Abstract: LiDAR systems and methods for detecting objects in a region of interest (ROI) comprising: a radiation source for emitting an output beam at a pre-determined wavelength towards the ROI; a detection system for detecting an input beam from the ROI, the detection system including: a return optical fiber configured to capture the input beam, the input beam including a desired portion having a wavelength corresponding to the pre-determined wavelength of the output beam, and a noise portion having wavelengths outside of the pre-determined wavelength, the return optical fiber including: a Fiber Bragg Grating for filtering the input beam to separate the desired portion of the input beam from the noise portion of the input beam; and a single broadband detector for receiving the desired portion of the input beam.

Abstract: According to the present disclosure, a first guide unit is provided with a first opening portion through which light in an optical path connecting a first optical element unit and a second optical element unit passes, a second guide unit is provided with a second opening portion through which light in the optical path connecting the first optical element unit and the second optical element unit passes, the first guide unit is provided with a duct for sending air to the first optical element unit, and the air coming out from the first opening portion hits the second optical element unit via the second opening portion.

Abstract: The distance measuring apparatus according to the present invention may comprise: a light emitting unit for emitting light; a light receiving unit comprising one or more cells configured to receive incoming light and output a signal corresponding to an amount of the received light; a motor; a first rotary unit for changing a path of outgoing light which is emitted from the light emitting unit while being rotated by the motor; and a second rotary unit for changing a path of the incoming light so that the incoming light enters the light receiving unit while being rotated by the motor synchronously with the first rotary unit. Therefore, it is possible to simplify the structure of the apparatus which measures distances in a wide angular range.

Abstract: One embodiment is directed to a compact system for scanning electromagnetic imaging radiation, comprising a first waveguide and a second waveguide, each of which is operatively coupled to at least one electromagnetic radiation source and configured such that output from the first and second waveguides is luminance modulated and scanned along one or more axes to form at least a portion of an image.

Abstract: To suppress unevenness in intensity distribution of output light in a longitudinal direction of a light guide body, a lighting apparatus includes a rod-shaped light guide body, and light source units provided in end faces of the body, where the light guide body includes first and second reflecting surfaces that perform diffuse reflection on light input from the light source, and a light output surface that outputs reflected light from both of the reflecting surfaces to the outside. The first reflecting surface includes a first diffuse reflection pattern having discontinuous pattern portions provided near the end faces in the longitudinal direction of the light guide body and a continuous pattern portion in the center portion, and the second reflecting surface includes a second diffuse reflection pattern to reduce a ripple in the longitudinal direction of a quantity of the light reflected from the first diffuse reflection pattern and output.

Abstract: An illumination apparatus includes a light source and an elongated light guide, wherein the light guide includes an emission surface that emits light from the light source and a reflection surface that reflects the light to the emission surface, the reflection surface includes a plurality of diffusion portions that diffuse the light, the diffusion portions have a shape of part of a sphere recessed from the reflection surface, a depth of the diffusion portions from the reflection surface is equal to or greater than 16.5% and equal to or smaller than 50% of a diameter of the sphere, and a width of the diffusion portions is equal to or greater than 0.1 mm and equal to or smaller than 50% of a width of the reflection surface.

Abstract: Provided is an illumination apparatus that applies light to an original, the illumination apparatus including: a light source; and a rod-shaped light guide including: an incident surface that receives the light from the light source; a reflection surface provided with a diffusion portion that diffuses the light incident on the incident surface; and an emission surface that emits, to the original, the light diffused by the diffusion portion. An area of the light guide is reduced by an inclination of the light guide from the incident surface side to a middle part in a longitudinal direction of the light guide, and the light guide is provided with the diffusion portion from the incident surface side to the middle part on the reflection surface.

Abstract: [Problem] To provide an optical communication device and the like with which the optical signals output by multiple light output units can be set with an accurate wavelength interval. [Solution] An optical communication device equipped with: multiple light output units that output optical signals of mutually different wavelengths; a multiplexing unit that outputs a wavelength-multiplexed signal by multiplexing the multiple optical signals output from the multiple light output units; a reference light output unit that outputs reference light serving as a reference; a wavelength generation unit that, on the basis of the reference light, outputs multiple light beams having a wavelength interval in accordance with a prescribed frequency; and a wavelength control unit that controls the wavelength of the optical signals output by the light output units in accordance with the interference component between the wavelength-multiplexed signal and light with the wavelength of at least one of the multiple light beams.

Abstract: The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface or any reference object with particular markers. The precise coding reference data can be generated by detecting surface features of the working surface.

