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JPS6448017A - Optical reader - Google Patents

Optical reader

Info

Publication number
JPS6448017A
JPS6448017A JP62205429A JP20542987A JPS6448017A JP S6448017 A JPS6448017 A JP S6448017A JP 62205429 A JP62205429 A JP 62205429A JP 20542987 A JP20542987 A JP 20542987A JP S6448017 A JPS6448017 A JP S6448017A
Authority
JP
Japan
Prior art keywords
mirror
window
mirrors
passes
light beam
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
JP62205429A
Other languages
Japanese (ja)
Other versions
JPH0823629B2 (en
Inventor
Hiroshi Watanuki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62205429A priority Critical patent/JPH0823629B2/en
Publication of JPS6448017A publication Critical patent/JPS6448017A/en
Publication of JPH0823629B2 publication Critical patent/JPH0823629B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Mechanical Optical Scanning Systems (AREA)

Abstract

PURPOSE:To drastically reduce the number of mirrors and to enhance the thinning and to contrive the cost down of a reader by reflecting a light beam every deflection angle, projection it from a reading window and drawing a desirable scanning pattern in mirror group. CONSTITUTION:The laser light 7 from a light source 1 passes through the hole 81 of a lens 8 and is reflected on one surface of plural reflecting surfaces 31 of a polygonal mirror 30, whose tilt angle are different. And it passes through the mirror group 31 and is projected from a reading window 21, then the barcode of a commodity 24 which moves on the window 21 is read. A part of the signal light 25 passes through the window 21 and returns to the polygonal mirror 30 on an opposite path, then it is detected by a detecting unit 28. The mirror group 32 is constituted of the mirrors 32a-32c which makes horizontal, vertical and oblique scanning lines drawn and the diffraction angle of the light beam by the polygon mirror 30 can be optionally set in a horizontal or a nearly horizontal direction, and the light beam can be directly projected from a reading window 21 in a desirable scanning pattern only with the reflection of one mirror. The number of mirrors is drastically reduced and they are arranged in long sideways, so that the thinning and the cost down of the reader can be attained.
JP62205429A 1987-08-19 1987-08-19 Optical reader Expired - Fee Related JPH0823629B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62205429A JPH0823629B2 (en) 1987-08-19 1987-08-19 Optical reader

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62205429A JPH0823629B2 (en) 1987-08-19 1987-08-19 Optical reader

Publications (2)

Publication Number Publication Date
JPS6448017A true JPS6448017A (en) 1989-02-22
JPH0823629B2 JPH0823629B2 (en) 1996-03-06

Family

ID=16506710

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62205429A Expired - Fee Related JPH0823629B2 (en) 1987-08-19 1987-08-19 Optical reader

Country Status (1)

Country Link
JP (1) JPH0823629B2 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04211881A (en) * 1990-05-23 1992-08-03 Tokyo Electric Co Ltd Stationary barcode reader
JPH04213177A (en) * 1990-11-22 1992-08-04 Fuji Electric Co Ltd Bar code reader
US5192857A (en) * 1990-09-28 1993-03-09 Ncr Corporation Compact optical scanner rotatable between horizontal and vertical positions
US5216232A (en) * 1990-09-10 1993-06-01 Metrologic Instruments, Inc. Projection laser scanner producing a narrow scan volume
US5286961A (en) * 1990-05-23 1994-02-15 Tokyo Electric Co., Ltd. Bar code reader producing two groups of vertical scan lines and two groups of inclined scan lines on a plane normal to the read window
US5475208A (en) * 1994-01-27 1995-12-12 Symbol Technologies, Inc. Barcode scanner having a dead zone reducing system and a multifocal length collector
EP0676712A3 (en) * 1994-03-14 1996-07-17 Opticon Sensors Europ Laser scanners.
US6098885A (en) * 1990-09-10 2000-08-08 Metrologic Instruments Countertop projection laser scanning system for omnidirectional scanning volume projected above a countertop surface of code symbols within a narrowly-confined scanning
US6286760B1 (en) 1994-08-17 2001-09-11 Metrologic Instruments, Inc. Automatic hand-supportable laser projection scanner for omni-directional reading of bar code symbols within a narrowly confined scanning volume
US6299067B1 (en) 1993-11-24 2001-10-09 Metrologic Instruments, Inc. Bar code scanner with intuitive head aiming and collimated scan volume
US6466359B2 (en) 2000-04-21 2002-10-15 Fuji Photo Film Co., Ltd. Multi-beam exposure apparatus
US6758402B1 (en) 1994-08-17 2004-07-06 Metrologic Instruments, Inc. Bioptical holographic laser scanning system
US6860427B1 (en) 1993-11-24 2005-03-01 Metrologic Instruments, Inc. Automatic optical projection scanner for omni-directional reading of bar code symbols within a confined scanning volume
US7051922B2 (en) 1994-08-17 2006-05-30 Metrologic Instruments, Inc. Compact bioptical laser scanning system

