JPS53147552A - Spot light state detector - Google Patents

Spot light state detector

Info

Publication number
JPS53147552A
JPS53147552A JP6181077A JP6181077A JPS53147552A JP S53147552 A JPS53147552 A JP S53147552A JP 6181077 A JP6181077 A JP 6181077A JP 6181077 A JP6181077 A JP 6181077A JP S53147552 A JPS53147552 A JP S53147552A
Authority
JP
Japan
Prior art keywords
spot light
state detector
light state
spot
directions
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
JP6181077A
Other languages
Japanese (ja)
Other versions
JPS6148083B2 (en
Inventor
Naoto Kawamura
Katsumi Masaki
Koichi Sakugi
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP6181077A priority Critical patent/JPS53147552A/en
Publication of JPS53147552A publication Critical patent/JPS53147552A/en
Publication of JPS6148083B2 publication Critical patent/JPS6148083B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices By Optical Means (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE: To detect the state along the two directions of a spot by providing a plurality of photo detectors along intersecting directions with respect to the relative moving directions of the spot.
COPYRIGHT: (C)1978,JPO&Japio
JP6181077A 1977-05-27 1977-05-27 Spot light state detector Granted JPS53147552A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6181077A JPS53147552A (en) 1977-05-27 1977-05-27 Spot light state detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6181077A JPS53147552A (en) 1977-05-27 1977-05-27 Spot light state detector

Publications (2)

Publication Number Publication Date
JPS53147552A true JPS53147552A (en) 1978-12-22
JPS6148083B2 JPS6148083B2 (en) 1986-10-22

Family

ID=13181806

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6181077A Granted JPS53147552A (en) 1977-05-27 1977-05-27 Spot light state detector

Country Status (1)

Country Link
JP (1) JPS53147552A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0422994Y2 (en) * 1984-10-31 1992-05-27

Also Published As

Publication number Publication date
JPS6148083B2 (en) 1986-10-22

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