Abstract: The present invention is an illumination assembly (10) for providing illumination in an underwater medium which at least partially absorbs light. The subject matter illumination assembly (10) is characterized by comprising a light sensing unit (300) having at least one fluid chamber (420), pluralities of fluid intake openings (421), at least one light source (330) positioned inside the fluid chamber (420) and which emits light in at least one first spectrum, at least one photo-diode (310) in a manner facing said light source (330) and which generates signal related to the distribution in said first spectrum and optical intensity of the wavelengths of the light, which is emitted by the light source (330) and which passes through water; at least one LED array (150) which can emit light in the first spectrum; a control unit (120) which determines the operational setting of LED array (150) according to received signal.

Abstract: A lens includes a cover part and a light-shielding part. The cover part includes a lens part, a connection part, and a flange part which are formed of a thermosetting first resin and continuous to one another. The light-shielding part covers an outer lateral side of the connection part and is formed of a second resin having a greater light-absorptance or a greater light-reflectance than the first resin.

Abstract: Provided is a compact spectrometer including a light blocking layer having an aperture, a micro lens provided in contact with the light blocking layer, the micro lens being configured to collimate light having passed through the aperture, a filter array configured to filter the collimated light, and a photodetector array configured to detect the filtered light.

Abstract: A direct view light emitting diode (DV LED) display (296), includes (i) one or more DV LED modules (200) each containing at least one circuit board (300) having an array of surface mount device LEDs (100) defining a display surface (304), and (ii) a protective transparent polymeric film (302, 390) covering at least a portion of the display surface. The transparent polymeric film includes a polymer material layer (400), and an adhesive layer (402) laminated to the polymer material layer and directly attached to the display surface of the DV LED module. The transparent polymeric film may facilitate the use of touch screen technology with a DV LED display, and may be removable to allow repair or disassembly/reassembly of the DV LED display.

Abstract: An imaging device includes an image pickup element that captures an object image to generate image data, a sensor holder that holds the image pickup element, a sensor driver that moves the sensor holder in a plane orthogonal to an optical axis, a fixing mechanism that mechanically fixes the sensor holder at a predetermined position, and a controller that controls the fixing mechanism based on a signal indicating a degree of displacement of the image pickup element due to an external force.

Abstract: A photographing optical lens assembly 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 and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface. The third lens element has refractive power. The fourth lens element has refractive power, and an object-side surface and an image-side surface thereof are aspheric. The fifth lens element with negative refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface thereof are aspheric, and at least one of the object-side surface and the image-side surface thereof has at least one inflection point.

Abstract: An object of the present invention is to provide a light source lens that makes it possible to improve unevenness in a luminance distribution, an illumination unit, and a display unit. A light source lens (1) according to the present disclosure includes an incident surface on which light from a light-emitting device is incident, and an exit surface (20) that has a diffusing function at a center part (21) for light incident through the incident surface as well as a light-condensing function at at least a portion of an intermediate part (22) and a peripheral part (23) for the light incident through the incident surface.

Abstract: A head-mounted display apparatus according to the present disclosure includes an image generating module, a first deflecting element including a first deflecting portion configured to deflect, along a second optical axis intersecting the first optical axis, imaging light from the image generating module, and a second deflecting portion configured to deflect the imaging light along a third optical axis, a first diffraction element configured to diffract the imaging light from the second deflecting portion, and a second diffraction element configured to diffract the imaging light from the first diffraction element. A distance along the first optical axis between the image generating module and the first deflecting portion is longer than a distance along the third optical axis between the first diffraction element and the second deflecting portion.

Abstract: A gas sensing element includes a gas detection layer including a chemochromic pigment, with modifications towards enhancing shelf-life performance and false detection performance before use. The gas detection layer has an adhesion of greater than or equal to 0.2 N/25 mm. Also described are methods of making the aforedescribed element to attain enhanced shelf-life performance and false detection performance.

Abstract: According to the present invention, a measurement device includes a light emitting part configured to emit a plurality of spectral lights each including two or more spectra distributed at mutually different frequencies by causing adjacent frequency intervals to be different from each other, a focusing part configured to focus light by causing two or more spectra to overlap in an overlapping region in each of a plurality of different focal point regions of a sample and to be shifted from each other, and a detecting part configured to acquire a signal of fluorescence beats which emits light by interference light beats in each of a plurality of overlapping regions in the sample and includes information of the sample.

