FR2209114A1 - X-ray image simulating spectacles - comprising two transparent lenses of thermoplastics matl. - Google Patents
X-ray image simulating spectacles - comprising two transparent lenses of thermoplastics matl.Info
- Publication number
- FR2209114A1 FR2209114A1 FR7243056A FR7243056A FR2209114A1 FR 2209114 A1 FR2209114 A1 FR 2209114A1 FR 7243056 A FR7243056 A FR 7243056A FR 7243056 A FR7243056 A FR 7243056A FR 2209114 A1 FR2209114 A1 FR 2209114A1
- Authority
- FR
- France
- Prior art keywords
- grooves
- lenses
- spectacles
- ray image
- wall
- 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.)
- Granted
Links
Classifications
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/06—Viewing or reading apparatus with moving picture effect
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
- G02C5/001—Constructions of non-optical parts specially adapted for particular purposes, not otherwise provided for or not fully classifiable according to technical characteristics, e.g. therapeutic glasses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- General Health & Medical Sciences (AREA)
- Lenses (AREA)
Abstract
Pair of spectacles has a pair of lenses made from e.g. polystyrene which include an X-ray image simulating device comprising linear, identical grooves provided in a planar surface of each lens. Each groove has first and second walls. The grooves of both lenses extend in a parallel manner and are transversely contiguous such that in two adjoining grooves in each of the lenses the first wall of one groove and the second wall of the other groove extend in common intersecting relation. Each first wall extends transversely of the planar surface of each lense, and each second wall is inclined at an acute angle =5 degrees. The grooves in one of the lenses extend transversely of the grooves in the other lens.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7243056A FR2209114A1 (en) | 1972-12-04 | 1972-12-04 | X-ray image simulating spectacles - comprising two transparent lenses of thermoplastics matl. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7243056A FR2209114A1 (en) | 1972-12-04 | 1972-12-04 | X-ray image simulating spectacles - comprising two transparent lenses of thermoplastics matl. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2209114A1 true FR2209114A1 (en) | 1974-06-28 |
FR2209114B1 FR2209114B1 (en) | 1977-01-14 |
Family
ID=9108154
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7243056A Granted FR2209114A1 (en) | 1972-12-04 | 1972-12-04 | X-ray image simulating spectacles - comprising two transparent lenses of thermoplastics matl. |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2209114A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0607856A1 (en) * | 1993-01-14 | 1994-07-27 | Lesko, Klaus Dieter | Visual aid for macular degeneration |
-
1972
- 1972-12-04 FR FR7243056A patent/FR2209114A1/en active Granted
Non-Patent Citations (1)
Title |
---|
NEANT * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0607856A1 (en) * | 1993-01-14 | 1994-07-27 | Lesko, Klaus Dieter | Visual aid for macular degeneration |
Also Published As
Publication number | Publication date |
---|---|
FR2209114B1 (en) | 1977-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |