Title:
電子管モジュール及び光学装置
Document Type and Number:
Japanese Patent JP7097313
Kind Code:
B2
Abstract:
An electron tube module includes an electron tube and a casing. The electron tube includes a vacuum container with a light transmitting substrate, a photocathode provided in an inner surface of the light transmitting substrate, an anode, and a prism. The prism includes a first surface bonded to an outer surface of the light transmitting substrate, a second surface inclined with respect to the first surface, and a third surface which further reflects light incident to the photocathode through the prism and the light transmitting substrate and reflected at an interface between the photocathode and a vacuum space so that the light is incident to the photocathode again. The casing includes a ceiling wall provided with an opening. The second surface is parallel to the ceiling wall. At least a part of the second surface is exposed to outside through the opening.
Inventors:
Sugiura Ginji
Yasumasa Matsuoka
Shunsuke Kobayashi
Yasumasa Matsuoka
Shunsuke Kobayashi
Application Number:
JP2019020471A
Publication Date:
July 07, 2022
Filing Date:
February 07, 2019
Export Citation:
Assignee:
Hamamatsu Photonics Co., Ltd.
International Classes:
H01J43/28; H01J43/06
Domestic Patent References:
| JP374462U | ||||
| JP200046734A |
Other References:
W. D. Gunter, G. R. Grant, and S. A. Shaw,Optical Devices to Increase Photocathode Quantum Efficiency,Applied Optics,1970,volume 9, issue 2,pages 251-257
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kenichi Shibayama
Yoshiki Kuroki
Kenichi Shibayama
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