Abstract: An object of the present invention is to provide an optical film which has thermochromic properties that a near-infrared light shielding ratio can be controlled according to temperature environment and which has a low haze and has excellent crack resistance and adhesiveness even when the optical film is used over a long period of time, and a method for producing the same.

Abstract: An active prism structure includes: an isotropic layer made of a photocurable isotropic polymer having a predetermined refractive index np and stacked on a substrate; and a birefringent layer made of a birefringent material having an ordinary refractive index no and an extraordinary refractive index ne and stacked on the isotropic layer, an interface between the isotropic layer and the birefringent layer is formed in a prism shape, and refractive index differences occurring at the interface between the isotropic layer and the birefringent layer are different according to a polarization direction of incident light. The active prism structure is configured such that the refractive index differences are different according to the polarization direction of the incident light, and thus, it is possible to change a refraction angle and refraction direction of the prism by controlling the polarization direction of the incident light.

Abstract: The present invention relates to a glass plate including a first main surface subjected to antiglare treatment, and a second main surface opposed to the first main surface, in which a clarity index value T, a reflection image diffusiveness index value R and an anti-sparkle index value S satisfy respective relations of: clarity index value T?0.8; reflection image diffusiveness index value R?0.01; and anti-sparkle index value S?0.85; and a transmission haze measured by a method according to JIS K 7136 (2000) being 15% or less. The glass plate of the present invention is excellent in clarity, reflection image diffusiveness and anti-sparkle, and also excellent in reproducibility of color.

Abstract: Techniques, systems, and devices are disclosed for implementing light-emitting hyperbolic metasurfaces. In one exemplary aspect, a light-emitting device includes a surface; a plurality of quantum heterostructures positioned on the surface, each of the plurality of quantum heterostructures including multiple quantum wells distributed along an axis perpendicular to the surface and separated by multiple quantum barriers, wherein each two adjacent quantum heterostructures of the plurality quantum heterostructures form a gap; and a monocrystalline material at least partially filling gaps between the plurality quantum heterostructures.

Abstract: A blended optical device includes a first objective with a first axis and a first image position adjustment means for adjusting the position of a first image. An electronic control circuitry is configured to control the first adjustment means to adjust a position of the first image. A second objective includes a second axis and a variable focus mechanism, and a blender configured to form a blended image from the first image and a second image. The electronic control circuitry is configured to receive data from the second objective regarding a range to a target of the second objective as a function of the focus setting, and to adjust the position of the first image so that the blended image is corrected for parallax errors.

Abstract: Ultra thin Fresnel lenses and methods of forming the same are described herein. An optical element comprising an ultra thin Fresnel lens includes a plurality of Fresnel elements formed on a surface of a substrate. Each of the plurality of Fresnel surface elements has an angled facet portion and a shallow or substantially horizontal portion. The Fresnel surface elements can be formed, for example, by a hot stamp or cold transfer method.

Abstract: An eyeglasses structure includes a frame body, at least one lens, a first elastic contacting member and a second elastic contacting member. The frame body includes an attaching portion and a positioning portion. The at least one lens is detachably attached to the attaching portion. Each of the first and second elastic contacting members includes an engaging portion detachably engages the positioning portion, a linking rod portion connected with the matching portion, and a nose pad portion connected to the linking rod portion. The radial cross-sectional area of the linking rod portion is smaller than that of the nose pad portion connected to the linking rod portion, so as to increase the swing angle of the nose pad portion relative to the engaging portion connected with the linking rod portion.

Abstract: A method for demonstrating optical properties of a lens for spectacle glasses is disclosed in which a demonstration tool displays an optical property of the lens. The demonstration tool includes a light source and a light sensor receiving light from the light source. Placing a lens in the beam path between the light source and the light sensor changes the readout from the light sensor and the change in readout is converted into an optical property of the lens. An observer sees the optical property of the lens on a display.

Abstract: The present invention discloses a micro-objective lens, comprising the first lens group, the second lens group, the third lens group, the fourth lens group, the fifth lens group, the sixth lens group, the seventh lens group, the eighth lens group, the ninth lens group and the tenth lens group with optical axis arranged in a sequence from the left to the right; the focal length of the first lens group is negative; the second lens group belongs to doublet, in which the focal length of the first and second lens is positive and negative respectively; the focal length of the third lens group is positive; the fourth and fifth lens groups belongs to doublets, in which the focal length of the first and second lens in each group is negative and positive respectively; the focal length of the sixth lens group is positive; the focal length of the seventh and eighth lens groups is negative; the focal length of the ninth and tenth lens groups is positive.

