JPS6413515A - Synchronizing signal generating device - Google Patents

Synchronizing signal generating device

Info

Publication number
JPS6413515A
JPS6413515A JP62170815A JP17081587A JPS6413515A JP S6413515 A JPS6413515 A JP S6413515A JP 62170815 A JP62170815 A JP 62170815A JP 17081587 A JP17081587 A JP 17081587A JP S6413515 A JPS6413515 A JP S6413515A
Authority
JP
Japan
Prior art keywords
cylindrical surface
grid
convergence
convergence lens
face
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
JP62170815A
Other languages
Japanese (ja)
Inventor
Shuji Ono
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP62170815A priority Critical patent/JPS6413515A/en
Publication of JPS6413515A publication Critical patent/JPS6413515A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimile Transmission Control (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Facsimile Scanning Arrangements (AREA)

Abstract

PURPOSE:To contrive the improvement of the converging efficiency by providing a cylindrical grid on the cylindrical surface of a convergence lens for converging a synchronizing light beam and allowing it to be made incident on a photodetector. CONSTITUTION:A grid 40 has alternately a light transmission part and a light non-transmission part in the deflecting direction of a synchronizing light beam 22, arranged on the periphery centering around a deflection point 34a of a reverse side mirror 34, and forms a cylindrical surface 42a of a range exceeding a deflection angle of an oscillating mirror 26. The grid 40 is formed on the cylindrical surface 42a of a convergence lens 42. In such a way, the convergence lens can be formed by two pieces of lenses of the same shape whose one face is the cylindrical surface 42a, and the other face is aspherical, therefore, the convergence efficiency can be improved.
JP62170815A 1987-07-08 1987-07-08 Synchronizing signal generating device Pending JPS6413515A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170815A JPS6413515A (en) 1987-07-08 1987-07-08 Synchronizing signal generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62170815A JPS6413515A (en) 1987-07-08 1987-07-08 Synchronizing signal generating device

Publications (1)

Publication Number Publication Date
JPS6413515A true JPS6413515A (en) 1989-01-18

Family

ID=15911846

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170815A Pending JPS6413515A (en) 1987-07-08 1987-07-08 Synchronizing signal generating device

Country Status (1)

Country Link
JP (1) JPS6413515A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022130779A1 (en) * 2020-12-16 2022-06-23 ソニーグループ株式会社 Optical module and ranging device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022130779A1 (en) * 2020-12-16 2022-06-23 ソニーグループ株式会社 Optical module and ranging device

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