Abstract: A digital light path length modulator includes an optical path length extender (OPLE) and a polarization modulator. The OPLE has two light paths with different path lengths, such that the light having a first polarization is directed through a first light path, and the light having a second polarization is directed through a second light path.

Abstract: A lens assembly actuating module includes a holder, a metal yoke, a lens actuator and a Hall sensor. The holder includes a central opening, at least three metal connectors insert-molded with the holder, at least two metal terminals insert-molded with the holder, and a plurality of plated metal layers disposed on a surface of the holder. The metal yoke is coupled with the holder. The lens actuator is for carrying a lens unit including an optical axis. The lens actuator is movably disposed in the metal yoke. The lens actuator includes at least one elastic element and at least three metal hanging wires. The Hall sensor is disposed on one of the plated metal layers of the holder. The Hall sensor is for detecting a movement of the lens unit along a direction perpendicular to the optical axis.

Abstract: A photonic parallel network can be used to sample combinatorially hard distributions of Ising problems. The photonic parallel network, also called a photonic processor, finds the ground state of a general Ising problem and can probe critical behaviors of universality classes and their critical exponents. In addition to the attractive features of photonic networks—passivity, parallelization, high-speed and low-power—the photonic processor exploits dynamic noise that occurs during the detection process to find ground states more efficiently.

Abstract: Dielectric resonators provide a building block for the development of low-loss resonant metamaterials because they replace lossy ohmic currents of metallic resonators with low-loss displacement currents. The spectral locations of electric and magnetic dipole resonances of a dielectric resonator can be tuned by varying the resonator geometry so that desired scattering properties are achieved.

Abstract: This lens drive device is provided with an AF drive part and image stabilization drive part using the driving force of a VCM. a pair of power supply suspension wires and a pair of signal suspension wires couple an image stabilization fixed part with an AF fixed part. The AF fixed part includes an AF power supply line, a signal line, a coil power supply line, and an AF control part. The AF control part includes: a Hall element detecting the position of the AF movable part in the optical axis direction; a coil control part controlling the energizing current for an AF coil on the basis of a control signal supplied through the signal suspension wires and the detection results of the Hall element; and an autofocus circuit board whereon the Hall element and the coil control part are mounted.

Abstract: A detachable rear-view mirror includes an exterior component, an interior component, and a strap. The exterior component includes a mirror portion that is coupled to a reflective surface and an exterior strap attachment portion that is connected to a strap, and is shaped such that the mirror portion is adapted to be detachably mounted to an exterior of a door of a vehicle and the exterior strap attachment portion is adapted to be inserted into a window channel of the door. The interior component includes an interior strap attachment portion and a window frame portion, and is adapted to be inserted into the window channel and the window frame portion is adapted to be detachably mounted to a window frame of the door. The strap includes a first end connected to the exterior strap attachment portion and a second end connected to the interior strap attachment portion.

Abstract: An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system; and a spacer disposed between the sixth and seventh lenses, wherein the optical imaging system satisfies 0.5<S6d/f<1.4, where S6d is an inner diameter of the spacer, f is an overall focal length of the optical imaging system, and S6d and f are expressed in a same unit of measurement.

Abstract: A spatial light modulator (SLM) is disclosed, wherein the SLM has a substrate comprising an array of MEMS-based mirror elements that is periodic with small pitch (<3 microns) and high fill factor (>80%) in a first dimension. Each mirror element includes a micromirror whose height above the substrate is controlled via a vertical comb-drive actuator, which is located completely beneath the micromirror in the first dimension. As a result, mirror element can control the phase of light reflected from its micromirror. In some embodiments, the SLM includes an array of mirror elements that is periodic with small pitch and high fill factor in two dimensions. In such embodiments, the actuator, as well as tethers for supporting the micromirror above the substrate, are located completely beneath the micromirror, thereby enabling high fill factor in both dimensions.

Abstract: An eye-mountable device is provided that includes an eyelid occlusion sensor. The eyelid occlusion sensor is used to detect winks, squints, downwards glances or looks, blinks, or other eye-based gestures generated by the user. Based on the detected gestures, an optical power of an adjustable lens of the device may be changed or some other operations could be performed by the eye-mountable device. Such operations could include toggling the optical power of the lens between first and second power levels due to the user squinting, looking downward, or performing some other gesture. Additionally or alternatively, such operations could include setting the optical power of the lens to a first optical power unless the user is looking downward, in which case the optical power of the lens could be set to a second optical power.

Abstract: A pad shape for a support assembly is optimized to provide universal fitting characteristics to Head-Mounted Display (HMD) devices. The pad shape enables a display of a single HMD device to be reliably aligned within multiple users' fields-of-view notwithstanding significant variations of shape and size between these users' heads. Optimal positioning of the display within the multiple users' fields-of-view may be achieved by positionally constraining the HMD device against a portion of the head that varies relatively slightly as compared to other portions of the head. The contact pad includes a curved region having a shape defined by a high order polynomial that corresponds to an empirically determined best fit surface. Empirically determining one or both of the best fit surface or the high order polynomial may include aligning a plurality of “forehead” point clouds that map the geometries of a sample set of users' foreheads.

