Title:
FIELD-EMISSION LIGHT SOURCE
Document Type and Number:
WIPO Patent Application WO/2011/138837
Kind Code:
A1
Abstract:
Disclosed is an efficient field-emission light source which can uniformly emit light. An emitter electrode (11) is comprised of a plurality of wire emitters (11a), the axes of which are parallel to one another. Each wire emitter has a linear shape. An electron emission element is formed on substantially a half of the surface of each wire emitter when viewed in the axial direction. The surface of each wire emitter (11a), on which the electron emission element is formed, faces toward a phosphor layer (13), and is disposed so that the number of rotation symmetries is identical to the number of the wire emitters (11a). Thus, electrons can be uniformly emitted around the emitter electrode (11), and accordingly, light can be uniformly emitted in the phosphor layer. Furthermore, a power feed unit (12) for supporting the emitter electrode (11) is shaped so that the electric field strength is reduced in the portion of the electron emission element, near the phosphor layer (13). Thus, light is uniformly emitted in the longitudinal direction of the emitter electrode (11).
Inventors:
NISHIMURA KAZUHITO (JP)
SASAOKA HIDEKI (JP)
OOKA MASAHIRO (JP)
SASAOKA HIDEKI (JP)
OOKA MASAHIRO (JP)
Application Number:
PCT/JP2010/057882
Publication Date:
November 10, 2011
Filing Date:
May 10, 2010
Export Citation:
Assignee:
KOCHI FEL CO LTD (JP)
NISHIMURA KAZUHITO (JP)
SASAOKA HIDEKI (JP)
OOKA MASAHIRO (JP)
NISHIMURA KAZUHITO (JP)
SASAOKA HIDEKI (JP)
OOKA MASAHIRO (JP)
International Classes:
H01J63/06
Domestic Patent References:
| WO2006022352A1 | 2006-03-02 | |||
| WO2006073017A1 | 2006-07-13 |
Foreign References:
| JP2009146816A | 2009-07-02 | |||
| JP2006236721A | 2006-09-07 | |||
| JP2009164094A | 2009-07-23 |
Other References:
KAZUHITO NISHIMURA ET AL.: "Funnel-gata Denkyoku Kozo o Mochiita Denkai Denshi Hoshutsugata Kogen no Kaihatsu", NEW DIAMOND, vol. 26, no. 2, 25 April 2010 (2010-04-25), pages 18 - 23
MASAHIRO OOKA ET AL.: "Yugen Yosoho ni yoru Denkai Hoshutsugata Kogen no Kozo Kaihatsu", DAI 23 KAI DIAMOND SYMPOSIUM KOEN YOSHISHU, 18 November 2009 (2009-11-18), pages 206 - 207
MASAHIRO OOKA ET AL.: "Yugen Yosoho ni yoru Denkai Hoshutsugata Kogen no Kozo Kaihatsu", DAI 23 KAI DIAMOND SYMPOSIUM KOEN YOSHISHU, 18 November 2009 (2009-11-18), pages 206 - 207
Attorney, Agent or Firm:
KIMURA MITSURU (JP)
Mitsuru Kimura (JP)
Mitsuru Kimura (JP)
Download PDF:
Claims:
Previous Patent: ELECTRONIC CALCULATOR
Next Patent: READY-TO-USE COSMETIC COMPOSITION FOR OXIDATION DYEING KERATIN FIBERS
Next Patent: READY-TO-USE COSMETIC COMPOSITION FOR OXIDATION DYEING KERATIN FIBERS