Sony Corporation

Yoshihisa Aikoh

Takahiro Mochizuki

Keisuke Homma

Yuji Kato

Takashi Takamatsu

Kazumasa Ikeura

Shiun Sakai

Tomomi Yuno

Hideki Yamamoto

Tetsuaki Iwane

A composite-optical-system unit () includes a plurality of polarization beam splitters (A,B, andC), a pair of spacer plates (or the like), and an optical element (). Each of the pair of spacer plates () is arranged between the first polarization beam splitter (A) and the second polarization beam splitter (C) of the plurality of polarization beam splitters such that a first contact surface is fixed on an emission-side surface () of the first polarization beam splitter (A) by surface contact, and a second contact surface is fixed on an incident-side surface () of the second polarization beam splitter (C) by surface contact. The optical element () is arranged between the pair of spacer plates ().

Composite-optical-system unit and projector

To provide a phosphor wheel capable of restraining vibration caused by a driving unit for rotatably driving a wheel and reducing noise in a high frequency band. The phosphor wheel includes: a wheel substrate that has a surface on which a fluorescent material is provided; a driving unit that rotates the wheel substrate; a support portion that supports the driving unit and is fixed to a housing; and a buffer member that is provided to fill a space between the support portion and a part of the housing.

Phosphor wheel, light source unit, and image display device

[Solving Means] A composite-optical-system unit includes a polarization beam splitter and a thermal conduction member. The polarization beam splitter includes a first prism including a first surface, a second prism including a second surface having an area different from an area of the first surface, and an overlap interface on which the first surface is attached to and overlaps the second surface. The thermal conduction member is thermally connected to a connection region being a region other than the overlap interface of the first surface or the second surface having an area larger than an area of the other surface.

An image display apparatus includes an image generation element generating an image on the basis of incident light, an illumination optical system having an irradiated surface and guiding light applied to the irradiated surface into the image generation element, the irradiated surface including a plurality of divided areas. A light source system includes a plurality of light source units corresponding to the plurality of divided areas, and a light guiding optical system, the plurality of light source units emitting emitted light to corresponding divided areas. Further, at least one of the plurality of light source units is arranged so that the emitted light passes through space opposed to at least one different divided area, the at least one different divided area being different from the divided area to be irradiated with the emitted light.

Image display apparatus, light source apparatus, and image display method

A light source unit, light source apparatus () and an image display device (), each including at least two reflecting surfaces () configured to reflect a first light and/or collect the first light to a point on a light emitter, at least one () of the at least two reflecting surfaces () is an aspheric reflecting surface.

Light source unit, light source apparatus, and image display apparatus

A light source apparatus includes a first light source module and a second light source module. The first light source module emits first emission light. The second light source module includes a light source unit that generates second emission light, and a switch unit that switches a position of an emission optical axis of the second emission light generated by the light source unit between a first optical axis position for emitting synthetic light of the first emission light and the second emission light and a second optical axis position for separating the first emission light and the second emission light for emission.

Light synthesis apparatus and light separation apparatus

There is provided an image display apparatus including: a light source unit; at least one light modulation device configured to modulate light from the light source unit, and to emit a modulated light beam; and a sensor configured to receive diffracted light of the modulated light beam emitted from the at least one light modulation device, and to measure intensity of the modulated light.

Image display apparatus and control method

There is provided a liquid crystal display unit including a liquid crystal panel for modulating light; a light shielding plate for controlling light not to be incident on areas other than an effective pixel area of the liquid crystal panel; an optical compensation element arranged at sides on which the light is incident in the liquid crystal panel and the light shielding plate; and an optical compensation element holder for holding the optical compensation element to be spaced from the light shielding plate and not to contact other members.

Liquid crystal display unit and projection-type display device

A liquid crystal display unit includes a liquid crystal display element for modulating light; and a holder part which has a holding portion, at least one connecting portion, an attenuation portion, and a plurality of through-holes. The holding portion holds the liquid crystal display element. The connecting portion is formed integrally with the holding portion, and may be connected to a fixing member for fixing a position of the liquid crystal display element. The attenuation portion is formed in the area from the connecting portion to the holding portion, and attenuates a force transmitting from the connecting portion to the holding portion. The through-holes are formed in the at least one connecting portion. The through-holes include at least one cut-out-through-hole having its part opened. The through-holes allow insertion of connecting members for connection to the fixing member.

Liquid crystal display unit and projection display apparatus

A light source unit includes one or more solid-state light sources and a light collecting optical system. The one or more solid-state light sources are arranged on a rear side of an output portion and each output light in a predetermined wavelength range along the same direction as an optical-axis direction. The output portion includes a light emitter that is excited by the light in the predetermined wavelength range with a predetermined direction as the optical-axis direction to emit visible light in a wavelength range longer than the predetermined wavelength range. The output portion is also capable of outputting light containing the light in the predetermined wavelength range and the visible light from the light emitter along the optical-axis direction. The light collecting optical system collects the light in the predetermined wavelength range.

Growing community of inventors

Kanagawa, Japan

Yoshihisa Aikoh