Abstract: A display device includes: a display panel and a photonic crystal grating disposed on a light-emitting side of the display panel; wherein the photonic crystal grating has a fully light-transmitting state and a grating state used for 3D display.

Abstract: A joined optical member 1 includes: a hardly adhesive lens L1 that is formed of a hardly adhesive material; an easily adhesive lens L2 that is formed of a easily adhesive material and is provided parallel to the hardly adhesive lens L1 in an optical axis direction; a bonding member that includes an exposed portion 2a and is embedded in the hardly adhesive lens L1, the exposed portion 2a being exposed to an outer peripheral portion 11 of a facing surface L1a of the hardly adhesive lens L1 that faces the easily adhesive lens L2; and an adhesive 3 that allows the easily adhesive lens L2 and the exposed portion 2a of the bonding member 2 to adhere to each other. The easily adhesive material has higher adhesiveness with the adhesive than the hardly adhesive material.

Abstract: The present application relates to an electrochromic device. In one aspect, the electrochromic device includes an electrochromic element including a first electrode, a second electrode, an electrochromic layer, an ion storage layer and the second electrode. The electrochromic device also includes controller configured to change a state of the electrochromic element to change to at least one of a first state having a first transmittance, a second state having a second transmittance, a third state having a third transmittance, or a fourth state having a fourth transmittance by applying power to the electrochromic element. When a first voltage is applied to the electrochromic element in a first state, the electrochromic element becomes the second state, and when the first voltage is applied to the electrochromic element in a fourth state, the electrochromic element becomes the third state.

Abstract: According to the invention, spectacles include a frame front (2) onto which the temples (3a, 3b) are attached, characterized in that the temples are detachably connected to the frame front by means of a magnet (7).

Abstract: A backlight unit has a light source, a light collecting member that collects light emitted from the light source, and a micromirror array that has a concave reflecting surface and reflects light entering from the light collecting member toward a liquid crystal panel by the reflecting surface, a polarizing plate that folds back, between the micromirror array and the liquid crystal panel, an optical path of light reflected by the micromirror array toward the liquid crystal panel, and a diffusing plate disposed on an optical path between the polarizing plate and the liquid crystal panel. In the micromirror array, the reflecting surface is composed of a plurality of micromirrors. The polarizing plate transmits light oscillating in a first direction orthogonal to an oscillating direction of light transmitted through the liquid crystal panel and reflects light oscillating in a second direction intersecting the first direction.

Abstract: A diagnostic eye goggle system is described herein. The diagnostic eye goggle system includes goggles having a radiation source, a radiation sensor, optical elements, and a microcontroller for acquiring optical data from a user's eye including, but not limited to, wavefront data, spectral data, and frequency-shifted wavelength data. An external master database stores historical user data from previous users of the diagnostic eye goggle system. A transceiver disposed in the goggles provides a datalink between the acquired optical data and the external master database. A diagnostic software module cross-correlates the acquired optical data with the historical data to provide a diagnosis of a disease state of the user. The goggles further provide lens-correcting instructions or suggestions to a user or health care provider based on the acquired wavefront data.

Abstract: A variable focal length lens apparatus includes a lens system where a refractive index changes in response to an input drive signal; a field lens arranged on the same optical axis as the lens system; an image detector detecting an image of a measured object through the lens system and the field lens; a pulse illuminator providing pulse illumination of the measured object based on an input light emission signal; a temperature sensor detecting temperature information for an interior of the lens system; and a controller outputting the drive signal and the light emission signal in addition to correcting the timing of the light emission signal based on the temperature information.

Abstract: The present disclosure discloses a camera optical lens. The camera optical lens includes, in an order from an object side to an image side, a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens. The first lens is made of glass material, the second lens is made of plastic material, the third lens is made of plastic material, the fourth lens is made of plastic material, the fifth lens is made of plastic material, the sixth lens is made of plastic material, and the seventh lens is made of plastic material. The camera optical lens further satisfies specific conditions.

Abstract: The invention relates to a method of selection of an ophthalmic lens suitable for correcting at least an optical impairment of an eye of a wearer who observes a screen. According to the invention the method comprises the steps of: determining at least a characteristic of posture of the wearer observing said screen, determining a dioptric power value associated to said vision zone allowing the wearer when wearing the ophthalmic lens to have an easier reading of said screen, determining at least one characteristic of filtering means to adjust the light exposure of the wearer to said screen, and determining the vision zone based on dioptric power value, characteristic of posture of the wearer and characteristic of filtering means so that the vision comfort of the wearer is optimized when wearing the ophthalmic lens while observing a screen.

Abstract: Near-eye combiner displays are disclosed that utilize dichroic reflectors and/or reflective polarizers disposed as a pellicle positioned within a field of view of the eye. A secondary image can be reflected off of the reflective polarizer and/or dichroic layer towards the eye, and can be superimposed over a primary world-view image being viewed by the eye. The position and orientation of the pellicle can be independently adjusted as desired.

