发明申请
- 专利标题: LASER LIGHT SOURCE, IMAGE DISPLAY APPARATUS, AND PROCESSING APPARATUS
- 专利标题(中): 激光光源,图像显示设备和加工设备
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申请号: US12411636申请日: 2009-03-26
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公开(公告)号: US20090257463A1公开(公告)日: 2009-10-15
- 发明人: Koichi KUSUKAME , Hiroyuki FURUYA , Kiminori MIZUUCHI , Tomoya SUGITA , Akihiro MORIKAWA , Nobuyuki HORIKAWA , Kazuhisa YAMAMOTO , Shinichi KADOWAKI
- 申请人: Koichi KUSUKAME , Hiroyuki FURUYA , Kiminori MIZUUCHI , Tomoya SUGITA , Akihiro MORIKAWA , Nobuyuki HORIKAWA , Kazuhisa YAMAMOTO , Shinichi KADOWAKI
- 优先权: JP2008-086053 20080328; JP2008-096846 20080403; JP2008-152588 20080611
- 主分类号: H01S3/10
- IPC分类号: H01S3/10 ; G02B26/08
摘要:
A laser light source includes a fundamental laser generator that generates a fundamental laser light, a wavelength conversion element that is made of a ferroelectric crystal with a periodically poled structure and converts the fundamental laser light to a laser light having a different wavelength, a holding member that holds at least a part of an element surface of the wavelength conversion element that crosses a polarization direction of the periodically poled structure, and an insulation layer that is provided between the holding member and the element surface. Electric resistivity of the insulation layer is 1×108 Ω·cm or higher.