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A device for demonstrating and testing the effects of anti-reflection treatments for ophthalmic lenses

An ophthalmic lens and anti-reflection technology, which is applied in optical instrument testing, optical performance testing, display cabinets, etc., can solve problems such as randomness, inaccuracy, and observation conditions, and achieve easy-to-use effects.

Active Publication Date: 2011-12-07
ESSILOR INT CIE GEN DOPTIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This method is not related to any protocol and thus relatively inaccurate and random as it depends on the observation conditions

Method used

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  • A device for demonstrating and testing the effects of anti-reflection treatments for ophthalmic lenses
  • A device for demonstrating and testing the effects of anti-reflection treatments for ophthalmic lenses
  • A device for demonstrating and testing the effects of anti-reflection treatments for ophthalmic lenses

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0017] figure 1 and 2 An apparatus 1 for demonstrating and testing the quality of anti-reflection treatments of ophthalmic lenses according to a first embodiment of the invention is shown.

[0018] The device 1 comprises a U-shaped part made of transparent plastic, having a first surface 1A for supporting an image 2 stuck on the first surface 1A, substantially perpendicular to this first surface 1A and constituting one of the U-shaped parts A second surface 1B of the branch supporting the mirror 3 and a third surface 1C for positioning at least one lens 4', 4" are located opposite said second surface 1B and constitute the second part of the U-shaped part. branch and have an arrangement for positioning said lens comprising at least one hole (here two holes 4A, 4B) provided in said third surface 1C and a hole located on said third surface 1C. Lay support rest 4C under holes 4A, 4B.

[0019] These holes 4A, 4B are circular and have a diameter of approximately 50 millimeters (m...

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PUM

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Abstract

The invention relates to a device for demonstrating and testing in a comparative manner the effectiveness of an anti-reflective treatment of an ophthalmic lens, comprising an image (2, 20) and a mirror (3, 30). According to the invention, the device comprises a component (1, 10) having a first face (1A, 10A) holding said image (2, 20), a second face (1B, 10B) holding said mirror (3, 30) and approximately perpendicular to said first face, and a third face (1C, 10C) for positioning at least one ophthalmic lens, located opposite said second face and having an arrangement for positioning said lens (4', 4'', 40) including at least one orifice (4A, 4B, 40A) arranged in said third face and opposite said mirror such that when a user looks through said orifice the resulting reflection of said image is displayed on said lens by means of said mirror (3, 30).

Description

technical field [0001] The invention relates to a device for demonstrating and comparatively testing the effect of anti-reflection treatments of ophthalmic lenses. Background technique [0002] There are devices for measuring the optical properties of anti-reflection treatments by means of complex spectrometer-type reflectance measurement systems. The optical property in question is the average reflectance R m , visual reflex R v , chromaticity C and color angle h . [0003] There is also a method for demonstrating the anti-reflection effect in which the performance of an anti-reflection treated spectacle lens is compared to that without such treatment by means of the right and left images of the right and left lenses worn by the wearer with spectacle frames Lenses, one of which is anti-reflection treated and the other is not anti-reflection treated. The reflection of the image is viewed by the wearer by looking at the central mirror, or by the observer. The wearer or ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47F11/10G01M11/02
CPCA47F7/021G01M11/0257
Inventor F·卡兰德里尼C·拿多尼C·福基耶尔
Owner ESSILOR INT CIE GEN DOPTIQUE