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Publication numberUS1483509 A
Publication typeGrant
Publication date12 Feb 1924
Filing date5 May 1921
Priority date5 May 1921
Publication numberUS 1483509 A, US 1483509A, US-A-1483509, US1483509 A, US1483509A
InventorsBugbee Lucian W
Original AssigneeFranklin Optical Company
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Process of making fused bifocal lenses
US 1483509 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

Feb, '12 mm. msww L; W. BUGBEE PROCESS MAKING FUSED BIFOCAL LENSES Fil ed May 5, 1921 T lia. 2 3

/ a I I Patented Feb. 12, was.

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v masses caress eer e-a.

LUCIAN W. BUGBEE, F INDIANAPOLIS, INDIANA, ASSIGNOR T0 FRANKLIN OPTICAL COMPANY, OF INDIANAPOLIS, INDIANA, A CGEPORATION 0F ENDIANA.

PROCESS OF MAKING FUSED BIFOCAL LENSES.

Application filed may 5,

To all whom it may concern:

Be it, knownthat I, LUCIAN W. Became, a citizen of the United States, and a resident of Indianapolis, county of Marion and State a of Indiana,'have invented a certain new and useful. Process of Making Fused Bifocal Lenses; and I do hereby declare that the following is a full, clear, and exact description thereof, reference beinghad to the acl0 companying drawings in which like numerals refer to like parts.

Thecbject of this invention is to make a fused bifocal or Kryptok lens or blank in which the reading segment varies in charl acter from its center to its circumference.

to the eye of the user of the lens, or with.

the colors of the various portions of the lens graduated so as to make the lens look well and be easy to the eye of the user.

80 The full nature of the invention will be understood from the accompanying drawings and the following description and claims:

In the drawings, F ig.- 1 is a plan view of a fused bifocal blank with the outline of the finished lens indicated by a dotted line.

Fig. 2 is a plan view of such a blank with the flint glass insert in the recess of the main portion of the lens shown in its posi- 'tion and condition when first placed in said I recess. Fig. 3 is the same after the partitions have been removed from-the recess.

Fig.4 is a central section of Fig. 2. Fig.

5 is a central section of Fig. 3. Fig. (5 is the same as Fig. 3 after fusing. F lg. 7

shows a lens after it is ground and polished.

The process consists in providing the usual crown glass main portion 10 of a lens of this type'with a recess 11 made in any so desired Way, but preferably with a wall or shoulder 12 at the margin of said recess.

Then there is placed in said recess a pluralit of annular or ring-like partition ban s 13 and 14fconcentric to said recess As here shown there are two of said rings 1921. Serial No. 467,141.

used which divide thespace in said recess into three concentric zones and of substantially the same width.

Then different varieties or qualities of flint glass or glass of a higher index of refraction than the main portion of the lens are made or obtained. The selection of this flint glass should vary gradually in index of refraction from a relatively low index to as high an index as desired. The different qualitiesof flint glass are separately broken into small partiolesand each quantity of particles is separately formed in the nodules, preferably ,by revolving them in a container in which they grind the sharp in edges away and leave rounded nodules. Then the dust and small irregular particles are sifted out tibm among the nodules.

The nodules of the flint glass having the highest index of refraction are placed in the center band or ring and those of the glass having the next lower index of refraction are placed in the middle band or ring, and those of a still lower index are placed in the recess surrounding the outer 50 ring or band. This forms three zones instead of two and the nodules are heaped up to a level higher than the main body of the lens, as shown in Fig; 4.

The next step in the process is to remove the rings or bands, which, by the way, are made of metal or any suitable material, and that leaves a mass of nodules substantially as shown in Figs. 3 and 5. The same then is subjected to sufiicientheat to fuse the nodules of flint glass together and fill the recess and secure the same to the crown glass portion of the lens, as shown in Fig. 6. After that the lens is ground and polished, as shown in Fig. 7. While piano lens blanks are shown in the drawings, the invention is not limited to any particular form of lens.

