Sony Corporation

Shin-etsu Chemical Co., Ltd.

Mitsumi Electric Company Ltd.

Dexerials Corporation

Other

Sony Electronics Inc

Kabushiki Kaisha Toshiba

Yuji Kimura

Akira Ogino

Hisayoshi Moriwaki

Takashi Kohashi

Nozomu Ikeda

Makoto Sato

Kazuhiro Suzuki

Satoshi Kobayashi

Hiroshi Takano

Shigeru Sakai

Yasushi Takai

Chisato Komori

Teruhiko Kori

Tadashi Ezaki

Norifumi Yoshida

Kazuaki Suzuki

Takahiro Asada

Riichiro Hibiya

Kazue Sadanaka

Masahiko Sato

Yoshitaka Yoshino

Koichi Mukai

Toyoki Tanaka

Masatoshi Ishii

Futoshi Kaibuki

Kenji Matsuoka

Hiroshi Utsunomiya

Shigenobu Tajima

Hirofumi Kawazoe

Motoi Komatsu

Shigeyuki Nakamura

Yoshihiro Yoneda

Hiroaki Toda

Hiroyuki Yasui

Shigeki Katayama

Takayuki Kurokawa

Fumihiko Saito

Ken-ichiro Suzuki

Koji Nishikawa

Tetsuo Otani

Youzo Ohashi

To provide a protecting device and a battery pack using the same, which are less likely to cause a spark even when a high voltage is applied and can safely and quickly interrupt the current path. A protecting device includes: an insulating substrate; a fuse element; a heat-generatorwhich generates heat to blow the fuse element; a heat-generator feeding electrodewhich serves as a power-feeding terminal to the heat-generator; an insulating layerwhich covers the heat-generator; and a heat-generator lead-out electrodewhich is formed along the heat-generatoron the insulating layerand holds the melted conductorof the fuse element, wherein, when the heat-generatoris energized, the heat-generator feeding electrodeside thereof works as a high potential portion and the heat-generator lead-out electrodeside thereof works as a low potential portion, and in the heat-generator lead-out electrode, an overlapping area in which a distal end portionextending in the high potential portion side of the heat-generatoroverlaps the heat-generatoris smaller than an overlapping area in which a proximal end portionextending in the low potential portion side of heat-generatoroverlaps the heat-generator

Protecting device and battery pack

A display apparatus for displaying video made by laser light includes at least one laser of which the light output varies in accordance with current, a storage unit configured to store at least one conversion table for correcting current-light output characteristics of the laser so as to approximate to desired characteristics, and a control unit configured to retrieve the conversion table from the storage unit to cause the at least one laser to emit light based on data converted using the conversion table.

Display apparatus

A film-forming powder containing a rare earth oxyfluoride has an average particle size D50 of 0.6-15 μm, a total volume of ≤10 μm pores of 0.51-1.5 cm/g as measured by mercury porosimetry, and a BET surface area of 3-50 m/g is suitable for forming a dense film in high yields or deposition rates and high productivity. The film-forming powder having a greater pore volume can be prepared by forming a rare earth ammonium fluoride complex salt on surfaces of rare earth oxide particles to provide precursor particles, and heat treating the precursor particles at a temperature of 350 to 700° C.

Film-forming powder, film forming method, and film-forming powder preparing method

Provided is a protecting device that can prevent damage of the device by releasing the pressure inside the housing by providing openings in the housing and can secure appropriate insulation. The protecting device includes: a meltable conductor; first and second external connection terminalsconnected to both ends of the meltable conductor; and a housinghaving a lower caseand an upper case, wherein one end of the first external connection terminaland one end of the second external connection terminalare led out from the housing, and the housing is provided with a first openingformed facing a front surface of the first external connection terminaland a second openingformed facing a front surface of the second external connection terminal

Provided are a protecting device capable of safely and quickly interrupting a current path by restricting heat absorption to a lower case, and a battery pack using the same. A protecting device includes: a meltable conductor; and a housingincluding a lower caseand an upper case, the housing being formed by joining the lower caseand the upper case, and the lower caseis provided with a recessed portionhaving support portionsprovided at opposing side edges of the recessed portionand hollow portionsprovided on the side edges substantially orthogonal to the side edges of the recessed portionon which the support portionsare provided.

A film-forming powder containing a rare earth oxyfluoride has an average particle size D50 of 0.6-15 &#x3bc;m, a total volume of &#x2264;10 &#x3bc;m pores of 0.51-1.5 cm/g as measured by mercury porosimetry, and a BET surface area of 3-50 m/g is suitable for forming a dense film in high yields or deposition rates and high productivity. The film-forming powder having a greater pore volume can be prepared by forming a rare earth ammonium fluoride complex salt on surfaces of rare earth oxide particles to provide precursor particles, and heat treating the precursor particles at a temperature of 350 to 700&#xb0; C.

