Operating device, light deflector, light deflecting device, distance measurement apparatus, image projection apparatus, and mobile object

Patent metadata

Field	Value
Publication number	US-12196947-B2
Application number	US-202117452264-A
Country	US
Kind code	B2
Filing date	Oct 26, 2021
Priority date	Nov 13, 2020
Publication date	Jan 14, 2025
Grant date	Jan 14, 2025

Abstract

An operating device includes an oscillator oscillable around an oscillation axis; a support; and a movable portion. The movable portion includes: a first connecting portion on one end, connected to the oscillator; a second connecting portion on the other end, connected to the support; and a beam extending in a direction intersecting the oscillation axis. At least one of the first connecting portion and the second connecting portion includes: a first extending portion extending along the oscillation axis; and a first thick portion extending along the oscillation axis and having a thickness greater than a thickness of another portion other than the first thick portion in the at least one of the first connecting portion and the second connecting portion, at least a part of the first thick portion included in the first extending portion.

First claim

The invention claimed is:

1. An operating device comprising:
an oscillator oscillable around an oscillation axis;
a support; and
a movable portion including:
a first connecting portion on one end, connected to the oscillator;
a second connecting portion on another end, connected to the support; and
a beam extending in an intersecting direction intersecting the oscillation axis;

at least one of the first connecting portion and the second connecting portion including:
a first extending portion extending along the oscillation axis; and
a first thick portion extending along the oscillation axis and having a thickness in a thickness direction greater than a thickness of another portion other than the first thick portion in the at least one of the first connecting portion and the second connecting portion, the thickness direction intersecting the oscillation axis and the intersecting direction, at least a part of the first thick portion included in the first extending portion,
wherein at least one of the first connecting portion and the second connecting portion includes:
an intersecting-direction extending portion extending from the beam in the intersecting direction; and
a third connecting portion extending along the oscillation axis and having a thickness in the thickness direction greater than a thickness of another portion other than the third connecting portion, at least a part of the third connecting portion included in the intersecting-direction extending portion.

2. The operating device according to claim 1 ,
wherein the beam includes multiple beams, and
wherein the movable portion further includes:
a coupling portion in which adjacent ends of the multiple beams are coupled to each other, to form a turning structure, the coupling portion including;
a second extending portion extending along the oscillation axis; and
a second thick portion extending along the oscillation axis and having a thickness in the thickness direction greater than a thickness of another portion other than the second thick portion in the coupling portion, a part of the second thick portion included in the second extending portion.

3. The operating device according to claim 1 ,
wherein each of the first connecting portion and the second connecting portion includes the first extending portion, the intersecting-direction extending portion, and the third connecting portion,
wherein the beam includes multiple beams, and
wherein the movable portion further includes:
a coupling portion in which adjacent ends of the multiple beams are coupled to each other, to form a turning structure, the coupling portion including:
a third thick portion extending along the oscillation axis and having a thickness in the thickness direction greater than a thickness of another portion other than the third thick portion in the coupling portion, a part of the third thick portion included in the third connecting portion.

4. The operating device according to claim 1 ,
wherein the support includes a first support frame portion extending along the oscillation axis, and
wherein the second connecting portion of the movable portion is connected to the support frame portion.

5. The operating device according to claim 1 ,
wherein the support includes a second support frame portion extending in the intersecting direction intersecting the oscillation axis, and
wherein the second connecting portion of the movable portion is connected to the second support frame portion.

6. The operating device according to claim 1 ,
wherein the first connecting portion includes the first thick portion,
wherein the oscillator includes an oscillator thick portion having a thickness in the thickness direction greater than a thickness of another portion other than the oscillator thick portion in the oscillator, and
wherein the first thick portion is connected to the oscillator thick portion.

7. The operating device according to claim 1 ,
wherein the second connecting portion includes the first thick portion, and
wherein the first thick portion is connected to the support.

8. A light deflector comprising the operating device according to claim 1 ,
wherein the oscillator includes a reflector.

9. A light deflecting device comprising:
a light source to emit light; and
the operating device according to claim 1 to deflect the light emitted by the light source.

10. A distance measurement apparatus comprising:
the light deflecting device according to claim 9 to emit light to an object;
a photosensor to receive light reflected from the object; and
circuitry to obtain output based on the received light from the photosensor and calculate a distance to the object based on the output.

11. An image projection apparatus comprising:
the light deflecting device according to claim 9 to deflect light emitted from the light source; and
an optical system to form an image with the light deflected by the light deflecting device, to be projected from the image projection apparatus.

12. A mobile object comprising the distance measurement apparatus according to claim 10 .

13. A mobile object comprising the image projection apparatus according to claim 11 .

Assignees

• Fujishima Masayuki
• Tsukamoto Nobunari
• Ricoh Co Ltd

Inventors

• Fujishima Masayuki
• Tsukamoto Nobunari

Classifications

• G01S7/4811

  common to transmitter and receiver · CPC title

• G01S17/931

  of land vehicles · CPC title

• G01S7/4817

  relating to scanning · CPC title

• G02B27/104

  for use with scanning systems (scanning systems G02B26/10) · CPC title

• G02B27/01

  Head-up displays · CPC title