Title:
MOUNT TABLE FOR LENS TO BE CHECKED AND LENS CHECKER
Document Type and Number:
WIPO Patent Application WO/2021/059439
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a mount table for a lens to be checked that makes it possible to reduce the size of a lens checker for observing a hidden mark engraved on the peripheral edge of the lens to be checked. The mount table for a lens to be checked for a lens checker according to the present invention includes a hollow cylindrical body (3b), a transparent member (3a) for mounting the lens to be checked, and condenser lenses (4a, 4b, 4c), wherein the transparent member (3a) for mounting the lens to be checked is disposed on the top of the hollow cylindrical body (3b), the diameter of the condenser lenses (4a, 4b, 4c) is smaller than the inner diameter of the hollow cylindrical body (3b), the condenser lenses (4a, 4b, 4c) are disposed so as to be movable in the horizontal direction inside the hollow cylindrical body (3b), and by the horizontal movement of the condenser lenses (4a, 4b, 4c), the irradiation position of the transmitted light with respect to the lens to be checked can be moved to the peripheral edge of the lens to be checked.
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Inventors:
KOIDE TAMAKI (JP)
Application Number:
PCT/JP2019/037904
Publication Date:
April 01, 2021
Filing Date:
September 26, 2019
Export Citation:
Assignee:
REXXAM CO LTD (JP)
International Classes:
G01M11/02; G01M11/00; G02C13/00
Domestic Patent References:
| WO1999041582A1 | 1999-08-19 |
Foreign References:
| JP6564153B1 | 2019-08-21 | |||
| JPH02173544A | 1990-07-05 | |||
| US20150002656A1 | 2015-01-01 |
Attorney, Agent or Firm:
TSUJIMARU Koichiro et al. (JP)
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