Seiko Epson Corporation

Makoto Zakoji

Satoshi Kinoshita

Motoyuki Fujimori

Kunihiko Takagi

Takashi Toyooka

Nobuyuki Otsuki

Yoshiyuki Yanagisawa

Katsunori Tanaka

Takeshi Seto

Akira Egawa

Norimitsu Baba

Kaname Nagatani

Tsukasa Kosuda

Hiroaki Yanai

Takahiro Miyata

Ichiro Aoshima

Tomohiro Yokoo

Kenshi Sakai

Takanao Enokishima

Susumu Wada

Takahiro Suzuki

Yutaka Kawafune

Shin Aruga

Naoki Iwashita

Naoya Shindo

A light source device includes a light emitting element configured to emit light, a substrate on which the light emitting element is disposed, a first heat radiating member thermally connected to the substrate, a base supporting the first heat radiating member, a frame fixed to the base and surrounding the light emitting element and the substrate, and a pressing member fixed to the frame and configured to press the substrate toward the first heat radiating member.

Light source device and projector

A projection apparatus includes a light source apparatus, a first reflective optical element that reflects the light outputted by the light source apparatus, a second reflective optical element that reflects the light reflected off the first reflective optical element, and a projection optical apparatus that enters the light from the second reflective optical element. The projection optical apparatus has an entrance optical path, a deflection member that deflects the direction of the light traveling along the entrance optical path, and a passage optical path along which the light that exits out of the deflection member travels. The extension of the light exiting optical axis of the light source apparatus does not coincide with the extension of the optical axis of the entrance optical path and intersects with the extension containing the optical axis of the passage optical path.

Projection apparatus

An image generation apparatus includes a first reflective optical element that reflects at least part of the light outputted from a light source apparatus and a second reflective optical element disposed in the optical path of the light reflected off the first reflective optical element. A projection optical apparatus has an entrance optical path located in the light exiting optical axis of the image generation apparatus, a deflection member that deflects light having traveled along the entrance optical path, and a passage optical path along which the light deflected by the deflection member travels. The light exiting optical axis of the light source apparatus is parallel to the light incident optical axis of the projection optical apparatus, and the extension of the light exiting optical axis of the light source apparatus intersects with the passage optical path.

Projection apparatus with cooling fans

A light source device of the present disclosure includes a light source, a wavelength conversion element having a fluorescent material that a light output from the light source enters and a supporting substrate that supports the fluorescent material, an optical element guiding the light output from the light source to the fluorescent material, a holding member holding the optical element, and a housing part providing a housing space in an optical path of the light output from the light source and housing at least the optical element and the holding member in the housing space, wherein the supporting substrate is fixed to the holding member, the holding member is fixed to the housing part, and an elastic member is provided between the supporting substrate and the holding member.

A projector includes a light source device and a cooling device. The light source device includes a first light source having a plurality of first light emitting elements, a second light source having a plurality of second light emitting elements, and a light combining member adapted to combine light. The cooling device includes a first cooling section adapted to cool the first light emitting elements with a liquid refrigerant so that a first temperature difference increases in a first direction, and a second cooling section adapted to cool the second light emitting elements with a liquid refrigerant so that a second temperature difference increases in a second direction. The first and second light sources are arranged so that an illuminance distribution caused by the first temperature difference and an illuminance distribution caused by the second temperature difference are canceled out in the light combining member.

Projector with homogenized cooling of light source array

The disclosure relates to a light source apparatus including a solid-state light source, a phosphor on which light emitted from the solid-state light source is incident, an optical system that guides the light emitted from the solid-state light source at least to the phosphor, an enclosure member having a first accommodation space that accommodates the phosphor and a second accommodation space that accommodates the optical system, and an air blowing mechanism that blows air into the first accommodation space, wherein the optical system includes a pickup lens on which fluorescence emitted from the phosphor is incident, and the first accommodation space and the second accommodation space are separated from each other by a holding member that holds the pickup lens.

Light source apparatus and projector

The heat dissipation portion includes a plurality of plate-like bodies that extend out along a plane which is specified by a first direction and a second direction intersecting the first direction, and are disposed facing each other in a third direction intersecting the first direction and the second direction, a connecting portion which is located on the second direction side in the plurality of plate-like bodies, and is connected to the heat receiving portion, an opening which is located on an opposite side to the second direction in the heat dissipation portion, and a position corresponding to the connecting portion, and a shielding portion which is located on an opposite side to the second direction in the heat dissipation portion, and in the periphery of the opening.

Light source device, illumination device and projector

A projector can prevent a flicker from being caused by rotation of a rotating phosphor plate. The projector includes a solid-state light source that emits excitation light, a rotating phosphor plate that converts the excitation light into phosphor light, a liquid-crystal light modulating device that modulates the light from the rotating phosphor plate, a projection optical system that projects the modulated light onto a screen, and a control device that controls the solid-state light source and the rotating phosphor plate so as to satisfy any one of a conditional expression A=B, a conditional expression A=2B, and a conditional expression |A&#x2212;B| is greater than or equal to 20 and |A&#x2212;2B| is greater than or equal to 20, where A represents a pulse width modulation control frequency in hertz of the solid-state light source and B represents a rotation frequency in hertz of the rotating phosphor plate.

Projector

A light source device includes a plurality of solid-state light sources, and a base member on which the plurality of solid-state light sources are provided, wherein each of the solid-state light sources includes a stem on which a light-emitting element is provided and terminals connected to the light-emitting element, and the base member includes a hole portion into which one of the terminals is inserted and a planar portion that is in contact with the stem.

Alight source device includes a solid-state light source emitting light, a base member having an arrangement surface (front portion) on which the solid-state light source is arranged, and a pressing member having a pressing portion (projection) provided on the base member to fix the solid-state light source through pressing of the solid-state light source toward the arrangement surface (front portion). Through this, the solid-state light source can be easily arranged on the base member as compared with a case where the solid-state light source is fixed by welding.

The present invention realizes calculating a pulse rate accurately, even when a body movement component has no periodical characteristics, by surely removing the body movement component generated in a living organism from a pulse wave component. A pulse wave detecting section includes a pulse wave sensor and outputs a pulse wave detection signal to an MPU functioning as a body motion component removing section. A body motion sensor outputs a body motion detection signal corresponding to a body motion that affects the behavior of venous blood to the MPU. As a result, to the MPU removes the body motion component from the pulse wave detection signal based on the body motion detection signal. A pulse rate calculating section calculates the pulse rate based on the pulse wave detection signal from which the body motion component has been removed. The pulse rate is displayed on a liquid crystal display device.

Pulse meter, method for controlling pulse meter, wristwatch-type information device, control program, storage medium, blood vessel simulation sensor, and living organism information measurement device

A light source device includes: a first light source unit and a second light source unit emitting light; and a wavelength conversion element converting wavelengths of lights emitted from the first light source unit and from the second light source unit. Chief ray of light emitted from the first light source unit and transmitted through the wavelength conversion element is not parallel with chief ray of light emitted from the second light source unit and transmitted through the wavelength conversion element.

A projector includes: a casing having a surface; a cooling medium flowpath provided inside the casing, through which a cooling medium is allowed to flow; and a radiator in which a part of the cooling medium flowpath is arranged, the radiator being deployable by rotating with respect to the casing, and adapted to be accommodated in the casing and along the surface of the casing.

Growing community of inventors

Matsumoto, Japan

Makoto Zakoji