US3586448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for positioning a lens blank relative to a photograph of a wearer
Assignee: Soc Des Lunetiers Temkine & Cie
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Filing: 1970-05-08
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Granted: 1971-06-22
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Expires: 1990-05-08
Abstract
Abstract Device for adjusting the position of an optical lens on a suction cup for the direct transfer thereof to a grinding machine, as a function of the pupillary distance of the wearer and of the centerlines of the spectacle frame, which comprises a suction-cup carrier, a transparent plate having engraved thereon the perpendicular centerlines AA and BB of the spectacle frame which are coincident with the centerlines of the lens template, a photograph of the spectacle frame, positioned on said carrier and having printed thereon the pupillary axes, the optical lens having the optical centerlines to be brought into registration with the aforesaid centerlines, characterized in that it comprises means for moving said suction-cup carrier to the position of coincidence of its center with the point of intersection of the axes of the spectacle frame or a homologous point, means for bringing the optical center of the lens to a position of coincidence with the pupillary axis of the photographed eye or homologous point, other means carrying fixed crosslines corresponding with the axis of the suction-cup carrier and movable crosslines adapted to locate, between said points, the center of the pupil and the optical center of the lens.
Inventors
- 👤 Jacques Beasse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:41
CPC Classifications
G; G02; G02C; G02C13/00; G02C13/003; G02C13/005; B; B24; B24B; B24B13/00; B24B13/005; B24B13/0055; G01; G01M; G01M11/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
250 words
An apparatus cooperative with a photograph depicting indexing indicia representative of a pupillary center and a lens frame reference point for positioning an untrimmed lens relative to a lens holder comprising: means defining a first support for supporting thereon in an adjustable position a photograph depicting indexing indicia representative of a pupillary center and a lens frame reference point; a transparent indexing plate having indexing indicia thereon representative of a lens template reference point positionable over said photograph when same is on said first support to effect alignment of said indexing indicia representative of said lens template reference point with said indexing indicia representative of said lens frame reference point; means defining a second support for movably supporting an unTrimmed lens; a lens holder operable to releasably hold an untrimmed lens during a trimming operation cooperative with said second support to provide another indexing indicia representative of said lens template reference point; and optical means for simultaneously viewing in superposed relationship said first and second supports to sequentially effect optical alignment of both said indexing indicia representative of said lens template reference point, optical alignment of said indexing indicia representative of said lens frame reference point with said indexing indicia on said transparent indexing plate representative of said lens template reference point, and optical alignment of the optical center of said untrimmed lens with said indexing indicia representative of said pupillary center; whereby said untrimmed lens is correctly positioned with respect to said lens holder to undergo a trimming operation.
Claim 2
Independent Claim
250 words
An apparatus cooperative with a photograph depicting indexing indicia representative of a pupillary center and a lens frame reference point for positioning an untrimmed lens relative to a lens holder comprising: means defining a first support for supporting thereon in an adjustable position a photograph depicting indexing indicia representative of a pupillary center and a lens frame reference point; a transparent indexing plate having indexing indicia thereon representative of a lens template reference point positionable over said photograph when same is on said first support to effect alignment of said indexing indicia representative of said lens template reference point with said indexing indicia representative of said lens frame reference point; means defining a second support for movably supporting an unTrimmed lens; a lens holder operable to releasably hold an untrimmed lens during a trimming operation cooperative with said second support to provide another indexing indicia representative of said lens template reference point; and optical means for simultaneously viewing in superposed relationship said first and second supports to sequentially effect optical alignment of both said indexing indicia representative of said lens template reference point, optical alignment of said indexing indicia representative of said lens frame reference point with said indexing indicia on said transparent indexing plate representative of said lens template reference point, and optical alignment of the optical center of said untrimmed lens with said indexing indicia representative of said pupillary center; whereby said untrimmed lens is correctly positioned with respect to said lens holder to undergo a trimming operation.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1; wherein said lens holder includes a suction cup configured to releasably hold said untrimmed lens during a trimming operation.
Claim 4
Dependent Claim
21 words
An apparatus according to claim 2; further comprising means for effecting releasable engagement of said suction cup with said untrimmed lens.
