Fuji Photo Film Company, Limited

Fujifilm Corporation

Fujinon Corporation

Fuji Photo Optical Co., Ltd.

Other

Yoji Okazaki

Kazuhiko Nagano

Hiromi Ishikawa

Akinori Harada

Hiroaki Hyuga

Takeshi Fujii

Hisashi Ohtsuka

Hiromitsu Yamakawa

Takayuki Katoh

Chiaki Goto

Koji Kamiyama

Fusao Yamanaka

Teruhiko Kuramachi

Hiroshi Sunagawa

Nobuharu Nozaki

Kozi Kamiyama

Masaki Okazaki

Toshiro Hayakawa

Shinji Mitsumoto

Masayuki Naya

Mitsuru Sawano

Toshiaki Fukunaga

Jin Murayama

Katsumi Hayashi

Takao Ozaki

Yuichi Teramura

Daisuke Nakaya

Toshio Iijima

Nobuhiko Uchino

Shinsuke Umegaki

Takashi Yoshida

Koichi Kimura

Takashi Adachi

Kazuo Hakamata

Eiji Suzuki

Nobufumi Mori

Masahiro Asami

Hideo Yamanaka

Tomonari Sendai

Seiiti Kubodera

Katsuto Sumi

Yukio Sugita

Kenji Matsumoto

Yoshiharu Okino

Shinichi Shimotsu

Kiyoshi Kawai

Morimasa Sato

Shuichi Ishii

Yasukazu Nihei

Hiroyuki Hiiro

Norihisa Takada

Kiichi Kato

Takayuki Uemura

Satoshi Mino

Makoto Ishihara

Shigeaki Otani

Toshihiko Omori

Yuji Shimoyama

Mitsutoshi Tanaka

Koji Matsuo

Kazumi Kubo

Syozo Takeuchi

Masanori Sasao

Yasukazi Nihei

Hiromatsu Yamakawa

Horoaki Hyuga

Hiraoki Hyuga

Mirror sequential data supplied from an RIP are temporarily stored as divided data in memory banks of an intermediate memory. Thereafter, the stored mirror sequential data are read in blocks. Then, a transposition processor transposes a matrix of the mirror sequential data into frame sequential data, and supplies the frame sequential data to a DMD controller.

Image recording processing circuit, image recording apparatus and image recording method using image recording processing circuit

A laser apparatus includes: a plurality of laser diodes respectively having light-emission points and being fixed to a block so that the light-emission points are aligned along a direction; and a collimator-lens array integrally formed to contain a plurality of collimator lenses which are arranged along a direction and respectively collimate laser beams emitted from the plurality of laser diodes. The block has a lens-setting surface which is flat, perpendicular to optical axes of the plurality of laser diodes, and located on the forward side of the plurality of laser diodes at a predetermined distance from the light-emission points, and the collimator-lens array is fixed to the block so that an end surface of the collimator-lens array is in contact with the lens-setting surface.

Laser apparatus in which laser diodes and corresponding collimator lenses are fixed to block, and fiber module in which laser apparatus is coupled to optical fiber

A laser apparatus includes: one or more semiconductor lasers emitting one or more laser beams; an optical fiber; an optical condensing system which makes the one or more laser beams enter the optical fiber from a light-entrance end of the optical fiber; and a package which fixedly contains the optical condensing system and the one or more semiconductor lasers, and fixedly holds the optical fiber in such a manner that the light-entrance end faces the optical condensing system. The one or more semiconductor lasers are directly or indirectly fixed to the package with solder, and the one or more optical components are directly or indirectly fixed to the package with a thin layer of adhesive having a thickness of less than or equal to 1 micrometer, and preferably a thickness within a range of 0.2 micrometers to 1 micrometer after being dried.

Laser apparatus and method for assembling the same

A solid-state laser crystal constituting a laser-diode-excited solid-state laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber laser amplifier is doped with one of Ho, Sm, Eu, Dy, Er, and Tbso that a laser beam is emitted from the solid-state laser crystal or the optical fiber, or incident light of the fiber laser amplifier is amplified, by one of the transitions fromStoI, fromStoI, fromGtoH, fromGtoH, fromFtoH, fromDtoF, fromFtoH, fromFtoH, fromStoI, fromHtoI, and fromDtoF. The above solid-state laser crystal or optical fiber is excited with a GaN-based compound laser diode.

