Abstract: A system for performing measurements of an eye comprises: a measurement tool that measures the eye, at least one rest that maintains a facial measurement position and defines a centering rest portion that maintains a lateral facial measurement position; an adjuster mechanism that moves an objective of the measurement tool relative to the eye; and a processing unit configured to control the system. The unit controls the system to position, for a first eye, the objective at a predefined first pre-scan position; scan the objective away from the first pre-scan position until the system detects a pupil of the first eye; and trigger one or more measurements of the first eye dependent on the system detecting the pupil of the first eye.

Abstract: A lens driver or lens driver circuitry for an ophthalmic apparatus comprising an electronic system which actuates a variable-focus optic is disclosed herein. The lens driver is part of an electronic system incorporated into the ophthalmic apparatus. The electronic system includes one or more batteries or other power sources, power management circuitry, one or more sensors, clock generation circuitry, control algorithms and circuitry, and lens driver circuitry. The lens driver circuitry includes one or more power sources, one or more high voltage generators and one or more switching circuits. Specifically, the lens driver comprises an H-bridge/H-bridge controller for providing the proper voltage, including polarity, to drive the electronic included in the ophthalmic apparatus.

Abstract: A binocular optoelectronic apparatus for screening defects in the sight and for measuring the visual acuity of a user, includes a casing having a right-hand first aperture and a left-hand first aperture, which apertures are intended to be placed facing the right eye and the left eye of a user facing in a first gaze direction, respectively. This apparatus includes: a touchscreen placed so that a first zone of the touchscreen is located in the interior of the casing and a second zone of the touchscreen is accessible from the exterior of the casing; electronic elements suitable for displaying a plurality of optotypes on a first portion of the first zone; and an optical system configured to form a right-hand first image of the first portion of the first zone in the direction of the first right-hand aperture at a first vision distance along a first optical path.

Abstract: An optical image capturing system 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, a fifth lens element, a sixth lens element and a seventh lens element. The first, the second and the third lens elements all have refractive power. The fourth lens element with refractive power has both surfaces being aspheric. The fifth lens element with refractive power has both surfaces being aspheric. The sixth lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof and both surfaces being aspheric. The seventh lens element with refractive power has an image-side surface having at least one convex shape at a peripheral region thereof, wherein both surfaces being aspheric, and at least one surface has at least one inflection point thereon.

Abstract: A vehicular rearview assembly with a mirror element having a curved or rounded edge on the first surface that is fully observable from the front of the assembly, a complex peripheral ring, and a user interface with switches and sensors that activate and configure pre-defined function(s) or device(s) of the assembly in response to the user input applied to the user interface. The mirror element is supported by a hybrid carrier co-molded of at least two materials, a portion of which is compressible between the housing shell and an edge of the mirror element. The peripheral ring may include multiple bands. Electrical communications between the electronic circuitry, the mirror element, and the user interface utilize connectors configured to exert a low contact force, onto the mirror element, limited in part by the strength of adhesive affixing the EC element to an element of the housing of the assembly.

Abstract: In order to modulate different spectral components of a light beam independently of one another, the light beam is split into a plurality of spectral components which can be modulated at different locations of a spatial light modulator.

Abstract: A window transmissivity control assembly having a power source with scalable size and power capacity is provided. The assembly includes an insulated glazing unit including a variably transmissive glazing, a photovoltaic module attached to the insulated glazing unit and electrically coupled to the variably transmissive glazing, and a control module having a control circuit for controlling transmissivity of the glazing and a battery for providing power to the glazing. The photovoltaic assembly is attached to an exterior face portion of the insulated glazing unit, and a control module is attached to an interior face portion of the insulated glazing unit. Each module may extend from a first end of the insulated glazing unit to an opposing second end of the insulated glazing unit, wherein the length of the module being substantially the same as the distance between the first and second ends of the insulated glazing unit.

Abstract: A manufacturing method of a Blazed diffraction grating configured to diffract incident light and made of a CdTe or CdZnTe crystal material includes the step of forming a plurality of grating grooves in a processed surface of a work through machining using a processing machine for the Blazed diffraction grating. The forming step forms the grating grooves so that among surfaces of gratings formed by the forming step, a surface that receives the incident light most is set to a (110) plane as a crystal orientation of the crystal material.

Abstract: An opto-mechanical assembly including a housing and an internally supported optical element, such as a lens, mounted along an axis. At least one of the housing and optical element includes a radially extending chamber. Adhesive disposed in the chamber interacts with the housing and the optical element to prevent axial motion between the optical element and housing.

Abstract: The present invention relates to improved contact lens products which not only have an improved and sustainable wettability. The contact lens product of the invention comprises a soft hydrogel contact lens immersed and autoclaved in a packaging solution including a polyoxyethylene-polyoxybutylene block copolymer and a high molecular weight copolymer of N-vinylpyrrolidone and at least one amino-containing vinylic monomer. The present invention also provides methods for making contact lens products of the invention.

