JPS5338225A - Mark sensor - Google Patents

Mark sensor

Info

Publication number
JPS5338225A
JPS5338225A JP11260776A JP11260776A JPS5338225A JP S5338225 A JPS5338225 A JP S5338225A JP 11260776 A JP11260776 A JP 11260776A JP 11260776 A JP11260776 A JP 11260776A JP S5338225 A JPS5338225 A JP S5338225A
Authority
JP
Japan
Prior art keywords
mark sensor
light
arranging
card
reduction
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.)
Pending
Application number
JP11260776A
Other languages
Japanese (ja)
Inventor
Fumio Asano
Chuji Ishikawa
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP11260776A priority Critical patent/JPS5338225A/en
Publication of JPS5338225A publication Critical patent/JPS5338225A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the reduction of the quantity of light at the center of light flux irradiated upon a card by arranging a photo detector and light emitting element properly.
COPYRIGHT: (C)1978,JPO&Japio
JP11260776A 1976-09-20 1976-09-20 Mark sensor Pending JPS5338225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11260776A JPS5338225A (en) 1976-09-20 1976-09-20 Mark sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11260776A JPS5338225A (en) 1976-09-20 1976-09-20 Mark sensor

Publications (1)

Publication Number Publication Date
JPS5338225A true JPS5338225A (en) 1978-04-08

Family

ID=14590954

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11260776A Pending JPS5338225A (en) 1976-09-20 1976-09-20 Mark sensor

Country Status (1)

Country Link
JP (1) JPS5338225A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829072A (en) * 1981-08-13 1983-02-21 Tokyo Keiki Co Ltd Optical reading head

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5829072A (en) * 1981-08-13 1983-02-21 Tokyo Keiki Co Ltd Optical reading head

Similar Documents

Publication Publication Date Title
JPS5396674A (en) Photo mask
JPS539528A (en) Color photographic light sensitive material
JPS5226191A (en) Package of photo-semiconductor element
JPS5426722A (en) Film movement detector for camera
JPS539491A (en) Photo semiconductor device
JPS52123824A (en) Solid pikup element
JPS53116792A (en) Semiconductor light emitting-photo detecting composite device
JPS5338225A (en) Mark sensor
JPS52146235A (en) Color photographic light sensitive material
JPS5295224A (en) Flash illumination means
JPS5349974A (en) Semiconductor laser device
JPS51134126A (en) Light measure device for the camera
JPS5313765A (en) Device for confirming feeding of article
JPS5375768A (en) Size check pattern
JPS5361298A (en) Photoelectric smoke detector
JPS52140351A (en) Time series hologram photographing device
JPS524229A (en) Reader printer
JPS5220032A (en) Electrophotographic device
JPS5330888A (en) Photo detector
JPS5428114A (en) Magnetic tape
JPS52149172A (en) Detector for photosensitive substance
JPS5319793A (en) Indicator light
JPS5349976A (en) Semiconductor light emission device
JPS5343416A (en) Image sensor
JPS5294776A (en) Illuminometer for photo resist