# US 2016/0366384 A1 · Light source device and projector

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- Number: US 2016/0366384 A1
- Document ID: US20160366384A1
- Status: Published application
- Kind: A1
- Application number: 15/170,037
- Filed: 2016-06-01
- Published: 2016-12-15
- Earliest claimed: 2015-06-11
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Takahiro MIYATA; Fumihide SASAKI; Yukihiro HORIKO; Takahiro TAKIZAWA
- Web page: https://patentgrep.com/patent/US20160366384A1

## CPC

- H04N 9/3194: {including sensor feedback}
- G03B 21/145: {Housing details, e.g. position adjustments thereof}
- G03B 21/16: Cooling; Preventing overheating
- G03B 21/2086: {Security or safety means in lamp houses}
- H04N 9/3144: {Cooling systems (cooling of liquid crystal cells in general G02F1/133382; cooling of projectors not peculiar to the presence of an electronic spatial light modulator G03B21/16)}
- H04N 9/3164: {using multiple light sources}
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D)

## Abstract

A light source device, which is incorporated into a projector and is used, includes a light source, and a light source case, in which the light source case includes fuses that are fused in a case where the light source device is in a predetermined use state, and a light source detection portion that detects whether or not the light source device is installed at a predetermined position in the projector. A projector includes a light source cartridge that is provided with a cartridge case accommodating two light source devices and corresponding to an installation posture of a projector main body, in which the cartridge case includes a cartridge detection portion that detects the corresponding installation posture.

## Claims

### Claim 1

A light source device which is incorporated into a projector including a cooling device sending cooling air and is used, the light source device comprising:
a light source; and
a light source case that accommodates the light source,
wherein the light source case includes
a plurality of ruses that are fused in a case where the light source device is in a predetermined use state; and
a light source detection portion that detects whether or not the light source device is installed at a predetermined position in the projector.

### Claim 2 (depends on 1)

A projector comprising;
a light modulation device that modulates light emitted from a light source;
a projection optical device that projects the light modulated by the light modulation device; and
a plurality of light source cartridges that include the light source device according to claim 1, and a cartridge case accommodating a plurality of the light source devices and corresponding to an installation posture of a projector main body,
wherein the cartridge case includes a cartridge detection portion that detects the corresponding installation posture.

### Claim 3 (depends on 2)

The projector according to claim 2, further comprising:
a controller that controls an operation of the projector main body on the basis of results detected by the light source detection portion and the cartridge detection portion; and
a notification portion that performs a notification based on a process performed by the controller.

### Claim 4 (depends on 2)

The projector according to claim 2, further comprising:
a fusing circuit that fuses the fuse;
an input operation portion that receives an operation for operating the fusing circuit; and
a controller that gives an instruction for fusing the fuse corresponding to the installation posture to the fusing circuit on the basis of a result detected by the cartridge detection portion and an input operation from the input operation portion.

### Claim 5 (depends on 2)

The projector according to claim 2,
wherein the installation posture includes a normal installation posture corresponding to on-desk installation or hanging installation, and a side installation posture obtained by rotating the normal installation posture by about 90° with respect to an optical axis of light emitted from the projection optical device.

### Claim 6 (depends on 2)

The projector according to claim 2,
wherein the cartridge detection portion and the light source detection portion are configured to include electrical resistive elements.