DOUBLE-SIDED COMPOUND SPECTACLE LENS AND PREPARATION MOLD THEREFOR

    公开(公告)号:US20240231125A9

    公开(公告)日:2024-07-11

    申请号:US18402845

    申请日:2024-01-03

    IPC分类号: G02C7/02 G02B1/04

    CPC分类号: G02C7/022 G02B1/041

    摘要: A double-sided composite spectacle lens and an inject mold therefor are provided. One surface of the spectacle lens is an aspherical surface, and the other surface is a designed aspherical surface used to inhibit astigmatism, and a spectacle lens formed by combining the two surfaces has two areas with different functions: optimizing optical performance, and thinning for aesthetics. By controlling the reduction of diopter and optimizing astigmatism on one surface, and inversely offsetting astigmatism on the other surface, the degree of astigmatism of the spectacle lens formed by combining the two surfaces is significantly lower than a diopter variation, and the degree of oblique astigmatism is significantly reduced. The aesthetic thinning effects of reducing the edge or center thickness of the double-sided composite spectacle lens are significantly enhanced by accelerating reduction of the diopter on one surface and changing from reducing to increasing the diopter on the other surface.

    Spectacle lens and method for designing the same

    公开(公告)号:US12007626B2

    公开(公告)日:2024-06-11

    申请号:US17423317

    申请日:2020-06-18

    IPC分类号: G02C7/02

    摘要: An object is to not lose an effect of suppressing the progression of myopia or hyperopia even in a peripheral area of a spectacle lens. A spectacle lens and a technology related thereto are provided, the spectacle lens including: a first area that causes light rays incident on an object-side face of the lens to exit from an eyeball-side face of the lens and to converge at a predetermined position A on a retina of a wearer; and a plurality of second areas configured to cause light rays to converge at a position B on the object side or a position C on the distal side relative to the position A, wherein, in the first area in a peripheral area of the spectacle lens that is a radius range from 4.5 mm to 25 mm of a lens center, a refractive power error in a meridional direction and a refractive power error in a sagittal direction have values that cause light rays to converge in a direction extending from a vicinity of the position A toward the position B if the second areas cause the light rays to converge at the position B, or have values that cause light rays to converge in a direction extending from the vicinity of the position A toward the position C if the second areas cause the light rays to converge at the position C.

    Method and system for selecting a color filter, optical article comprising such a color filter

    公开(公告)号:US12004810B2

    公开(公告)日:2024-06-11

    申请号:US16769992

    申请日:2018-12-06

    IPC分类号: A61B3/06 G02C7/10 G02C7/02

    CPC分类号: A61B3/066 G02C7/104 G02C7/024

    摘要: The invention relates to a method for selecting a color filter intended to be worn by a subject in order to improve his visual performance for a given visual task to be realized in a given environment. According to the invention, said method comprises the steps of: —submitting said subject to a colored spatio-temporal visual stimulus adapted to evaluate said visual performance for said given visual task, said stimulus being designed so that its chromaticity may be modified; —evaluating the visual performance of the subject based on his visual perception of said visual stimulus, the chromaticity of the visual stimulus taking at least two distinct values, each chromaticity being uniform; and —selecting said color filter based on the results of said evaluation. The invention further proposes an optical article comprising such a color filter. The invention finally provides a system for selecting a color filter using said method.

    Optical Lens with Halo Reduction
    30.
    发明公开

    公开(公告)号:US20240184135A1

    公开(公告)日:2024-06-06

    申请号:US18498549

    申请日:2023-10-31

    IPC分类号: G02C7/02

    CPC分类号: G02C7/02 A61F2002/1699

    摘要: A method is provided for use in reducing a size of halo effect in an ophthalmic lens. The method comprises: providing data indicative of a given ophthalmic lens with a first pattern providing prescribed vision improvement, processing said data indicative of the features of the first pattern and generating data indicative of a variation of at least one feature of the first pattern resulting in a second pattern which maintains said prescribed vision improvement and reduces a size of halo effect as compared to that of the lens with the first pattern.