Konishiroku Photo Industry Co., Ltd.

Konica Corporation

Shinsuke Funaki

Yuichi Akanabe

Hiroaki Ikeda

Taketo Nozu

Toshikazu Umeda

Masatoshi Maeda

Bill On

A semiconductor laser driving apparatus wherein an irradiating energy of a semiconductor laser is adjusetd multi-stepwise by varying the irradiating time within the maximum irradiating time while maintaining at a constant value the optical output when the irradiating energy is lower than a predetermined value, whereas the irradiating energy is adjusted multi-stepwise by increasing the optical output more than the constant value while fixing the irradiating time to the maximum irradiating time when the irradiating energy is higher than the predetermined value. A semiconductor laser driving apparatus having a plurality of current generation devices whose current generation is controlled in accordance with input pulse signals, a semiconductor laser connected in series with parallel connection terminals of these current generation devices, and current control device for adjusting a supply current to the semiconductor laser by controlling the pulse widths of the input pulse signals to the plurality of current generation devices, respectively.

Semiconductor laser driving apparatus

An image memory apparatus having a photographing device for taking an image of a subject, an image memory device for storing the video signals from the photographing device, a detecting device for detecting changes in brightness level of the video signals, and a control device for supplying to the image memory device a write control signal according to the brightness level changes. The image that exists in a field where the brightness level change in the video signal occurs is stored in memory to freeze that image.

Image memory apparatus

An image recording apparatus wherein a plurality of laser beams are scanned on a color photosensitive material by an optical deflecting device, the laser beams are detected by beam detecting devices, and record starting timings for the laser beams are controlled on the basis of detection signals provided by the detecting devices so that respective record positions of the laser beams are the same.

Image recording apparatus

Optical recording apparatus

A multi-faceted photodeflector includes a plurality of groups of multiple mirrors circumferentially alternating about a rotation axis, each group consisting of the same number of mirrors. Each mirror of any particular one of the mirror groups is inclined, with respect to the rotation axis, at an angle different than the mirrors of all other mirror groups disposed about the rotation axis.

Growing community of inventors

Hino, Japan

Shinsuke Funaki