Invention Grant
- Patent Title: Spectacle lens frame shape measuring apparatus
- Patent Title (中): 眼镜镜框形状测量仪
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Application No.: US12561011Application Date: 2009-09-16
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Publication No.: US08220168B2Publication Date: 2012-07-17
- Inventor: Kenji Miyashita
- Applicant: Kenji Miyashita
- Applicant Address: JP Itabashi-ku, Tokyo
- Assignee: Kabushiki Kaisha TOPCON
- Current Assignee: Kabushiki Kaisha TOPCON
- Current Assignee Address: JP Itabashi-ku, Tokyo
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: JP2008-235915 20080916
- Main IPC: G01B5/20
- IPC: G01B5/20 ; G01B21/20

Abstract:
A spectacle lens frame shape measuring apparatus includes a holding device including upper pins and lower pins respectively holding upper rims and lower rims of frames for a spectacle lens, the upper pins holding the frames at different positions in a right-left direction from the positions at which the lower pins hold the frames and being placed at a same height as the lower pins in a vertical direction, a probe brought into contact with lens fitting grooves of the frames held by the holding device, a swinging mechanism swinging the holding device around a predetermined virtual axis, and a calculation controller calculating an axial shift amount or angle of the frames held by the holding device on the basis of a carved angle of the frames and an inclination angle of any one of the upper and lower rims, and correcting a shape of the frames obtained by the probe in accordance with the calculated axial shift amount or angle.
Public/Granted literature
- US20100064533A1 SPECTACLE LENS FRAME SHAPE MEASURING APPARATUS Public/Granted day:2010-03-18
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