Title:
電子銃、電子発生方法、及び偏光制御素子
Document Type and Number:
Japanese Patent JP5026858
Kind Code:
B2
Abstract:
To provide an electron gun capable of generating an electron gun of high quality stably, to provide an electron generating method, and to provide an element whose polarization state can be controlled desirably.
The electron gun has a laser beam source 11, a polarization conversion element 15 to give a phase difference corresponding to an incident position to laser beam from the laser beam source 11, a condensing lens 18 of the laser beam incident via the polarization conversion element 15 from the laser beam source 11, and a photo cathode 21 into which the laser beam condensed by the lens 18 is made incident.
COPYRIGHT: (C)2009,JPO&INPIT
Inventors:
Hiromitsu Tomizawa
Minoru Kobayashi
Minoru Kobayashi
Application Number:
JP2007133183A
Publication Date:
September 19, 2012
Filing Date:
May 18, 2007
Export Citation:
Assignee:
Nano Photon Co., Ltd.
High Brightness Science Research Center
High Brightness Science Research Center
International Classes:
H01J37/075; G02F1/03; G02F1/09; H01J3/02
Domestic Patent References:
JP1071045A | ||||
JP2006313273A | ||||
JP2004093280A | ||||
JP2006048807A | ||||
JP2001143648A | ||||
JP2003506828A | ||||
JP10125268A | ||||
JP11224631A | ||||
JP2002289127A |
Attorney, Agent or Firm:
Ken Ieiri