Invention Grant
- Patent Title: Centering of an optical element using edge contact mounting
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Application No.: US16793957Application Date: 2020-02-18
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Publication No.: US11320623B2Publication Date: 2022-05-03
- Inventor: Maxime Savard , Frédéric Lamontagne
- Applicant: INSTITUT NATIONAL D'OPTIQUE
- Applicant Address: CA Quebec
- Assignee: INSTITUT NATIONAL D'OPTIQUE
- Current Assignee: INSTITUT NATIONAL D'OPTIQUE
- Current Assignee Address: CA Quebec
- Agency: Dinsmore & Shohl LLP
- Main IPC: G02B7/02
- IPC: G02B7/02

Abstract:
Optical assemblies are provided in which an optical element is centered in the cavity of a barrel. The optical element is secured between a seat in the cavity and a retaining ring. The retaining ring has ring threads complementary to the barrel threads. The retaining ring has an abutment surface engaging a peripheral mounting edge of the optical element along a circular edge contact line. In some embodiments, the abutment surface has a frustro-spherical profile having a radius of curvature selected in view of the thread angle to maintain a centering of the optical element even when the retaining ring is decentered in the cavity. In other variants, the abutment surface has a frustro-conical profile having an inclination angle with respect to the center axis of the cavity selected in view of the thread angle to maintain said centering.
Public/Granted literature
- US20200264402A1 CENTERING OF AN OPTICAL ELEMENT USING EDGE CONTACT MOUNTING Public/Granted day:2020-08-20
Information query
IPC分类:
G | 物理 |
G02 | 光学 |
G02B | 光学元件、系统或仪器 |
G02B7/00 | 光学元件的安装、调整装置或不漏光连接 |
G02B7/02 | .用于透镜 |