Lens apparatus

US11150435B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11150435-B2
Application numberUS-201916594185-A
CountryUS
Kind codeB2
Filing dateOct 7, 2019
Priority dateNov 1, 2018
Publication dateOct 19, 2021
Grant dateOct 19, 2021

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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

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present invention includes a plurality of lenses that are disposed such that optical axes are aligned in an axial direction, a first lens frame that holds a first lens of the plurality of lenses, and a second lens frame that holds a second lens of the plurality of lenses. The first lens frame comes into contact with the second lens frame and is disposed on one side of the second lens frame in the axial direction. The second lens frame includes a penetration hole penetrating the second lens frame from the other side in the axial direction to the one side in the axial direction. Air is suctioned and discharged via the penetration hole such that the first lens frame and the second lens frame are temporarily fixed through vacuum adsorption.

First claim

Opening claim text (preview).

What is claimed is: 1. A lens apparatus comprising: a plurality of lenses that are disposed such that optical axes are aligned in an axial direction; a first lens frame that holds a first lens of the plurality of lenses; and a second lens frame that holds a second lens of the plurality of lenses, wherein the first lens frame comes into contact with the second lens frame and is disposed on one side of the second lens frame in the axial direction, wherein the second lens frame includes a penetration hole penetrating the second lens frame from the other side in the axial direction to the one side in the axial direction, and wherein air is suctioned and discharged via the penetration hole such that the first lens frame and the second lens frame are temporarily fixed through vacuum adsorption. 2. The lens apparatus according to claim 1 , wherein the second lens frame has a groove portion which communicates with the penetration hole and is recessed to the other side in the axial direction on a surface on the one side in the axial direction. 3. The lens apparatus according to claim 2 , wherein the groove portion has an annular shape. 4. The lens apparatus according to claim 1 , further comprising: a main body that has a barrel shape with a barrel hole penetrating the main body in the axial direction, wherein the first lens and the second lens frame are accommodated in the barrel hole. 5. The lens apparatus according to claim 4 , further comprising: a fixing portion that fixes the first lens and the second lens frame to the main body. 6. The lens apparatus according to claim 1 , wherein the second lens frame is a plurality of lens frames arranged in the axial direction.

Assignees

Inventors

Classifications

  • G02B7/021Primary

    for more than one lens · CPC title

  • G02B7/023Primary

    permitting adjustment · CPC title

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What does patent US11150435B2 cover?
The present invention includes a plurality of lenses that are disposed such that optical axes are aligned in an axial direction, a first lens frame that holds a first lens of the plurality of lenses, and a second lens frame that holds a second lens of the plurality of lenses. The first lens frame comes into contact with the second lens frame and is disposed on one side of the second lens frame …
Who is the assignee on this patent?
Mitutoyo Corp
What technology area does this patent fall under?
Primary CPC classification G02B7/021. Mapped technology areas include Physics.
When was this patent published?
Publication date Tue Oct 19 2021 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).