JPS62187319A - Light beam scanning device - Google Patents

Light beam scanning device

Info

Publication number
JPS62187319A
JPS62187319A JP61029741A JP2974186A JPS62187319A JP S62187319 A JPS62187319 A JP S62187319A JP 61029741 A JP61029741 A JP 61029741A JP 2974186 A JP2974186 A JP 2974186A JP S62187319 A JPS62187319 A JP S62187319A
Authority
JP
Japan
Prior art keywords
scanning
light
lens
diameter
optical
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
JP61029741A
Other languages
Japanese (ja)
Inventor
Chiaki Goto
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 JP61029741A priority Critical patent/JPS62187319A/en
Publication of JPS62187319A publication Critical patent/JPS62187319A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make the beam diameter of a light beam nearly constant on a scanning surface by arranging the scanning surface at a specific position in front of the convergence position of the light beam wherever a scanning lens is in a subscanning direction.
CONSTITUTION: The light beam from a laser light source 11 is incident on the scanning optical system consisting of the scanning lens 13 and a reflecting mirror 14 to make a subscan on the scanning surface 16 by the movement of the scanning optical system 15 and also makes a main scan by the rotation of the scanning surface 16. The distance between the scanning lens 13 and scanning surface 16 is so specified that wherever the scanning optical system 15 is in the subscanning direction, the scanning surface 16 is before the position where the light beam forms an image through the scanning lens 13 and the diameter of the light beam on the scanning surface is nearly uniform at any time. Thus the spot diameter of the light beam at the scanning position is made nearly uniform without using a collimator lens nor beam expander.
COPYRIGHT: (C)1987,JPO&Japio
JP61029741A 1986-02-13 1986-02-13 Light beam scanning device Pending JPS62187319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61029741A JPS62187319A (en) 1986-02-13 1986-02-13 Light beam scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61029741A JPS62187319A (en) 1986-02-13 1986-02-13 Light beam scanning device

Publications (1)

Publication Number Publication Date
JPS62187319A true JPS62187319A (en) 1987-08-15

Family

ID=12284526

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61029741A Pending JPS62187319A (en) 1986-02-13 1986-02-13 Light beam scanning device

Country Status (1)

Country Link
JP (1) JPS62187319A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996032662A3 (en) * 1995-04-11 1996-11-14 Ici Plc Apparatus and method for scanning a laser beam

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996032662A3 (en) * 1995-04-11 1996-11-14 Ici Plc Apparatus and method for scanning a laser beam

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