Abstract: Provided are a speckle-based authentication apparatus, an authentication system that includes the speckle-based authentication apparatus, and an authentication method using the speckle-based authentication apparatus. The speckle-based authentication apparatus includes an optical source configured to radiate light onto an object that is placed apart from the optical source; and a detector configured to detect a speckle pattern generated from the object in response to the light being radiated onto the object and detect location information of the object. Thus, the object is authenticated by comparing the speckle pattern detected by the detector with a speckle pattern stored in advance.

Abstract: An emissions detection apparatus for at least one of detecting, identifying, diagnosing and geolocating an electronic device or an information transmitted from the electronic device includes an emissions collections device connected to an antenna receiving emission of an electromagnetic energy emitted from the electronic device and collecting a spectral data emitted from the electronic device; one or more algorithms processing the collected spectral data, algorithms selected from a group consisting of a peak detection algorithm, a multiple peak detection algorithm, a harmonic correlation algorithm, a non-harmonic correlation algorithm, a time correlation algorithm, a phase correlation algorithm, and a duty cycle timing correlation algorithm; and one or more algorithms matching the processed spectral data to an emissions template, wherein a match of the processed spectral data with the emissions template at least one of detects, identifies, diagnoses and geolocates the electronic device or the information tran

Abstract: An optical sensing device for using light to locate objects or features in a field of view comprises a light source; a controllable lens having two states and being controllable between them, for example a multifocal lens having two or more foci for focusing light from the light source; and a sensor able to sense light reflected from an object, to determine information of the object. The use of two or more foci adds dynamic range to optical sensing to allow for reliable detection over a wide range of distances.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible, tapered, light-transmissive holes are penetrated in a lighttransmissive pattern through at least a portion of the light resistant material using a laser beam having a focal width less than the smallest diameter of the tapered holes.

Abstract: A system including an imaging device with a line of sight to an object, capable of producing a glare, which is to be captured in an image, a light source configured to illuminate a surface of the object, and an optical barrier positioned along the line of sight between the imaging device and the object, said optical barrier being sized and positioned to reduce reflected light off the surface of the object directed along the line of sight from being captured in the image. Methods are also disclosed.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. The light resistant material has a first side and a second side. Substantially invisible holes penetrate between the first surface and the second surface in a predetermined light-transmissive display pattern. The second surface is exposed to a side curing light that is substantially parallel to the second surface at the invisible holes thereadjacent. A light-conducting curable filler is applied into the invisible holes from the first surface. Surfaces of the light-conducting curable filler are cured in the invisible holes at the second surface with the side curing light. The remaining curable filler in the invisible holes is cured.

Abstract: The invention relates to an optical measuring device (1) comprising a housing (3), in which at least one optical transmitter (20) for emitting at least one transmission beam (22, 24) and at least one optical receiver are arranged, a covering plate (5) closing off the housing and forming a transmission window (10) and a reception window (7), with the at least one transmission beam (22, 24) emerging from the housing through the transmission window (10). In order to provide a measuring device (1) with an outer surface (14) which is as flat as possible and in order to achieve a reduction in disturbance signals which can be traced back, inter alia, to the reflection of the transmission beam (22, 24) on the transmission window (10), the outer side (5.1) of a covering plate (5) is arranged substantially perpendicular to the emission direction and the transmission window (10) is embodied with a tilt with a predetermined tilt angle (?).

Abstract: An optical device and method providing multi-channel bulk optical power monitoring is disclosed. The device and method may include a scanning mirror, a plurality of input optical fibers, a plurality of output optical fibers, and at least one sample optical fiber optically connected to a photodetector. The device and method may further include a first reflective surface and a second reflective surface. The first reflective surface may reflect light from the input optical fibers to the second reflective surface. The second reflective surface may reflect a first portion of the light into the output optical fibers and pass a second portion of the light to the scanning mirror. The scanning mirror may reflect samples of the second portion of the light into the at least one sample optical fiber.

Abstract: A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible holes penetrate through at least a portion of the light resistant material in a predetermined light-transmissive display pattern.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible, tapered, light-transmissive holes are penetrated in a light-transmissive pattern through at least a portion of the light resistant material using a laser beam having a focal width less than the smallest diameter of the tapered holes.