A light scanning apparatus includes a light source configured to intermittently emit light based on an irradiation timing signal; a mirror configured to reflect the light emitted by the light source; an actuator configured to cause the mirror to be deflected based on drive signals; a sensor configured to output a signal according to deflection of the mirror; an irradiation timing adjusting-unit configured to adjust the irradiation timing signal based on the output signal of the sensor; and an irradiation timing storage configured to store the adjusted irradiation timing signal.

Light scanning apparatus and method of controlling light scanning apparatus

An image projection apparatus includes a light irradiation device configured to irradiate a laser beam, an optical scan device configured to deflect the laser beam to make an optical scan, and project an image on a display region, an optical sensor arranged outside the display region, and including a first light receiving region and a second light receiving region that are arranged at different positions along a vertical scanning direction of the optical scan, and a deflection angle controller. The deflection angle controller corrects a deflection angle in the vertical scanning direction of the optical scan device, based on a number of times the laser beam is detected by the first light receiving region and a number of times the laser beam is detected by the second light receiving region.

Image projection apparatus and image projection method

A light scanning apparatus includes a light source configured to output laser light, and a mirror configured to reflect the laser light from the light source. The light scanning apparatus includes a mirror driving unit configured to resonantly drive the mirror in a first direction and non-resonantly drive the mirror in a second direction, the second direction being perpendicular to the first direction. The light scanning apparatus includes a first sensor configured to output a signal in accordance with a first deflection angle at which the mirror is oriented with respect to the first direction. The light scanning apparatus includes a second sensor configured to output a signal in accordance with a second deflection angle at which the mirror is oriented with respect to the second direction.

Light scanning apparatus and method for controlling light scanning apparatus

An optical scanning apparatus that oscillates a mirror in at least one direction, includes a mirror driving circuit including a digital-to-analog converter and an amplifier and generating a pair of driving signals for driving the mirror based on digital driving waveform data, a reference waveform data generator generating a reference waveform data, and an offset setting circuit setting an offset value of the reference waveform data, based on a dead band of the amplifier and a periodic integral non-linearity error of the digital-to-analog converter, to generate the driving waveform data.

Optical scanning apparatus and method of controlling optical scanning apparatus

The invention has an object to provide a display device that enables a user to obtain information from a projection image without losing information obtained from the surrounding environment. The display device is to be mounted on a head of the user for allowing the user to view a predetermined image, and includes a light quantity detector () to detect a quantity of external light; a laser (R,G,B) to emit a laser light having a light quantity depending on a current value; a light attenuator () including filters to switch an attenuation ratio so as to attenuate the laser light; an optical scanner () to scan the laser light transmitted through the filter; an optical projection system () to project the scanned laser light to form an image; and a controller () to control brightness of the image by increasing or decreasing the current value and by switching the attenuation ratio of the filter, based on the light quantity of the external light detected by the light quantity detector.

Display device

A two-dimensional scan type light scanning device is configured to perform oscillation of a mirror in a first direction and a second direction perpendicular to the first direction. The light scanning device includes a second actuating beam causing the oscillation of the mirror in the second direction, a differential calculation unit configured to calculate a difference between a bending amount of the second actuating beam at a time of an initial drive and a bending amount of the second actuating beam after a predetermined period of time, and a phase shift calculation unit configured to calculate an amount of phase shift between a driving signal for oscillating the mirror in the first direction and a signal representing a displacement of the mirror in the first direction, based on the difference.

Light scanning device and light scanning method

A display device that includes an attachment part mountable on a head of a user, a control device to control the attachment part, and a transmission cable to connect the attachment part with the control device, further includes an imager; a first converter configured to convert a digital signal from the imager into an analog signal; a second converter configured to convert the analog signal into a video signal; a laser light generator configured to generate a laser light modulated depending on the video signal; an optical scanner configured to scan the laser light; and an optical projection system configured to project the scanned laser light to form an image. The imager, the first converter, the optical scanner, and the optical projection system are placed in the attachment part. The second converter and the laser light generator are placed in the control device. The analog signal and the laser light are transmitted via the transmission cable.

An image projection apparatus includes a light emission unit for emitting laser light; a light scanning unit for projecting an image on a drawing area by reflecting the light and scanning the reflected light; a light detection unit arranged outside of the drawing area; a detection unit for detecting, according to a deviation from a desired value of a first pixel detected by the light detection unit when the light is horizontally scanned in a first direction and a deviation from a desired value of a second pixel detected by the light detection unit when the light is horizontally scanned in a second direction, each of a phase deviation of the laser light in a horizontal scanning direction and a swing angle fluctuation of the light scanning unit; and a compensation unit configured to compensate for each of the phase deviation and the swing angle fluctuation.

Image projection apparatus and compensation method

An optical scanning control device includes a scanner that scans light emitted from a laser in accordance with an image signal to form an image on a screen; a first optical detector that detects light scanned by the scanner; a second optical detector that detects light scanned by the scanner; and a controller that controls a deflection angle of the scanner based on a time difference between an output of the first optical detector and an output of the second optical detector.

Growing community of inventors

Tokyo, Japan

Yuji Kimura