Oki Electric Industry Co., Ltd.

Taiyo Yuden Co., Ltd.

Yuichi Masaki

Akira Uchiyama

Toshiyuki Iwabuchi

Shunji Sakai

Masaaki Sakamoto

Akinobu Maekawa

Kazuho Murata

A thin film laser emitting device includes a Bragg reflector including a recess and one or more diffraction gratings provided around the recess, a thin film laser layer formed in the recess, for generating lights, the lights being reflected by the diffraction gratings, a pair of electrodes, provided in the recess to have the thin film laser layer therebetween, and a laser emitting means, provided at a portion of the gratings, for emanating the reflected lights.

Thin film laser emitting device and method for the manufacture thereof

An image reader is adapted to read an image represented on a document. The image reader comprises a reading unit, an LEDs driving circuit, and means for moving the reading unit and the document relatively. The above reading unit comprises an LEDs array arranged in a straight line as light sources, a rod lens array for guiding the light emitted from each LED of the LEDs array and focusing the light on the document, and a pair of photosensors being disposed in parallel and connected in parallel with respect to each other for converting a reflected light from the document to a photocurrent. And each LED of the LEDs array is turned on only one at a time sequentially by means of the LEDs driving circuit, then the reading of the document is effected by means of the photosensors.

Image reader with scanning by array of sequentially illuminated light

Growing community of inventors

Tokyo, Japan

Yuichi Masaki