Abstract: Display devices and actuators and other components for a display device are provided. Display devices are provided configured to alter an optical property by moving an amount of a first fluid through which light can pass. In some aspects, the first fluid is movable within a cavity by varying an amount of pressure on the cavity; and the display includes a means of varying the amount of pressure. The means can include an actuator. An actuator is provided that has a first cavity containing fluid and bounded at least in part by a first elastomer; a second cavity containing fluid and bounded at least in by part by a second elastomer; a channel connecting the first cavity to the second cavity; and a valve configured to be electrically operated into an open state or a closed state and thereby allow or block flow of the fluid through the channel.

Abstract: An optical system is provided, including a holder, a fixed module, a driving assembly, and a first resilient member. The holder is used for holding an optical element that defines an optical axis. The fixed module is movably connected to the holder and has a housing and a base connected to the housing. The base has a bottom surface parallel to the optical axis and a first pillar forming a first surface that is not parallel to the optical axis. The driving assembly drives the holder to move relative to the fixed module. The first resilient member is disposed on the first surface and movably connects the holder with the fixed module.

Abstract: An anti-fog and anti-impact rim clip for eye glasses comprising a flexible, unitary, and handheld body with a front end, a rear end, a first retention clip member defining a first clip opening flanked by two opposing first clip ends and defining a first clip retention channel spatially coupled to the first clip opening, a second retention clip member defining a second clip opening flanked by two opposing second clip ends and defining a second clip retention channel spatially coupled to the first clip opening, and a body ledge protruding outwardly from the first and second retention clip members, defining the rear end of the body, having a sealing edge, and having an upper support surface interposed between the sealing edge and the first and second retention clip members, the body operably configured to be selectively placed in a flexed configuration with the body forming an arcuate shape.

Abstract: On a first aspect, the spectacle lens is selected as including a transparent support in which is coded an identifier readable by an external reading tool for retrieving the identifier. A distant server is contacted using the identifier and data related to the spectacle lens is so gathered. On a second aspect, data related to the spectacle lens is provided to a predetermined database. Upon receiving a request issued from a requester, the database is accessed and at least some of the data is retrieved, the request including at least part of the identifier, and the retrieved data is sent to the requester.

Abstract: An optical module for protecting human eyes includes a first support element, first conductive paths, a lens, at least one second conductive path, and a light-emitting element. The first support element has a bottom plate and a sidewall on the bottom plate. The first conductive paths are in the first support element or outside the first support element. Each of the first conductive paths has a first end adjacent to a top surface of the sidewall and a second end adjacent to the bottom plate. The lens is located on the top surface of the sidewall. The second conductive path is electrically connected to the first ends of the first conductive paths. The light-emitting element is located on the bottom plate of the first support element. When a resistance difference is detected through the first and second conductive paths, the light-emitting element is switched off.

Abstract: The present application relates to a gel polymer electrolyte, a method for producing a gel polymer electrolyte, and an electrochromic device comprising the same. As the gel polymer electrolyte comprises a block copolymer, the present application can simultaneously satisfy high ionic conductivity, low turbidity and adhesiveness.

Abstract: The electrochromic device includes a first substantially transparent substrate coupled to a first transparent electrode, a second substrate coupled to a second electrode, and an electrochromic medium. The electrochromic medium includes at least one solvent and/or an electrolyte gel, at least one cathodic material, and at least one anodic material. The cathodic material can be a cathodic organic framework electroactive material and/or the anodic material can be an anodic organic framework electroactive material. At least one of the anodic and cathodic organic framework electroactive materials is electrochromic.

Abstract: A method for preparing an ophthalmic device containing an ultraviolet (UV) blocker is disclosed. The method involves (a) soaking an ophthalmic device in one or more first solvent solutions to swell the ophthalmic device; (b) soaking the swelled ophthalmic device in one or more second solvents solutions comprising a UV blocker to de-swell the ophthalmic device and entrap the UV blocker in the ophthalmic device, wherein the UV blocker is a benzotriazole and (c) sterilizing the de-swelled ophthalmic device.

Abstract: A near-eye display system includes a display panel to emit display light representative of a display image and a lens assembly disposed along an optical axis. The lens assembly includes a first phase mask plate having a first major surface facing the display and a second major surface opposite the first major surface, the second major surface implementing a first freeform Fresnel lens structure, and further includes a second phase mask plate adjacent and parallel to the first phase mask plate and having a third major surface facing the second major surface and an opposing fourth majors surface, the third major surface implementing a second freeform Fresnel lens structure. A pose of at least one of the first and second phase mask plates relative to the other is configured to be adjusted so as to adjust an optical power of the lens assembly.