[object Object]

Laser-diode-excited laser apparatus, fiber laser apparatus, and fiber laser amplifier in which laser medium doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and Tb3+ is excited with GaN-based compound laser diode

A solid-state laser crystal constituting a laser-diode-excited solid-state laser apparatus or an optical fiber constituting a fiber laser apparatus or fiber laser amplifier is doped with one of Ho, Sm, Eu, Dy, Er, and Tbso that a laser beam is emitted from the solid-state laser crystal or the optical fiber, or incident light of the fiber laser amplifier is amplified, by one of the transitions fromStoI, fromStoI, fromGtoH, fromGtoH, fromFtoH, fromDtoF, fromFtoH, fromFtoH, fromStoI, fromHtoI, and fromDtoF. The above solid-state laser-crystal or optical fiber is excited with a GaN-based compound laser diode.

In a method for stabilizing an optical output of a semiconductor laser: the semiconductor laser is heated with a heater when the semiconductor laser is not in operation; and the heating of the semiconductor laser is stopped, or the amount of heat supplied to the semiconductor laser is lowered, almost simultaneously with startup of the semiconductor laser.

Method for stabilizing optical output of semiconductor laser

(Problem to be solved) To provide a laser beam synthesizing apparatus which is small in size and high in output power. (Means for solving the problem) A convergent angle transforming optical systemis disposed further upstream of the upstream-most position Pa in the positions where the optical axes of beam bundles La, Lb, Lc . . . which are radiated from a plurality of semiconductor lasersA,B,C . . . and converged in the fast axis view by a converging/dispersion lensintersect each other in the fast axis view, and the whole beam bundle made up of the beam bundles La, Lb, Lc . . . passed through the converging/dispersion lensis converged in the fast axis view by the convergent angle transforming optical systemso that the angle of convergence of the whole beam bundle is made smaller in the fast axis view, and introduced into the coreof an optical fiber

Apparatus for synthesizing laser beams

In a laser module comprising a hermetically sealed container having inside a semiconductor laser device whose emission wavelength is 350&#x2dc;450 nm, generation of organic volatile gas is suppressed in the container and life of the module is prolonged. In a laser module comprising a hermetically sealed container having inside a semiconductor laser device whose emission wavelength is 350&#x2dc;450 nm and whose life is 5500 hours or more, optical components whose organic volatile gas generation measured by GC/MS is 10 &#x3bc;g/g or less at 150&#xb0; C. are positioned in the container. In addition, as an organic adhesive to fix the optical components such as a collimating lens is used an organic adhesive whose organic volatile gas generation measured by GC/MS is 300 &#x3bc;g/g or less at 15&#xb0; C.

Laser module

An image exposure device includes an exposure head for forming a desired pattern on a photosensitive material. The exposure head is equipped with a light source for emitting a great number of light beams, a spatial light modulator in which a great number of pixel portions are arranged for independently modulating the light beams emitted from the light source, a micro lens array in which a great number of micro lenses are arranged for individually converging the great number of light beams modulated by the pixel portions, and a total of two or more aperture arrays arranged in the stage before the micro lens array and/or the stage after the micro lens array. Each of the aperture arrays has a great number of apertures for individually restricting the light beams.

Image exposure device

Light modulated by a spatial light modulator is projected onto photosensitive material and the photosensitive material is exposed to light in a predetermined pattern. The action of the spatial light modulator is controlled so that the amount of the light projected onto the photosensitive material is changed in at least two stages according to the part of the photosensitive material.

Exposure method and exposure system

In a laser module, a laser beam which is emitted from a laser element is focused by a condensing optical system and caused to enter an incidence end of an optical fiber. A laser device is provided with a plurality of these laser modules. Emission end portions of the optical fibers are bundled to form a laser emission portion. A thickness of cladding h of each optical fiber is set to a value calculated in accordance with the following equation: As a result, it is possible to emit a laser-beam with a high intensity that is required for functionality as a laser light source, for the purpose of raising resolution of an exposure apparatus.

Laser device and exposure device using the same

An optical wiring substrate fabrication method capable of simple formation, by maskless exposure, of an inclined face shape at an end portion of a core layer structuring an optical waveguide. Using an exposure apparatus, image exposure is carried out with a light beam which is modulated by a spatial modulation element in accordance with image information. A predetermined area of a photosensitive material (a photoresist), which is coated on the core layer which is a material of the optical wiring substrate, is exposed by a light beam (UV) and patterned to form an etching mask. A region corresponding to the inclined face, which is to be formed at the end portion of the core layer, is exposed and patterned by the light beam, exposure amounts of which are controlled in accordance with the inclined form of the inclined face, such that an end portion of the etching mask has an inclined face structure. When the core layer is worked by etching using this etching mask, working of the core layer at the end portion of the core layer progresses in proportion to film thickness of the etching mask, and the inclined face is formed.

Optical wiring substrate fabrication process and optical wiring substrate device

Growing community of inventors

Kaisei-machi, Japan

Yoji Okazaki