Title:
LENS METER AND SPECTACLE MEASUREMENT DEVICE
Document Type and Number:
Japanese Patent JP2018009942
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a lens meter and spectacle measurement device, capable of acquiring PD taking deformation of spectacle frames into account.SOLUTION: A lens meter is provided comprising a measurement optical system for measuring optical properties of lenses and a display for displaying measurement results. The lens meter includes; holding means for holding a spectacle frame, which is brought into contact with at least one of left and right temples of a spectacle frame to change a distance between the left and right temples by moving the position of the at least one of the left and right temples; and PD measurement means for measuring PD of the spectacle frame held by the holding means.SELECTED DRAWING: Figure 1
Inventors:
TOCHIKUBO YUSHIRO
Application Number:
JP2016140705A
Publication Date:
January 18, 2018
Filing Date:
July 15, 2016
Export Citation:
Assignee:
NIDEK KK
International Classes:
G01M11/00; G02C13/00
Domestic Patent References:
| JPH0772038A | 1995-03-17 | |||
| JP2013134240A | 2013-07-08 | |||
| JP2009175717A | 2009-08-06 | |||
| JP2016161382A | 2016-09-05 | |||
| JP2015068976A | 2015-04-13 |
Foreign References:
| US5855074A | 1999-01-05 | |||
| US4212538A | 1980-07-15 |
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