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
Application number
FR7243056A
Other languages
French (fr)
Other versions
FR2209114B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7243056A priority Critical patent/FR2209114A1/en
Publication of FR2209114A1 publication Critical patent/FR2209114A1/en
Application granted granted Critical
Publication of FR2209114B1 publication Critical patent/FR2209114B1/fr
Granted legal-status Critical Current

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

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.
FR7243056A 1972-12-04 1972-12-04 X-ray image simulating spectacles - comprising two transparent lenses of thermoplastics matl. Granted FR2209114A1 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0607856A1 (en) * 1993-01-14 1994-07-27 Lesko, Klaus Dieter Visual aid for macular degeneration

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (1)

* Cited by examiner, † Cited by third party
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