Hitachi-kokusai Electric Inc.

Nec Display Solutions, Ltd.

Kokusai Electric Corporation

Nec Corporation

Nec Viewtechnology, Ltd.

Kokusai Electric Co., Ltd.

Akihiro Osaka

Hideto Yamaguchi

Motoya Takewaki

Tetsuya Kosugi

Tokunobu Akao

Motoyasu Utsunomiya

Atsushi Katou

Atsushi Umekawa

Masateru Matsubara

Hiroyuki Saitou

Kouichi Noto

Masaaki Ueno

Masashi Sugishita

Tatsuhisa Matsunaga

Hiro Karube

Masaki Sugawara

Hiroshi Sekiyama

Moyota Takewaki

Masaki Murobayashi

A thermocouple includes: a temperature measuring portion configured to measure an internal temperature of a reaction tube; a main body portion provided therein with a wire which constitutes the temperature measuring portion; and a cushioning portion attached to the main body portion at least in the vicinity of the temperature measuring portion, wherein the thermocouple is fixed to an outer surface of the reaction tube in a state in which the thermocouple makes contact with the reaction tube through the cushioning portion.

Substrate processing apparatus, and thermocouple

Thermometry tool for substrate processing apparatus

Reaction tube

Protector tube for thermocouple

A projector in an illumination optical system includes a laser light source, a synchronization signal processor that converts synchronization signals that are synchronized with video signals input from outside the projector into video signals to be used inside the projector, an LD driver that controls a lighting state of the laser light source according to the synchronization signals output from the synchronization signal processor, an LED (Light Emitting Diode) light source, an LED driver that controls a lighting state of the LED light source according to the synchronization signals output from the synchronization signal processor, a rotational state detector that detects a rotational state of a phosphor wheel, and a phosphor wheel driver that, based on a detected result of the rotational state detector, controls the rotational state of the phosphor wheel.

Projector in illumination optical system including phosphor wheel driver

Phosphor color foilcomprises glass substrate, rotary motorfor rotating glass substrate, and phosphor (first phosphor)annularly applied on the surface of glass substrate. The center of the applied region of phosphoris different from the rotational center of glass substrate. The center of one or both of outer boundary lineand inner boundary lineof the applied region of phosphoris different from the rotational center of glass substrate. Center axisof glass substrateis separated from the rotational center. Another phosphor (second phosphor)is annularly applied adjacently to and inside or outside the applied region of phosphor

Phosphor color wheel and projection display device including same

Provided is an excitation light synthesizing unit capable of emitting, in one direction, excitation light incident from a plurality of difference directions. The excitation light synthesizing unit includes polarization splitter film (), first and second &#xbc; wavelength plates (and), and reflection member (). Polarization splitter film () transmits excitation light that is P-polarized light while reflecting excitation light that is S-polarized light. First and second &#xbc; wavelength plates (and) are arranged on the path along which first excitation light (L), which is directed toward polarization splitter film (), travels. Reflection member () disposed between first and second &#xbc; wavelength plates (and). Reflection member () reflects second excitation light (L) incident via polarization splitter film () toward polarization splitter film (). Reflection member () includes hole () formed to pass first excitation light (L).

Excitation light synthesizing unit, light source unit, and projection-type display apparatus

This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates excitation light; a phosphor that generates a fluorescent light by means of the excitation light; a light tunnel that projects the excitation light that is incident at one end towards the phosphor from another end, and projects a fluorescent light generated with the phosphor from the one end; and a dichroic mirror that is provided between the laser light source and the light tunnel, and that allows the fluorescent light or the excitation light to pass through, and reflects the remaining excitation or fluorescent light.

Illumination optical system and projector using the same

This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates excitation light having a first wavelength; a phosphor wheel including a blue fluorescent light generation region that generates fluorescent light having a second wavelength by means of the excitation light, and a green fluorescent light generation region that generates fluorescent light having a third wavelength by means of the excitation light; an LED light source that generates light having a fourth wavelength; and a dichroic mirror that reflects fluorescent light having the second wavelength and fluorescent light having the third wavelength and allows light having the fourth wavelength to pass therethrough, to thereby emit each of the lights in the same direction.

Growing community of inventors

Tokyo, Japan

Akihiro Osaka