Abstract: A filter assembly is configured to optically couple a camera head to an endoscope. The filter assembly includes a first end adapted to be removably coupled to the camera head and a second end opposite and spaced apart from the first end, the second end adapted to be removably coupled to the endoscope. The filter assembly includes an optic housing disposed between the first end and the second end, the optic housing includes an optical path length maximizer and a first window. The first window has a first surface that is angled with respect to a plane that is perpendicular to a longitudinal axis of the optic housing so as to minimize a narcissus reflection within the optic housing and an optical filter to reject laser irradiation.

Abstract: A gonioscopic attachment can attach to a gonioscope and can include atraumatic retention elements that are configured to engage an eye to retain the gonioscope relative to the eye. The gonioscopic attachment can be configured to position the gonioscope so that at least a portion of the concave distal surface of the gonioscopic optical element is spaced apart from the eye, and/or so that the curvature of the distal surface is angularly offset from the curvature of the eye. The gonioscope can include a fixation point configured to be visible to the subject when the gonioscope is positioned on the eye. In some embodiments, the retention elements can be incorporated directly into the gonioscope. A coupling mechanism can couple the gonioscope to a lid speculum. The gonioscope can include a light pipe, which can be configured to directly light into the eye.

Abstract: An optical apparatus includes a first driver configured to move a focus lens in an optical axis direction, a second driver configured to move a first driver in the optical axis direction, and a controller configured to control driving of the first driver according to a moving amount of the first driver by the second driver.

Abstract: A LIDAR system includes a laser source configured to emit an optical beam; a detector module configured to receive and analyze the reflected optical signals; a scanning module having one or more scanning elements configured to control the direction of the optical beam with an acousto-optic deflector (AOD), wherein the AOD includes: an optical element having a surface with one or more steps formed thereon; a conductive layer formed on the surface with the steps; one or more crystals secured to each step; and electrodes positioned on each surface of each crystal.

Abstract: A lens barrel includes an optical element, a holding member configured to hold the optical element on an inner surface of the holding member, and an adhesive with which a side surface of the optical element and the inner surface of the holding member are adhered to each other. A hole is formed in the holding member from an outer surface toward the inner surface of the holding member. The adhesive is injected in the hole. A groove is formed in the inner surface of the holding member. The groove communicates with the hole. A fitting portion on the inner surface of the holding member disposed on an outer side of the groove is fitted to the side surface of the optical element.

Abstract: An optical system for restoring a natural image combined with a digital image, in order to characterise and highlight the objects represented on the natural image. The optical system includes an objective lens, an eyepiece, a semi-reflective plate, a processing unit, capturing capabilities and restoring capabilities. Other embodiments relate to a method for producing such a digital image.

Abstract: A loupe apparatus includes a support, a post coupled to the support, and a lens holder rotatably coupled to the post. The lens holder is rotatable around an axis of the post. The lens holder includes an arm, an extension coupled to the arm with a ball and socket joint, and a lens coupled to the extension.

Abstract: An information processing apparatus includes a first obtaining unit configured to obtain optical information about an image capturing apparatus including an imaging optical system including at least one movable lens movable in an optical axis direction, a second obtaining unit configured to obtain orientation information indicating an orientation of a lens barrel holding the imaging optical system, a third obtaining unit configured to obtain installation information indicating an installation direction of the image capturing apparatus, and a control unit configured to control a position of the movable lens based on the optical information, the orientation information, and the installation information.

Abstract: A phase modulation active device and a method of driving the phase modulation active device are provided. The phase modulation active device includes channels independently modulating a phase of incident light. The method includes selecting a first phase value and a second phase value to be used for the channels, setting a binary phase profile by allocating the selected first phase value or the selected second phase value to each of the channels quasi-periodically, in a sequence in which the channels are arranged, and driving the phase modulation active device, based on the set binary phase profile.

Abstract: A liquid lens apparatus includes a first substrate and a sensor. The first substrate has first and second opposing surfaces, a central portion, and a peripheral portion outside of the central portion. The sensor is formed lithographically on either the first or second surfaces of the peripheral portion of the first substrate such that the sensor is on an exterior surface of the liquid lens apparatus. The sensor is configured to detect a temperature of the liquid lens apparatus to enable compensation for thermal expansion or contraction of the liquid lens apparatus resulting from changes in temperature of the liquid lens apparatus.

Abstract: A lens includes a first surface, a second surface opposed to the first surface, a first outer circumferential part disposed at an outer circumferential side of the first surface, a second outer circumferential part disposed at an outer circumferential side of the second surface, three or more first reference parts provided to the first outer circumferential part, three or more second reference parts provided to the second outer circumferential part, and a first reference surface disposed at an outer circumferential side of the first outer circumferential part and the second outer circumferential part. The first surface and the second surface have a common design axis. A first imaginary plane including the first reference parts and a second imaginary plane including the second reference parts are perpendicular to the design axis respectively. The first reference surface extends in parallel to the design axis.

Abstract: An optical image capturing system comprising, 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 lens element with negative refractive power has a concave image-side surface. The second lens element, the third lens element and the fourth lens element have refractive power. The fifth lens element has refractive power. The sixth lens element with refractive power has an image-side surface being concave in a paraxial region and includes at least one convex shape in an off-axial region, wherein the surfaces thereof are aspheric. The seventh lens element with refractive power has an image-side surface being concave in a paraxial region and includes at least one convex shape in an off-axial region, wherein the surfaces thereof are aspheric.

Abstract: The invention relates to an ophthalmic lens (1) for a pair of sunglasses, said ophthalmic lens including at least one substrate (13), the lens (1) having a transmission spectrum such that: the transmittance at wavelengths shorter than 380 nm is lower than 1%; the spectrum includes a first transmittance maximum (MAX-1) having a transmittance higher than 8% between 390 nm and 420 nm; the spectrum includes a first transmittance minimum (MIN-1) between 426 nm and 440 nm; the transmittance between 450 nm and 500 nm is higher than 10%; the spectrum includes between 570 nm and 595 nm a second transmittance minimum (MIN-2); the spectrum includes between 590 nm and 620 nm a second transmittance maximum (MAX-2); the spectrum includes in the wavelength range comprised between 620 nm and 640 nm a third transmittance minimum (MIN-3); the transmittance at wavelengths longer than 640 nm is higher than 14%.

Abstract: A system for measuring eye tracking may include a chassis, which may include a main column and a head rest assembly. The head rest assembly may include a stimulus screen for displaying a video to the patient, an optical mirror, an eye tracking camera, and at least one head rest member for stabilizing the patient's head, relative to the stimulus screen. The system may also include: a base attached to a bottom of the main column to support the main column; an arm extending from the main column to support the head rest assembly; a touchscreen interface attached to the main column and configured to provide control of the system to a user; a camera computer housed in the main column for controlling the eye tracking camera; and a system computer housed in the main column for controlling the stimulus screen, data processing and other functions.

Abstract: Methods, systems and computer program products for displaying an augmented image using a holographic object via a mobile device are provided. Aspects include receiving, by a processor of the mobile device while displaying an image on a display screen of the mobile device, a user input. Aspects also include identifying a portion of the image based on the user input. Aspects further include outputting, by a holographic module of the mobile device, one or more dynamic holographic objects in three-dimensional space above the display screen, wherein the one or more dynamic holographic objects are determined at least in part based on the portion of the image identified.

Abstract: An optical element driving mechanism includes a movable portion, a fixed portion and a driving assembly. The movable portion is configured to connect an optical element having an optical axis. The fixed portion includes a base with a plate structure, wherein the movable portion is movable relative to the fixed portion. The driving assembly is configured to drive the movable portion to move relative to the base. A thickness direction of the base is perpendicular to the optical axis, the base has a recessed structure, and when viewed from the thickness direction of the base, the recessed structure is overlapped with the optical axis.

Abstract: Provided is a glass type electronic device in which an optical driving assembly is disposed in a spatially efficient position and which stably implements an optical path. The glass type electronic device includes a binocular lens provided to correspond to both eyes of a wearer, a lens frame fixed to the binocular lens and seated on a head of the wearer, an electronic component case fixed to the lens frame, an optical driving assembly mounted in the electronic component case for emitting an image light to the binocular lens, and a battery supplying power to the optical driving assembly. The electronic component case is disposed to correspond to an area between superciliary arches of the wearer.

Abstract: Three or more base optical materials are selectively combined into a trans-gradient index (GRIN) optical element (e.g., a lens). A wavelength-dependent index of refraction for light propagating perpendicular to the three or more optical materials equals: a volume fraction of a first optical material multiplied by a refractive index of the first optical material, plus a volume fraction of a second optical material multiplied by a refractive index of the second optical material, plus one minus the volume fraction of the first optical material and the volume of the second optical material all multiplied by the refractive index of a third optical material. The wavelength-dependent index of refraction distribution and a refractive index dispersion through the GRIN optical element may be independently specified from one another. A local refractive index at any point in the optical element is a fixed function of a refractive index of each individual optical material.

Abstract: An oscillator system includes an electrostatic oscillator structure configured to oscillate about an axis based on a deflection that varies over time; an actuator configured to drive the electrostatic oscillator structure about the axis, the actuator including a first capacitive element having a first capacitance dependent on the deflection and a second capacitive element having a second capacitance dependent on the deflection; a sensing circuit configured to receive a first displacement current from the first capacitive element and a second displacement current from the second capacitive element, to integrate the first displacement current to generate a first capacitive charge value, and to integrate the second displacement current to generate a second capacitive charge value; and a measurement circuit configured to receive the first and the second capacitive charge values and to measure the deflection of the electrostatic oscillator structure based on the first and the second capacitive charge values.

Abstract: This invention provides an integrated time-of-flight sensor that delivers distance information to a processor associated with the camera assembly and vison system. The distance is processed with the above-described feedback control, to auto-focus the camera assembly's variable lens during runtime operation based on the particular size/shape object(s) within the field of view. The shortest measured distance is used to set the focus distance of the lens. To correct for calibration or drift errors, a further image-based focus optimization can occur around the measured distance and/or based on the measured temperature. The distance information generated by the time-of-flight sensor can be employed to perform other functions. Other functions include self-triggering of image acquisition, object size dimensioning, detection and analysis of object defects and/or gap detection between objects in the field of view and software-controlled range detection to prevent unintentional reading of (e.g.