Vienex Corporation

Glory Ltd.

Kazuaki Ryuman

Akira Bogaki

Masashi Nishikawa

Motoari Shoji

Yasutoshi Hayashi

Kenchu Baku

Satoru Murakami

An optical line sensorincludes an illumination unit, a light receiving unit, and a pair of holding membersseparably attached to the light receiving unitat both ends in a main scanning direction. The illumination unitincludes fitting portions (protrusions) at both ends in the main scanning direction. Each of the holding membersincludes a fitted portion (hole). In a state where the fitting portion and the fitted portion are fitted, the illumination unitis positioned so that the irradiation optical axis of light emitted from the illumination unitoverlaps the light receiving optical axis at a position substantially coinciding with a reading line of the light receiving unitand is integrally held with the light receiving unit

Optical line sensor with pair of holding members separably attached at ends of illumination and light receiving units

A reflective member is disposed on the optical path from the linear light source to the lens array. An ultraviolet light blocking filter is provided closer to a light-receiving unit than the reflective member. A color filter is provided closer to the light-receiving unit than the ultraviolet light blocking filter. A light-receiving surface of the light-receiving unit has a first region opposed to the reflective member without the ultraviolet light blocking filter and the color filter interposed therebetween, a second region opposed to the reflective member and the ultraviolet light blocking filter without the color filter interposed therebetween, and a third region opposed to the reflective member, the ultraviolet light blocking filter, and the color filter.

Optical linear sensor unit

Growing community of inventors

Kanonji, Japan

Kazuaki Ryuman