Optical Article Comprising an Antireflective Coating With a Low Reflection Both in the Ultraviolet Region and in the Visible Region
This invention relates to an ophthalmic lens with a low reflection both in the ultraviolet region and in the visible region, comprising a substrate provided on its rear main face with a multilayered antireflective coating (3-7 layers) comprising a stack of at least one layer with a high refractive i...
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| creator | DE AYGUAVIVES Francisco POPHILLAT Olivier CADO Hervé |
| description | This invention relates to an ophthalmic lens with a low reflection both in the ultraviolet region and in the visible region, comprising a substrate provided on its rear main face with a multilayered antireflective coating (3-7 layers) comprising a stack of at least one layer with a high refractive index and at least one layer with a low refractive index, having a mean reflection factor on the rear face in the visible region Rm lower than or equal to 1.15%, a mean light reflection factor on the rear face in the visible region Rv lower than or equal to 1%, a mean reflection factor RUV on the rear face between 280 nm and 380 nm, weighted by the function W(λ) defined in the ISO 13666:1998 standard, lower than 5%, for angles of incidence of 30° and 45°, the antireflective coating outer layer being a silica-based layer. The lens according to the invention does especially prevent the reflection of the UV radiation produced by light sources located behind the wearer. |
| format | Patent |
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The lens according to the invention does especially prevent the reflection of the UV radiation produced by light sources located behind the wearer.</description><language>eng</language><subject>CONTACT LENSES ; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS ; OPTICS ; PHYSICS ; SPECTACLES ; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES</subject><creationdate>2017</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170126&DB=EPODOC&CC=US&NR=2017023797A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170126&DB=EPODOC&CC=US&NR=2017023797A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>DE AYGUAVIVES Francisco</creatorcontrib><creatorcontrib>POPHILLAT Olivier</creatorcontrib><creatorcontrib>CADO Hervé</creatorcontrib><title>Optical Article Comprising an Antireflective Coating With a Low Reflection Both in the Ultraviolet Region and in the Visible Region</title><description>This invention relates to an ophthalmic lens with a low reflection both in the ultraviolet region and in the visible region, comprising a substrate provided on its rear main face with a multilayered antireflective coating (3-7 layers) comprising a stack of at least one layer with a high refractive index and at least one layer with a low refractive index, having a mean reflection factor on the rear face in the visible region Rm lower than or equal to 1.15%, a mean light reflection factor on the rear face in the visible region Rv lower than or equal to 1%, a mean reflection factor RUV on the rear face between 280 nm and 380 nm, weighted by the function W(λ) defined in the ISO 13666:1998 standard, lower than 5%, for angles of incidence of 30° and 45°, the antireflective coating outer layer being a silica-based layer. The lens according to the invention does especially prevent the reflection of the UV radiation produced by light sources located behind the wearer.</description><subject>CONTACT LENSES</subject><subject>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</subject><subject>OPTICS</subject><subject>PHYSICS</subject><subject>SPECTACLES</subject><subject>SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNzb0KwkAQBOA0FqK-w4K1kJ8iWMagWAiCGi3DGjfJwnl3XJb4AL64F4y91cB8AzMN3kcrXKGCzPlUBLl5Wscd6wZQQ6aFHdWKKuF-QJRBbiwtIBzMC06jGg0b41vWIC1BocRhz0aR-EkzMOrHT6_-4O7PvjIPJjWqjhZjzoLlbnvJ9yuypqTOYkWapCzOcRilYZyk6zSLkv9WH6ZcShk</recordid><startdate>20170126</startdate><enddate>20170126</enddate><creator>DE AYGUAVIVES Francisco</creator><creator>POPHILLAT Olivier</creator><creator>CADO Hervé</creator><scope>EVB</scope></search><sort><creationdate>20170126</creationdate><title>Optical Article Comprising an Antireflective Coating With a Low Reflection Both in the Ultraviolet Region and in the Visible Region</title><author>DE AYGUAVIVES Francisco ; POPHILLAT Olivier ; CADO Hervé</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_US2017023797A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2017</creationdate><topic>CONTACT LENSES</topic><topic>OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS</topic><topic>OPTICS</topic><topic>PHYSICS</topic><topic>SPECTACLES</topic><topic>SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES</topic><toplevel>online_resources</toplevel><creatorcontrib>DE AYGUAVIVES Francisco</creatorcontrib><creatorcontrib>POPHILLAT Olivier</creatorcontrib><creatorcontrib>CADO Hervé</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>DE AYGUAVIVES Francisco</au><au>POPHILLAT Olivier</au><au>CADO Hervé</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Optical Article Comprising an Antireflective Coating With a Low Reflection Both in the Ultraviolet Region and in the Visible Region</title><date>2017-01-26</date><risdate>2017</risdate><abstract>This invention relates to an ophthalmic lens with a low reflection both in the ultraviolet region and in the visible region, comprising a substrate provided on its rear main face with a multilayered antireflective coating (3-7 layers) comprising a stack of at least one layer with a high refractive index and at least one layer with a low refractive index, having a mean reflection factor on the rear face in the visible region Rm lower than or equal to 1.15%, a mean light reflection factor on the rear face in the visible region Rv lower than or equal to 1%, a mean reflection factor RUV on the rear face between 280 nm and 380 nm, weighted by the function W(λ) defined in the ISO 13666:1998 standard, lower than 5%, for angles of incidence of 30° and 45°, the antireflective coating outer layer being a silica-based layer. The lens according to the invention does especially prevent the reflection of the UV radiation produced by light sources located behind the wearer.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CONTACT LENSES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS SPECTACLES SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURESAS SPECTACLES |
| title | Optical Article Comprising an Antireflective Coating With a Low Reflection Both in the Ultraviolet Region and in the Visible Region |
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