Apparatus for measuring a lens frame configuration
US5594992A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 1995 |
| Grant date | Jan 21, 1997 |
| Priority date | — |
| Expiry date | Apr 20, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24B9/144
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An apparatus for measuring a lens frame configuration is provided which comprises an apparatus body provided with a measuring reference surface, a frame holder movably retained by the apparatus body and adapted to hold right and left lens frames of an eyeglass frame so as to rotate and incline a holding plane of the lens frame with respect to the reference surface, a rotating device for rotating and inclining the frame holder, a measuring portion for measuring coordinates of each point in a circumferential direction of a V-shaped groove of the lens frame with respect to the measuring reference surface, and an arithmetic circuit for calculating an inclination of the lens frame in the V-shaped groove with respect to the reference surface from a result obtained by the measuring portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.