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Filter for eye cone cells protection

A technology of cones and filters, used in glasses/goggles, optics, optical components, etc.

Active Publication Date: 2021-10-29
ESSILOR INT CIE GEN DOPTIQUE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Also, there is no method or solution that provides a filter that is specifically designed and suitable for filtering light for cone protection

Method used

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  • Filter for eye cone cells protection
  • Filter for eye cone cells protection
  • Filter for eye cone cells protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0103] Active and Passive Filters

[0104] As used herein, if an eye cone protection filter suppresses at least some transmission of a range of wavelengths while having little or no effect on the transmission of visible wavelengths outside that range (unless it is specifically configured for this purpose) , the eye cone protection filter selectively suppresses wavelengths in this range. The term "rejection rate" or "inhibition rate" or "degree of inhibition" or "filtration rate" refers to the percentage of incident light within one or more selected wavelength ranges that is prevented from being transmitted. In contrast, the term "transmittance" refers to the percentage of light that is actually transmitted. For example, a transmittance of 0% means that no light is transmitted through the filter, thus corresponding to a rejection of 100%, all light reaching the filter is either blocked, absorbed, diffused or reflected. The parameter "wavelength or bandwidth range" is define...

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Abstract

The invention relates to filter dedicated to protect eye cone cells and method associated. The eye cone cells protecting filter is intended to be applied to a transparent surface and to filter incident light for preventing eye cone cells of a user, from damages due to illumination at physiological light levels on the eye of said user, and having spectral characteristics to i) filter light wavelengths between 405 and 465 nanometers, and ii) transmit a filtered light reaching the eye cone cells and having a harmfulness on said eye cone cells under a predefined maximum threshold.

Description

technical field [0001] The present invention relates generally to the field of eye cone protection filters intended for application to transparent surfaces such as eyewear (eg sunglasses) to filter incident light. Embodiments of the invention relate to a method of determining a configuration for an eye cone protection filter intended to be applied to at least one transparent surface. Background technique [0002] The electromagnetic spectrum covers a large range of wavelengths, of which the wavelengths visible to the human eye are often referred to as the visible spectrum covering the range of 380nm to 780nm. Some wavelengths of the electromagnetic spectrum, including those of the visible spectrum, produce deleterious effects, while other wavelengths are known to have beneficial effects on the eye. Some wavelengths of the visible spectrum are also known to elicit a series of neuroendocrine, physiological and behavioral responses known as non-imaging (NIF) responses. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/10
CPCG02C7/10G02C7/101G02C7/102
Inventor M·玛丽S·皮考德V·弗拉多特J·萨赫勒T·维莱特C·巴劳C·埃里斯曼
Owner ESSILOR INT CIE GEN DOPTIQUE
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