63Ü for absorbs the emitted light and emitting light in the green region of the optical spectrum.
Inventors:
Andreas G. Webber
Gerd Muller
William Earl Turtona, Jr.
Gerd Muller
William Earl Turtona, Jr.
Application Number:
JP35727499A
Publication Date:
November 10, 2010
Filing Date:
December 16, 1999
Export Citation:
Assignee:
Avago Technologies EBC IP (Singapore) Private Limited
International Classes:
H01L33/00; H01L33/02; G03B21/20; G03B27/54; G09F9/00; H01L33/50
Domestic Patent References:
| JP10123512A | ||||
| JP10188649A | ||||
| JP7099345A | ||||
| JP10091091A | ||||
| JP10319877A | ||||
| JP11003051A |
Attorney, Agent or Firm:
Satoshi Furuya
Takahiko Mizobe
Kiyoharu Nishiyama
Takahiko Mizobe
Kiyoharu Nishiyama