The invention cla med is:

1. In the process of making fused bifocal lenses. placing upon the main portion of the 100 lens glass particles arranged in concentric zones differing in their indices of refraction, and then fusing the same to the main portion of the lens. 7

*2. The process of making fused bifocal ion lenses, which process consists in forming the main portion of the lens with a recess 'for the reading seg'ine'nt, placing in saidrecess concentric zonesmt nodules of glass having diflerent indices of refraction, sub- 2.30

nodules of portion of the lens, and grinding and polishing the same.

jecting the same to heat for fusing the glass together and to the main 3. The process of making fu sedbifocel lenses, which process consiststo receive the reading segment, placing'in said recess concentric partition hands, lea-vmg annular chambers in and surrounding said bands. filling said chambers, with -the main portion of the lens with a recess to receive a reading segment, placing in said reading segment concentric partition hands which leave chambers in and. around said bands. filling said chambers with nodules of glass of a higher index of refraction-than the main portion of the lens and with the indices 'of said groups of nodules diminishing from in forming. the main portion of the lens with a r'ecess :neeeasoe the center tothe main portion of the. lens, removing said partition bands, fusing said glass nodules together into the main o'rtion of the lens, and-grinding and polishin the lens. t I

5. The process of making fused bifocal lenses, whichYprocess consists in forming the main portion of the lens with a recess to receive the reading segment, placing in said recess concentric partition bands, leaving chambers in and'around said bands, crushing; different bodies of. glass having a higher index of refraction than the main portion ofthe lens into particles, treating said particles to round them into nodules, placing in each of said chambers nodules of a single index 'and'with the indices of the series of chambers diminishingfrom the center to the main portionof the lens, re-

moving said partition bands, fusingsaid nodules together and to the main portion of the lens, and grindin; and polishing the same."-

.In witness whercofiI havehereunt'o afiixed vmy signature.

