Preformed ophthalmic lens base block with textured surface

Details Preformed ophthalmic lens base block with textured surface Preformed ophthalmic lens base block with textured surface

1997-09-03

2000-10-03

Rose, Robert A.

Abrading

Work holder

Lens or prism

451 41, 451364, 451384, 451389, 451390, 451398, 451460, B24B 4106

Patent

active

061265284

ABSTRACT:
The present invention provides novel preformed base blocks that may be used with thermoplastic ophthalmic lens blocking compositions. The preformed base block has a rear portion that is sized and adapted to fit the chuck of a lens processing machine and a front portion that has a textured front surface and preferably a negatively tapered peripheral edge. The front portion is adapted to mechanically retain the thermoplastic blocking composition to form a lens block against a lens blank.

REFERENCES:
patent: Re24906 (1960-12-01), Ulrich
patent: 3382202 (1968-05-01), Forrester et al.
patent: 3468366 (1969-09-01), Suddarth
patent: 3512310 (1970-05-01), Rudd et al.
patent: 3651014 (1972-03-01), Witsiepe
patent: 3786116 (1974-01-01), Milkovich et al.
patent: 3911185 (1975-10-01), Wright, Jr.
patent: 3914489 (1975-10-01), Smedberg
patent: 3926878 (1975-12-01), Shimizu et al.
patent: 3944695 (1976-03-01), Kosaka et al.
patent: 3996701 (1976-12-01), Ramirez et al.
patent: 4025694 (1977-05-01), Pletcher
patent: 4059715 (1977-11-01), Pletcher
patent: 4066600 (1978-01-01), Pletcher et al.
patent: 4173506 (1979-11-01), Pletcher
patent: 4182829 (1980-01-01), Walkowiak et al.
patent: 4235761 (1980-11-01), Koenig
patent: 4280939 (1981-07-01), Johnson
patent: 4287013 (1981-09-01), Ronning
patent: 4327013 (1982-04-01), Peters
patent: 4352749 (1982-10-01), Nakabayashi et al.
patent: 4361538 (1982-11-01), Dicoi et al.
patent: 4404299 (1983-09-01), Decroix
patent: 4430479 (1984-02-01), Merton et al.
patent: 4552906 (1985-11-01), Podszun et al.
patent: 4569342 (1986-02-01), von Nostitz
patent: 4659786 (1987-04-01), Kawakami et al.
patent: 4678836 (1987-07-01), McKinney et al.
patent: 4737559 (1988-04-01), Kellen et al.
patent: 4740245 (1988-04-01), Futami et al.
patent: 4768951 (1988-09-01), Abiru et al.
patent: 4833179 (1989-05-01), Young et al.
patent: 4847137 (1989-07-01), Kellen et al.
patent: 4952650 (1990-08-01), Young et al.
patent: 5026278 (1991-06-01), Oxman et al.
patent: 5040976 (1991-08-01), Ubel, III et al.
patent: 5066231 (1991-11-01), Oxman et al.
patent: 5096969 (1992-03-01), Payne et al.
patent: 5183705 (1993-02-01), Birkholz et al.
patent: 5194500 (1993-03-01), Chin et al.
patent: 5326413 (1994-07-01), Esemplare et al.
patent: 5403188 (1995-04-01), Oxman et al.
patent: 5415544 (1995-05-01), Oxman et al.
patent: 5505654 (1996-04-01), Wood et al.
patent: 5520568 (1996-05-01), Craighead et al.
patent: 5721644 (1998-02-01), Murray et al.
Gerber Optical, Inc. product literature, copyright Nov. 17, 1993.
Fast Grind.RTM. product literature, Super Systems, copyright unknown.
Advanced Blocking System product literature, Optical Works Corp., copyright unknown (2 sheets).
International Search Report for PCT/US/98/00803.
International Search Report for PCT/US/98/03715.
"Step One: Your First Step in Surface Preparation", Lab Talk, Jan./Feb. 1994, pp. 6, 8, 18.

Affiliated with

Also associated with

Rating

Preformed ophthalmic lens base block with textured surface does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Preformed ophthalmic lens base block with textured surface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Preformed ophthalmic lens base block with textured surface will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-189752