Abstract: In a lens barrel and an imaging apparatus, improvement in impact resistance and size reduction can be enhanced. The lens barrel includes the following elements; a guide frame including a rotation restricting rib; a first group frame; and a second group frame. The first group frame includes a first guide part engaged outside the rotation restricting rib. The relative rotation of the first frame is restricted by the rotation restricting rib and the first group frame is capable of moving along the optical axis direction. The second group frame includes a second guide part engaged inside the rotation restricting rib. The relative rotation of the second frame is restricted by the rotation restricting rib and the second group frame is capable of moving along the optical axis direction. A cam pin is formed on the outer peripheral surface of the first group frame and engages a cam cylinder disposed on the outer periphery of the first group frame.

Abstract: Provided is a telephoto lens including a first lens group, the first lens group including: a first lens element including: an object side lens surface facing an object side; and an image side lens surface facing an image side; and a prism configured to bend an optical path within the first lens element, wherein the first lens element and the prism are formed as a single body, wherein an inclined surface of the prism is provided between the object side lens surface and the image side lens surface, and wherein the following relationship is satisfied: 1.3?L1/Li, where L1 corresponds to a length of an optical path within the first lens element along an optical axis of the first lens elements and Li corresponds to a length of an optical path between an optical element provided closest to an image plane and the image plane along the optical axis.

Abstract: An optical element includes an optical surface having a multilayer film. The multilayer film comprises a stack that includes a first film having a first refractive index for a used wavelength and a second film having a second refractive index for the used wavelength smaller than the first refractive index. Outermost layers of the stack are configured by the first films. A film configuration of the stack has symmetry along with a stack direction. The predetermined conditional expressions are satisfied.

Abstract: A method by which fundus photographs that are corrected for scattered light can be realised by using a digital fundus camera. The fundus is illuminated and a photograph of the fundus is realized. The photographed area is greater than the illuminated are. The scattered light intensity is determined and is used for correction. Measurement points for determining the scattered light intensity are defined in the non-illuminated area. Values of the scattered light intensity determined at the measurement points are averaged. Average-scattered light intensity thus determined is subtracted from the intensity values of the photograph to correct the photograph.

Abstract: Apparatuses with actuators having actuator-side attachment areas disposed thereon, an optical element having mirror-side attachment areas disposed thereon and springs are described, wherein an optical element is connected to actuators via two or four springs.

Abstract: An optical waveguide is provided having at least first and second diffraction regions, the first diffraction region being arranged to diffract image-bearing light propagating along the waveguide so as to expand it in a first dimension and to turn the image-bearing light towards the second diffraction region, the second diffraction region being arranged to diffract the image-bearing light so as to expand it in a second dimension and to release it from the waveguide as a visible image. The first diffraction region is formed by first diffraction grating embedded within the waveguide, arranged to present a substantially similar profile to the image-bearing light when incident upon the grating from a given angle above or below the grating such that the polarization of the image bearing light is rotated by substantially similar amounts, but in opposite directions, by successive interactions with the first diffraction region.

Abstract: An optical device includes: a plurality of optical components arranged along a first direction, each optical component having an optical surface, a first surface intersecting with the optical surface, and a second surface intersecting with the optical surface and the first surface; and a base member that integrally holds the plurality of the optical components and has a first holding surface and a second holding surface, the first holding surface holding the optical components and fixing positions of the optical components in a second direction intersecting with the first direction in a state of being in contact with the optical components on the first surface, the second holding surface holding the second surface of the optical components with an adhesive interposed therebetween and fixing positions of the optical components in a third direction intersecting with the first direction and the second direction.

Abstract: An optical system, which may include a fish-eye lens including a whole view angle larger than 180 degrees, includes in order from an object-side to an imaging-side, a first lens group including a negative focal distance, an aperture, and a second lens group including a positive focal distance. An infrared cutting coat is coated on a lens surface that includes curvature of a lens among lenses included in the second lens group.

Abstract: Binocular en face OCT imaging during ophthalmic surgery may be performed with an OCT scanning controller that interfaces to an OCT scanner used with a surgical microscope. The OCT scanner may generate left and right sample beams, and receive left and right measurement beams, respectively, to generate left and right scan data. The OCT scanning controller may process the left and right scan data to generate left and right en face images for respective viewing from binoculars in the surgical microscope to obtain an intraoperative stereoscopic en face view of interior portions of the eye.

Abstract: A camera arrangement for a vehicle includes a camera and a prism. The camera is arranged behind a windshield of the vehicle. The prism is positioned between the windshield and the camera and is coupled to the windshield by a coupling medium. The prism has a light entry surface facing the windshield and a light exit surface facing an optical imaging component of the camera. The light entry surface and/or the light exit surface is non-flat by which the prism at least partially compensates for refraction resulting from curvature of the windshield.