LUGI'AN W. humane.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4073579 *9 Jun 197614 Feb 1978American Optical CorporationOphthalmic lens with locally variable index of refraction and method of making same
US5166711 *27 Jun 199024 Nov 1992Valdemar PortneyMultifocal ophthalmic lens
US5166712 *16 Jan 199024 Nov 1992Valdemar PortneyMultifocal ophthalmic lens
US5225858 *18 Jun 19916 Jul 1993Valdemar PortneyMultifocal ophthalmic lens
US5270744 *26 Aug 199214 Dec 1993Valdemar PortneyMultifocal ophthalmic lens
US5521656 *16 Sep 199328 May 1996Portney; ValdemarMethod of making an ophthalmic lens
US5657108 *26 Jan 199612 Aug 1997Portney; ValdemarMultifocal ophthalmic lens
US5702440 *26 Jan 199630 Dec 1997AllerganMultifocal ophthalmic lens for dim-lighting conditions
US5864378 *21 May 199626 Jan 1999AllerganEnhanced monofocal IOL or contact lens
US5877839 *5 Mar 19972 Mar 1999Portney; ValdemarMultifocal ophthalmic lens
US5919229 *30 Jun 19976 Jul 1999AllerganMultifocal opthalmic lens
US6024447 *27 Jan 199815 Feb 2000AllerganEnhanced monofocal ophthalmic lens
US6126286 *29 Apr 19993 Oct 2000AllerganEnhanced monofocal ophthalmic lens
US61866255 Nov 199813 Feb 2001Valdemar PortneyMultifocal ophthalmic lens
US62100054 Feb 19993 Apr 2001Valdemar PortneyMultifocal ophthalmic lens with reduced halo size
US622110528 Dec 199824 Apr 2001AllerganMultifocal ophthalmic lens
US623160310 Nov 199815 May 2001Allergan Sales, Inc.Accommodating multifocal intraocular lens
US640649422 Mar 200018 Jun 2002Allergan Sales, Inc.Moveable intraocular lens
US640934027 Nov 200025 Jun 2002Valdemar PortneyMultifocal ophthalmic lens
US643568111 Jan 200120 Aug 2002Valdemar PortneyMultifocal ophthalmic lens with reduced halo size
US650327630 Mar 20017 Jan 2003Advanced Medical OpticsAccommodating multifocal intraocular lens
US652738922 Mar 20024 Mar 2003Advanced Medical Optics, Inc.Multifocal ophthalmic lens
US65373173 May 200025 Mar 2003Advanced Medical Optics, Inc.Binocular lens systems
US65478223 May 200015 Apr 2003Advanced Medical Optics, Inc.Opthalmic lens systems
US65513549 Mar 200022 Apr 2003Advanced Medical Optics, Inc.Accommodating intraocular lens
US65548593 May 200029 Apr 2003Advanced Medical Optics, Inc.Accommodating, reduced ADD power multifocal intraocular lenses
US655799814 Jun 20026 May 2003Advanced Medical Optics, Inc.Multifocal ophthalmic lens with reduced halo size
US657601126 Feb 200110 Jun 2003Advanced Medical Optics, Inc.Multifocal ophthalmic lens
US657601228 Mar 200110 Jun 2003Advanced Medical Optics, Inc.Binocular lens systems
US65993177 Sep 200029 Jul 2003Advanced Medical Optics, Inc.Intraocular lens with a translational zone
US66166923 Sep 19999 Sep 2003Advanced Medical Optics, Inc.Intraocular lens combinations
US663830515 May 200128 Oct 2003Advanced Medical Optics, Inc.Monofocal intraocular lens convertible to multifocal intraocular lens
US66452467 Sep 200011 Nov 2003Advanced Medical Optics, Inc.Intraocular lens with surrounded lens zone
US66600352 Aug 20009 Dec 2003Advanced Medical Optics, Inc.Accommodating intraocular lens with suspension structure
US679023230 Apr 199914 Sep 2004Advanced Medical Optics, Inc.Multifocal phakic intraocular lens
US681443927 Jan 20039 Nov 2004Valdemar PortneyMultifocal ophthalmic lens
US682456318 Feb 200330 Nov 2004Advanced Medical Optics, Inc.Binocular lens systems
US697203326 Aug 20026 Dec 2005Advanced Medical Optics, Inc.Accommodating intraocular lens assembly with multi-functional capsular bag ring
US702578314 Jan 200311 Apr 2006Advanced Medical Optics, Inc.Accommodating intraocular lens with integral capsular bag ring
US715075912 Sep 200319 Dec 2006Advanced Medical Optics, Inc.Multi-mechanistic accommodating intraocular lenses
US732624614 Jan 20035 Feb 2008Advanced Medical Optics, Inc.Accommodating intraocular lens with elongated suspension structure
US771329929 Dec 200611 May 2010Abbott Medical Optics Inc.Haptic for accommodating intraocular lens
US776306928 Dec 200527 Jul 2010Abbott Medical Optics Inc.Accommodating intraocular lens with outer support structure
US77807295 Oct 200424 Aug 2010Visiogen, Inc.Intraocular lens
US787143721 Dec 200718 Jan 2011Amo Groningen B.V.Accommodating intraocular lenses and associated systems, frames, and methods
US802582319 Apr 200627 Sep 2011Visiogen, Inc.Single-piece accommodating intraocular lens system
US803410828 Mar 200811 Oct 2011Abbott Medical Optics Inc.Intraocular lens having a haptic that includes a cap
US804815628 Dec 20071 Nov 2011Abbott Medical Optics Inc.Multifocal accommodating intraocular lens
US80527525 Aug 20038 Nov 2011Abbott Medical Optics Inc.Capsular intraocular lens implant having a refractive liquid therein
