TW200642439A - Linear lighting device and image access device using thereof - Google Patents

Linear lighting device and image access device using thereof

Info

Publication number
TW200642439A
TW200642439A TW095104758A TW95104758A TW200642439A TW 200642439 A TW200642439 A TW 200642439A TW 095104758 A TW095104758 A TW 095104758A TW 95104758 A TW95104758 A TW 95104758A TW 200642439 A TW200642439 A TW 200642439A
Authority
TW
Taiwan
Prior art keywords
light
longitudinal direction
linear lighting
guiding body
outputting part
Prior art date
Application number
TW095104758A
Other languages
Chinese (zh)
Other versions
TWI311881B (en
Inventor
Masayuki Katsumata
Masami Tabata
Original Assignee
Canon Components Kk
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 Components Kk filed Critical Canon Components Kk
Publication of TW200642439A publication Critical patent/TW200642439A/en
Application granted granted Critical
Publication of TWI311881B publication Critical patent/TWI311881B/zh

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  • Facsimile Heads (AREA)

Abstract

To increase lighting intensity of illumination emitting from a linear lighting system and to provide a linear lighting system with more uniformed illumination distribution along the longitudinal direction of a light guiding body. A linear lighting system has a light guide having LEDs located on a light entrance on one end of a light guiding body made with a transmissive and longitudinal member for guiding incoming light from its entrance in longitudinal direction of the light guiding body, and a light outputting part for irradiating the guided light along with the longitudinal direction. A wedge shaped projection and a projection with planar leading end are formed at mutually facing positions for controlling light running from the light guide towards the light outputting part between the light guide and the light outputting part, reduction of light volume irradiated from the light outputting part is controlled with the projections, and illumination distribution are decreased in the longitudinal direction of the light guiding body.
TW095104758A 2005-03-10 2006-02-13 Linear lighting device and image access device using thereof TW200642439A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005067140 2005-03-10

Publications (2)

Publication Number Publication Date
TW200642439A true TW200642439A (en) 2006-12-01
TWI311881B TWI311881B (en) 2009-07-01

Family

ID=36993861

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095104758A TW200642439A (en) 2005-03-10 2006-02-13 Linear lighting device and image access device using thereof

Country Status (2)

Country Link
CN (1) CN1831423B (en)
TW (1) TW200642439A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI425396B (en) * 2009-11-25 2014-02-01 Coretronic Corp Optical touch apparatus and optical touch display apparatus

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5471108B2 (en) * 2009-07-17 2014-04-16 富士ゼロックス株式会社 Image reading device and linear light source device
CN102034295B (en) * 2009-08-07 2014-03-26 威海华菱光电有限公司 Contact type image sensor
TWI454179B (en) * 2009-08-11 2014-09-21 Canon Components Kk A white light emitting device for an image reading device, and a linear lighting device using the same
JP5836723B2 (en) 2011-09-16 2015-12-24 キヤノン株式会社 Light guide, illumination device, and image reading device
EP2935986B1 (en) * 2012-12-18 2021-09-29 Signify Holding B.V. Lighting strip, lighting system, panel support element and modular panel system
US9338322B2 (en) 2013-06-11 2016-05-10 Canon Kabushiki Kaisha Image reading device and image forming apparatus including an illuminating unit and an aligning portion for positioning an original
US10412255B2 (en) * 2016-08-30 2019-09-10 Canon Finetech Nisca Inc. Lighting apparatus and apparatus for reading images
CN108802890B (en) * 2018-04-18 2020-10-20 上海斐讯数据通信技术有限公司 Light guide structure

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1098581A (en) * 1996-08-02 1998-04-14 Canon Inc Image reader and image read system
JP2000021221A (en) * 1998-07-06 2000-01-21 Brother Ind Ltd Linear lighting system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI425396B (en) * 2009-11-25 2014-02-01 Coretronic Corp Optical touch apparatus and optical touch display apparatus
US8884923B2 (en) 2009-11-25 2014-11-11 Coretronic Corporation Optical touch apparatus having a light guide with scattering particles

Also Published As

Publication number Publication date
CN1831423A (en) 2006-09-13
CN1831423B (en) 2010-05-12
TWI311881B (en) 2009-07-01

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees