JPS6315656U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の分解斜視図、第２
図は本実施例の組立完了後の装置の断面図、第３
図は従来のＬＥＤアレイ光源の斜視図、第４図は
従来の原稿読取り光学装置の断面図を示す。 １１……ＬＥＤアレイ光源、１２……ＬＥＤア
レイ、１３……放熱板、２０……筐体、２２……
プラテン面、３０……取付けねじ、３３……底板
。 Fig. 1 is an exploded perspective view of one embodiment of the present invention;
The figure is a cross-sectional view of the device after the assembly of this embodiment is completed.
The figure shows a perspective view of a conventional LED array light source, and FIG. 4 shows a sectional view of a conventional document reading optical device. 11...LED array light source, 12...LED array, 13...heat sink, 20...casing, 22...
Platen surface, 30...Mounting screw, 33...Bottom plate.

Claims (1)

【実用新案登録請求の範囲】 (1) 長尺のＬＥＤアレイと、長さ方向および幅
方向に突出部を有し、かつ底部にフインが形成さ
れた放熱板と、該ＬＥＤアレイおよび放熱板を収
納する筐体とを具備し、該放熱板が前記長さ方向
の突出部の２箇所で前記筐体に固着されるように
したことを特徴とする原稿読取り光学装置。 (2) 前記突出部の固着箇所に遊びを持たせるこ
とにより、ＬＥＤアレイの光軸合せを容易にした
ことを特徴とする前記実用新案登録請求の範囲第
１項記載の原稿読取り光学装置。 (3) 前記筐体をプラスチツク成型品で作り、前
記放熱板の幅方向の突出部で、該筐体のプラテン
面を支持するようにしたことを特徴とする前記実
用新案登録請求の範囲第１項記載の原稿読取り光
学装置。[Claims for Utility Model Registration] (1) A long LED array, a heat sink having protrusions in the length direction and width direction and having fins formed on the bottom, and the LED array and the heat sink. 1. A document reading optical device comprising: a casing for accommodating the document; and the heat sink is fixed to the casing at two locations on the longitudinal protrusion. (2) The document reading optical device according to claim 1, wherein the optical axis alignment of the LED array is facilitated by providing play in the fixed portion of the protrusion. (3) Claim 1 of the above-mentioned utility model registration, characterized in that the casing is made of a plastic molded product, and the platen surface of the casing is supported by a protrusion in the width direction of the heat sink. The document reading optical device described in Section 1.