JP2016197811A5

JP2016197811A5 -

Info

Publication number: JP2016197811A5
Application number: JP2015076898A
Authority: JP
Filing date: 2015-04-03
Publication date: 2017-09-14
Anticipated expiration: 2035-04-03

Description

上記目的を達成するため、本発明に係るイメージセンサは、フレームが有するレンズ体の副走査方向の面を挟んで保持する保持部材の挟む面の、レンズ体の被写体側の焦点位置と受光素子側の焦点位置との間の光路の中央の位置に爪または溝を設け、レンズ体の副走査方向の面の光軸方向の中央の位置に溝または爪を設け、フレームの爪または溝とレンズ体の溝または爪とを嵌合させて固定するものであって、レンズ体は、光路の方向から挿入され、フレームのばね性によりフレームに固定されていることを特徴とするものである。 To achieve the above object, an image sensor according to the present invention, the surface to sandwich the holding member for holding across the sub-scanning direction of the surface of the lens body having the frame, lens material object side focal position and the light-receiving element A claw or groove is provided at the center position of the optical path between the focal position on the side, and a groove or claw is provided at the center position in the optical axis direction of the surface in the sub-scanning direction of the lens body. The lens body is inserted from the direction of the optical path, and is fixed to the frame by the spring property of the frame .

センサＩＣ１３には、紙面に垂直な方向（主走査方向）に受光素子が並べられている。センサＩＣ１３は、レンズアレイ１１が結像した反射光を電気信号に変換する。センサ基板１４は、センサＩＣ１３を搭載した基板である。フレーム１５は、これらの部材を保持する筐体である。イメージセンサ１が密着型イメージセンサである場合、ガラス板１２の上面を副走査方向に搬送される被写体２を、レンズアレイ１１およびセンサＩＣ１３によって走査する。イメージセンサ１がフラットベッド型であった場合、ガラス板１２の上面に置かれた被写体２を、副走査方向に移動するレンズアレイ１１およびセンサＩＣ１３によって走査する。なお、図１は、ガラス板１２の上面を副走査方向に搬送される被写体２の位置に、レンズアレイ１１の被写体２側の焦点が位置し、センサＩＣ１３の位置に、レンズアレイ１１のセンサＩＣ１３側の焦点が位置していることを示している。 In the sensor IC 13, light receiving elements are arranged in a direction (main scanning direction) perpendicular to the paper surface. The sensor IC 13 converts the reflected light imaged by the lens array 11 into an electrical signal. The sensor substrate 14 is a substrate on which the sensor IC 13 is mounted. The frame 15 is a housing that holds these members. If the image sensor 1 is contact-type image sensor, the object 2 to be conveyed to the upper surface of the glass plate 12 in the sub-scanning direction, it is scanned by the lens array 11 and the sensor IC 13. If the image sensor 1 was flatbed, the object 2 placed on the upper surface of the glass plate 12 is scanned by the lens array 11 and the sensor IC13 moves in the sub-scanning direction. Incidentally, FIG. 1, the position of the object 2 to be conveyed to the upper surface of the glass plate 12 in the sub-scanning direction, the focal point of the object 2 side of the lens array 11 is positioned, the position of the sensor IC 13, the sensor of the lens array 11 IC 13 It shows that the side focal point is located.

Claims

A lens body that forms an image of at least one of reflected light and transmitted light from the subject;
A light receiving element that converts the light formed by the lens body into an electrical signal;
A frame for holding the lens body and the light receiving element;
With
The center of the optical path between the focal position on the subject side of the lens body and the focal position on the light receiving element side of the surface sandwiched by the holding member that holds the lens body in the sub-scanning direction of the frame. Nail or groove at the position of
A groove or a claw is provided at the center position in the optical axis direction of the surface in the sub-scanning direction of the lens body,
The frame claw or groove and the lens body groove or claw are fitted and fixed ,
The image sensor, wherein the lens body is inserted from the direction of the optical path and is fixed to the frame by the spring property of the frame .

A lens body that forms an image of at least one of reflected light and transmitted light from the subject;
A translucent plate installed between the lens body and the subject;
A light receiving element that converts the light formed by the lens body into an electrical signal;
A frame for holding the light transmitting plate, the lens body, and the light receiving element;
With
The surface of the holding member that holds the lens body in the sub-scanning direction of the frame is sandwiched between the contact surface of the translucent plate with the object and the center of the optical path. Provide nails or grooves,
A groove or a claw is provided at the center position in the optical axis direction of the surface in the sub-scanning direction of the lens body,
The frame claw or groove and the lens body groove or claw are fitted and fixed ,
The image sensor, wherein the lens body is inserted from the direction of the optical path and is fixed to the frame by the spring property of the frame .