Abstract: A diffractive multi-focal lens having a diffractive structure comprising a plurality of concentric circular zones, wherein: at least a portion of the diffractive structure is provided with an overlapping region in which at least two zone profiles overlap in the same region; in the overlapping region, at least a portion of a first zone profile has a zone pitch represented by a prescribed equation, and at least a portion of a second zone profile has a zone pitch represented by another prescribed equation; and an addition power P1 given by the first zone profile and an addition power P2 given by the second zone profile are determined by a prescribed relational expression, in which a and b are mutually different real numbers, and a value of a/b cannot be expressed by a natural number X or by 1/X.

Abstract: The zoom lens consists of, in order from the object side, a first lens group that has a negative refractive power; a second lens group that has a positive refractive power; a third lens group that has a negative refractive power; and a fourth lens group that has a positive refractive power. During zooming, in each lens group, distances between the adjacent groups in the direction of the optical axis are changed. The first lens group consists of, in order from the object side, a first lens having a negative refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power. The third lens group consists of a negative lens. During focusing, only the third lens group moves along the optical axis. The zoom lens satisfies predetermined conditional expressions.

Abstract: Eyewear in the form of a pair of lenses and a pair of frame halves, each frame half supporting a lens. The frame halves are releasably connected to one another at the bridge between the lenses at their inner ends and the frame halves have frame half outer ends on opposite sides of said lenses from the bridge. The eyewear also includes first and second temples having temple first ends and temple second ends, the temple first ends being pivotally connected to the frame halves outer ends, each temple including a channel. The eyewear also includes a flexible strap having first and second flexible strap ends, to which are affixed first and second sliders, each slider affixed to one end of the flexible strap at the first and second flexible strap ends.

Abstract: A lens structure formed by materials in different refractive indexes includes a sphere which is a round ball formed by a first portion and a second portion, a first lens which is formed on the first portion, a separation layer which is disposed between the sphere and the first lens, a second lens which is formed on the second portion, and a third lens which is formed on the second lens and opposite to the sphere. The first lens, the second lens and the third lens are formed respectively by a material in different refractive index and are provided respectively with a light absorption curve in different curvature, so that a light beam can pass through these light absorption curves to form plural times of light condensing effect.

Abstract: Disclosed is eyeglasses equipment (1) including a frame (10), and at least one ophthalmic lens (20) mounted into the frame. The equipment includes a colored interface (30) that is placed between the frame and the lens.

Abstract: The present invention improves slidability between a moving part and a support member that supports the moving part. A head-up display device includes: a display that emits display light; a moving part on which a first sliding surface is formed; and a support member on which a second sliding surface that comes into contact with the first sliding surface is formed. The support member movably supports the moving part. The head-up display device displays vehicle information as virtual images from the display light. Linear protrusions and recesses are formed on the first sliding surface and/or the second sliding surface following the trajectory along which the moving part moves.

Abstract: Methods, systems and apparatuses are presented for controlling ambient light transmission through electrochromic devices comprising a plurality of dimmable zones.

Abstract: An optically anisotropic layer including a polymer and a compound having a mesogen skeleton, wherein the polymer has a property such that a film of the polymer that is formed by a coating method using a solution of the polymer satisfies nz(P)>nx(P)?ny(P), wherein nx(P) is a refractive index in a direction which, among in-plane directions of the film, gives a maximum refractive index, ny(P) is a refractive index in a direction which is perpendicular to the direction of nx(P) among the in-plane directions of the film, and nz(P) a refractive index in a thickness direction of the film, and the compound having a mesogen skeleton shows an in-plane retardation with reverse wavelength distribution under specific conditions.

Abstract: A lens module includes lenses sequentially arranged from an object-side toward an image plane sensor and comprising refractive power, respectively. A second lens of the lenses has a convex object-side surface and a convex image-side surface. A first lens and a third lens of the lenses are symmetrical to each other in relation to the second lens.

Abstract: An interlayer comprising a first polymer layer, a polarization rotary optical film and optionally a second polymer layer, and multiple layer panels formed from such interlayers. The panels may exhibit desirable optical properties, including, for example, less image “ghosting,” when used as part of a heads-up-display (HUD) display panel for use in automotive and aircraft applications.

Abstract: An imaging lens assembly includes six lens elements, the six lens elements being, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element has negative refractive power. The second lens element has positive refractive power. The fifth lens element has positive refractive power.