Abstract: A LiDAR system and method includes a pulse modulation circuit and an amplitude modulation circuit for applying pulse modulation and amplitude modulation to a continuous signal to generate a plurality of amplitude-modulated pulses of the continuous signal. An optical modulation circuit applies the amplitude-modulated pulses of the continuous signal to an optical signal to generate a pulse amplitude-modulated (PAM) optical signal. Optical transmission elements transmit the PAM optical signal into a region, and optical receiving elements receive reflected optical signals from the region. Receive signal processing circuitry uses quadrature detection to process the reflected optical signals.

Abstract: An actuator includes a torsion beam configured to support a target object, a first drive beam having a first drive source, and a connection beam configured to connect the torsion beam with the first drive beam, and a frame body configured to fix the first drive beam, wherein the actuator applies force of rotating the torsion beam in a direction around a first axis by a resonant drive of the first drive beam so as to cause the target object to swing, and when a structural non-linear constant of the actuator is ? [Nm/rad3] and a spring constant of the actuator is k [Nm/rad], [Equation 1] is satisfied: [Equation 1] ?=0.05×k?A×106??(1), where 3.5?A?15.5.

Abstract: A multifocal spectrometric device is capable of simultaneously performing a measurement of a plurality of sample with high sensitivity, with no restriction on the magnification. A multifocal spectrometric device is a device in which beams of signal light emitted from a plurality of predetermined observation areas on samples placed in a sample placement section are introduced into a spectrograph and thereby dispersed into spectra, the device including: a plurality of objective lenses (objective light-condensing sections) individually located at positions which respectively and optically face the plurality of observation areas; and spectrograph input sections provided in such a manner that each of the plurality of objective lenses has one corresponding spectrograph input section, for introducing signal light passing through the corresponding objective lenses into the spectrograph.

Abstract: An optical information detection apparatus includes: a needle-shaped light spot irradiation part that is configured to generate needle-shaped light spot concentrated over a length dimension g greater than a width dimension w along an optical axis, a shifting light spot conversion part that is configured to convert emission light emitted from positions of a detection object into shifting light spot, a shifting light spot reception part that is configured to receive the shifting light spot along a light-receiving plane, and an optical information acquisition part that is configured to acquire optical information from the positions from the shifting light spot.

Abstract: The system and method non-linear optical mapping of a detector array to expand the field of view. Outer edges of the sensor array having lower resolution spatial resolution in exchange for an expanded field of view. A lens is used to distort incoming signals to provide the expanded field of view and a processor is used to remove the distortion to provide the actual spatial angles for the incoming signals suing a look up table or an algorithm. The lens may create radial or linear distortion.

Abstract: A light sensor is provided. The light sensor includes at least one light sensor submodule, and each light sensor submodule includes a first light detector, a second light detector, a first linear polarizer, a second linear polarizer, a first phase delay film, and a second phase delay film. The first light detector is configured to obtain light intensity of first hybrid light resulting when hybrid light has passed through the first phase delay film and the first linear polarizer, and the second light detector is configured to obtain light intensity of second hybrid light resulting when the hybrid light has passed through the second phase delay film and the second linear polarizer, the hybrid light includes first light and second light, and after the hybrid light passes through the second linear polarizer, the first light is filtered out.

Abstract: Permeable antennas are presented. In embodiments, a permeable antenna may include a flux channel comprising a permeable material inside a trough in a conducting ground plane, the trough having a depth d and a width b; and a capacitive shunt admittance provided at the mouth of the trough. In embodiments, the capacitive shunt admittance may be one of: a slitted conducting plane or a single feed parallel solenoid, fed by a transmission line at a center loop. In embodiments, the conducting material may be anisotropic, and may include a ferromagnetic laminate comprising alternating thin metal films with thin insulating dielectrics. Related methods of providing permeable antennas are also presented.

