JPH0328789A - Photoelectric sensor - Google Patents

Photoelectric sensor

Info

Publication number
JPH0328789A
JPH0328789A JP16344789A JP16344789A JPH0328789A JP H0328789 A JPH0328789 A JP H0328789A JP 16344789 A JP16344789 A JP 16344789A JP 16344789 A JP16344789 A JP 16344789A JP H0328789 A JPH0328789 A JP H0328789A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
part
reflection
1st
condensing lens
optical body
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.)
Granted
Application number
JP16344789A
Other versions
JP2854605B2 (en )
Inventor
Masami Yamakawa
Original Assignee
I Sensu:Kk
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

Links

Abstract

PURPOSE: To improve assembling workability by providing a 1st concave part whose diameter is about one third the front surface of an optical body, a condensing lens which form a 2nd concave part opposed to the 1st concave part, 1st and 2nd reflection parts and a piolot lamp condensing lens, etc.
CONSTITUTION: Signal light made incident from the front side of the optical body 1 through a protector 3 is reflected on the 1st reflection part 1c to reach the 2nd reflection part 41a, where it is reflected with the aid of the second reflection, and it passes through the condensing lens part 51 to be condensed on the position of a photoelectric conversion element 4a, converted into an electrical signal and outputted. Since the change of an incident light quantity is immediately changed into the electrical signal, a substance in an optical path in the front surface direction of the protector 3 or the optical body 1 is accurately detected. Light from a light emitting diode functioning as an action pilot lamp 4b is radiated in the front surface direction of the optical body 1 through the projecting part 1b functioning as the pilot lamp condensing lens part. An electromagnetic radiant noise from the outside is mostly reflected by metallic films formed on the reflection parts 1c and 41a and the accurate action of electronic parts 4c on a circuit substrate 4 is secoured.
COPYRIGHT: (C)1991,JPO&Japio
JP16344789A 1989-06-26 1989-06-26 Photoelectric sensor Expired - Lifetime JP2854605B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16344789A JP2854605B2 (en) 1989-06-26 1989-06-26 Photoelectric sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16344789A JP2854605B2 (en) 1989-06-26 1989-06-26 Photoelectric sensor

Publications (2)

Publication Number Publication Date
JPH0328789A true true JPH0328789A (en) 1991-02-06
JP2854605B2 JP2854605B2 (en) 1999-02-03

Family

ID=15774056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16344789A Expired - Lifetime JP2854605B2 (en) 1989-06-26 1989-06-26 Photoelectric sensor

Country Status (1)

Country Link
JP (1) JP2854605B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312948A (en) * 1992-05-06 1993-11-26 Sharp Corp Range finder sensor
US6667140B2 (en) 2000-09-01 2003-12-23 Canon Kabushiki Kaisha Toner and image forming method
US6855471B2 (en) 2002-01-15 2005-02-15 Canon Kabushiki Kaisha Toner and image-forming method
JP2010205425A (en) * 2009-02-27 2010-09-16 Panasonic Electric Works Co Ltd Luminaire
CN102754007A (en) * 2009-12-18 2012-10-24 威泰克公司 Temperature control means

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312948A (en) * 1992-05-06 1993-11-26 Sharp Corp Range finder sensor
US6667140B2 (en) 2000-09-01 2003-12-23 Canon Kabushiki Kaisha Toner and image forming method
US6855471B2 (en) 2002-01-15 2005-02-15 Canon Kabushiki Kaisha Toner and image-forming method
JP2010205425A (en) * 2009-02-27 2010-09-16 Panasonic Electric Works Co Ltd Luminaire
CN102754007A (en) * 2009-12-18 2012-10-24 威泰克公司 Temperature control means
US20120307862A1 (en) * 2009-12-18 2012-12-06 Wintech Temperature control device
JP2013514529A (en) * 2009-12-18 2013-04-25 ウィンテック Temperature control device
US9261409B2 (en) 2009-12-18 2016-02-16 Wintech Temperature Control Device

Also Published As

Publication number Publication date Type
JP2854605B2 (en) 1999-02-03 grant

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