Claim 5
Dependent Claim
33 words
An apparatus according to claim 2, wherein said second support includes therein means defining an opening shaped to releasably receive therein a portion of said suction cup thereby defining said another indexing indicia.
Claim 6
Dependent Claim
47 words
An apparatus according to claim 1; wherein said optical means comprises means for reflecting the images contained on said first and second supports along separate optical axes, and means positioned along said separate optical axes receptive of said reflected images for superposing same into a single image.
Claim 7
Dependent Claim
14 words
An apparatus according to claim 5; wherein said last-mentioned means comprises a mixing prism.
Claim 8
Dependent Claim
197 words
Method of positioning an untrimmed lens relative to a lens holder comprising: providing a transparent reference plate having an indexing indicia thereon representative of a lens template reference point; providing a lens holder capable of releasably holding an untrimmed lens during a trimming operation having markings thereon representative of said lens template reference point; simultaneously viewing in superposed relationship both said indexing indicia and said markings to effect positioning of said transparent reference plate in an aligned working position relative to said lens holder; providing a reference surface having indexing indicia thereon representative of both a pupillary center and a lens frame reference point; positioning said reference surface relative to said transparent reference plate to effect alignment of said indexing indicia representative of said frame reference point with said indexing indicia representative of said lens template reference point; providing an untrimmed lens in superposed relationship with said lens holder for movement relative thereto; and simultaneously viewing in superposed relationship said indexing indicia representative of said pupillary center and the optical center of said untrimmed lens to effect positioning of said untrimmed lens relative to lens holder in accordance with said indexing indicia contained on said reference surface.
Claim 9
Dependent Claim
197 words
Method of positioning an untrimmed lens relative to a lens holder comprising: providing a transparent reference plate having an indexing indicia thereon representative of a lens template reference point; providing a lens holder capable of releasably holding an untrimmed lens during a trimming operation having markings thereon representative of said lens template reference point; simultaneously viewing in superposed relationship both said indexing indicia and said markings to effect positioning of said transparent reference plate in an aligned working position relative to said lens holder; providing a reference surface having indexing indicia thereon representative of both a pupillary center and a lens frame reference point; positioning said reference surface relative to said transparent reference plate to effect alignment of said indexing indicia representative of said frame reference point with said indexing indicia representative of said lens template reference point; providing an untrimmed lens in superposed relationship with said lens holder for movement relative thereto; and simultaneously viewing in superposed relationship said indexing indicia representative of said pupillary center and the optical center of said untrimmed lens to effect positioning of said untrimmed lens relative to lens holder in accordance with said indexing indicia contained on said reference surface.
Claim 10
Dependent Claim
194 words
Method of positioning an untrimmed lens with respect to a lens holder comprising: providing a reference surface having indexing indicia thereon representative of both a pupillary center and a lens frame reference point; providing a transparent reference plate having an indexing indicia thereon representative of a lens template reference point: positioning said reference surface relative to said transparent reference plate to effect alignment of said indexing indicia representative of said lens frame reference point with said indexing indicia representative of said lens template reference point; positioning an untrimmed lens relative to the aligned transparent reference plate and reference surface to effect alignment of the optical center of said uNtrimmed lens with said indexing indicia representative of said pupillary center; providing a lens holder capable of releasably holding an untrimmed lens during a trimming operation having markings thereon representative of said lens template reference point; and positioning said lens holder relative to the aligned transparent reference plate, reference surface and untrimmed lens to effect alignment of said markings with said indexing indicia on said transparent reference plate representative of said lens template reference point in accordance with said indexing indicia contained on said reference surface.
Claim 11
Dependent Claim
194 words
Method of positioning an untrimmed lens with respect to a lens holder comprising: providing a reference surface having indexing indicia thereon representative of both a pupillary center and a lens frame reference point; providing a transparent reference plate having an indexing indicia thereon representative of a lens template reference point: positioning said reference surface relative to said transparent reference plate to effect alignment of said indexing indicia representative of said lens frame reference point with said indexing indicia representative of said lens template reference point; positioning an untrimmed lens relative to the aligned transparent reference plate and reference surface to effect alignment of the optical center of said uNtrimmed lens with said indexing indicia representative of said pupillary center; providing a lens holder capable of releasably holding an untrimmed lens during a trimming operation having markings thereon representative of said lens template reference point; and positioning said lens holder relative to the aligned transparent reference plate, reference surface and untrimmed lens to effect alignment of said markings with said indexing indicia on said transparent reference plate representative of said lens template reference point in accordance with said indexing indicia contained on said reference surface.
