Apparatus and methods are described for use with a temporary progressive lens that is configured for a subject's temporary use based upon an initial progressive-lens optical design. While the temporary progressive lens is inside a frame that is configured to be worn by the subject, data are received from one or more sensors that are associated with the frame and that are configured to detect when the frame is removed from and/or repositioned on the subject's face, while the subject performs activities. Based upon the received data and reasons provided by the subject for the frame having been removed from and/or repositioned on the subject's face, an optimized optical design for the progressive lens is determined. Other applications are also described.
Apparatus and methods are described for use with a frame (21) of glasses (18) that are to be worn by a wearer. A progressive lens (20) is configured to provide a far-vision corrective functionality and a near-vision corrective functionality. The progressive lens includes a bespoke, single-vision base lens (22) that is configured to provide at least a portion of the far-vision corrective functionality, the bespoke lens being formed so as to accommodate ophthalmic requirements of the wearer, and/or requirements of the glasses frame (21). The progressive lens further includes an additional lens (24) coupled to the bespoke, single-vision base lens (22), the additional lens (24) being configured to provide progressive near-vision corrective functionality. Other applications are also described.
Apparatus and methods are described for use with a frame (21) of glasses (18). A combined lens (20) is placed within the frame (21) to define a horizontal axis that is configured to align with the horizontal meridian of the wearer's eye when the glasses are worn by the wearer. The combined lens includes a stock base lens (22) and a stock additional lens (24). The additional lens (24) is coupled to the base lens (22) with the additional lens (24) and the base lens (22) rotationally aligned in a rotational orientation with respect to each other, such that the functional planes of the base lens (22) and the additional lens (24) within the combined lens (20) are rotationally oriented at first and second rotational orientations, respectively, with respect to the horizontal axis (25) of the combined lens (20). Other applications are also described.
Apparatus and methods are described including an additional lens (24) made from an amorphous viscoelastic material and having an optical design. A curvature of the additional lens (24) is changed such as to conform with a curvature of a base eyeglasses lens (22), without causing a loss of the optical design of the additional lens (24), by heating the additional lens (24) to a temperature at which a Tan Delta of the amorphous viscoelastic material is between 0.2 and 0.8, and shaping the additional lens (24). Subsequently, the additional lens (24) is adhered to the base eyeglasses lens (22). The optical design of the additional lens (24) is such that, upon being adhered to the base eyeglasses lens (22), the adhered base eyeglasses lens (22) and the additional lens (24) provide a combined lens (20) having a desired optical prescription. Other applications are also described.
Apparatus and methods are described including a vacuum-plasma-jig (20) that receives an object (10) during application of a vacuum plasma-treatment to a first surface (12) of the object 10). A receptacle (22) and base (30) of the vacuum-plasma-jig (20) are shaped such that when the receptacle (22) receives a portion of a second surface (14) of the object (10), there is a hollow space (28) proximate to the portion of the second surface (14) of the object (10). The vacuum-plasma-jig (20) defines a channel (32) therethrough, a first end (34) of the channel (32) opening to an exterior of the vacuum-plasma-jig (20) and a second end (36) of the channel (32) opening to the hollow space (28), a ratio of a length of the channel in mm to a mean cross-sectional area of the channel in square mm being greater than 100:1. Other applications are also described.
Apparatus and methods are described for use with a frame (21) of glasses (18) that are to be worn by a wearer. A progressive lens (20) is configured to provide a far-vision corrective functionality and a near-vision corrective functionality. The progressive lens includes a bespoke, single-vision base lens (22) that is configured to provide at least a portion of the far- vision corrective functionality, the bespoke lens being formed so as to accommodate ophthalmic requirements of the wearer, and/or requirements of the glasses frame (21). The progressive lens further includes an additional lens (24) coupled to the bespoke, single-vision base lens (22), the additional lens (24) being configured to provide progressive near-vision corrective functionality. Other applications are also described.
