US Patent No: 5,577,950

Number of patents in Portfolio can not be more than 2000

Conformal tool operating apparatus and process for an ophthalmic lens finer/polisher

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Abstract

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A tool for fining/polishing an opthalmic lens has a spindle and a pliant casing containing a conformable filler connected to the spindle for rotation therewith. A pliant pad adhered to the casing has a plurality of slots extending from its perimeter toward its center defining a plurality of fingers which are contoured to the surface of the lens by the filler. Preferably, the lens is rotated about a vertical fixed axis substantially transverse to the lens and the tool is rotated about a fixed axis intersecting the lens and substantially normal to a surface of the lens to be fined/polished with the tool disposed above the lens. The axis of the horizontal displacement of the tool can be selectively varied in relation to the lens axis. The angular disposition of the tool axis in relation to the lens axis can be selectively varied. The radial displacement of the tool in relation to the lens along the tool axis can be selectively varied to bring the pad into and out of abutment with the surface of the lens and to vary the pressure exerted on surface of the lens by the tool.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
COBURN OPTICAL INDUSTRIES, INC.TULSA, OK60
COBURN TECHNOLOGIES, INC.S WINDSOR, CT65

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kulan, Stephen Muskogee, OK 4 42
Smith, Kenneth L White Bear Lake, MN 179 2201

Cited Art Landscape

Patent Info (Count) # Cites Year
 
FERRO CORPORATION (1)
4,733,502 Method for grinding and polishing lenses on same machine 38 1986
 
J & S Wylde, Ltd. (1)
4,962,618 Lens lapping pad 10 1990
 
Minnesota Mining and Manufacturing Company (1)
4,274,232 Friction grip pad 37 1978
 
OLYMPUS OPTICAL CO., LTD. (1)
5,024,024 Grinding and finishing apparatus and method 6 1989
 
Other [Check patent profile for assignment information] (1)
5,205,083 Method and apparatus for polishing optical lenses 10 1991

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
CARL ZEISS VISION GMBH (2)
7,338,346 Method and apparatus for producing optical glasses 1 2006
8,011,996 Polishing head for a polishing machine 0 2007
 
COBURN TECHNOLOGIES, INC. (2)
5,662,518 Pneumatically assisted unidirectional conformal tool 12 1996
5,928,063 Pneumatically assisted unidirectional arcuate diaphragm conformal tool 1 1997
 
HOYA LENS MANUFACTURING PHILIPPINES INC. (2)
6,945,849 Polishing method and polishing device 2 2003
7,448,942 Grinding method 2 2004
 
NIDEK CO., LTD. (2)
7,108,590 Draining device and lens processing system having the same 0 2003
7,255,634 Draining device and lens processing system having the same 0 2006
 
Opto Tech GmbH (2)
5,951,376 Procedure of and device for processing optical lenses 8 1998
6,383,061 Procedure of and device for processing optical lenses 9 1999
 
ACCRETECH USA, INC. (1)
5,679,060 Wafer grinding machine 56 1995
 
GERBER COBURN OPTICAL, INC. (1)
6,527,632 Lap having a layer conformable to curvatures of optical surfaces on lenses and a method for finishing optical surfaces 6 1999
 
MITUTOYO CORPORATION (1)
6,075,558 Auto-focus device 4 1997
 
NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO (1)
6,159,078 Method and device for shaping a rotationally-symmetrical surface 0 1998
 
Wernicke & Co. GmbH (1)
5,934,972 NC grinding process for the circumferential edge and top facet of an ophthalmic lens 5 1996