Abstract: A component measurement apparatus includes a confocal optical system including a laser emitting laser light, a collimating lens collimating the laser light emitted from the laser, an objective lens condensing the collimated light having exited the collimating lens in order to illuminate internal tissue of an object of measurement, a half mirror redirecting reflected light reflected by the internal tissue of the object of measurement and refracted by the objective lens, a pin hole through which the reflected light redirected by the half mirror passes, and a light-receiving element receiving the reflected light having passed through the pin hole. The component measurement apparatus also includes a data analyzer section measuring a component of the object of measurement in accordance with data output from the light-receiving element. In the component measurement the apparatus, a focal position of the objective lens is adjustable along an optical axis.

Abstract: A component measurement apparatus includes a laser that emits non-collimated laser light, an objective lens that condenses the non-collimated laser light emitted from the laser in order for the laser light to illuminate internal tissue of an object of measurement without collimating the laser light, a half mirror that redirects reflected light reflected by the internal tissue of the object of measurement and refracted by the objective lens, a pin hole through which the reflected light redirected by the half mirror passes, a light-receiving element that receives the reflected light having passed through a pin hole, and a data analyzer section that measures a component of the object of measurement in accordance with data output from the light-receiving element.

Abstract: An entrance denial security system comprises an entrance barrier closing an entrance into a secured area having a plurality of structural tubular elements with hollow cores forming a rigid integral barrier. At least one optical fiber sensor line is laced through the hollow cores of the structural elements for detecting a fault condition signifying an unauthorized intrusion attempt. A processor in communication with the fiber sensor line generates a fault signal in response to the occurrence of a fault condition and identifying the entrance where the fault condition occurred. A communication device operatively associated with the processor communicates the fault signal and an alarm so that a proper security response can be made to the fault condition. The system further comprises a plurality of intrusion sensors disposed at certain locations.

Abstract: A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request.

Abstract: An optical device and method providing multi-channel bulk optical power monitoring is disclosed. The device and method may include a scanning mirror, a plurality of input optical fibers, a plurality of output optical fibers, and at least one sample optical fiber optically connected to a photodetector. The device and method may further include a first reflective surface and a second reflective surface. The first reflective surface may reflect light from the input optical fibers to the second reflective surface. The second reflective surface may reflect a first portion of the light into the output optical fibers and pass a second portion of the light to the scanning mirror. The scanning mirror may reflect samples of the second portion of the light into the at least one sample optical fiber.

Abstract: A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. The light resistant material has a first side and a second side. Substantially invisible holes penetrate between the first surface and the second surface in a predetermined light-transmissive display pattern. The second surface is exposed to a side curing light that is substantially parallel to the second surface at the invisible holes thereadjacent. A light-conducting curable filler is applied into the invisible holes from the first surface. Surfaces of the light-conducting curable filler are cured in the invisible holes at the second surface with the side curing light. The remaining curable filler in the invisible holes is cured.

Abstract: A fiber scanning system is provided comprising a housing (102) with a fiber (13), the fiber (13) comprising a fixed part and a free end, the fixed part being attached to a bottom of the housing (102) and the fiber (13) extending parallel to the wall of the housing (102). At least one electrical coil (12) is attached to the wall at a position in between the fixed part and the free end of the fiber (13), a winding of the electrical coil (12) being in a plane parallel to the fiber (13). A magnet (11) is attached to the fiber (13), such that the electrical coil (12) may induce a force on the magnet (11). The magnet (11) is attached to the fiber (13) at a position just before or after the electrical coil (12), a width of the magnet (11) being such that the magnet (11) extends over the electrical coil (12).

Abstract: The present invention relates to a laser processing apparatus and the like having a structure for implementing at the same time both an efficient laser processing in the place where a laser beam is difficult to reach and a laser processing without damages in the place where the laser beam is easy to reach. This laser processing apparatus comprises a laser light source, an irradiation optical system applying a laser beam to an object while scanning the laser beam, a photo-detector detecting the laser beam applied from the irradiation optical system, and a control section of making switching between a continuous oscillation and a pulse oscillation of the laser beam at the laser light source.

Abstract: A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request.

Abstract: The present invention relates to a laser processing apparatus and the like having a structure for implementing at the same time both an efficient laser processing in the place where a laser beam is difficult to reach and a laser processing without damages in the place where the laser beam is easy to reach. This laser processing apparatus comprises a laser light source, an irradiation optical system applying a laser beam to an object while scanning the laser beam, a photo-detector detecting the laser beam applied from the irradiation optical system, and a control section of making switching between a continuous oscillation and a pulse oscillation of the laser beam at the laser light source.

