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System and method for determining at least one feature of at least one lens mounted in a spectacle frame

A spectacle frame and lens technology, applied in the field of spectacles, can solve problems such as difficulty in identifying lenses, difficulty in measuring lenses and/or spectacle frames, and harsh operators.

Pending Publication Date: 2022-03-01
ESSILOR INT CIE GEN DOPTIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, these operations can be particularly demanding on the operator and difficulties can arise when measuring the profile or shape of lenses and / or spectacle frames
For rimless spectacles, operators using the software face difficulties in reliably identifying the contours of the lenses

Method used

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  • System and method for determining at least one feature of at least one lens mounted in a spectacle frame
  • System and method for determining at least one feature of at least one lens mounted in a spectacle frame
  • System and method for determining at least one feature of at least one lens mounted in a spectacle frame

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Embodiment Construction

[0055] Elements in the drawings are presented for simplicity and clarity only and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the figures may be exaggerated relative to other elements to help to improve understanding of embodiments of the present disclosure.

[0056] figure 1 A system according to one embodiment is shown, which is able to determine one or more characteristics of one or both lenses 2, 2' mounted in a spectacle frame 200. Each lens 2 , 2 ′ is mounted in a corresponding lens receiving position of the spectacle frame 200 .

[0057] According to an embodiment and as detailed below, the one or more characteristics that may be determined by the system include geometrical parameter(s), optical parameter(s) and / or fitting parameter(s). The fitting parameter(s) may include the interpupillary distance or the distance of the pupil relative to the optical or geometric center of the lens, or the distance of the pupil re...

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Abstract

A system for determining at least one characteristic of at least one lens (2) mounted in a spectacle frame (200). The system comprises a non-spot light pattern generation device (1) configured for generating a predefined non-spot light pattern (15) and arranged for reflecting the predefined non-spot light pattern on the at least one lens (2), an image acquisition device (3) arranged for capturing the predefined non-spot light pattern on the at least one lens (2), the invention relates to a spectacle frame (200) comprising at least one lens (2), an image acquisition device (4) configured for acquiring an image of the spectacle frame (200) comprising an image of a reflected non-spot light pattern (5), and a processing unit (4) configured for determining at least a contour of the at least one lens (2) in dependence on at least one characteristic of the image of the reflected non-spot light pattern (5). A corresponding method and computer program are also presented.

Description

technical field [0001] The present disclosure relates to the field of glasses. [0002] More specifically, the present disclosure relates to a system for determining at least one characteristic of at least one lens mounted in an eyeglass frame. The present disclosure further relates to a method and a computer program for said determination. Background technique [0003] When an individual needs spectacles, he usually goes to an optician where he can choose a spectacle frame. Frame set with unisex presentation lenses. The operator must take steps in relation to the neutral demo lens mounted in the spectacle frame to order ophthalmic lenses with features suitable for mounting said ophthalmic lens in the spectacle frame. The measured data obtained, such as profile and shape, are then used for reproduction purposes by machining the corresponding ophthalmic lenses with machines such as edgers. [0004] For this purpose, a system known as Visioffice (trademark) from Essilor is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C13/00
CPCG02C13/005G06T7/521G06T7/73G06T7/13G06T7/60G06T2207/10012G06T2207/30041G06T2207/30201
Inventor K·巴兰登牛笛凯
Owner ESSILOR INT CIE GEN DOPTIQUE
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