LIGHT IRRADIATING DEVICE, IMAGE READING DEVICE, AND IMAGE FORMING DEVICE

PROBLEM TO BE SOLVED: To provide a light irradiating device that can perform the positioning of a deformed light guide member with high accuracy, and that can be easily attached.SOLUTION: A light irradiating device includes a light source, a light guide member 401, and a holding member 402 for holdi...

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Bibliographic Details
Main Authors IWAMATSU AKIHIRO, KODA TAKUYA, KAWAMURA KAZUSHIGE
Format Patent
LanguageEnglish
Japanese
Published 14.09.2017
Subjects
ACCESSORIES THEREFOR
APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM
CALCULATING
CINEMATOGRAPHY
COMPUTING
COUNTING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MAGNETOGRAPHY
PHOTOGRAPHY
PHYSICS
PICTORIAL COMMUNICATION, e.g. TELEVISION
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Summary:PROBLEM TO BE SOLVED: To provide a light irradiating device that can perform the positioning of a deformed light guide member with high accuracy, and that can be easily attached.SOLUTION: A light irradiating device includes a light source, a light guide member 401, and a holding member 402 for holding these. The light source is a rectangular light source or a substrate 406 where a plurality of light-emitting elements is disposed linearly in a main scanning direction. The light guide member 401 has a rectangular shape in the main scanning direction, and has an incidence surface, an emission surface, and a held surface that is pressed and fixed to, and in contact with the holding member 402, and has fixed structures at both ends in the main scanning direction outside the light guide region. The fixed structure on one end is an engagement claw structure to be engaged with the holding member 402, protrudes to penetrate through a penetration hole formed in the holding member 402 and provided with a claw part 401a at a tip. The fixed structure on the other end is a fastened structure having a fastening hole 403a to pass a fastening member 404 and fixed to the holding member 402 through the fastening member 404.SELECTED DRAWING: Figure 12 【課題】変形を生じた導光部材であっても高い精度で位置決めが可能であり、かつ組み付けが容易な光照射装置を提供する。【解決手段】光源と、導光部材４０１と、これらを保持する保持部材４０２と、を備え、前記光源は、長尺状光源または複数の発光素子が主走査方向に直線状に配列された基板４０６であり、導光部材４０１は、主走査方向に長尺の形状であり、入射面、出射面、及び保持部材４０２に当接して押圧固定される被保持面を有し、導光領域外である主走査方向両端部にそれぞれ固定構造体を備え、一方の端部の固定構造体は、保持部材４０２に形成された貫通孔を貫通するように突出するとともに先端に爪部４０１aが形成され、保持部材４０２と係合する係合爪構造体であり、他方の端部の固定構造体は、締結部材を通す締結孔４０３aを有し、締結部材４０４を介して保持部材４０２に固定される締結構造体である。【選択図】図１２
Bibliography:Application Number: JP20160045569