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Patent Searching and Data


Title:
GLASSES LENS PROCESSING APPARATUS AND METHOD WHICH USE HALL SENSOR
Document Type and Number:
WIPO Patent Application WO/2019/066208
Kind Code:
A1
Abstract:
Discloses are a glasses lens processing apparatus and method for determining whether lens processing is completed by using a hall sensor during the processing of glasses lens. The glasses lens processing apparatus comprises: a grinding wheel mounting part (22) on which a grinding wheel (20) for grinding a lens is mounted, and of which the position changes according to a target grinding depth for the lens; a carriage (12), which moves the lens such that the lens comes in contact with the grinding wheel (20), and makes contact with the grinding wheel mounting part (22) when the lens, having made contact with the grinding wheel (20), is ground to the target grinding depth; and a hall sensor detecting part (30) for detecting whether the grinding wheel mounting part (22) and the carriage (12) make contact with each other, wherein the hall sensor detecting part (30) includes a magnet (32) and a hall sensor (34) for detecting the intensity of a magnetic field generated by the magnet (32), the magnet (32) is mounted on one of the carriage (12) and the grinding wheel mounting part (22) and the hall sensor (34) is mounted on the other, and when an output value of the hall sensor (34) is A in a state in which the grinding wheel mounting part (22) and the carriage (12) make contact with each other, and the output value of the hall sensor (34) is greater or less than A within a tolerance range, the grinding wheel mounting part (22) and the carriage (12) are determined as being spaced apart.

Inventors:
HA SEUNG SUK (KR)
GWON JAE EUI (KR)
Application Number:
PCT/KR2018/007307
Publication Date:
April 04, 2019
Filing Date:
June 27, 2018
Export Citation:
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Assignee:
HUVITZ CO LTD (KR)
International Classes:
B24B9/14; B24B49/00
Foreign References:
KR20060124156A2006-12-05
JP2005254353A2005-09-22
JPH08323600A1996-12-10
US5181344A1993-01-26
JPH11198013A1999-07-27
KR100645779B12006-11-14
Other References:
See also references of EP 3670075A4
Attorney, Agent or Firm:
SHINWOO PATENT & LAW FIRM (KR)
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