Abstract: System and method utilizing a reconfigurable in real-time phase-modulating diffractive device (in a specific case—a 2D array of micro-mirror elements) in conjunction with another diffractive element (active or passive) to spatially steer a beam of polychromatic light such that light reaches the identified target without being substantially angularly dispersed.

Abstract: A spectacles device, that can be reversibly transformed into a bracelet, includes a nose bridge, two spectacles lenses and two temple systems. Each temple system includes an inner temple and an outer temple, the inner temple being made of a shape memory material with an initial curved shape and the outer temple being made of at least one material capable of elastic deformation. The outer temple includes a first cavity, extending longitudinally, capable of allowing the inner temple to slide inside the outer temple. The outer temple also includes a second cavity capable of receiving the nose bridge and the spectacles lenses. In addition, each of the spectacle lenses is respectively attached to one end of the inner temples by a first connecting element. The nose bridge is attached to each inner temple by at least one second connecting element.

Abstract: Methods for cutting strengthened glass are disclosed. The methods can include using a laser. The strengthened glass can include chemically strengthened, heat strengthened, and heat tempered glass. Strengthened glass with edges showing indicia of a laser cutting process are also disclosed. The strengthened glass can include an electrochromic film.

Abstract: An easily operable dimming device includes a dimming element operable to control the transmittance thereof for light, and a first notification device operable to make a notification of a piece of information on a change in transmittance of the dimming section.

Abstract: The invention relates to a catadioptric medical imaging system (1), in particular a surgical microscope (2). During surgery, it may be necessary to gain more information about a surgical cavity (6), in particular the type of tissue (29) at the inside walls (4) of the surgical cavity (6). To solve this problem, the catadioptric medical imaging system (1) according to the invention comprises a camera device (8) and a convex catoptric mirror (20) adapted to be inserted into the surgical cavity (6). The catoptric mirror (20) is mounted on an arm (22) and spaced apart from the camera device (8).

Abstract: The invention relates to a method for determining at least one ophthalmological parameter of a subject, consisting of the subject's semi-pupillary distances, comprising observing the subject's two eyes using an eye tracking device (30) borne by the subject and determining the aforementioned parameter at least from this observation.

Abstract: An electro-optic cell for an electrochromic device includes an electrochromic medium including an electrochromic compound M having at least one reduced state and at least one oxidized state. The electrochromic compound M can act as both the anodic material and the cathodic material in the electro-optic cell. The electrochromic medium can be capable of reversibly attenuating transmittance of light having a wavelength within a predetermined range.

Abstract: Ophthalmic devices including dynamic visual field modulation are disclosed herein. An example ophthalmic device may include a first liquid crystal cell including a first dichroic dye, a second liquid crystal cell including a second dichroic dye, wherein the first and second liquid crystal cells are in optical series so that incident light on the ophthalmic device passes through both the first and second liquid crystal cells, a photodetector positioned within the ophthalmic device to detect the incident light and coupled to output a data signal indicative of a property of the incident light, and control electronics coupled to receive the data signal from the photodetector in response to the incident light, and further coupled to independently and dynamically control the first and second liquid crystal cells based at least in part on the data signal.

Abstract: Provided is a zoom lens including a plurality of lens units, which consist of, in order from an object side to an image side: a positive first lens unit; a negative second lens unit; and a rear lens group including a plurality of lens units and having a positive refractive power as a whole, the first lens unit including a negative lens G1n arranged closest to the object side, and a plurality of positive lenses arranged on the image side of the negative lens, and the rear lens group includes a positive lens Grp. A lens unit arranged closest to the image side in the rear lens group includes the positive lens Grp. At this time, an Abbe number of the negative lens G1n, a refractive index of the positive lens Grp, and back focuses at a wide-angle end and a telephoto end, respectively, are appropriately set.

Abstract: A method of aligning an optical component in a laser system using diffraction patterns of alignment references includes: placing a first alignment reference in the path of a laser beam upstream of an optical component, the first alignment reference having first reference features forming a first diffraction pattern when illuminated by the laser beam; placing a second alignment reference in the path of the laser beam downstream of the first alignment reference and the optical component, the second alignment reference having second reference features forming a second diffraction pattern when illuminated by the laser beam; illuminating the alignment references and optical component with the laser beam; monitoring the combined diffraction pattern of the reference features of the alignment references downstream of the second alignment reference; and adjusting the relative position and/or orientation of the optical component towards the combined diffraction pattern indicating alignment of the optical component to t

Abstract: Provided are a nanostructured optical element, a depth sensor, and an electronic device. The nanostructured optical element includes: an array of a plurality of laser sources; a meta-pattern layer including a two-dimensional array of plurality of first nano-posts; and a deflecting layer between the light source and the meta-pattern layer. Each of the first nano-posts has a dimension smaller than a wavelength of light output from the plurality of laser sources. The deflecting layer is configured to direct light from the light source onto the meta-pattern layer.