摘要:
A self-service kiosk for dispensing eyewear is disclosed. The kiosk includes a display for depicting available frame and lens options to customers. A user interface accepts eyewear order information from a customer including the customer's prescription information and frame selection. The kiosk also includes a lens manufacturing device that is wholly contained within the kiosk for manufacturing optical lenses in the prescription of the customer, which are adapted for the selected frame. Further, the kiosk includes a dispensing mechanism for dispensing from the kiosk the manufactured lenses, along with the customer selected frame.
摘要:
A process for manufacturing a polarized optical device (82) and the resulting optical device. In the process, an optical device (82a) is coated with an adhesive (82c). A PVA polarizing film (82b) is moistened to render it formable. The PVA polarizing film is laminated on to the adhesive coating so that the PVA polarizing film forms to the shape of the optical device. The film, adhesive, device ensemble is then heat annealed. The PVA polarizing film is then contacted with a boric acid solution to crosslink the PVA so that it can withstand use and further processing. A polarized optical device includes an adhesive disposed between an optical base element and a PVA polarizing film.
摘要:
A method for producing an ophthalmic lens (20) comprised of a base lens (10) and a film structure (2) bound to said base lens includes a pressure-free heating. Said heating is performed after assembling the film structure with a semi-finished lens (1), and before said semi-finished lens is machined for obtaining the base lens. Although a maximum heating temperature is higher than a glass-transition temperature of the semi-finished lens, no image distortion and optical aberration is produced for the final ophthalmic lens. The maximum heating temperature is also lower than a glass-transition temperature of the film structure.
摘要:
A process is provided for rapidly holding an optical article having a convex surface on a holder of a lens machining equipment, the holder being equipped with a suction chuck comprising a cavity with a side wall and sealing means on a front end of the side wall, comprising the following steps: /a/ providing a flexible curved wafer with a concave surface arranged to close the cavity at the front end of the side wall; /b/ a fixing step in which the wafer is fixed onto the holder by providing vacuum between the concave surface of the wafer and the suction chuck; and IcI a pressing step in which the concave surface of the optical article is pressed onto the concave surface of the wafer, an adhesive material being arranged between the wafer and the optical article The assembly is tight enough for sustaining machining forces, and the lens can be released rapidly.
摘要翻译:提供了一种用于在透镜加工设备的保持器上快速保持具有凸表面的光学制品的工艺,所述保持器装备有吸盘,所述吸盘包括侧壁的空腔和在所述侧壁的前端上的密封装置, 包括以下步骤:/ a /提供柔性弯曲晶片,其具有设置成在侧壁的前端处封闭空腔的凹面; / b /固定步骤,其中通过在晶片的凹面与吸盘之间提供真空将晶片固定在支架上; 和IcI是将光学物品的凹面按压在晶片的凹面上的按压工序,配置在晶片和光学制品之间的粘合剂材料该组件足够紧以维持加工力,透镜可以 快速释放
摘要:
A process for polymerizing episulfide monomers comprising the steps of : (a) mixing to an episulfide monomer or a mixture of episulfide monomers an effective amount of at least one photopolymerization catalyst selected from the group consisting of (cyclopentadienyl) ruthenium and osmium complexes and an effective amount of at least a co-catalyst selected from phosphonium salts, phosphines and amines ; and (b) irradiating the mixture of (a) with an ultra-violet radiation to polymerize the mixture.
摘要:
It is disclosed a method of forming an optical article comprising: providing a base lens substrate (10) having opposite first and second optical surfaces, and at least one microlens protruding from the second optical surface, placing the base lens substrate in a mold (90) comprising first (91) and second (92) mold portions such that the first optical surface is disposed on a molding surface of the first mold portion (91), and that a volume is defined between a molding surface of the second mold portion and the second optical surface, filling the volume with a moldable material suitable for forming abrasion resistant coating; and setting the moldable material to form an abrasion-resistant coating (20) over the base lens substrate (10), wherein the abrasion resistant coating encapsulates each microlens (30).
摘要:
A method and apparatus for elimination of lamination defects on multifocal lenses. The lamination method uses a flexible bladder (14, 14a) designed to apply pressure evenly across the lens (22) surface. A spacer (100a, 100b) is positioned between a Hard Multi-Coat carrier (26) and the flexible bladder. The spacer is located in a region of the carrier which is designated to deliver a coating to a section of the lens which is farthest from the carrier. The spacer asymmetrically increases the pressure applied to the carrier to eliminate lamination defects.
摘要:
An optical adhesive product and a process for manufacturing an optical adhesive product, laminated film ensembles, and laminated lenses. The optical adhesive product includes a glyoxal water solution that is pH adjusted for use as an optical adhesive that demonstrates a wet peel force strength above about 6 Newtons. A water based polymer, such as PVOH, may be added to the adhesive system. According to the process, the glyoxal adhesive system is manufactured and utilized to laminate TAC-PVA-TAC films together to form a polar film ensemble. The polar film ensemble is laminated to an optical susbtrate and in the case of an ophthalmic lens, surfaced, coated and edged. The optical adhesive product avoids film separation in the polar TAC-PAV- TAC film ensemble during edging.
摘要:
The present invention is directed to a process for coating at least one geometrically defined surface of an optical article's substrate, without generating optical defects, said surface forming a Fresnel lens (2), comprising: providing a removable plastic carrier (4) having a specific thickness and a specific base curvature, depositing a curable coating composition (3) onto either the at least one surface forming a Fresnel lens or the internal surface of the carrier, moving the carrier and the optical article relatively to each other to bring the deposited curable coating composition into contact with either the at least one surface forming a Fresnel lens or the internal surface of the carrier, applying a specific pressure onto the external surface of the carrier to spread out the curable coating composition so as to cover said at least one surface forming a Fresnel lens, curing the layer of curable coating composition and withdrawing the removable carrier.
摘要:
The invention concerns a process for making a coated optical lens blank free of visible fining lines which comprises : (ix) providing an optical article having at least one fined but unpolished geometrically defined main face ; (x) providing a mold part having an internal and external surface; (xi) depositing on said main face of said optical article or on the internal surface of the mold part a requisit amount of a liquid curable coating composition ; (xii) moving relatively to each other the optical article and the mold part to either bring the coating composition into contact with the main face of the optical article or into contact with the internal face of the mold part; (xiii) applying pressure to the mold part to spread the liquid curable coating composition on said main face and form a uniform liquid coating composition layer onto the main face; (xiv) curing the liquid coating composition layer; (xv) withdrawing the mold part; and recovering the free of visible fining lines coated optical article.