Apparatus and methods are described, including providing a temporary progressive lens (20) that is configured for a subject's temporary use, based upon an initial progressive-lens optical design. The lens is composed of a base lens (22) and an attached additional and removable progressive lens part (24) for test purposes. Data that are indicative of suitability of the optical design for activities that are performed by the subject are received, the data being generated during use of the temporary progressive lens by the subject. Based upon the received data, the optical design for a progressive lens for the subject is optimised, and the optimised optical design in output.
Apparatus and methods are described including an additional lens (24) made from an amorphous viscoelastic material and having an optical design. A curvature of the additional lens (24) is changed such as to conform with a curvature of abase eyeglasses lens (22), without causing a loss of the optical design of the additional lens (24), by heating the additional lens (24) to a temperature at which a Tan Delta of the amorphous viscoelastic material is between 0.2 and 0.8, and shaping the additional lens (24). Subsequently, the additional lens (24) is adhered to the base eyeglasses lens (22). The optical design of the additional lens (24) is such that, upon being adhered to the base eyeglasses lens (22), the adhered base eyeglasses lens (22) and the additional lens (24) provide a combined lens (20) having a desired optical prescription. Other applications are also described.
Apparatus and methods are described including adhering a first lens to a second lens such as to form a combined lens having a given optical design, by placing the first lens and the second lens in respective first and second pressure chambers with an adhesive layer disposed between the first lens and the second lens, bringing a convex surface of the first lens into contact with the adhesive layer, and bringing a concave surface of the second lens into contact with the adhesive layer. Other applications are also described.
Apparatus and methods are described including a vacuum-plasma-jig (20) that receives an object (10) during application of a vacuum plasma-treatment to a first surface (12) of the object 10). A receptacle (22) and base (30) of the vacuum-plasma-jig (20) are shaped such that when the receptacle (22) receives a portion of a second surface (14) of the object (10), there is a hollow space (28) proximate to the portion of the second surface (14) of the object (10). The vacuum-plasma-jig (20) defines a channel (32) therethrough, a first end (34) of the channel (32) opening to an exterior of the vacuum-plasma-jig (20) and a second end (36) of the channel (32) opening to the hollow space (28), a ratio of a length of the channel in mm to a mean cross-sectional area of the channel in square mm being greater than 100:1. Other applications are also described.
Apparatus and methods are described including a progressive lens (20) that is configured to provide a far-vision correction and a near-vision correction. The progressive lens includes a single-focus, far-vision corrective lens (22) that is configured to provide only a portion of the far-vision correction, and a film (24) coupled to the single-focus, far-vision corrective lens (22). The film (24) defines a far-vision corrective portion (26) that is configured to provide the remainder of the far-vision correction, a near-vision corrective portion (28) that is configured to provide additive near-vision correction, and an intermediate portion (30) in which the film transitions between the far-vision corrective portion and the near-vision corrective portion. Other applications are also described.
Apparatus and methods are described including an additional lens (24) made from an amorphous viscoelastic material and having an optical design. A curvature of the additional lens (24) is changed such as to conform with a curvature of a base eyeglasses lens (22), without causing a loss of the optical design of the additional lens (24), by heating the additional lens (24) to a temperature at which a Tan Delta of the amorphous viscoelastic material is between 0.2 and 0.8, and shaping the additional lens (24). Subsequently, the additional lens (24) is adhered to the base eyeglasses lens (22). The optical design of the additional lens (24) is such that, upon being adhered to the base eyeglasses lens (22), the adhered base eyeglasses lens (22) and the additional lens (24) provide a combined lens (20) having a desired optical prescription. Other applications are also described.
