# US 2019/0171097 A1 · Wheel member

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- Number: US 2019/0171097 A1
- Document ID: US20190171097A1
- Status: Published application
- Kind: A1
- Application number: 16/204,618
- Filed: 2018-11-29
- Published: 2019-06-06
- Earliest claimed: 2017-12-01
- Assignees: Casio Computer Co., Ltd.
- Applicants: Casio Computer Co., Ltd
- Inventors: Daijiro Fujii
- Web page: https://patentgrep.com/patent/US20190171097A1

## CPC

- G03B 21/20: Lamp housings
- G02B 26/008: {in the form of devices for effecting sequential colour changes, e.g. colour wheels}
- G03B 21/204: {using secondary light emission, e.g. luminescence or fluorescence (using different colours G03B33/00; if related to video signals H04N9/3197)}
- G03B 33/08: Sequential recording or projection (G03B33/02, G03B33/04, G03B33/06 take precedence)
- H04N 9/3114: {by using a sequential colour filter producing one colour at a time}
- H04N 9/3158: {for controlling the spectrum}
- 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)
- G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION

## Abstract

A wheel member including a wheel plate which transmits or reflects light and which is used in a rotating state, wherein the wheel plate has a center-of-gravity adjuster between flat surfaces of front and back surfaces of the wheel plate.

## Claims

### Claim 1

A wheel member comprising a wheel plate which transmits or reflects light and which is used in a rotating state, wherein the wheel plate has a center-of-gravity adjuster between flat surfaces of front and back surfaces of the wheel plate.

### Claim 2 (depends on 1)

The wheel member according to claim 1, wherein the center-of-gravity adjuster is formed of an outer circumference portion which is located farther from a rotation center than another portion in an outer circumference of the wheel plate.

### Claim 3 (depends on 1)

The wheel member according to claim 1, wherein the center-of-gravity adjuster is formed by shifting a rotation center from a center of the wheel plate which is a circle.

### Claim 4 (depends on 1)

The wheel member according to claim 1, wherein
the center-of-gravity adjuster is provided in an outer circumference of the wheel plate, and
the center-of-gravity adjuster is formed of a part which is made of a material that has a density higher than that of another portion in the outer circumference.

### Claim 5 (depends on 1)

The wheel member according to claim 1, wherein the center-of-gravity adjuster is formed of a structure of gradually increasing a thickness of the wheel plate in a direction from one side to another side across a rotation center.

### Claim 6

A wheel member comprising:
a wheel plate which transmits or reflects light and which is used in a rotating state; and
a circular plate which is disposed so as to be superposed on the wheel plate, wherein
the circular plate has a center-of-gravity adjuster between flat surfaces of front and back surfaces of the circular plate.

### Claim 7 (depends on 6)

The wheel member according to claim 6, wherein the center-of-gravity adjuster is formed of an outer circumference portion which is located farther from a rotation center than another portion in an outer circumference of the circular plate.

### Claim 8 (depends on 6)

The wheel member according to claim 6, wherein the center-of-gravity adjuster is formed by shifting a rotation center from a center of the circular plate which is a circle.

### Claim 9 (depends on 6)

The wheel member according to claim 6, wherein
the center-of-gravity adjuster is provided in an outer circumference of the circular plate, and
the center-of-gravity adjuster is formed of a part which is made of a material that has a density higher than that of another portion in the outer circumference.

### Claim 10 (depends on 6)

The wheel member according to claim 6, wherein the center-of-gravity adjuster is formed of a structure of gradually increasing a thickness of the circular plate in a direction from one side to another side across a rotation center.