Abstract: An electronic device includes at least one optical lens assembly. The optical lens assembly includes four lens elements, and the four lens elements are, in order from an outside to an inside, a first lens element, a second lens element, a third lens element and a fourth lens element. The first lens element has an outside surface being convex in a paraxial region thereof. The second lens element has an inside surface being convex in a paraxial region thereof. The fourth lens element has an inside surface being concave in a paraxial region thereof, wherein at least one of an outside surface and the inside surface of the fourth lens element includes at least one critical point in an off-axis region thereof.

Abstract: An article including a stack of layers including a high refractive index layer and a low refractive index layer; wherein at least one layer of the stack includes a wavelength selective absorbing material; and wherein the stack of layers has a transparent region with an edge at a wavelength in which light is absorbed by the wavelength selective absorbing material, and a reflection band with an edge at a wavelength in which light is reflected is disclosed. Compositions and optical devices including the article are also disclosed. Additionally, there is disclosed a method of making the article, the composition, and the optical device.

Abstract: A light transmissive element includes a light transmissive area. The element includes transparent substrates including respective transparent conductive films on respective surfaces thereof. The element has a structure in which the transparent substrates are disposed so as to face each other across a gap with the transparent conductive films facing each other and the gap is filled with an electrolyte. The electrolyte contains a metal ion and is prepared so as to allow the metal ion to be reversibly deposited on a surface of a transparent conductive film via electrodeposition according to a state of applied voltage between the transparent conductive film and the transparent conductive film. In the light transmissive area, a dividing line is formed in the transparent conductive film. The transparent conductive film includes divisional areas in the light transmissive area, the divisional areas being electrically insulated from each other by the dividing line.

Abstract: Disclosed herein is an optical imaging lens group, including, in order from an object side to an image side along an optical axis: a first lens group having a refractive power, in which an image side surface of a lens closest to an imaging side is concave; a second and a third lens group having a refractive power; and a fourth lens group having a negative refractive power, in which an image side surface of a lens closest to the imaging side is concave and includes at least one inflection point, wherein the first lens group is a fixed group, and the second, third and fourth lens groups move on the optical axis to realize continuous zoom from a wide-angle end to a telephoto end; and an on-axis distance TTL and an effective focal length ft of the optical imaging lens group at the telephoto end satisfy: 0.8<TTL/ft<1.5.

Abstract: An embodiment includes a light source. The light source may include a substrate and a diffuser. The substrate may include a first surface and a second surface. The second surface may be opposite the first surface. The diffuser may be carried by the substrate. The diffuser may be configured to receive an optical signal from the substrate after the optical signal propagates through the substrate and to control a particular profile of a resultant beam of the optical signal over two axes after the optical signal propagates through the integrated diffuser.

Abstract: A device (1) for emitting light to a beam-collimating lens (3), and a method for producing a beam-collimating lens (3). The device (1) comprises at least one laser light source (2) and a beam-collimating lens (3), in particular for fast axis collimation. The beam-collimating lens (3) comprises at least one biconvex collimation element (4) and is produced from silica glass, preferably by a fiber drawing process. The laser light source (2) emits visible laser light, typically having in a wavelength in the range of 400-550 nm.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative power, and a rear unit having a positive refractive power as a whole and including one or more lens units. A distance between adjacent lens units changes during zooming. The first lens unit includes a first subunit having a positive refractive power and a second subunit disposed on the image side of the first subunit. The first subunit includes a first positive lens having the smallest absolute value of a focal length among lenses included in the first subunit. The second subunit includes a second positive lens and a first negative lens having the smallest absolute value of a focal length among negative lenses included in the second subunit. A predetermined condition is satisfied.

Abstract: An objective testing of vergence dysfunction comprising the steps of: providing a head mounted goggle based stimulus generating eye tracking unit to the subject; presenting visual stimulus to the subject, wherein the visual stimulus is in the head mounted goggle based system and forms the optical target stimulus for at least one vergence test; obtaining objective physiologic response of the subject from the head mounted goggle unit based upon each of the visual stimulus presented to the subject in each test; and using the objective physiologic responses to diagnose the presence of vergence dysfunction. On objective portable head mounted goggle based stimulus generating eye tracking unit for vergence testing is discloses as is a method of method of vergence recovery convalescence.

Abstract: A zoom lens includes, in order from an object side to an image side, a first lens unit having a positive refractive power, a second lens unit having a negative refractive power, a third lens unit having a positive refractive power, and a rear unit that includes a plurality of lens units having negative refractive powers and a plurality of lens units having positive refractive powers, each distance between adjacent lens units changing during zooming. During zooming from a wide-angle end to a telephoto end, the first lens unit moves to the object side, and the second lens unit moves to the image side and thereafter moves to the object side. A predetermined condition is satisfied.

Abstract: The document discloses transferrable hyperbolic metamaterial particles (THMMP) that display broadband, selective, omnidirectional absorption and can be transferred to secondary substrates, allowing enhanced flexibility and selective transmission. A device having metamaterial nanostructures includes a substrate and metamaterial nanostructures engaged to the substrate to form an optical layer to interact with light incident to the optical layer to exhibit optical reflection or absorption or transmission that is substantially uniform over a spectral range of different optical wavelengths associated with materials and structural features of the metamaterial nanostructures, each metamaterial nanostructure including different material layers that are interleaved to form a multi-layer nanostructure.

Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage. In some cases, feedback may be used to monitor an optical transition. In these or other cases, a group of optically switchable devices may transition together over a particular duration to achieve approximately uniform tint states over time during the transition.

Abstract: Disclosed is a camera optical lens, comprising, from an object side to an image side in sequence: a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens having a negative refractive pwer; a fifth lens having a positive refractive power; and a sixth lens having a negative refractive power; wherein, the camera optical lens satisfies: ?2.50?f2/f??1.20; 3.50?(R5+R6)/(R5?R6)?12.00; 4.00?R10/R9; and 0.50?d5/d6?1.20; where, f denotes a focus length of the camera optical lens; f2 denotes a focus length of the second lens; R5 and R6 denote central curvature radii of an object side surface and an image side of the third lens; R9 and R10 denotes central curvature radii of an object side surface and an image side of the fifth lens.

Abstract: An optical lens assembly includes five lens elements and provides a TTL/EFL<1.0. In an embodiment, the focal length of the first lens element f1<TTL/2, an air gap between first and second lens elements is smaller than half the second lens element thickness, an air gap between the third and fourth lens elements is greater than TTL/5 and an air gap between the fourth and fifth lens elements is smaller than about 1.5 times the fifth lens element thickness. All lens elements may be aspheric.

Abstract: Aspects of this disclosure concern controllers and control methods for applying a drive voltage to bus bars of optically switchable devices such as electrochromic devices. Such devices are often provided on windows such as architectural glass. In certain embodiments, the applied drive voltage is controlled in a manner that efficiently drives an optical transition over the entire surface of the electrochromic device. The drive voltage is controlled to account for differences in effective voltage experienced in regions between the bus bars and regions proximate the bus bars. Regions near the bus bars experience the highest effective voltage. In some cases, feedback may be used to monitor an optical transition. In these or other cases, a group of optically switchable devices may transition together over a particular duration to achieve approximately uniform tint states over time during the transition.

Abstract: An optical lens comprising: a first part, comprising a first surface; a second part, comprising a second surface and at least one concave portion, wherein at least portion of the first surface and at least portion of the second surface are cylindrical. The second part further comprises a third surface, wherein the first surface and the second surface are not parallel with the third surface. The first part protrudes from the third surface. The optical lens can be attached to a barrel or an optical sensor without connection components or adhesive material. Therefore, the process of manufacturing the optical data capturing device can be simplified and related cost can be reduced.

Abstract: An actuator mechanism is provided for disposing a plurality of filters into and out of a camera line-of-sight. The mechanism includes a base, a pair of frames, an axial shaft, a plurality of filter housings and a plurality of pivotable drivers. The base includes an auxiliary platform. The frames flank the base, and the shaft is disposed between the frames. Each filter housing holds a corresponding optical filter and is disposable in a deployment position in the line-of-sight and a withdrawn position out of the line-of-sight. The drivers are disposed on the platform. Each driver corresponds to an associated housing and is rotatable along the shaft to swing at least one housing between deployment and withdrawn positions upon command.

Abstract: Eyewear is provided including a frame, and a camera connected with the frame, in which the camera is configured to be controlled by a remote controller. The camera may be configured to capture video and/or a photo. The eyewear may include data storage, and the camera may be connected to the data storage. A wrist watch may be configured to act both as a time piece and a controller of the camera. The eyewear may also include a heads up display and/or a video file player. The eyewear may also include an electro-active lens.

Abstract: Certain embodiments of the present invention are directed to therapeutic intervention in patients with eye-length-related disorders to prevent, ameliorate, or reverse the effects of the eye-length-related disorders. Embodiments of the present invention include methods for early recognition of patients with eye-length-related disorders, therapeutic methods for inhibiting further degradation of vision in patients with eye-length-related disorders, reversing, when possible, eye-length-related disorders, and preventing eye-length-related disorders. Additional embodiments of the present invention are directed to particular devices used in therapeutic intervention in patients with eye-length-related disorders.

Abstract: An optical assembly includes a first flexible membrane and a first optical element coupled with at least a first portion of the first flexible membrane. The optical assembly also includes a substrate having a curved surface. The first optical element is coupled to the curved surface of the substrate with the first flexible membrane. A method for making an optical assembly includes obtaining a first flexible membrane and a first optical element. The method includes coupling the first optical element with at least a first portion of the first flexible membrane and coupling, with the first flexible membrane, the first optical element to a curved surface of a substrate.

Abstract: A removable lens stack comprises a base layer including a substrate and an antistatic coating comprising quaternary ammonium cations on a first side of the substrate and one or more removable lens layers stacked on top of the base layer. Each removable lens layer may include a substrate, an antistatic coating comprising quaternary ammonium cations on a first side of the substrate, and an adhesive on a second side of the substrate opposite the first side. The one or more removable lens layers may be stacked on top of the base layer such that the second side of the substrate of each removable lens layer faces the first side of the substrate of an immediately preceding layer. Refractive indices of the substrate of the base layer, the substrate of each removable lens layer, and the adhesive of each removable lens layer may be matched (e.g., to within 0.2).