Abstract: Disclosed are multiple-input, multiple-output (MIMO) antenna systems with high gain having an impedance bandwidth greater than 1 GHz and high side-lobe rejection. Suitable systems are configurable to have a radar lens with, for example, an 8×1 antenna array. Additionally, beam steering architecture that concentrates radiated energy through a dielectric lens to achieve a narrow high-gain beam.

Abstract: A wavelength variable interference filter includes: a first substrate on which a first reflection film is formed; and a second substrate that includes a movable portion on which a second reflection film facing the first reflection film is formed and a holding portion surrounding an outer circumference of the movable portion and holding the movable portion so that the movable portion is displaceable in a thickness direction of the second reflection film. The movable portion has long and short sides in a plan view. The holding portion includes a long-side holding portion formed along the long side and a short-side holding portion formed along the short side. The rigidity of the short-side holding portion is lower than the rigidity of the long-side holding portion.

Abstract: An optical filter that suppresses the occurrence of color mixing due to wavelength components on the short wavelength side relative to the desired transmission component. The optical filter includes a metal thin-film filter in which a plurality of openings are periodically arranged, and a first dielectric layer that coats a surface of the metal thin-film filter and coats or fills an interior of the opening of the metal thin-film filter. The optical filter also includes a second dielectric layer having a refractive index lower than a refractive index of the first dielectric layer and formed at least on an incidence surface side of the metal thin-film filter. The present technology can be applied to a hole array filter.

Abstract: The present disclosure describes subassemblies and optoelectronic modules in which an optics system, or a spacer laterally surrounding a cover glass, includes a flange which facilitates mechanical attachment of the optics system to the spacer.

Abstract: A photographing optical lens assembly 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 and a fifth lens element. The first lens element with positive refractive power has a convex object-side surface. The second lens element with negative refractive power has a convex object-side surface and a concave image-side surface. The third lens element has refractive power. The fourth lens element has refractive power, and an object-side surface and an image-side surface thereof are aspheric. The fifth lens element with negative refractive power has a concave image-side surface, wherein an object-side surface and the image-side surface thereof are aspheric, and at least one of the object-side surface and the image-side surface thereof has at least one inflection point.

Abstract: A laser scanning microscope apparatus includes an irradiation unit including an objective lens, a photodetector unit, an XY-scanning unit, and a Z-scanning unit. The irradiation unit focuses a laser beam with the objective lens to a specimen. The photodetector unit detects light generated from a position irradiated with the laser beam focused. The XY-scanning unit scans the laser beam in an X-direction perpendicular to an optical axis of the objective lens and in a Y-direction perpendicular to the optical axis and the X-direction. The Z-scanning unit scans the laser beam in a Z-direction parallel to the optical axis. When acquiring XY-two-dimensional image data by detecting the light while scanning the irradiated position in the X-direction and the Y-direction, the apparatus detects the light while scanning the irradiated position also in the Z-direction.

Abstract: An ultra-thin planar device is used for arbitrary waveform formation on a micrometer scale, regardless of the incident light's polarization. Patterned perforations are made in a 30 nm-thick metal film, creating discrete phase shifts and forming a desired wavefront of cross-polarized, scattered light. The signal-to-noise ratio of these devices is at least one order of magnitude higher than current metallic nano-antenna designs. The focal length of a lens built on such principle can also be adjusted by changing the wavelength of the incident light. All proposed embodiments can be embedded, for example, on a chip or at the end of an optical fiber.

Abstract: A spectroscopic assembly may include a spectrometer. The spectrometer may include an illumination source to generate a light to illuminate a sample. The spectrometer may include a sensor to obtain a spectroscopic measurement based on light, reflected by the sample, from the light illuminating the sample. The spectroscopic assembly may include a light pipe to transfer the light reflected from the sample. The light pipe may include a first opening to receive the spectrometer. The light pipe may include a second opening to receive the sample, such that the sample is enclosed by the light pipe and a base surface when the sample is received at the second opening. The light pipe may be associated with aligning the illumination source and the sensor with the sample.

Abstract: With the method of the invention a wavelength-dependent refractive index of a specimen medium, which is examined with a light microscope, is determined. With the light microscope, a specimen measurement at the specimen medium which has an unknown refractive index is performed, wherein illumination light is radiated to the specimen medium and detection light coming from the specimen medium is measured. With the specimen measurement, a specimen measurement focus position of the illumination and/or detection light is measured. Using a mathematical model, in which a focus position of illumination and/or detection light is defined in dependence of a refractive index of a medium, the refractive index of the specimen medium is derived from the specimen measurement focus position. Furthermore, a light microscope for carrying out the method is described.

Abstract: Described herein is a method and system for mitigating the effects of speckle in a laser Doppler system, and, in particular in a laser Doppler vibrometry/velocimetry system. A scan unit is provided in at least one of: a transmit path for scanning at least one beam from a transmitting antenna over a moving target surface and a receive path for scanning at least one reflected beam received from the moving target surface onto a receiving antenna. An averaging unit is provided prior to post-processing or demodulation to average electrical signals corresponding to the reflected beams. By averaging before demodulation, speckle in the output signal is mitigated.

Abstract: A device has a laser unit, which includes: a top-side p-type DBR region; which is on top of and in direct touch with an active region; which is on top of and in direct touch with a bottom-side n-type Distributed Bragg Reflector (DBR) region; which is on top of a n-type substrate. The laser unit further includes a voltage measurement anode touching or being in proximity to a top surface of the active region; and a voltage measurement cathode touching or being in proximity to a bottom surface of the active region. The voltage between the voltage measurement anode and the voltage measurement cathode is directly measured; and is utilized for determining characteristics of a laser self-mix signal of the laser unit, without having or using a monitor photo-diode.

Abstract: Techniques related to optical devices including a high contrast grating (HCG) lens are described herein. In an example, an optical device includes a transparent substrate. A laser emitter or detector at a first side of the transparent substrate to emit or detect a laser light transmitted via the transparent substrate. A HCG lens is at a second side of the transparent substrate to transmit and refract the laser light.

Abstract: A multilayer PCB (160) for optical transmission is presented. The multilayer PCB includes a first layer (1510), a second layer (1520), and a transparent layer (212) between them. The transparent layer may have a first compartment (1851), which may have a first mirror (214) operable to reflect a beam of light (260B) into the first compartment of the transparent layer in a plurality of directions (260C) perpendicular to the direction of the beam of light, thereby transmitting throughout the first compartment an optical signal carried by the beam of light in said plurality of directions such that one or more other mirrors disposed in the first compartment of the transparent layer are able to receive a beam of reflected light (260C) carrying the optical signal. The multilayer PCB may further include a second mirror (1508) in the first compartment for reflecting a wave of reflected light (260C) carrying the optical signal toward an optical receiver (1705).

Abstract: An off-axis hybrid surface three-mirror optical system comprises a primary mirror, a secondary mirror, a tertiary mirror, and an image sensor. A reflective surface of the primary mirror is a sixth-order polynomial freeform surface of xy. A reflective surface of the secondary mirror is a sixth-order polynomial aspheric surface of xy. A reflective surface of the a tertiary mirror is a spherical surface of xy.

Abstract: Systems, methods, and devices for generating a depth map of a scene are provided. The method comprises projecting, onto the scene, a codeword pattern including a plurality of light points including a first set of light points projected at a first intensity and a second set of light points projected at a second intensity greater than the first intensity. The method further comprises detecting, from the scene, a reflection of the codeword pattern. The method further comprises generating a first depth map layer at a first resolution. The method further comprises generating a second depth map layer at a second resolution lower than the first resolution. The method further comprises generating the depth map of the scene, wherein the depth map includes depth information for the scene according to each of the first depth map layer and the second depth map layer.

Abstract: An imaging device includes: an optical element including a metal layer adapted to be brazed and arranged on an outer peripheral surface of the optical element; a first frame body including a metal part adapted to be brazed and arranged at least on an inner peripheral surface and an outer peripheral surface of the first frame body, the inner peripheral surface being brazed onto the outer peripheral surface of the optical element; and a second frame body including a metal part adapted to be brazed and arranged at least on an inner peripheral surface of the second frame body, the inner peripheral surface being brazed onto the outer peripheral surface of the first frame body. A coefficient of thermal expansion of the first frame body is closer to a coefficient of thermal expansion of the optical element than a coefficient of thermal expansion of the second frame body.