US80623611 Aug 200522 Nov 2011Visiogen, Inc.Accommodating intraocular lens system with aberration-enhanced performance
US818253114 Jan 201122 May 2012Amo Groningen B.V.Accommodating intraocular lenses and associated systems, frames, and methods
US818732519 Apr 200629 May 2012Visiogen, Inc.Materials for use in accommodating intraocular lens system
US824667923 Aug 201021 Aug 2012Visiogen, Inc.Intraocular lens
US834321621 Jul 20101 Jan 2013Abbott Medical Optics Inc.Accommodating intraocular lens with outer support structure
US842559712 Nov 200923 Apr 2013Abbott Medical Optics Inc.Accommodating intraocular lenses
US846554423 Sep 201118 Jun 2013Abbott Medical Optics Inc.Accommodating intraocular lens
US849670118 May 201230 Jul 2013Amo Groningen B.V.Accommodating intraocular lenses and associated systems, frames, and methods
US854555623 Sep 20111 Oct 2013Abbott Medical Optics Inc.Capsular intraocular lens implant
US85857584 Feb 201019 Nov 2013Abbott Medical Optics Inc.Accommodating intraocular lenses
US881493423 Sep 201126 Aug 2014Abbott Medical Optics Inc.Multifocal accommodating intraocular lens
US900528317 Aug 201214 Apr 2015Visiogen Inc.Intraocular lens
US901153215 Jul 201321 Apr 2015Abbott Medical Optics Inc.Accommodating intraocular lenses
US90397602 Oct 201226 May 2015Abbott Medical Optics Inc.Pre-stressed haptic for accommodating intraocular lens
US91987527 Jul 20061 Dec 2015Abbott Medical Optics Inc.Intraocular lens implant having posterior bendable optic
US927183016 Feb 20101 Mar 2016Abbott Medical Optics Inc.Accommodating intraocular lens and method of manufacture thereof
US94210891 Jul 201123 Aug 2016Visiogen, Inc.Intraocular lens with post-implantation adjustment capabilities
US950456021 Dec 201229 Nov 2016Abbott Medical Optics Inc.Accommodating intraocular lens with outer support structure
US960370321 Dec 201228 Mar 2017Abbott Medical Optics Inc.Intraocular lens and methods for providing accommodative vision
US963621330 Sep 20052 May 2017Abbott Medical Optics Inc.Deformable intraocular lenses and lens systems
US981457021 Jan 201414 Nov 2017Abbott Medical Optics Inc.Ophthalmic lens combinations
US20030060881 *4 Sep 200227 Mar 2003Advanced Medical Optics, Inc.Intraocular lens combinations
US20030109925 *23 Dec 200212 Jun 2003Allergan Sales, Inc.Accommodating intraocular lens
US20030135272 *14 Jan 200317 Jul 2003Advanced Medical Optics, Inc.Accommodating intraocular lens with integral capsular bag ring
US20030156248 *27 Jan 200321 Aug 2003Valdemar PortneyMultifocal ophthalmic lens
US20030158599 *14 Jan 200321 Aug 2003Advanced Medical Optics, Inc.Accommodating intraocular lens with elongated suspension structure
US20040039446 *26 Aug 200226 Feb 2004Advanced Medical Optics, Inc.Accommodating intraocular lens assembly with multi-functional capsular bag ring
US20040082993 *25 Oct 200229 Apr 2004Randall WoodsCapsular intraocular lens implant having a refractive liquid therein
US20060111776 *9 Jan 200625 May 2006Glick Robert EIntraocular lens combinations
US20060238702 *10 Jul 200626 Oct 2006Advanced Medical Optics, Inc.Ophthalmic lens combinations
US20060259139 *19 Apr 200616 Nov 2006Gholam-Reza Zadno-AziziAccommodating intraocular lens system
US20060271187 *19 Apr 200630 Nov 2006Gholam-Reza Zadno-AziziMaterials for use in accommodating intraocular lens system
US20070043437 *20 Oct 200622 Feb 2007Advanced Medical Optics, Inc.Multi-mechanistic accommodating intraocular lenses
US20070050025 *19 Apr 20061 Mar 2007Nguyen Tuan AHydraulic configuration for intraocular lens system
US20070108643 *19 Apr 200617 May 2007Gholam-Reza Zadno-AziziSingle-piece accommodating intraocular lens system
US20080161913 *29 Dec 20063 Jul 2008Advanced Medical Optics, Inc.Haptic for accommodating intraocular lens
US20080161914 *29 Dec 20063 Jul 2008Advanced Medical Optics, Inc.Pre-stressed haptic for accommodating intraocular lens
US20090228101 *7 Jul 200810 Sep 2009Visiogen, Inc.Intraocular lens with post-implantation adjustment capabilities
US20090248152 *28 Mar 20081 Oct 2009Advanced Medical Optics, Inc.Intraocular lens having a haptic that includes a cap
US20100057203 *12 Nov 20094 Mar 2010Abbott Medical Optics Inc.Accommodating intraocular lenses
US20100324673 *23 Aug 201023 Dec 2010Visiogen, Inc.Intraocular lens
US20110035001 *4 Feb 201010 Feb 2011Abbott Medical Optics Inc.Accommodating intraocular lenses
US20110054602 *21 Jul 20103 Mar 2011Abbott Medical Optics Inc.Accommodating intraocular lens with outer support structure
US20110112638 *14 Jan 201112 May 2011Amo Groningen BvAccommodating intraocular lenses and associated systems, frames, and methods
Classifications
U.S. Classification65/39, 65/37, 65/17.6
International ClassificationC03B23/22, C03B23/00
Cooperative ClassificationC03B23/22
European ClassificationC03B23/22