# US 12,601,962 B2 · Projector

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- Number: US 12,601,962 B2
- Document ID: US12601962B2
- Status: Granted
- Kind: B2
- Application number: 18/170,625
- Filed: 2023-02-17
- Published: 2023-08-24
- Granted: 2026-04-14
- Earliest claimed: 2022-02-18
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Takashi Nakajima; Yoshinori Hashimoto; Toshimitsu Watanabe; Nobuyuki Otsuki
- Web page: https://patentgrep.com/patent/US12601962B2

## CPC

- G03B 21/142: {Adjusting of projection optics}
- G03B 21/00: Projectors or projection-type viewers; Accessories therefor (devices for changing pictures G03B23/00)
- G03B 21/14: Details
- G03B 21/145: {Housing details, e.g. position adjustments thereof}
- 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 projector includes: an exterior casing having a first wall section; a projection optical part accommodated in the exterior casing and having a lens group projecting image light onto a projection surface; a focus lever moving a position of the lens group; a power switch being pressed to generate a control signal; and a coupling terminal electrically coupled to a cable transmitting an electrical signal. The focus lever, the power switch, and the coupling terminal are arranged at the first wall section.

## Claims

### Claim 1

A projector comprising:
an exterior casing having a plurality of wall sections including a first wall section;
a projection part accommodated in the exterior casing and having a lens group projecting image light onto a projection surface;
a focus lever moving a position of the lens group;
a press button being pressed to generate a control signal;
a coupling terminal electrically coupled to a cable transmitting an electrical signal; and
a cover covering at least the focus lever and the coupling terminal, wherein
the focus lever, the press button, and the coupling terminal are arranged at the first wall section,
the cover has a cut-out exposing the press button in a state of covering the focus lever and the coupling terminal, and
the press button is flush with an outer surface of the cover.

### Claim 2 (depends on 1)

The projector according to claim 1, wherein
the first wall section has a recess recessed toward inside of the exterior casing, and
the coupling terminal is arranged in the recess.

### Claim 3 (depends on 1)

The projector according to claim 1, wherein
the cover has a first cover covering at least one of the focus lever and the coupling terminal and a part of the other, and a second cover removably coupled to the first cover and covering another part of the other.

### Claim 4 (depends on 3)

The projector according to claim 3, wherein
the first cover is configured to be fixed to the exterior casing in a state where the second cover is detached, and covers the focus lever, and
the second cover covers the coupling terminal.

### Claim 5 (depends on 1)

The projector according to claim 1, wherein
the first wall section is provided at a position of the plurality of wall sections of the exterior casing, which position is other than at a second wall section facing the projection surface.

### Claim 6 (depends on 5)

The projector according to claim 5, wherein
the projection part is a short focus type,
the plurality of wall sections include the second wall section, a third wall section opposite to the second wall section, and a fourth wall section facing an installation surface where the exterior casing is installed, and
the first wall section is a wall section intersecting the second wall section, the third wall section, and the fourth wall section.