Abstract: A screen member irradiated with image display light is provided. The screen member includes an optical element having an optical surface configured to reflect or refract light, wherein an absolute value of a local curvature of the optical surface changes in one direction of a plane perpendicular to an optical axis of the optical element, and becomes a local minimum at at least one position.

Abstract: The present disclosure relates to a particle and energy detection system. More particularly, the present disclosure relates to coherent particle generation/detection devices configured to detect a plurality of particles (or energy quanta) which are caused to be combined by superposition upon impacting the detector and imparting a portion of their kinetic energy to the detection process. Additionally, a low power particle generating system that uses a particle generator device configured to generate a plurality of excitation signals which are caused to be focused and impinge upon a separating mechanism is provided so as to direct the particle beam to optimize the system's detection capability.

Abstract: A reading module of the present disclosure is provided with a light source, an optical system, and a sensor. The optical system images, as reading light, reflected light of light radiated from the light source to an illumination object. The sensor converts the reading light imaged by the optical system into an electric signal. The optical system is provided with a mirror array in which a plurality of reflection mirrors are disposed in an array in a prescribed direction and a plurality of aperture stop portions that adjust an amount of the reading light. Each of the reflection mirrors is disposed at a prescribed distance from an adjacent one of the reflection mirrors in a prescribed direction.

Abstract: The present disclosure relates to a head mounted display device, and a head mounted display device according to an exemplary embodiment includes: a display panel including a plurality of pixels; and a microlens array that includes a plurality of lenses that respectively overlap the plurality of pixels wherein the plurality of pixels and the plurality of lenses have one-to one correspondence.

Abstract: A semiconductor laser device includes a mounting board, a semiconductor laser element disposed on the mounting board, and an optical member made of silicon having a {110} plane and a {100} plane. One of the {110} plane and the {100} plane is fixed on the mounting board, and the other one of the {110} plane and the {100} plane is covered by a reflective film to reflect laser light emitted from the semiconductor laser element.

Abstract: A fire detection and suppression system correcting fire detection based on wind. Wind may affect both the apparent position of the fire detected by the fire detectors and also the suppressant jet being delivered by a monitor. Typically wind results in shifting of estimated fire location away from the real fire in the direction of wind. Similarly the suppressant jet will also be diverted in the same direction. The system comprises fire detectors for acquiring two-dimensional fire location information for a fire. A wind sensor acquires wind information, often in region of the fire. A system controller then compensates the three-dimensional fire location information based on the wind information. Additionally, the position of fog/jet monitors is preferably compensated based on the wind information. The jet pressure setting is also ideally determined based on the wind.

Abstract: According to one aspect, the invention concerns a device for transporting and controlling light pulses for lensless endo-microscopic imaging and comprises: a bundle of N monomode optical fibers (Fi) arranged in a given pattern, each monomode optical fiber being characterized by a relative group delay value (Ax) defined relative to the travel time of a pulse propagating in a reference monomode optical fiber (F0) of the bundle of fibers (40), an optical device for controlling group velocity (50) comprising a given number M of waveplates (Pj) characterized by a given delay (8tj); a first spatial light modulator (51) suitable for forming from an incident light beam a number N of elementary light beams (Bi) each of which is intended to enter into one of said optical fibers, each elementary beam being intended to pass into a given waveplate such that the sum of the delay introduced by said waveplate and the relative group delay of the optical fiber intended to receive said elementary light beam is minimal in abs

Abstract: A dual sensor camera that uses two aligned sensors each having a separate lens of different focal length but the same f-number. The wider FOV image from one sensor is combined with the narrower FOV image from the other sensor to form a combined image. Up-sampling of the wide FOV image and down-sampling of the narrow FOV image is performed. The longer focal length lens may have certain aberrations introduced so that Extended Depth of Field (EDoF) processing can be used to give the narrow FOV image approximately the same depth of field as the wide FOV image so that a noticeable difference in depth of field is not see in the combined image.

Abstract: Robots having varying touch sensitivity are provided. A robot may include a plurality of deformable sensors with differing levels of depth resolution and spatial resolution for detecting a pose and force associated with an object. Each deformable sensor may have an enclosure comprising a deformable membrane, the enclosure configured to be filled with a medium. Each deformable sensor may further include an optical sensor, disposed within the enclosure, having a field of view configured to be directed toward a bottom surface of the deformable membrane. The robot may also include a first portion and a second portion, each comprising at least one deformable sensor of the plurality of deformable sensors.

Abstract: A light unit for general purpose or decorative lighting having a directional light source, a light transmissive optic arranged to direct light from the light source and a plurality of reflectors arranged to receive light from the optic and/or light source and at least partially a reflect portion of the light in a predetermined distribution pattern, the optic being further arranged to mechanically couple together the light source and reflectors to hold the light source, optic and reflectors in a predetermined spatial relationship.

Abstract: The disclosed technology relates to an inspection apparatus that includes a stage configured to retain a specimen for inspection, an imaging device having a field of view encompassing at least a portion of the stage to view a specimen retained on the stage, a lens having a view encompassing the specimen retained on the stage, and a plurality of lights disposed on a moveable platform. The inspection apparatus can further include a control module configured to control a position of the stage, an elevation of the moveable platform, and a focus of the lens. In some implementations, the inspection apparatus includes an image processing system configured for receiving image data from the imaging device, analyzing the image data to determine a specimen classification, and automatically selecting an illumination profile based on the specimen classification. Methods and machine-readable media are also contemplated.

Abstract: A cantilever used in a scanning probe microscope includes a supporting section, a lever section, and a protrusion section, which is a probe. A crystalline carbon composite layer including a crystalline carbon nanomaterial and a metal material, a melting point of which is 420° C. or lower, is deposited on a distal end portion of the protrusion section.

Abstract: Luminaires are described herein employing waveguides and associated architectures for dynamic alteration of illuminance distribution patterns. In one aspect, a luminaire described herein comprises a waveguide body and light sources having differing angular positions relative to the waveguide body for altering illuminance distribution patterns of the luminaire according to one or more activation patterns of the light sources. The differing angular positions can be located at the perimeter of the waveguide body and/or at one or more internal locations of the waveguide body.

Abstract: An exposure apparatus for transferring a pattern from a reticle to a workpiece, a pellicle being positioned near the reticle, includes a heat transfer frame, an illuminator, and a temperature controller. The heat transfer frame is configured to be positioned near the pellicle, the heat transfer frame defining a beam aperture. The illuminator directs a beam through the beam aperture and the pellicle at the reticle. The temperature controller controls the temperature of the heat transfer frame to control the temperature of the pellicle. The illuminator can direct the beam from a beam source, such as an EUV beam source. Additionally, the temperature controller can cryogenically cool the heat transfer frame.

Abstract: Structures and formation methods of a light-sensing device are provided. The light-sensing device includes a semiconductor substrate and a light-sensing region in the semiconductor substrate. The light-sensing device also includes a light-reflective element over the semiconductor substrate. The light-sensing region is between the light-reflective element and a light-receiving surface of the semiconductor substrate. The light-reflective element includes a stack of multiple pairs of dielectric layers. Each of the pairs has a first dielectric layer and a second dielectric layer, and the first dielectric layer has a different refractive index than that of the second dielectric layer.

Abstract: A method includes defining a virtual space including a virtual point of view associated with a first user and, a first and second object. The method includes defining a field of view based on a position of the virtual point of view and a detected motion of the user. The method includes generating a field-of-view image corresponding to the field of view. The method includes displaying the first object in a first mode; and displaying the second object in a second mode. The method includes detecting a position of gaze of the first user. The method includes detecting contact between the position of gaze and the first object. The method includes displaying the first or second object in a third mode in response to detection of the contact. The method includes moving the position of the virtual point of view to the first object in response to detection of the contact.

Abstract: The present invention provides a package structure of an optical apparatus which includes a substrate, a light emitting device, a light sensing device, and a light barrier member. The light emitting device is disposed on the substrate and electrically connected to the substrate. The light emitting device is for emitting light. The light sensing device is disposed on the substrate and is a chip scale package (CSP) device. The light sensing device is for receiving light reflected by an object. The light barrier member is disposed around a periphery of the light sensing device.