IP Library › Granted Patent US 12,339,519
Granted Patent B2
US 12,339,519 · App. 17/528,116 · Granted Jun 24, 2025

Optical unit

Inventors: Takeshi Sue (Nagano, JP); Tsutomu Arai (Nagano, JP)
Assignee: NIDEC SANKYO CORPORATION
G02B7/1805G02B7/003G02B7/026G02B13/0065H04N23/51
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Quick Facts
Patent No.
US 12,339,519
App. No.
17/528,116
Granted
Jun 24, 2025
Kind
B2
Abstract

An optical unit includes: a reflective portion that reflects, on a reflective surface, an incident light flux incident from the outside in a reflection direction toward an imaging element from an incident direction; a movable body to which the reflective portion is fixed; and a fixed body. In the movable body, emboss processing is applied to at least one of a reflective surface contact surface in contact with the reflective surface, and a side surface contact surface in contact with a side surface of the reflective portion on a side of an intersecting direction intersecting with the incident direction and the reflection direction.

Claims (32)

1. An optical unit comprising:

a reflective portion that reflects, on a reflective surface, an incident light flux incident from outside in a reflection direction toward an imaging element from an incident direction;

a movable body to which the reflective portion is fixed;

a fixed body; and

a fixing member that fixes the movable body and the reflective portion,

wherein the fixing member comes into planar contact with at least one of an incident surface that is a surface of the reflective portion on a side of the incident direction, and an exit surface that is a surface of the reflective portion on a side of the reflection direction by abutment.

2. An optical unit comprising:

a reflective portion that reflects, on a reflective surface, an incident light flux incident from outside in a reflection direction toward an imaging element from an incident direction;

a movable body to which the reflective portion is fixed;

a fixed body; and

a fixing member that fixes the movable body and the reflective portion,

wherein the fixing member is a plate spring that is fixed to the reflective portion by holding the reflective portion between both side surfaces of the reflective portion on a side of an intersecting direction intersecting with the incident direction and the reflection direction, the fixing member being fixed to the movable body.

3. The optical unit according to claim 1 , wherein

the movable body comprises a reflective surface contact surface in contact with the reflective surface, and

the fixing member comes into contact with, at a position facing the reflective surface contact surface, a part of an incident surface that is a surface of the reflective portion on a side of the incident direction, and a part of an exit surface that is a surface of the reflective portion on a side of the reflection direction.

4. An optical unit comprising:

a reflective portion that reflects, on a reflective surface, an incident light flux incident from outside in a reflection direction toward an imaging element from an incident direction;

a movable body to which the reflective portion is fixed;

a fixed body; and

a fixing member that fixes the movable body and the reflective portion,

wherein the fixing member comprises a reflective surface support portion that supports the reflective surface, and a holding portion that holds the reflective portion between both side surfaces of the reflective portion on a side of an intersecting direction intersecting with the incident direction and the reflection direction,

the movable body comprises a reflective surface support portion contact surface in contact with the reflective surface support portion, and

a slit is formed in a surface of the reflective surface support portion in contact with the reflective surface support portion contact surface.

5. An optical unit comprising:

a reflective portion that reflects, on a reflective surface, an incident light flux incident from outside in a reflection direction toward an imaging element from an incident direction;

a movable body to which the reflective portion is fixed;

a fixed body; and

a fixing member that fixes the movable body and the reflective portion,

wherein the fixing member comprises a reflective surface support portion that supports the reflective surface, and a holding portion that holds the reflective portion between both side surfaces of the reflective portion on a side of an intersecting direction intersecting with the incident direction and the reflection direction,

the movable body comprises a reflective surface support portion contact surface in contact with the reflective surface support portion, and

a slit is formed in a surface of the reflective surface support portion in contact with the reflective surface support portion contact surface,

wherein the holding portion comprises, at a position facing the reflective surface support portion, a regulation portion in contact with a part of an incident surface that is a surface of the reflective portion on a side of the incident direction, and a part of an exit surface that is a surface of the reflective portion on a side of the reflection direction.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2021
From: SUE, TAKESHI; ARAI, TSUTOMU
To: NIDEC SANKYO CORPORATION
Reel/Frame 058145/0283 →
Priority Claims (1)
JP 2020-195991 · Nov 26, 2020 · national
Continuity (1)
Related Publication 20220163759A1 · May 26, 2022
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