Abstract: A method for the examination of a sample includes illuminating the sample in a sample plane along a sample line with an illuminating light beam. The sample is acted upon by a depletion or switching light beam, which overlaps in the sample plane in an overlap region with the illuminating light beam. Part of fluorescent light emanating from the sample plane is detected as detection light originating from a first subregion of the overlap region, in which the probability of an interaction of the sample molecules with the depletion or switching light beam is greater than 90%, and/or originating from a second subregion which is at least partially surrounded by the first sub-region and/or in which the depletion or switching light beam has a zero point, while at the same time the fluorescent light originating from outside the first subregion and the second subregion is suppressed and not detected.

Abstract: An optical device able to change the direction of propagation of a light beam. The optical device allows a wide range of adjustment of the direction of the light beam, said optical device including, in the direction of propagation of the light beam, an overall divergent group of lenses and an overall convergent group of lenses. The overall divergent group of lenses contains, in the direction of propagation of the light beam, a fixed lens, and an optical module comprising at least one movable optical element able to change the direction of propagation of the light beam emerging from the overall divergent group of lenses.

Abstract: A lens driving mechanism is provided for driving a first lens and a second lens to move, wherein light enters the first and second lenses along a light incident direction. The lens driving mechanism includes a first base movably connected to the first lens, a first driving assembly, and a second driving assembly. The first driving assembly has a first magnet and a first coil corresponding thereto for moving the first lens. The second driving assembly has a second magnet and a second coil corresponding thereto for moving the second lens. The first magnet is adjacent to the second magnet, and the polar direction of the first magnet is parallel to the light incident direction.

Abstract: Provided is an optical unit and a display device capable of suppressing the occurrence of stray light by suppressing the incidence of light onto a peripheral region of a panel. In the optical unit, a first panel, a second panel, and a third panel are arranged to face a dichroic prism. A first light-emitting element is provided in a display region of the first panel, the second panel, and the third panel, and metal wiring is provided in a peripheral region. Here, a light shielding layer is provided between the dichroic prism and the peripheral region of each of the first panel, the second panel, and the third panel. Thus, even when a part of color light that should be reflected passes through a dichroic mirror, the leaked light is absorbed by the light shielding layer.

Abstract: Aspects for a display screen anti-peeping gear are described herein. As an example, the aspects may include a screen protector; a support member arranged on the edge of the screen protector, wherein the support member is provided with a through-hole corresponding to the position of the display screen camera, and a cover arranged beside the through-hole which can close and open the through-hole.

Abstract: A method for optimizing focus of an optical system passively includes the following steps: discretizing optical positions with respect to precision requirements; initializing an idle counter to zero, going to the initial optical position, initializing a best position to current position, clearing a sharpness array; calculating correspondence; adding a sharpness value to a sharpness array; calculating a longest increasing subsequence on the sharpness array; checking if the longest increasing subsequence length increases; clearing the idle counter; setting the best position to the current position; incrementing the idle counter; checking if the termination threshold is reached; checking if the current position corresponds to the end of discrete optical positions if the termination threshold is not reached; driving motors to the next position; optionally improving the best position; going to the best position and terminating the method.

Abstract: A lens driving device (12) includes a lens support (20) configured to support a lens, a frame member (22) surrounding a periphery of the lens support (20), and a support mechanism (38) configured to support the lens support (20) so as to be freely movable relative to the frame member (22) in a direction orthogonal to an optical axis direction of the lens. The support mechanism (38) includes a support portion (44, 48) and a guiding portion (46, 50). The support portion (44, 48) and the guiding portion (46, 50) extend in the direction orthogonal to the optical axis direction of the lens, and the support portion (44, 48) is in contact with the guiding portion (46, 50) at least at two points in a cross section in the optical axis direction of the lens.

Abstract: An optical coating has a set of layers to reflect a predetermined range of wavelengths, the set of layers including two or more pairs of alternating first and second layers, the first layers having a first refractive index, n1, and the second layers having a second refractive index, n2, greater than the first refractive index n1. The second layers each include a first distribution of nanoparticles of a first material. The layers exhibit a spectral characteristic that shifts a portion of the incident light to a first range of wavelengths and that directs light of the first range of wavelengths to a surface-enhanced Raman scattering (SERS) layer. The SERS layer is configured with a second distribution of conductive nanoparticles of a second material to further shift the light of the first range of wavelengths to a second range different from the first range, according to the second distribution of nanoparticles.

Abstract: A lens driving device is provided which includes a housing supporting a magnet; a bobbin having a first coil disposed on the outer peripheral surface thereof and moved by an interaction between the magnet and the first coil; an upper elastic member and a lower elastic member coupled to the bobbin and the housing; and a sensing coil disposed at the housing to be spaced apart from the magnet and generating an induced voltage by an interaction with the first coil, the sensing coil being wound around a side part of the housing so as to rotate in a clockwise direction or in a counterclockwise direction with reference to an optical axis.

Abstract: An eyecup for an optic can include an elastic body forming an eye receiver and a viewing cavity, the elastic body configured to move between a relaxed state and a compressed state. The eyecup can include a diaphragm formed from or attached to an inner surface of the elastic body, the diaphragm including one or more flaps configured to be in a closed position when the elastic body is in the relaxed state such that the one or more flaps block sight of an optic through the viewing cavity, and to be in an open position when the elastic body is in the compressed state such that the one or more flaps allow sight of an optic through the viewing cavity. The eyecup can include one or more magnets disposed on at least one of the one or more flaps to move with the one or more flaps, and one or more sensors disposed in a fixed location and configured to sense a magnetic field or flux thereof of the one or more magnets to sense the one or more magnets when the flaps are in or near or moving toward the open position.