Claim 12
Independent Claim
295 words
A device in combination with a photograph having orthogonal axes representative of a spectacle mounting and a pupillary center for centering, orienting, and securing to a suction cup an optical lens for trimming by a grinding machine to fit in a given spectacle mounting intended for a predetermined user comprising: a casing constituting a camera lucida provided with a first support on which said photograph is laid, centered and oriented; a transparent plate having thereon two orthogonal lines and dimensioned to be laid upon said photograph so that its two lines are coincident with said orthogonal axes representative of the spectacle mounting which are shown by said photograph; a second support on which said optical lens having conventional reference marks thereon is dimensioned to be laid, centered and oriented; a suction-cup carrier movable into a predetermined and constant operative position in relation to said second support; a suction cup secured to said suction-cup carrier; means for securing said suction cup to said optical lens after the latter has been brought to a desired position on said second support; and optical means operative to permit simultaneous observance, in superposed relationship, said first and second supports to effect superposition of one point or line of one support with a point or line of the other support; thereby giving the possibility of firstly moving said transparent plate on said first support with a view to superpose the point of intersection of its two reference lines to the axis of said suction cup, the inserting said photograph under said plate in the above-defined relative position, subsequently moving said optical lens on said second support so that its optical center be superposed to said pupillary center reproduced on said photograph, and finally securing said suction cup to said optical lens.
Claim 13
Independent Claim
295 words
A device in combination with a photograph having orthogonal axes representative of a spectacle mounting and a pupillary center for centering, orienting, and securing to a suction cup an optical lens for trimming by a grinding machine to fit in a given spectacle mounting intended for a predetermined user comprising: a casing constituting a camera lucida provided with a first support on which said photograph is laid, centered and oriented; a transparent plate having thereon two orthogonal lines and dimensioned to be laid upon said photograph so that its two lines are coincident with said orthogonal axes representative of the spectacle mounting which are shown by said photograph; a second support on which said optical lens having conventional reference marks thereon is dimensioned to be laid, centered and oriented; a suction-cup carrier movable into a predetermined and constant operative position in relation to said second support; a suction cup secured to said suction-cup carrier; means for securing said suction cup to said optical lens after the latter has been brought to a desired position on said second support; and optical means operative to permit simultaneous observance, in superposed relationship, said first and second supports to effect superposition of one point or line of one support with a point or line of the other support; thereby giving the possibility of firstly moving said transparent plate on said first support with a view to superpose the point of intersection of its two reference lines to the axis of said suction cup, the inserting said photograph under said plate in the above-defined relative position, subsequently moving said optical lens on said second support so that its optical center be superposed to said pupillary center reproduced on said photograph, and finally securing said suction cup to said optical lens.
Claim 14
Dependent Claim
44 words
A device as set forth in claim 9; in which said optical means comprises a mixing prism cooperative with a pair of mirrors to superpose into a single beam the two beams orthogonal to the observation plane corresponding to said first and second supports.
Claim 15
Dependent Claim
40 words
A device as set forth in claim 9; wherein said suction cup carrier and the suction cup are mounted beneath said second support by sliding at right angles thereto; said second support having a window engageable by said suction cup.
Claim 16
Dependent Claim
39 words
A device as set forth in claim 11; wherein a counter suction cup may be brought in coaxial relationship to said suction cup and suction cup carrier for coacting therewith by rotating about an axis parallel to said axis.
Claim 17
Dependent Claim
60 words
Device as set forth in claim 9, characterized in that said suction cup carrier is movable about an axis parallel to its own axis in order to improve the visibility during the positioning operation, the exact coincidence between the suction cup and the intersection of said reference lines being provided by a lateral stop member engageable by a movable arm.
Claim 18
Dependent Claim
66 words
Device as set forth in claim 9, characterized in that said transparent plate is divided into a fixed plate and a movable plate in its plane, by translation, each plate comprising secondary reference lines parallel to the main reference lines, the intersection of said secondary reference lines being shifted in the plane by a same distance in relation to the intersection of said main reference lines.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |