Title:
IMAGING APPARATUS
Document Type and Number:
WIPO Patent Application WO/1999/036754
Kind Code:
A1
Abstract:
An imaging apparatus comprising an electron-bombardment multiplier which is provided with a built-in charge-transfer solid-state imaging device having a high resolution, a high sensitivity, an improved S/N ratio, and a prolonged life time, wherein as an imaging element, an electron-bombardment multiplier is used which includes a vacuum enclosure made up of an input surface plate (12), a ceramic side tube (16), and a ceramic stem (17) and containing a photocathode (13) capable of emitting photoelectrons from the opposite surface to the incident surface in response to light incidence and a back-incidence FT-CCD (11) provided with an incidence surface in the traveling path of photoelectrons emitted. The number of pixels in the vertical direction of an imaging section (11a) of the FT-CCD (11) is equal to or more than the number of output scanning lines. A negative voltage is always applied to the transfer electrode of the imaging section (11a) during the image storage period. Consequently, the dark current is suppressed, the S/N ratio is improved, the resolution is maintained, and the sensitivity is also improved.
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Inventors:
SUYAMA MOTOHIRO (JP)
EMA SHOGO (JP)
MARUNO TADASHI (JP)
EMA SHOGO (JP)
MARUNO TADASHI (JP)
Application Number:
PCT/JP1999/000134
Publication Date:
July 22, 1999
Filing Date:
January 18, 1999
Export Citation:
Assignee:
HAMAMATSU PHOTONICS KK (JP)
SUYAMA MOTOHIRO (JP)
EMA SHOGO (JP)
MARUNO TADASHI (JP)
SUYAMA MOTOHIRO (JP)
EMA SHOGO (JP)
MARUNO TADASHI (JP)
International Classes:
G01J1/42; H01J31/26; H04N5/30; H04N5/335; H04N5/341; H04N5/361; H04N5/369; H04N5/3725; H04N5/378; (IPC1-7): G01J1/42
Foreign References:
JPS6030059B2 | 1985-07-13 | |||
JPS58133748A | 1983-08-09 | |||
US4963952A | 1990-10-16 | |||
JPH10304256A | 1998-11-13 | |||
JPS6030059B2 | 1985-07-13 | |||
US4963952A | 1990-10-16 |
Other References:
See also references of EP 1048939A4
Attorney, Agent or Firm:
Koizumi, Shin (6th floor 37-4, Yushima 3-chome Bunkyo-ku Tokyo, JP)
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