JPS5612662A - Scanner of imaging lens - Google Patents

Scanner of imaging lens

Info

Publication number
JPS5612662A
JPS5612662A JP8814579A JP8814579A JPS5612662A JP S5612662 A JPS5612662 A JP S5612662A JP 8814579 A JP8814579 A JP 8814579A JP 8814579 A JP8814579 A JP 8814579A JP S5612662 A JPS5612662 A JP S5612662A
Authority
JP
Japan
Prior art keywords
guiding
center
scanner
straight line
backlash
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
JP8814579A
Other languages
Japanese (ja)
Inventor
Takashi Yokota
Yoshiaki Kamimoto
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 JP8814579A priority Critical patent/JPS5612662A/en
Publication of JPS5612662A publication Critical patent/JPS5612662A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Systems Of Projection Type Copiers (AREA)

Abstract

PURPOSE: To provide a scanner which does not affect imaging performance even if some backlash occurs in guiding members by aligning the point of the imaging lens of the scanner to move the lens and the guiding center of the guiding member and the working center of a drive unit.
CONSTITUTION: A scanner is so constituted that the working center of the guiding center driving unit of guiding rods 6 comes on the same straight line P and an imaging lens 4 is so dispoed that the principal point H of the imaging lens aligns onto this straight line, In this case, if any backlash occurs in this guiding system, the guiding center of the guiding rods 6 becomes the turning center of said backlash. The straight line P comes on the axial center of the guiding rods 6 and becomes the center of the axial center of the guiding rods 6 and becomes the center of the two guiding rods 6. A driving wire 8 is fixed onto the above-mentioned straight line P; hence, the backlash of the guiding system is minimized. Even if some backlash occurs in the guiding system of such scanner, the centerline of the luminous flux does not deviate and this makes imaging performance good.
COPYRIGHT: (C)1981,JPO&Japio
JP8814579A 1979-07-13 1979-07-13 Scanner of imaging lens Pending JPS5612662A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8814579A JPS5612662A (en) 1979-07-13 1979-07-13 Scanner of imaging lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8814579A JPS5612662A (en) 1979-07-13 1979-07-13 Scanner of imaging lens

Publications (1)

Publication Number Publication Date
JPS5612662A true JPS5612662A (en) 1981-02-07

Family

ID=13934759

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8814579A Pending JPS5612662A (en) 1979-07-13 1979-07-13 Scanner of imaging lens

Country Status (1)

Country Link
JP (1) JPS5612662A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869927A (en) * 1981-10-21 1983-04-26 Nippon Sharyo Seizo Kaisha Ltd Method and device for housing leader of pile driver
JPS58156965A (en) * 1982-03-11 1983-09-19 Minolta Camera Co Ltd Optical scanning device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5869927A (en) * 1981-10-21 1983-04-26 Nippon Sharyo Seizo Kaisha Ltd Method and device for housing leader of pile driver
JPH0216411B2 (en) * 1981-10-21 1990-04-17 Nippon Sharyo Seizo Kk
JPS58156965A (en) * 1982-03-11 1983-09-19 Minolta Camera Co Ltd Optical scanning device

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