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A progressive ophthalmic lens

An ophthalmic lens, acuity technology, applied in glasses/protective glasses, glasses/goggles, instruments, etc., can solve problems such as reduced visual comfort for wearers

Active Publication Date: 2021-06-25
ESSILOR INT CIE GEN DOPTIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the transition zone can be used by the wearer to search for intermediate distances, the wearer's visual comfort may be reduced when using the transition zone of the progressive ophthalmic lens

Method used

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  • A progressive ophthalmic lens
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Examples

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Embodiment Construction

[0154] The present invention relates to a gradient eye lens, the gradient eyekess adapter, with a weaner under a given wearing condition, has a lower light having a lower light having a lower light having equal or equal to 1D and less than or equal to 4D, and satisfies a sensitivity performance indicator.

[0155] The gradient eye lens can be defined by the relative position of its geometry, especially the front surface and the rear surface, the front surface and the rear surface, and the refractive index of the gradient eye lens.

[0156] The gradient eyeglass is suitable for the wearer, considering the person's prescription to define the granular eye lens.

[0157] The wearing conditions should be understood as the position of the gradient eye lens with respect to the wearer's eye, for example by the front inclination angle, the cornea to the lens distance, the pupil and the cornea, the eye rotation center (CRE) to the pupil distance, CRE to the lens distance, As well as the pac...

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Abstract

A progressive ophthalmic lens adapted to a wearer in given wearing conditions having an addition and fulfilling an acuity performance criterion determined by: - defining a set of at least three different vision distances comprise at least a first vision distance greater than or equal to 4 m, a second vision distance greater than or equal to 0.6 m and smaller than or equal to 2 m and a third vision distance smaller than or equal to 0.5 m, each vision distance being associated with an acuity loss threshold value and an acuity area threshold value, providing an acuity model defining acuity loss as a function of lens power and resulting astigmatism, determining of each vision distance using the acuity model the area of gaze directions for which the acuity loss is below the associated acuity loss threshold value, the acuity performance criterion being fulfilled if for each vision distance of the set of at least three vision distances, the area of gaze directions for which the acuity loss is below the associated acuity loss threshold value is greater than or equal to the acuity area threshold value corresponding to said distance.

Description

Technical field [0001] The present invention relates to a gradient eye lens, the gradient eyekess adapter, with a weaner under a given wearing condition, has a lower light having a lower light having a lower light having equal or equal to 1D and less than or equal to 4D, and satisfies a sensitivity performance indicator. The present invention further relates to a method for determining whether a gradient eye lens satisfies a sensory indicator is implemented by a computer device, and a method of determining a gradient eyeglass by a computer device. [0002] The invention also relates to a computer program product comprising one or more stored instruction sequences, the one or more stored instruction sequences are accessible to the processor. Background technique [0003] Typically, the gradient eye lens is particularly suitable for remote views and is particularly suitable for viewing close views. The remote area provides the first refractive force to the wearer, and the wearer is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/06G02C7/02
CPCG02C7/028G02C7/066G02C2202/08
Inventor L·卡里克斯特S·弗里克
Owner ESSILOR INT CIE GEN DOPTIQUE
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