GB686924A - Improvements in or relating to spectacle frames and spectacles - Google Patents
Improvements in or relating to spectacle frames and spectaclesInfo
- Publication number
- GB686924A GB686924A GB2265850A GB2265850A GB686924A GB 686924 A GB686924 A GB 686924A GB 2265850 A GB2265850 A GB 2265850A GB 2265850 A GB2265850 A GB 2265850A GB 686924 A GB686924 A GB 686924A
- Authority
- GB
- United Kingdom
- Prior art keywords
- side arm
- holder
- lens
- pivoted
- ball
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C9/00—Attaching auxiliary optical parts
- G02C9/02—Attaching auxiliary optical parts by hinging
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Health & Medical Sciences (AREA)
- Eyeglasses (AREA)
Abstract
686,924. Spectacle frames. CROOKES OPTICAL WORKS, Ltd., and HILLMAN, D. C. S. Nov. 19, 1951 [Sept. 14, 1950], No. 22658/50. Class 97 (i). A spectacle frame having a holder for an additional lens segment pivotally mounted on the frame so that the additional segment is capable of lying alongside a side arm or adjacent a fixed lens to form a bifocal lens system is characterised in that the holder for the lens segment is pivoted for movement about two axes, one parallel or substantially parallel to the side arm hinge axis and the other at right angles or substantially at right angles thereto. As shown, the holder 24 of the lens segment is carried by an arm 22 connected by a ball 21 and socket to a lug 20 on a bar 19 pivoted to a pin 13 to which are pivoted the plates 16 and 17 of the hinge connecting the temple arm 10 to the lens frame 12. By means of the ball and socket connection the holder 24 may be rotated through 180 degrees about a horizontal axis from the position shown in Fig. 2, and, by rotation of the bar 19 about the axis of the pin 13, be located in a suitably shaped recess in the side arm, which is preferably of the " library " type. A pin connection may be used instead of the ball and socket, and the bar 19 may be separately hinged to the side arm 10 or the side arm hinge plate 16.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2265850A GB686924A (en) | 1950-09-14 | 1950-09-14 | Improvements in or relating to spectacle frames and spectacles |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2265850A GB686924A (en) | 1950-09-14 | 1950-09-14 | Improvements in or relating to spectacle frames and spectacles |
Publications (1)
Publication Number | Publication Date |
---|---|
GB686924A true GB686924A (en) | 1953-02-04 |
Family
ID=10183000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2265850A Expired GB686924A (en) | 1950-09-14 | 1950-09-14 | Improvements in or relating to spectacle frames and spectacles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB686924A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770168A (en) * | 1953-10-05 | 1956-11-13 | Tesauro Nicholas | Supplemental lens-positioning means |
US4666266A (en) * | 1984-11-30 | 1987-05-19 | Morrison Robert J | Eyeglasses having lens storage means |
WO2012114362A1 (en) * | 2011-02-23 | 2012-08-30 | Piero Petroccione | Multifocal frames |
-
1950
- 1950-09-14 GB GB2265850A patent/GB686924A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2770168A (en) * | 1953-10-05 | 1956-11-13 | Tesauro Nicholas | Supplemental lens-positioning means |
US4666266A (en) * | 1984-11-30 | 1987-05-19 | Morrison Robert J | Eyeglasses having lens storage means |
WO2012114362A1 (en) * | 2011-02-23 | 2012-08-30 | Piero Petroccione | Multifocal frames |
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