Abstract: A lens barrel, that can be made thinner, has a lens holding frame that holds a lens; a driving part that is held by the lens holding frame; aperture blades including a first engaging part and a second engaging part; a first member that engages with the first engaging part and can be rotated around an optical axis by the driving part; and a second member that engages with the second engaging part and is provided with the aperture blade arranged between the second member and the first member.

Abstract: The proposed technology includes ophthalmic apparatuses and systems that allow transmission of a digital slit-lamp output (both of the visible light as well as of infra-red wavelength) over the web in “real-time” alongside face-to-face audio-visual communication between the various parties. The digital output of the camera will be in a format that is compatible with direct transmission over the web. This allows a person(s) at the remote site to see the slit-lamp imagery as if the remote examiner(s) were on site in the presence of the patient and simultaneously video-chat with the operator of the microscope to provide tele-consultation. The features also facilitate collaborative care between several providers, as well as patient representative(s), by enhancing the audio-visual communication between parties with the actual slit lamp imagery of the patient in real time.

Abstract: An ophthalmic apparatus includes an objective lens, an illumination optical system, a mounting unit, an imaging optical system, a communication unit, and a controller. The illumination optical system is configured to generate illumination light using light from a light source, and to illuminate a subject's eye with the illumination light through the objective lens. The mounting unit is configured to allow an external device including a sensor to be mounted so that the sensor is arranged on an imaging optical path. The imaging optical system is configured to guide returning light of the illumination light from the subject's eye to the imaging optical path. The communication unit has a communication function with the external device. The controller is configured to control the illumination optical system and to control the sensor through the communication unit to synchronize with control for the illumination optical system.

Abstract: An imaging lens module has an optical axis, an object side and an image side. The imaging lens module includes a plastic barrel, an optical lens assembly, an image-side assembled element and a light blocking element assembly. The plastic barrel includes a first contacting surface, which is close to an image-side end of the plastic barrel. The image-side assembled element is disposed close to the image-side end of the plastic barrel. The image-side assembled element is in a tube shape and extends from the object side to the image side. The image-side assembled element includes a second contacting surface and an inner protruding portion, and the second contacting surface is disposed close to an object-side end of the image-side assembled element and correspondingly to the first contacting surface. The plastic barrel and the image-side assembled element contact each other via the first contacting surface and the second contacting surface.

Abstract: The present disclosure relates to a technical field of optical lenses, and discloses a camera optical lens. The camera optical lens includes six lenses. An order of the six lenses is sequentially from an object side to an image side, which is shown as follows: a first lens having a positive refractive power, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a negative refractive power, a fifth lens having a positive refractive power, and a sixth lens having a negative refractive power. The camera optical lens provided by the present disclosure has excellent optical characteristics, and further has characteristics of large aperture, wide-angle, and ultra-thin, especially suitable for mobile phone camera lens assemblies and WEB camera lenses, which are composed of camera components having high pixels, such as CCD and CMOS.

Abstract: Thin-film devices, for example, multi-zone electrochromic windows, and methods of manufacturing are described. In certain cases, a multi-zone electrochromic window comprises a monolithic EC device on a transparent substrate and two or more tinting zones, wherein the tinting zones are configured for independent operation.

Abstract: The present systems and methods provide a mechanism to assess viewer behavior, features of stimuli, and the interaction between viewer behavior and stimuli. The systems and methods described herein for quantifying blink response and blink inhibition provide moment-by-moments measurements of viewer engagement by measuring what is or is not engaging enough to warrant viewers' inhibition of blinking. The present disclosure describes measures of visual scanning, eye movements, blink data, and blink timing data to derive a measure of how engaged a person is with what he or she is looking at. Blink-related data as a measure of viewer engagement provides a mechanism for determining the most engaging spatial and temporal aspects of a stimulus.

Abstract: A method of at-home monitoring of eye conditions using a head mounted display that is capable of establishing a visual model associated with a patient. The visual model may include data related to a quality of the patient's vision. The patient may use the system to establish a visual model periodically, such as daily, and the system may compare the visual model to previous visual models and send an alert to the patient's physician if changes meeting a given criteria are detected. This may allow the physician to immediately take steps to save the patient's eyesight where a delay in treatment may result in vision loss.

Abstract: An imaging lens system has an optical axis and includes a plastic lens barrel and an imaging lens assembly disposed in the plastic lens barrel. The plastic lens barrel surrounds the optical axis and includes an object-side surface, an image-side surface, an inner annular portion and an outer annular portion. The object-side and image-side surfaces are oppositely disposed and substantially perpendicular to the optical axis. The inner and outer annular portions are connected to the object-side and image-side surfaces. The inner annular portion has an inner parallel annular surface, and the outer annular portion has a first outer annular surface and a gate trace. The imaging lens assembly includes a plurality of imaging lens elements. One of the imaging lens elements has an outer diameter larger than ?2 millimeters. The one of the imaging lens elements has an outer edge in physical contact with the inner parallel annular surface.

Abstract: According to certain embodiments, an electronic device comprises a housing; and a camera module disposed in an inner space of the housing and including: a barrel having an opening; and a plurality of lenses with aligned centers with an image sensor in an inner space of the barrel, wherein the plurality of lenses comprises at least one other lens and a first lens disposed closest to the opening and having a first outer diameter, wherein the first lens includes: a lens portion, forming an effective area of the first lens, the lens portion exposed to the opening; a connecting portion, forming a portion of an ineffective area of the first lens, extended from the lens portion and inclined at an angle in a first direction away from the lens portion; and a flange portion, forming another portion of the ineffective area of the lens portion, extended from the connecting portion in a second direction substantially perpendicular to a stack direction of the plurality of lenses, wherein the barrel includes: a head portion

Abstract: The systems and methods described herein provide improved techniques for displaying imaging markers for verifying biometry. A method includes receiving an indication to initiate a first optical coherence tomography (OCT) scanning of an eye; initiating, based on the received indication, the first OCT scanning of the eye; generating, based on the first OCT scanning, a first OCT image of the eye; detecting, based on the first OCT image, a retinal pigment epithelium (RPE) and a fovea in the eye; based on the detecting, causing a first enhanced OCT image to be displayed to a user, the first enhanced OCT image displaying: a first virtual marker segmenting at least a portion of the detected RPE, and a second virtual marker, where the second virtual marker visually identifies a location of the detected fovea, and where the second virtual marker is a radial line through the location of the detected fovea.

