Seiko Epson Corporation

Hiroshi Abe

Toshiaki Hashizume

Yoshiyuki Yanagisawa

Kazuyuki Iinuma

Fumihide Sasaki

Junya Hayakawa

Hiroyuki Meguro

To provide a light emitting device capable of adjusting an emission direction of light, and an image display system. Disclosed is a light emitting device including: a light source unit emitting light to a region along a predetermined flat surface; a frame in which the light source unit is provided; and an adjustment mechanism that adjusts an emission direction of light emitted from the light source unit, relative to the predetermined flat surface. Since the frame is provided with the adjustment mechanism adjusting the emission direction of light emitted from the light source unit, relative to the predetermined flat surface, it is possible to adjust the inclination of the frame relative to the predetermined flat surface. As a result, it is possible to adjust the emission direction of light emitted from the light source unit.

Light emitting device and image display system

A lens frame configured to hold a lens of an optical system of a projector comprising: a holder being formed along the periphery of the lens, holds the lens which is inserted by an elastic force of the frame main body, the holder includes a first holding portion configured to hold a peripheral end surface of the lens, and a second holding portion configured to hold a luminous flux incidence surface and luminous flux exit surface of the lens.

Lens frame, lens holding device, and projector

Heat of optical devices is transferred to a bottom surface portionB of an optical parts housing portionof an optical parts casingA. A ductis formed on the bottom surface portionB. A cooling air passing through a first passageA cools the bottom surface portionB, and then is supplied to a holeR to cool a liquid crystal panelR, etc. The cooling air passing through a second passageB of the ductis introduced into holesB,G to cool the liquid crystal panelsB,G. Accordingly, the optical parts casing projector capable of cooling sufficiently the optical modulator devices and other parts, e.g., the bottom surface portion, etc. of the optical parts casing.

Optical parts casing and projector

The invention provides a duct with high sound absorbing effect and sufficient exhausting efficiency, as well as an electronic apparatus having the duct. The duct can include a hollow duct body, an inflated section arranged at an intermediate part of a passage of the duct body, and a sponge bonded on internal surfaces of the duct body and the inflated section. The duct body and the inflated section can have a thickness of 0.25 mm and be formed of a sheet member of paper impregnated with polymethylpentene on the surface thereof. The duct body can also include an intake-port side duct body and an exhaust-port side duct body, which are connected together at an angle of 90&#xb0; therebetween. Further, a fan can be connected to an intake port of the intake-port side duct body. The inflated section can be arranged in the side of the intake port, and the cross-sectional area of the inflated section can be 1.8 times that of the duct body.

Growing community of inventors

Shiojiri, Japan

Hiroshi Abe