Optical unit

US12339519B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12339519-B2
Application numberUS-202117528116-A
CountryUS
Kind codeB2
Filing dateNov 16, 2021
Priority dateNov 26, 2020
Publication dateJun 24, 2025
Grant dateJun 24, 2025

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

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.

First claim

Opening claim text (preview).

What is claimed is: 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.

Assignees

Inventors

Classifications

  • Housings · CPC title

  • having a beam-folding prism or mirror · CPC title

  • using retaining rings or springs (G02B7/027 takes precedence) · CPC title

  • Alignment of optical elements (G02B7/001, G02B7/002 take precedence; for mirrors G02B7/1822) · CPC title

  • Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils · CPC title

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Frequently asked questions

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What does patent US12339519B2 cover?
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 …
Who is the assignee on this patent?
Nidec Sankyo Corp
What technology area does this patent fall under?
Primary CPC classification G02B13/0065. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Jun 24 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).