Abstract: A side shield retainer kit is provided. In an exemplary embodiment, a side shield retainer kit includes a spring bar having first and second engagement surfaces and an outer surface including a sloped portion. A cylindrical polymeric retainer having an outer major surface and an inner major surface is positionable around the spring bar and is configured to secure the spring bar to a spectacle side shield upon exposure to heat.

Abstract: A conformable covering comprises an outer portion with rigidity to resist movement on the cornea and an inner portion to contact the cornea and provide an environment for epithelial regeneration. The inner portion of the covering can be configured in many ways so as to conform at least partially to an ablated stromal surface so as to correct vision. The conformable inner portion may have at least some rigidity so as to smooth the epithelium such that the epithelium regenerates rapidly and is guided with the covering so as to form a smooth layer for vision. The inner portion may comprise an amount of rigidity within a range from about 1×10?4 Pa*m3 to about 5×10?4 Pa*m3 so as to deflect and conform at least partially to the ablated cornea and smooth an inner portion of the ablation with an amount of pressure when deflected.

Abstract: The present invention comprises a device and method that reduces the appearance of inter-monitor seams by optically magnifying display areas on each side of a seam such that they appear to extend beyond the display area of a monitor so as to give the visual appearance of extending to the outside edge of each monitor's frame. In one embodiment, the invention comprises a clear longitudinal magnifying strip comprising a generally bi-semicircular cross section that is mounted across an inter-monitor seam. In one embodiment, the invention comprises a video processor that adjusts the image displayed on a monitor to compensate for the visual distortion caused by the magnifying strip.

Abstract: A holder for eyeglass lenses having a holding part, which is magnetically secured to the fastening part in detachable fashion and has a nose bridge for holding eyeglass lenses, and having at least one swivel bearing, which is provided between the fastening part and the nose bridge of the holding part and has at least two bearing parts that are able to swivel relative to each other around the swivel axis of the swivel bearing in order to move the holding part between a use position of the eyeglass lenses and a non-use position of the eyeglass lenses in which they are folded upward in relation to the use position. In order to embody a holder of the above-mentioned type in a reliable and simply designed way, the first bearing parts and second bearing parts are embodied so that they are detachable from each other and are held together magnetically, for which purpose, at least one bearing part has at least one permanent magnet with a magnetization direction oriented in the direction of the swivel axis.

Abstract: The present disclosure relates to an electronic venetian blind, the electronic venetian blind, as a first invention, including: a first transparent conductive film layer; a plurality of unit electrochromic layers stacked on the first transparent conductive film layer, arranged separated from each other; and a plurality of second transparent conductive film layers each stacked on the plurality of unit electrochromic layers and independently applying current thereto.

Abstract: An objective includes a first lens group that has a positive refractive power and a second lens group that has a negative refractive power. The objective includes a first negative lens and satisfies 0.005?do1/ho1?0.1??(1) 0.005?hmin/hl?0.72??(2) 10 mm?L?100 mm??(3) 0.1?L/f?31??(4) when do1 is a thickness of the first negative lens, ho1 is an axial marginal ray height on a lens surface on the object side of the first negative lens, hmin is a minimum value of an axial marginal ray height in the second lens group, hl is a height of an axial marginal ray on a lens surface of the objective that is situated closest to the image side, L is a length of the objective, and f is a focal length of the objective.

Abstract: The present invention relates to a method for manufacturing a spectacle frame adapted to a spectacle wearer, particularly by means of 3D printing or other additive manufacturing techniques.

Abstract: An optical photographing lens assembly includes, 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 and a fifth lens element. The first lens element with positive refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof. The second lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof. The third lens element has two surfaces being both aspheric. The fourth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein two surfaces thereof are aspheric. The fifth lens element has an image-side surface being convex in a paraxial region thereof, wherein two surfaces thereof are aspheric.

Abstract: An OCT motion contrast data acquisition method using an optical coherence tomography device includes: controlling an optical scanner for scanning measurement light on a test subject; performing a first scanning control for obtaining a first OCT signal group including at least four temporally different OCT signals at a same scanning position; performing a second scanning control for obtaining a second OCT signal group including at least four temporally different OCT signals at the same scanning position; obtaining first motion contrast data based on the first OCT signal group obtained in the first scanning control; obtaining second motion contrast data based on the second OCT signal group obtained in the second scanning control; and obtaining third motion contrast data based on the first motion contrast data and the second motion contrast data.

Abstract: An optical system for a laser apparatus includes: a long-short axis reversing module that includes a splitter, a first mirror, and a second mirror positioned in a propagation path of an incident laser beam, where the first mirror includes a first submirror and a second submirror connected to each other at a predetermined angle therebetween. The optical system converts an incident laser beam having an asymmetric energy distribution into an emitted laser beam with a symmetric energy distribution.