EP 0235021 A3 19880224 - LENS GRINDING APPARATUS
Title (en)
LENS GRINDING APPARATUS
Publication
Application
Priority
JP 2767486 A 19860210
Abstract (en)
[origin: EP0235021A2] There is disclosed a lens grinding apparatus having a lens rotating shaft (15) on which a lens to be ground is mounted and a grinding wheel (21) for grinding the lens. The invention is characterized in that the lens grinding apparatus comprises outer diameter measuring means (17) for measuring the outer diameter of the grinding wheel, arithmetic means for calculating a wearout quantity of the grinding wheel based on a measurement made by the measuring means, adjusting means (24) for adjusting an intershaft distance between the lens rotating shaft and a grinding wheel rotating shaft, and control means for controlling the adjusting means based on the wearout quantity and performing a wearout correction.
IPC 1-7
IPC 8 full level
B24B 13/06 (2006.01); B24B 9/14 (2006.01); B24B 13/04 (2006.01); B24B 49/02 (2006.01); B24B 49/18 (2006.01)
CPC (source: EP)
B24B 9/148 (2013.01); B24B 49/183 (2013.01)
Citation (search report)
- [A] US 4286415 A 19810901 - LORETO WILFREDO P
- [A] DE 2934066 A1 19810409 - HAU MASCHINENFABRIK GMBH & CO [DE]
- [A] US 4499690 A 19850219 - KILB DONALD A [US], et al
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0235021 A2 19870902; EP 0235021 A3 19880224; EP 0235021 B1 19920923; DE 3781815 D1 19921029; DE 3781815 T2 19930325; JP H0632892 B2 19940502; JP S62188664 A 19870818
DOCDB simple family (application)
EP 87400291 A 19870209; DE 3781815 T 19870209; JP 2767486 A 19860210