Sharp Kabushiki Kaisha Corporation

Takanobu Sato

Tazuko Kitazawa

Noboru Iwata

Teruhisa Kotani

Takashi Arimoto

Shigemi Maeda

Hideharu Tajima

Go Mori

Hirohisa Yamada

Yoshihisa Adachi

Toshihiko Sakai

Tetsuya Okumura

An optical sensor system includes an optical sensor head having a light-emitting device and a detector which detects light emitted from the light-emitting device, and a calculator circuit. The light-emitting device includes a resonator which includes a first reflective surface, a second reflective surface facing the first reflective surface, and a waveguide provided between the first reflective surface and the second reflective surface. At least one metal microparticle capable of exciting surface plasmon is formed on the first reflective surface. The calculator circuit calculates an environment parameter at the first reflective surface on the basis of a detected value from the detector.

Optical sensor system

The invention intends to accurately measure a concentration of an object. An optical sensor () includes a detection light source () that emits measuring light, a light detection unit () that detects light intensity of the measuring light, which has been changed due to a change in optical characteristics of an object detection member (), and a reference light source () that emits reference light. Light intensity of the reference light is detected by the light detection unit () without being affected by the change in the optical characteristics of the object detection member. The two light sources are arranged under the same environment.

Light intensity detector and detection method

An optical sensor system is provided which can be used not only as an ordinary light source, but also to calculate an environmental parameter. Rear surface outgoing light () output from a rear surface () of a semiconductor laser () is used in a process of calculating an environmental parameter by control and arithmetic device () to, while front surface outgoing light () output from a front surface () is used in an application other than the calculation of the environmental parameter.

Optical sensor system, optical gas sensor system, particulate sensor system, light emitting apparatus, and image printing apparatus

User convenience of data whose duplication is restricted and data created by utilizing the data is improved. An information recording device () is capable of recoding information onto an RE layer () of an optical disk (), and includes a recording and replay control section () for recording, onto the RE layer (), duplication-restricted information utilization information () created by utilizing duplication-restricted information () whose duplication onto a different optical disk is restricted.

Information recording device, information recording medium and information recording method

An image watching glasses identification device(oror) is an image watching glasses identification device(oror) for identifying a pair of shutter glassesthrough which to watch an image displayed on a display device, the image watching glasses identification device(oror) including: an identification information obtaining sectionfor obtaining an identification information item for identifying the pair of shutter glassesand; a display control sectionfor causing the display deviceto display an identification result associated with the identification information item obtained by the identification information obtaining section. This makes it possible to provide an image watching glasses identification device that is capable of causing, when a viewer watches through the pair of image watching glassesthe image displayed on the display device, the display deviceto display the identification result. The identification result enables the viewer to identify the pair of image watching glasses worn by the viewer.

Image watching glasses identification device, image watching system, pair of image watching glasses, image watching glasses identification program, computer-readable recording medium, and display device

A photoelectric conversion device comprises a photoelectric conversion layer; a plurality of structures made of a dielectric substance; and a medium layer for transmitting light interposed between the photoelectric conversion layer and the structures or between the structures, or both, wherein the plurality of structures and the medium layer satisfy n&#x3e;nand D&#xd7;n/&#x3bb;&#x3c;0.3, wherein &#x3bb;is a maximal sensitivity wavelength at which the sensitivity of the photoelectric conversion layer to light energy is maximal, nis a refractive index of the medium layer at the wavelength &#x3bb;, nis a refractive index of the structures at the wavelength &#x3bb;, and Dis an average of shortest distances between an light exposure surface of the photoelectric conversion layer and the structures.

Photoelectric conversion device

An information recording device in accordance with the present invention obtains drive information of a semiconductor laser which is included in a magnetic head by means of a drive information obtaining section and successively records the information in a drive information storing section. A magnetic head control section controls the magnetic head in accordance with a condition of the semiconductor laser on the basis of the drive information thus obtained by the drive information obtaining section.

Growing community of inventors

Osaka, Japan

Takanobu Sato