Abstract: An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and/or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and/or a random variation in dot size.

Abstract: Ophthalmic lenses and method of manufacturing ophthalmic lenses are disclosed. The lenses are manufactured with markers for aligning the lenses in a particular rotational alignment with respect to a spectacle frame. The lenses can also be provided with scattering parts for defocus to prevent myopia.

Abstract: An ophthalmic lens includes a first region corresponding to a first area of an optical surface of the ophthalmic lens and a second region corresponding to a second area of the optical surface of the ophthalmic lens different from the first area The second region has an optically-switchable component switchable between a first optical state and a second optical state different from the first optical state. In the first optical state the second region partially scatters or defocuses light incident on the second area.

Abstract: A method includes providing an ophthalmic lens having a prescribed optical power, the ophthalmic lens having a surface having a base curvature corresponding to the prescribed optical power, and exposing a material at the surface to laser radiation sufficient to locally reshape the material to form a plurality of lenslets on the surface. The lenslets each have a corresponding optical power that differs from the prescribed optical power of the ophthalmic lens.

Abstract: Methods and devices for treating a human child having myopia are disclosed. For example, a human child having myopia can be treated by wearing spectacles having one or two myopia control spectacle lenses.

Abstract: An ophthalmic lens includes a lens material having two curved surfaces opposing each other; a light scattering region; a first aperture (e.g., clear or with reduced scattering density/power compared to the light scattering region) surrounded by the light scattering region; and a second aperture (e.g., clear or with reduced scattering density/power compared to the light scattering region) separated from the first clear aperture by a portion of the light scattering region.

Abstract: An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and/or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and/or a random variation in dot size.

Abstract: An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and/or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and/or a random variation in dot size.

Abstract: This disclosure includes methods and systems for producing ophthalmic lenses. Some methods include identifying a plurality of zones within a spatial representation of a lens blank, selecting, for each of the zones, one or more parameters for producing the lens, and producing the lens by removing material from the lens blank according to the one or more parameters of each of the zones.

Abstract: An ophthalmic lens that includes a lens material having two opposing curved surfaces, the curved surfaces defining a lens axis; and a light scattering region surrounding a clear aperture. The clear aperture and the light scattering region are substantially centered on the lens axis, and the light scattering region has a plurality of spaced apart scattering centers (e.g., on a lens surface and/or embedded in the lens material) sized and shaped to scatter incident light, the scattering centers being arranged in a pattern that includes a random variation in spacing between adjacent dots and/or a random variation in dot size.

Abstract: The present invention relates generally to safety eyewear and more particularly to a safety eyewear that includes a coloration or tinting of an outer peripheral edge of the lens for indicating a performance characteristic of the safety eyewear or the lens and selected absorption of visible wavelengths of light. In one embodiment, the eyewear includes a VLT rated lens having a light visible tint or slight mist tint to provide ornamental coloration of the outer peripheral lens edge. The lens has a roughened or textured cut along an outer peripheral edge of the lens to diffract light. The outer peripheral lens edge is color coded according to a performance characteristic of the lens or the eyewear. In operation, the ornamental color of the outer peripheral edge of the lens is activated upon the diffraction of light along the roughed or texture outer peripheral edge of the lens while still meeting industry VLT requirements for a substantially clear lens.

Abstract: The present invention relates generally to safety eyewear and more particularly to a safety eyewear having a horizontal ledge defined within a lens of the safety eyewear for attaching the nose piece structure. The safety eyewear includes a frame and a lens. The nose piece structure configured for attachment to a central portion of the lens. The nose piece structure having a channel defining horizontal ledge indents for mating engagement with horizontal ledge protrusions defined within the central portion of the lens. The central portion of the lens defining horizontal ledge protrusions for inserting within the ledge indents of the nose piece structure when the nose piece structure and the lens are attached together. In another embodiment, the channel of the nose piece structure defines horizontal ledge protrusions for mating engagement with horizontal ledge indents defined within the central portion of the lens.

Abstract: The present invention relates generally to safety eyewear and more particularly to a safety eyewear having a horizontal ledge defined within a lens of the safety eyewear for attaching the nose piece structure. The safety eyewear includes a frame and a lens. The nose piece structure configured for attachment to a central portion of the lens. The nose piece structure having a channel defining horizontal ledge indents for mating engagement with horizontal ledge protrusions defined within the central portion of the lens. The central portion of the lens defining horizontal ledge protrusions for inserting within the ledge indents of the nose piece structure when the nose piece structure and the lens are attached together. In another embodiment, the channel of the nose piece structure defines horizontal ledge protrusions for mating engagement with horizontal ledge indents defined within the central portion of the lens.

Abstract: The present invention relates generally to safety eyewear and more particularly to a safety eyewear that includes a coloration or tinting of an outer peripheral edge of the lens for indicating a performance characteristic of the safety eyewear or the lens and selected absorption of visible wavelengths of light. In one embodiment, the eyewear includes a VLT rated lens having a light visible tint or slight mist tint to provide ornamental coloration of the outer peripheral lens edge. The lens has a roughened or textured cut along an outer peripheral edge of the lens to diffract light. The outer peripheral lens edge is color coded according to a performance characteristic of the lens or the eyewear. In operation, the ornamental color of the outer peripheral edge of the lens is activated upon the diffraction of light along the roughed or texture outer peripheral edge of the lens while still meeting industry VLT requirements for a substantially clear lens.

Abstract: A glare protection filter, in particular for a welding mask or welding protection device including an electro-optical light filter 10 that includes at least one electro-optical cell (12, 13, 14, 15, 16, 17, 18) by which an amount of light transmitted through the filter is reducible, wherein at least a first one of the electro-optical cells comprises two parallel transparent plates (12, 18) having transparent electrodes (13, 17) on the inner surfaces thereof and containing a liquid crystal material (15) and orientation layers (14, 16) defining an anchoring of the liquid crystal material (15). Upon application of a voltage of less than 30V to the electrodes (13, 17), the molecule orientation in the liquid crystal material (15) near at least one of the orientation layers (14, 16) is subject to rotation of at least 10°.

Abstract: The glare protection device for welding applications contains an active electro-optical filter element (2) with an electronic control circuit (3). The active filter element (2) absorbs the UV-radiation up to 380 nm. An IR-plastic filter (10) is completely joined with the active electro-optical filter element by a compact adhesive layer (11) and together with it forms a single optical and mechanical unit (1) having a high transmittance in the visual region of the spectrum. The IR-plastic filter (10) contains a dye that absorbs the infrared radiation in a wavelength range of 780-1400 nm. With this, a robust, cheap and safe in operation glare protection device for various applications is created.

Abstract: The glare protection device for welding applications contains an active electro-optical filter element (2) with an electronic control circuit (3). The active filter element (2) absorbs the UV-radiation up to 380 nm. An IR-plastic filter (10) is completely joined with the active electro-optical filter element by means of a compact adhesive layer (11) and together with it forms a single optical and mechanical unit (1), which comprises a high transmittance in the visual region of the spectrum. The IR-plastic filter (10) contains a dye and it absorbs the infrared radiation in a wave length range of 780-1400 nm. With this, a robust, cheap and safe in operation glare protection device for various applications is created.