JPH0255764U - - Google Patents
Info
- Publication number
- JPH0255764U JPH0255764U JP1988133372U JP13337288U JPH0255764U JP H0255764 U JPH0255764 U JP H0255764U JP 1988133372 U JP1988133372 U JP 1988133372U JP 13337288 U JP13337288 U JP 13337288U JP H0255764 U JPH0255764 U JP H0255764U
- Authority
- JP
- Japan
- Prior art keywords
- led
- illumination device
- line
- image reading
- staggered
- 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
Links
- 238000005286 illumination Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Facsimile Scanning Arrangements (AREA)
Description
第1図は本考案による画像読取り用照明装置の
一実施例を示す概略図、第2図は第1図の実施例
の各LEDチツプによる短手方向の照度分布を示
すグラフである。第3図は従来の画像読取り用照
明装置の一例を示すもので、Aは横断面図、Bは
縦断面図である。
10……画像読取り用照明装置、11……基板
、12……LEDチツプ、13……LEDアレイ
、14……ランプハウス、14a……隔壁、15
……凸レンズ。
FIG. 1 is a schematic diagram showing an embodiment of the image reading illumination device according to the present invention, and FIG. 2 is a graph showing the illuminance distribution in the lateral direction by each LED chip of the embodiment of FIG. FIG. 3 shows an example of a conventional illumination device for image reading, in which A is a cross-sectional view and B is a vertical cross-sectional view. 10...Illuminating device for image reading, 11...Substrate, 12...LED chip, 13...LED array, 14...Lamp house, 14a...Partition wall, 15
……convex lens.
Claims (1)
て、その移動方向に直交する走査方向に沿つて基
板上に一列に並んだLEDチツプを備えたLED
アレイと、該LEDアレイの上方で上記走査方向
に平行な中心軸を有する円筒状の凸レンズと、該
LEDアレイからの光が側方に洩れることを防止
するランプハウスとを含んでおり、上記原稿の表
面で走査方向に延びるライン状の照明光を照射す
るようにした画像読取り用照明装置において、 上記ランプハウスが各LEDを個別的に包囲す
る側壁を有しており、該側壁が、その上縁が画成
する断面の中心が該LEDアレイの中心線に対し
て千鳥状に交互にずれて位置するように、且つ各
LEDチツプの間を遮断する側壁即ち隔壁が該中
心線に対して垂直方向から交互に逆向きに斜めに
ずれて延びているように形成されていることを特
徴とする、画像読取り用照明装置。[Claims for Utility Model Registration] An LED comprising LED chips arranged in a line on a substrate along a scanning direction perpendicular to the direction of movement of a document that is relatively moved in one direction.
the original document; In the image reading illumination device configured to irradiate a line-shaped illumination light extending in the scanning direction on the surface of the lamp house, the lamp house has a side wall that individually surrounds each LED, and the side wall The centers of the cross sections defined by the edges are staggered and staggered with respect to the center line of the LED array, and the side walls or partition walls that block between the LED chips are perpendicular to the center line. An image reading illumination device characterized in that the illumination device is formed to extend diagonally in opposite directions alternately.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988133372U JPH051175Y2 (en) | 1988-10-14 | 1988-10-14 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988133372U JPH051175Y2 (en) | 1988-10-14 | 1988-10-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0255764U true JPH0255764U (en) | 1990-04-23 |
JPH051175Y2 JPH051175Y2 (en) | 1993-01-13 |
Family
ID=31391171
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1988133372U Expired - Lifetime JPH051175Y2 (en) | 1988-10-14 | 1988-10-14 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH051175Y2 (en) |
-
1988
- 1988-10-14 JP JP1988133372U patent/JPH051175Y2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH051175Y2 (en) | 1993-01-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPH0255764U (en) | ||
JPH0329935U (en) | ||
JPS62199707U (en) | ||
JPH023649U (en) | ||
JPH0369963U (en) | ||
JPH0520041Y2 (en) | ||
JPH01103962U (en) | ||
JPH0282167U (en) | ||
JPH0440352U (en) | ||
JPS6142002U (en) | Vehicle lighting using LED as a light source | |
JPH0353068U (en) | ||
JPH0238865U (en) | ||
JPS61193492U (en) | ||
JPH0373070U (en) | ||
JPS61184359U (en) | ||
JPS63181052U (en) | ||
JPH01119261U (en) | ||
JPH0392303U (en) | ||
JPH0328761U (en) | ||
JPS6315660U (en) | ||
JPH01175056U (en) | ||
JPS6268351U (en) | ||
JPH02150869U (en) | ||
JPH01111407U (en) | ||
JPS6253511U (en) |