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Apparatus for conforming a planar film on an optical lens, method for functionalizing an optical lens by means of said apparatus, the optical lens so-obtained

A technology for optical lenses and flat films, applied to a device for forming flat films on optical lenses, which can solve the problems of repeated reproducibility, limited use conditions, and difficulties in optical lenses

Active Publication Date: 2008-04-02
ESSILOR INT CIE GEN DOPTIQUE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, their reproducibility and conditions of use are rather limited, and in fact it is difficult to functionalize optical lenses with concave surfaces or to use these devices on diaphragms with low expansion properties.

Method used

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  • Apparatus for conforming a planar film on an optical lens, method for functionalizing an optical lens by means of said apparatus, the optical lens so-obtained
  • Apparatus for conforming a planar film on an optical lens, method for functionalizing an optical lens by means of said apparatus, the optical lens so-obtained
  • Apparatus for conforming a planar film on an optical lens, method for functionalizing an optical lens by means of said apparatus, the optical lens so-obtained

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0154] Example 1: Cold "UV embossing (molding)" in ophthalmic lenses using a commercial film Anti-reflection microstructures are implemented on the convex surface of the sheet,-enabled devices containing equipment capable of controlling the A vacuum device that translates the piston.

[0155] A commercial acrylic coating (SHC 3100-LTI) with a thickness of 3 microns (μm) was deposited by spin coating onto the convex surface of the lens having a radius of curvature of 120 mm and a diameter of 65 mm.

[0156] The optical lens 20 is placed convex side up on the lens carrier 7 in the module 1, the module being sealed by a planar flexible membrane 30 supported in the membrane carrier 8, said flexible membrane being The PET (polyethylene terephthalate) film is also functionalized on its inner side by using a microstructured coating. The membrane was realized by embossing, the total thickness of the membrane (PET+microstructured coating (functionalization)) was 100 micrometers (μ...

Embodiment 2

[0163] Example 2: Using PDMS Microstructured Replicas on the Concave Surface of an Ophthalmic Lens Cold "UV imprinting (molding)" achieves anti-reflective microstructures, -enabling devices containing packaged A vacuum device is provided to control the translation of the piston.

[0164] A commercial acrylic coating (SHC 3100-LTI) having a thickness of 3 microns (μm) was deposited by spin coating onto the concave surface of a lens having a radius of curvature of 81 mm and a diameter of 65 mm.

[0165] The optical lens is placed concave side up on the lens carrier in the module, and the module is sealed by a planar flexible membrane supported in the lens carrier, the flexible membrane is on its inner side PDMS membrane microstructured on the face, UV (Sygard 184-Dow Corning) and having a thickness of 2 mm. The membrane, having a Shore hardness of 50 Shore A and a tensile modulus of rupture of 140%, was obtained by molding a replica from a microstructured master made of ni...

Embodiment 3

[0172] Example 3: Using a thermistor to bond a diaphragm to the convex surface of an optical lens, - the device used The device comprises a vacuum device equipped with the ability to control the translation of the piston.

[0173] Said lens, having a radius of curvature (convex) of 120 mm and a diameter of 65 mm, is placed convexly upwards (upper end 1 a of said module 1 ) on a lens carrier 7 in a module 1 supported by support means 9 The flat flexible membrane 30 in the membrane carrier 8 is sealed by a commercial membrane made of PET with a thickness of 75 microns (μm) (ARclear(R) DEV-8796-Adhesives Research , Inc.) and was coated with a layer of adhesive (Pressure Sensitive Adhesive - PSA) with a thickness of 25 micrometers (μm).

[0174] Arranged in said module 1 is a movable heating device 200 which, by means of hot air convection, makes it possible to raise the temperature of the membrane sealing said module, which in this way is heated to 160 °C, once the desired t...

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Abstract

The present invention relates to an apparatus for conforming a functionalized flexible planar film on an optical lens. The apparatus according to the invention may also be used in a process of functionalization of an optical lens. As a factor of the functionalization that one wishes to introduce into said optical lens and the nature of the functionalized flexible planar film used, the functionalization process is a process of gluing, transfer, or molding of a functionalized flexible planar film onto an optical lens. The implementation of each of these respective processes makes it possible to obtain a functionalized optical lens, said functionalization being adhered, transferred, or molded using a functionalized flexible planar film.

Description

technical field [0001] The invention relates to a device for forming a functionalized planar flexible film on an optical lens, another object of the invention is to bond, transfer or mold a functionalized planar flexible film by means of said forming device The final object of the present invention is to obtain a functionalized optical lens by bonding, transferring or molding a functionalized planar flexible film to the optical lens by means of said forming device. The lens came up to get it. Background technique [0002] Among the many cited documents describing devices and methods for applying films to optical lenses, citable patent application WO 97 / 35216 claims a method for laminating films to ophthalmic lenses device; US 4865670 claims a method of processing polarized lenses by applying pressure to the polarizing film, and the pressure creates contact between the film and the lens; US 6106665 Also described is a device capable of establishing contact between a functio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D11/00B29C65/00B29C65/48B30B5/02G02C7/02B32B37/10B32B37/12
CPCB29C63/02B29L2011/0016B29C63/0073B29D11/0073Y10T156/1054B29D11/00B29C65/00
Inventor 塞德里克·贝贡克里斯泰勒·德弗朗科吉勒·芒热斯
Owner ESSILOR INT CIE GEN DOPTIQUE
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