Abstract: A beam power source transmits a signal indicating power availability, receives a request for power in response, and beams power in response to the request.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. The light resistant material has a first side and a second side. Substantially invisible holes penetrate between the first surface and the second surface in a predetermined light-transmissive display pattern. The second surface is exposed to a side curing light that is substantially parallel to the second surface at the invisible holes thereadjacent. A light-conducting curable filler is applied into the invisible holes from the first surface. Surfaces of the light-conducting curable filler are cured in the invisible holes at the second surface with the side curing light. The remaining curable filler in the invisible holes is cured.

Abstract: A laser projection device includes: an incidence optical system condensing laser light, a scanning device deflect the laser light in a first scanning direction and a second scanning direction with a mirror, and a projection optical system guiding the deflected light to a surface to be scanned. The scanning device performs the deflection in the first scanning direction by resonant driving and performs the deflection in the second scanning direction by non-resonant driving. The incidence optical system has different optical powers in the first scanning direction and the second scanning direction, and makes light incident on the scanning device in a convergent state in the first scanning direction and in a substantially parallel light state in the second scanning direction. The projection optical system has a negative optical power in the first scanning direction.

Abstract: Fiber optic scanner and method for transmitting and receiving optical signals and range imaging camera including fiber optic scanner. The fiber optic scanner includes a light guide array including individual light guides arranged such that a first end has first ends of the individual light guides arranged in an image plane of collimating optics and a second end has second ends of the individual light guides arranged in a circular manner. A central light guide includes a first end arranged at a center of the circularly arranged second ends of the individual light guides and a motor driven reflector arranged to guide light emerging from the circularly arranged ends of the individual light guides into the central light guide.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible holes penetrate through at least a portion of the light resistant material in a predetermined light-transmissive display pattern.

Abstract: An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible, tapered, light-transmissive holes are penetrated in a light-transmissive pattern through at least a portion of the light resistant material using a laser beam having a focal width less than the smallest diameter of the tapered holes.

Abstract: A support member and an optical fiber are disposed side by side inside a tubular outer envelope of an optical probe to extend in the longitudinal direction of the outer envelope. A light deflectors which deflects light emitted from the front end of the optical fiber in the circumferential direction of the outer envelope is provided and the light deflector is rotated in response rotation of the support member by a drive means such as a motor, whereby an optical probe which can deflect light emitted from the circumferential surface of the outer envelope in the circumferential direction of the outer envelope and is easy to make thinner and down its cost can be obtained.

Abstract: An entrance denial security system for detecting a fault condition at one or more entrances into a secured area representing unauthorized activity and an attempt to gain entry through the entrance. The system comprising an entrance barrier closing an entrance into a secured area; the barrier including a plurality of hollow structural elements having hollow cores forming a rigid integral barrier; an optical fiber sensor line laced through the hollow cores of the structural elements of the gate for detecting the fault condition; a processor in communication with the fiber sensor line for generating a fault signal in response to the occurrence of a fault condition and identifying the entrance where the fault condition occurred; and a communication device operatively associated with the processor for communicating the fault signal so that a proper security response can be made to the fault condition.

Abstract: A fiber scanning system is provided comprising a housing (102) with a fiber (13), the fiber (13) comprising a fixed part and a free end, the fixed part being attached to a bottom of the housing (102) and the fiber (13) extending parallel to the wall of the housing (102). At least one electrical coil (12) is attached to the wall at a position in between the fixed part and the free end of the fiber (13), a winding of the electrical coil (12) being in a plane parallel to the fiber (13). A magnet (11) is attached to the fiber (13), such that the electrical coil (12) may induce a force on the magnet (11). The magnet (11) is attached to the fiber (13) at a position just before or after the electrical coil (12), a width of the magnet (11) being such that the magnet (11) extends over the electrical coil (12).

Abstract: The present invention is an improved transparency scanning module, which is applied on a cover of scanning device. The transparency scanning module and the cover can be taken apart for different consuming groups. The features of the invention are that transparency scanning module is embedded in cover, and a slot of cover for holding transparency scanning module is set plural fillisters, and there are plural connectors set on the relative positions of transparency scanning module for connecting each other. When the fillisters connecting with the connectors, transparency scanning module is able to offer light and also transparency scanning module and cover are combined and fixed each other closely; on the other hand, rim of transparency scanning module is thinner, and most central part is protruding in z direction, thus transparency scanning module can be inserted and held in the slot of cover. This is another design for closely combination.

Abstract: An apparatus for varying a length of a flame scanner assembly for monitoring a flame includes a mounting shaft which connects to a fiber optic cable assembly; and a spool assembly having a first end and a second opposite end. The first end connects to a detector head assembly and the second end is configured to connect to a guide pipe. The second end of the spool assembly receives one end of the mounting shaft and a length of the flame scanner assembly is adjusted via telescopic interconnection between the second end of the spool assembly and the one end of the mounting shaft such that longitudinal displacement therebetween may be varied by slidable displacement of the mounting shaft relative to the spool assembly.