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5286961A (en) * 1990-05-23 1994-02-15 Tokyo Electric Co., Ltd. Bar code reader producing two groups of vertical scan lines and two groups of inclined scan lines on a plane normal to the read window
JPH04211881A (en) * 1990-05-23 1992-08-03 Tokyo Electric Co Ltd Stationary barcode reader
US6098885A (en) * 1990-09-10 2000-08-08 Metrologic Instruments Countertop projection laser scanning system for omnidirectional scanning volume projected above a countertop surface of code symbols within a narrowly-confined scanning
US5637852A (en) * 1990-09-10 1997-06-10 Metrologic Instruments, Inc. Counter-top projection laser scanner for omni-directional scanning of code symbols within a narrowly confined scanning volume, while preventing unintentional scanning of code symbols of nearby objects
US5216232A (en) * 1990-09-10 1993-06-01 Metrologic Instruments, Inc. Projection laser scanner producing a narrow scan volume
US6412696B1 (en) 1990-09-10 2002-07-02 Metrologic Instruments Inc. Countertop projection laser scanning system for omnidirectional scanning of code symbols within a narrowly-confined scanning volume projected above a countertop surface
US5192857A (en) * 1990-09-28 1993-03-09 Ncr Corporation Compact optical scanner rotatable between horizontal and vertical positions
JPH04213177A (en) * 1990-11-22 1992-08-04 Fuji Electric Co Ltd Bar code reader
US6860427B1 (en) 1993-11-24 2005-03-01 Metrologic Instruments, Inc. Automatic optical projection scanner for omni-directional reading of bar code symbols within a confined scanning volume
US6299067B1 (en) 1993-11-24 2001-10-09 Metrologic Instruments, Inc. Bar code scanner with intuitive head aiming and collimated scan volume
US5475208A (en) * 1994-01-27 1995-12-12 Symbol Technologies, Inc. Barcode scanner having a dead zone reducing system and a multifocal length collector
EP0676712A3 (en) * 1994-03-14 1996-07-17 Opticon Sensors Europ Laser scanners.
US6286760B1 (en) 1994-08-17 2001-09-11 Metrologic Instruments, Inc. Automatic hand-supportable laser projection scanner for omni-directional reading of bar code symbols within a narrowly confined scanning volume
US6758402B1 (en) 1994-08-17 2004-07-06 Metrologic Instruments, Inc. Bioptical holographic laser scanning system
US6991167B2 (en) 1994-08-17 2006-01-31 Metrologic Instruments, Inc. Bioptical laser scanning system providing 360° of omnidirectional bar code symbol scanning coverage at a point of sale (POS) station
US7051922B2 (en) 1994-08-17 2006-05-30 Metrologic Instruments, Inc. Compact bioptical laser scanning system
US6466359B2 (en) 2000-04-21 2002-10-15 Fuji Photo Film Co., Ltd. Multi-beam exposure apparatus

Also Published As

Publication number Publication date
JPH0823629B2 (en) 1996-03-06

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Legal Events

Date Code Title Description
R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees