GB2342502B - Photoelectric sensor having a light guide built-in - Google Patents

Photoelectric sensor having a light guide built-in

Info

Publication number
GB2342502B
GB2342502B GB9928699A GB9928699A GB2342502B GB 2342502 B GB2342502 B GB 2342502B GB 9928699 A GB9928699 A GB 9928699A GB 9928699 A GB9928699 A GB 9928699A GB 2342502 B GB2342502 B GB 2342502B
Authority
GB
United Kingdom
Prior art keywords
light guide
photoelectric sensor
guide built
built
photoelectric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9928699A
Other versions
GB2342502A (en
GB9928699D0 (en
Inventor
Mayumi Masui
Yoshiki Shibuya
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP13084095A external-priority patent/JPH08330608A/en
Application filed by Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Publication of GB9928699D0 publication Critical patent/GB9928699D0/en
Publication of GB2342502A publication Critical patent/GB2342502A/en
Application granted granted Critical
Publication of GB2342502B publication Critical patent/GB2342502B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/06—Restricting the angle of incident light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0204—Compact construction
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0214—Constructional arrangements for removing stray light
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0271—Housings; Attachments or accessories for photometers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
GB9928699A 1995-05-29 1996-05-29 Photoelectric sensor having a light guide built-in Expired - Fee Related GB2342502B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP13084095A JPH08330608A (en) 1995-05-29 1995-05-29 Light reception sensor and light reception optical sensor
GB9611161A GB2303964B (en) 1995-05-29 1996-05-29 Photoelectric sensor having a light guide built-in

Publications (3)

Publication Number Publication Date
GB9928699D0 GB9928699D0 (en) 2000-02-02
GB2342502A GB2342502A (en) 2000-04-12
GB2342502B true GB2342502B (en) 2000-07-26

Family

ID=26309408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9928699A Expired - Fee Related GB2342502B (en) 1995-05-29 1996-05-29 Photoelectric sensor having a light guide built-in

Country Status (1)

Country Link
GB (1) GB2342502B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8620523B2 (en) 2011-06-24 2013-12-31 Gentex Corporation Rearview assembly with multiple ambient light sensors
US9207116B2 (en) 2013-02-12 2015-12-08 Gentex Corporation Light sensor
US9224889B2 (en) 2011-08-05 2015-12-29 Gentex Corporation Optical assembly for a light sensor, light sensor assembly using the optical assembly, and vehicle rearview assembly using the light sensor assembly

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6679608B2 (en) * 1999-01-25 2004-01-20 Gentex Corporation Sensor device having an integral anamorphic lens
TWI548846B (en) * 2008-12-24 2016-09-11 Panasonic Corp Refrigerator
US9870753B2 (en) 2013-02-12 2018-01-16 Gentex Corporation Light sensor having partially opaque optic

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933729A (en) * 1985-11-21 1990-06-12 Nec Corporation Photointerrupter
EP0493051A1 (en) * 1990-12-19 1992-07-01 Sharp Kabushiki Kaisha Reflective type photo-interrupter
JPH0794775A (en) * 1993-09-20 1995-04-07 Rohm Co Ltd Structure of photointerrupter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4933729A (en) * 1985-11-21 1990-06-12 Nec Corporation Photointerrupter
EP0493051A1 (en) * 1990-12-19 1992-07-01 Sharp Kabushiki Kaisha Reflective type photo-interrupter
JPH0794775A (en) * 1993-09-20 1995-04-07 Rohm Co Ltd Structure of photointerrupter
US5436472A (en) * 1993-09-20 1995-07-25 Rohm Co., Ltd. Photointerrupter

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8620523B2 (en) 2011-06-24 2013-12-31 Gentex Corporation Rearview assembly with multiple ambient light sensors
US9224889B2 (en) 2011-08-05 2015-12-29 Gentex Corporation Optical assembly for a light sensor, light sensor assembly using the optical assembly, and vehicle rearview assembly using the light sensor assembly
US9207116B2 (en) 2013-02-12 2015-12-08 Gentex Corporation Light sensor

Also Published As

Publication number Publication date
GB2342502A (en) 2000-04-12
GB9928699D0 (en) 2000-02-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20030529