Abstract: The invention relates to a near-field antenna comprising a dielectric shaped body having a tip. The shaped body is characterized in that at least the surface of the tip is metallized, thereby enhancing the sensitivity of devices comprising the near-field antenna, for example, spectroscopes, microscopes or read-write heads.

Abstract: An optical fiber scanner is used for multiphoton excitation imaging, optical coherence tomography, or for confocal imaging in which transverse scans are carried out at a plurality of successively different depths within tissue. The optical fiber scanner is implemented as a scanning endoscope using a cantilevered optical fiber that is driven into resonance or near resonance by an actuator. The actuator is energized with drive signals that cause the optical fiber to scan in a desired pattern at successively different depths as the depth of the focal point is changed. Various techniques can be employed for depth focus tracking at a rate that is much slower than the transverse scanning carried out by the vibrating optical fiber. The optical fiber scanner can be used for confocal imaging, multiphoton fluorescence imaging, nonlinear harmonic generation imaging, or in an OCT system that includes a phase or frequency modulator and delay line.

Abstract: A system for scanning objects having at least two linear array sensors, adapted to detect light input signals, is provided. A lens is optically connected to each of the linear array sensors, and are adapted to receive and transmit an optical image located in a respective lens field of view along a respective lens axis to the respective one of the at least two linear array sensor. A light source which generates an illumination stripe in general linear alignment with the lens axis across a depth of the field of view is provided. A cylindrical lens is positioned between the light source and an object to be scanned. The cylindrical lens adapted to collect, transmit and focus light from the light source to form the illumination stripe. This arrangement provides a wider system field of view with generally more uniform resolution.

Abstract: Near-field electromagnetic devices having an opaque metallic screen with a fractal iterate aperture are provided. More specifically, the aperture is obtained by application of a self-similar replacement rule to an initial shape two or more times. Alternatively, the aperture can be obtained by application of a self-similar replacement rule one or more times to an initial C-shape. Such apertures tend to have multiple transmission resonances due to their multiple length scales. Fractal iterate apertures can provide enhanced transmission and improved spatial resolution simultaneously. Enormous improvement in transmission efficiency is possible. In one example, a checkerboard fractal iterate aperture provides 1011 more intensity gain than a square aperture having the same spatial resolution. Efficient transmission for fractal iterate apertures having spatial resolution of ?/20 is also shown.

Abstract: A probe which generates near-field light from an aperture at the tip is provided. The tip is covered with a lightproof member, at least the interior of the lightproof member is in the shape of a cone having a plane-shaped top, and the aperture is provided in the top plane.

Abstract: A readhead for a photometric diagnostic instrument includes a housing adapted for incorporation within the photometric diagnostic instrument, and an elongated sample table operatively engaged with the housing. The sample table is configured to support elongated reagent sample media of the type having a plurality of test areas disposed in spaced relation thereon, each of the test areas being configured to react with a sample and to change color according to an amount of a constituent or property in the sample. A light source is provided to illuminate the sample table. An imager having an elongated field of view is coupled to the housing, the elongated field of view including at least a portion of the sample table. A scanning mechanism is configured to move the field of view relative to the sample table.

Abstract: To measure the characteristics of the surface coating of a moving metal strip, such as the alliation level of a coating including zinc and iron, the product is exposed to the radiation of a radiative source with a predetermined wavelength directed orthogonally to the surface of the product and the energy reflected by the surface is measured also in a direction orthogonal to the surface so as to overcome reflectivity variations due to the morphological characteristics of the surface and these operations are performed with the help of off-the-shelf optical fibres previously stripped at their free ends of their normal optical focusing accessories so that they can be brought as near to each other as possible and placed parallel to each other.

Abstract: A method for position determination that includes generating first and second position-dependent scanning signals, transmitting the first and second position-dependent scanning signals from a scanning location via corresponding first and second scanning channels to corresponding first and second storage elements, storing corresponding first and second instantaneous values present at the first and second storage elements at corresponding first and second storage times. Forming a measured position value from the first stored instantaneous value and the second stored instantaneous value. A difference exists between corresponding first and second transit times of the first and second position-dependent scanning signals in the corresponding first and second scanning channels, the difference is compensated by individually delaying the first and second position-dependent scanning signals, so that the stored first and second instantaneous values have appeared at a common time at the scanning location.