Title:
LIGHT PROJECTING DEVICE
Document Type and Number:
WIPO Patent Application WO/1992/016011
Kind Code:
A1
Abstract:
A light projecting device in which cathode luminescence of a high luminance can occur even when current of a high current density is applied. In this device, an electron emission material (2), which is coated with a layer (14) capable of emitting secondary electrons, is formed on a base (1) via an insulation base (3). At the opposed position to the electron emission material (2), provided is a fluorescent material layer (8), which a secondary electron beam (18) emitted from the layer (14) strikes.
Inventors:
UEHARA MASAMITSU (JP)
Application Number:
PCT/JP1992/000214
Publication Date:
September 17, 1992
Filing Date:
February 27, 1992
Export Citation:
Assignee:
SEIKO EPSON CORP (JP)
International Classes:
H01J29/08; H01J31/15; H01J63/06; (IPC1-7): H01J1/14; H01J63/06
Foreign References:
| JPS647754U | 1989-01-17 | |||
| JPS297060B1 | ||||
| JPS60100360A | 1985-06-04 | |||
| JPS60100361A | 1985-06-04 | |||
| JPH02267842A | 1990-11-01 |
Other References:
See also references of EP 0526663A4
Attorney, Agent or Firm:
Sato, Kazuo (Room 323 Fuji Bldg., 2-3, Marunouchi 3-chom, Chiyoda-ku Tokyo 100, JP)
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