Apparatus and methods are described including an additional lens (24) made from an amorphous viscoelastic material and having an optical design. A curvature of the additional lens (24) is changed such as to conform with a curvature of a base eyeglasses lens (22), without causing a loss of the optical design of the additional lens (24), by heating the additional lens (24) to a temperature at which a Tan Delta of the amorphous viscoelastic material is between 0.2 and 0.8, and shaping the additional lens (24). Subsequently, the additional lens (24) is adhered to the base eyeglasses lens (22). The optical design of the additional lens (24) is such that, upon being adhered to the base eyeglasses lens (22), the adhered base eyeglasses lens (22) and the additional lens (24) provide a combined lens (20) having a desired optical prescription. Other applications are also described.
Apparatus and methods are described, including providing a temporary progressive lens (20) that is configured for a subject's temporary use, based upon an initial progressive-lens optical design. The lens is composed of a base lens (22) and an attached additional and removable progressive lens part (24) for test purposes. Data that are indicative of suitability of the optical design for activities that are performed by the subject are received, the data being generated during use of the temporary progressive lens by the subject. Based upon the received data, the optical design for a progressive lens for the subject is optimised, and the optimised optical design in output.
Apparatus and methods are described including a progressive lens that is configured to provide a far-vision correction and a near-vision correction. The progressive lens includes a single-focus, far-vision corrective lens that is configured to provide only a portion of the far-vision correction, and a film coupled to the single-focus, far-vision corrective lens. The film defines a far-vision corrective portion that is configured to provide the remainder of the far-vision correction, a near-vision corrective portion that is configured to provide additive near-vision correction, and an intermediate portion in which the film transitions between the far-vision corrective portion and the near-vision corrective portion. Other applications are also described.
Apparatus and methods are described including a progressive lens (20) that is configured to provide a far-vision correction and a near-vision correction. The progressive lens includes a single-focus, far-vision corrective lens (22) that is configured to provide only a portion of the far-vision correction, and a film (24) coupled to the single-focus, far-vision corrective lens (22). The film (24) defines a far-vision corrective portion (26) that is configured to provide the remainder of the far-vision correction, a near-vision corrective portion (28) that is configured to provide additive near-vision correction, and an intermediate portion (30) in which the film transitions between the far-vision corrective portion and the near-vision corrective portion. Other applications are also described.
Apparatus and methods are described including a progressive lens (20) that is configured to provide a far-vision correction and a near-vision correction. The progressive lens includes a single-focus, far-vision corrective lens (22) that is configured to provide only a portion of the far-vision correction, and a film (24) coupled to the single-focus, far-vision corrective lens (22). The film (24) defines a far-vision corrective portion (26) that is configured to provide the remainder of the far-vision correction, a near-vision corrective portion (28) that is configured to provide additive near-vision correction, and an intermediate portion (30) in which the film transitions between the far-vision corrective portion and the near-vision corrective portion. Other applications are also described.
Apparatus and methods are described including a corrective optical element having a thickness and/or a curvature that is different in different regions of the corrective optical element, such that the corrective optical element is configured, upon being adhered to any one of a plurality of differently-shaped optically-corrective single-vision lenses, to change a focal length of the optically-corrective single-vision lens differently in different regions of the optically-corrective single-vision lens. The corrective optical element is shapeable such that the corrective optical element can conform with a shape of any one of the plurality of differently-shaped optically-corrective single-vision lenses. Other applications are also described.
Apparatus and methods are described including generating a multi-focal lens and/or a progressive lens by adhering a corrective optical film to an optically-corrective single-focal lens, such as to change a focal length of the single-focal lens differently in different regions of the single-focal lens. Other applications are also described.
Apparatus and methods are described, including a corrective optical film for converting a corrective single-focal lens to a multi-focal lens and/or a progressive lens. A thickness and/or a curvature of the corrective optical film is different in different regions of the corrective optical film, such that the corrective optical film is configured, upon being adhered to the single-focal lens, to change a focal length of the single-focal lens differently in different regions of the single-focal lens. Other applications are also described.
The present invention describes an apparatus for converting a single-focal lens to become a multifocal or progressive lens. The conversion process comprises adhering a prescribed corrective optical film to a single-focal lens, whereby the corrective optical film converts the single-focal lens to become a multifocal or progressive lens.
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