Abstract: Aspects of the present disclosure include systems with multiple lasers having modified beam profiles. Systems according to certain embodiments include a first laser that produces a first beam of light, a second laser that produces a second beam of light and a beam shaping component that receives the first beam of light and the second beam of light at substantially the same position from different angles of incidence and is configured to generate from the first beam of light and the second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis. Methods for irradiating a sample in a flow stream with the output beam of light are also described. Kits having one or more lasers and a beam shaping component configured to generate from a first beam of light and a second beam of light an output beam of light having a predetermined intensity profile along a horizontal axis are also provided.

Abstract: The invention relates to a lens (1) having an adjustable focal length, comprising: a container (2) enclosing an internal space (3) of the container (2), wherein the internal space (3) is filled with a transparent liquid (L), and wherein the container (2) comprises a circumferential lateral wall (20) surrounding said internal space (3), wherein the lateral wall (20) is connected to a transparent cover element (21) and to a transparent and elastically deformable membrane (22) such that the liquid (L) is arranged between the membrane (22) and the cover element (21), an annular lens shaper (4) connected to the membrane (22) so that an inner circumferential edge (40) of the lens shaper (4) defines a central area (23) of the membrane (22) and light passing said area (23) is refracted depending on a curvature of said area (23), and an actuator configured to move the lens shaper (4) towards or away from the cover element (21) to adjust said curvature of said area (23) of the lens (1) and therewith the focal length of

Abstract: A lens barrel 10 comprises a substantially cylindrical first lens group unit 11 that holds a lens L1, and a substantially cylindrical front frame unit 12 that is disposed in a state of being close to the outer peripheral surface side of the substantially cylindrical first lens group unit 11. The first lens group unit 11 has a rectilinear key 11c that protrudes outward in the radial direction on the outer peripheral surface of the lens L1 on the image plane side in the optical axis direction. The front frame unit 12 has an inside diameter that is smaller than the outside diameter of the first lens group unit 11 in the portion where the rectilinear key 11c is provided. The first lens group unit 11 and the front frame unit 12 are formed so that a gap is formed between the outside diameter of the first lens group unit 11 and the inside diameter of the front frame unit 12 at a position opposite the rectilinear key 11c in the radial direction.

Abstract: Disclosed is an optical article including a substrate having a front main face and a rear main face, the rear main face being coated with a multilayer antireflection coating. The outermost layer of the multilayer antireflection coating is a layer A containing silicon, carbon and fluorine atoms, the layer A having a refractive index lower than or equal to 1.45 and a thickness higher than or equal to 20 nm. The mean light reflection factor Rv on the rear main face between 380 nm and 780 nm is lower than or equal to 1.5%. The mean reflection factor Ruv on the rear main face between 280 nm and 380 nm, weighted by the function W (2) defined in the ISO 13666:1998 standard, is lower than or equal to 7%, for an angle of incidence of 35°.

Abstract: A head-up display apparatus includes a display panel configured to display an image, and a reflecting mirror configured to reflect light from the display panel. An optical distance between the reflecting mirror and the display panel is changed to continuously change a display position of a virtual image from a distant place to an adjacent position such that a virtual image obtained by being reflected at an upper portion of a windshield is formed farther than a virtual image obtained by being reflected at a lower portion of the windshield when viewed from a viewpoint position of a driver.

Abstract: An optical element driving mechanism is provided, including an immovable part, a movable part, and an elastic assembly. The movable part is movable relative to the immovable part. The movable part is connected to an optical element. The elastic assembly is elastically connected to the immovable part and the movable part. The elastic assembly includes a base and a plurality of wires. The wires are electrically independent, and each of the wires includes a first portion extending along a first direction. When viewed from the first direction, the first portions at least partially overlap each other.

Abstract: The invention relates to a method for producing embedded hydrogel contact lenses each having a magnetized insert that comprises magnetic particles and is centrally embedded in the bulk hydrogel material of the embedded hydrogel contact lens. During molding, a magnetized insert can be centered and held in position in a lens mold by using a magnet placed below the lens mold. The invention also relates to an embedded hydrogel contact lens produced from a method of the invention.

Abstract: An optical imaging system includes a first lens having an object-side surface that is convex; a second lens having a refractive power; a third lens having a refractive power; a fourth lens having a refractive power; a fifth lens having a refractive power and an object-side surface that is concave; and a sixth lens having a refractive power and an object-side surface that is concave, wherein the first lens through the sixth lens are sequentially disposed in numerical order from an object side of the optical imaging system toward an imaging plane, and the optical imaging system satisfies the conditional expressions 0.7<TL/f<1.0 and TL/2<f1, where TL is a distance from the object-side surface of the first lens to the imaging plane, f is an overall focal length of the optical imaging system, and f1 is a focal length of the first lens.

Abstract: In described embodiments, a device and method for diagnosing brain and neurological issues is provided. The device measures the performance of Convergence, Divergence, and binocular tracking capabilities of a subject's eyes, which can be used to determine whether a subject has experienced a brain or other neurological event.