Invention Grant
US08941903B2 Laser emitting apparatus using a basic hologram and a focusing hologram
有权
使用基本全息图和聚焦全息图的激光发射设备
- Patent Title: Laser emitting apparatus using a basic hologram and a focusing hologram
- Patent Title (中): 使用基本全息图和聚焦全息图的激光发射设备
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Application No.: US13918225Application Date: 2013-06-14
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Publication No.: US08941903B2Publication Date: 2015-01-27
- Inventor: Yuu Takiguchi , Naoya Matsumoto , Norihiro Fukuchi , Takashi Inoue , Tamiki Takemori , Naohisa Mukozaka
- Applicant: Hamamatsu Photonics K.K.
- Applicant Address: JP Hamamatsu-shi, Shizuoka
- Assignee: Hamamatsu Photonics K.K.
- Current Assignee: Hamamatsu Photonics K.K.
- Current Assignee Address: JP Hamamatsu-shi, Shizuoka
- Agency: Drinker Biddle & Reath LLP
- Priority: JPP2008-256629 20081001
- Main IPC: G03H1/08
- IPC: G03H1/08 ; H01S3/00 ; B23K26/00 ; B23K26/06 ; G02B5/32 ; G03H1/00 ; G02B3/08 ; G02B13/22 ; G03H1/22

Abstract:
A laser processing apparatus including a laser light source, a phase modulation type spatial light modulator, a driving unit, a control unit, and an imaging optical system. A storage unit that is included in the driving unit stores a plurality of basic holograms corresponding to a plurality of basic processing patterns and a focusing hologram corresponding to a Fresnel lens pattern. The control unit arranges in parallel two or more basic holograms selected from the plurality of basic holograms stored in the storage unit, overlaps the focusing hologram with each of the basic holograms arranged in parallel to form the whole hologram, and presents the formed whole hologram to the spatial light modulator.
Public/Granted literature
- US20130286453A1 LASER EMITTING APPARATUS USING A BASIC HOLOGRAM AND A FOCUSING HOLOGRAM Public/Granted day:2013-10-31
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