Invention Grant
US5742391A Optical type sensor for use as an optical measuring head or optical
pickup
失效
用作光学测量头或光学拾取器的光学型传感器
- Patent Title: Optical type sensor for use as an optical measuring head or optical pickup
- Patent Title (中): 用作光学测量头或光学拾取器的光学型传感器
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Application No.: US579347Application Date: 1995-12-27
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Publication No.: US5742391APublication Date: 1998-04-21
- Inventor: Yasushi Kaneda , Kou Ishizuka , Kenji Hisamoto
- Applicant: Yasushi Kaneda , Kou Ishizuka , Kenji Hisamoto
- Applicant Address: JPX Tokyo
- Assignee: Canon Kabushiki Kaisha
- Current Assignee: Canon Kabushiki Kaisha
- Current Assignee Address: JPX Tokyo
- Priority: JPX6-325130 19941227
- Main IPC: G01D5/30
- IPC: G01D5/30 ; G01B11/00 ; G01D5/36 ; G01D5/38 ; G01B9/02
Abstract:
An optical type sensor has a light emitting element, a light receiving element, at least one optical element acting on a light beam emitted from the light emitting element, in an optical path till the light beam enters the light receiving element, and a spacer member disposed to define a spacing between the light emitting element and/or the light receiving element and the at least one optical element, the spacer member having a structure for being mounted to other member.
Public/Granted literature
- US5216684A Reliable AlInGaAs/AlGaAs strained-layer diode lasers Public/Granted day:1993-06-01
Information query
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