Abstract: Methods and apparatuses are provided that can be utilized for accurate pre-aiming and installation of devices. The devices are pre-set to an aiming orientation relative to a universal reference plane. The reference plane is then correlated to a feature of a pole, tower, or other structure that will be used to elevate or suspend the devices. A position sensing subsystem is utilized to inform a worker when each device is correctly angularly oriented to the reference plane. The worker simply moves the mounting structure for the device to the correct three-dimensional angular orientation, uses the position sensor to confirm the correct orientation to within a highly accurate margin of error, and either locks the device in that orientation or marks the orientation. The pole, tower, or other elevating structure is then preliminarily erected at its pre-designed location and pre-designed rotational orientation with the pre-aimed devices.

Abstract: A method of manufacturing a waveguide within a substrate by local modification of material structure under high power density laser radiation applied from the mostly distant side of the substrate.

Abstract: A light pen includes a case, a light source, a pen-nib structure, a first lens device, an elastic piece, a hollow knob, and a linkage pipe. The pen-nib structure is disposed through the case. The first lens device is disposed between the light source and the pen-nib structure. The elastic piece is connected to the first lens device. The hollow knob rotatably sheathes the first lens device. The linkage pipe sheathes the first lens device and is connected to the hollow knob for driving the elastic piece to move away from the pen-nib structure when the hollow knob rotates to a first position, so that the pen-nib structure can move relative to the case. The linkage pipe is further used for being separate from the elastic piece when the hollow knob rotates to a second position, so that the elastic piece can be engaged with the pen-nib structure.

Abstract: In a light source device provided with a light emission tube in which a light emitting element is enclosed and at least one laser oscillator part for radiating a laser beam towards said light emission tube, for focusing a beam within a light emission tube with a large solid angle and for preventing that the beam with a high energy density impinges upon the wall of the light emission tube, the light emission tube has a tube wall, part of which is made to function as a focusing means, or the light emission tube has a focusing means at the inner surface thereof.

Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.

Abstract: There are provided an illumination unit and a display apparatus which are capable of improving convenience for users. The illumination unit includes a light source section including a laser light source, an optical device allowing a laser beam from the laser light source to pass therethrough, a drive section allowing the optical device to oscillate, and a control section performing one or both of control of decreasing brightness of emitted light from the light source section and control of outputting to the outside information that oscillation of the optical device has been stopped when the oscillation of the optical device has been stopped during drive operation by the drive section.

Abstract: The inorganic optical filter of the invention consists of a NdF3 single crystal. The optical element of the invention comprises a wavelength conversion element wherein incident light is subjected to wavelength conversion to twice the frequency by quasi-phase-matching using primary matching or tertiary matching, and emitted, and an inorganic optical filter situated in the optical path of light emitted from the wavelength conversion element, wherein the wavelength conversion element consists of a ferroelectric fluoride single crystal represented by Ba1?y(Mg1?xZnx)1+yF4 (where 0?x?1, and ?0.2?y?0.2), and the inorganic optical filter consists of a NdF3 single crystal.

Abstract: A pointing light device includes a light pointer, such as a laser pointer; and an elongated pointing member detachably associated with the light pointer. The pointing member contains at least two bead-like members. Also, a method for aligning a light pointer with a predetermined medical interventional device trajectory. The method includes attaching a pointing member to an output end the light pointer to form a movable pointing light device; imaging two or more bead-like members of the pointing member to create live projection images or shadows in the live projection image; projecting at least first and second points associated with the predetermined medical interventional device trajectory onto the live projection image; and moving the pointing light device until the live projection images of the two members are aligned with corresponding ones of the projected first and second points in the live projection image.

Abstract: A wavelength converting member radiates light having a wavelength different from that of laser light introduced into the wavelength converting member. The wavelength converting member has a phosphor layer that contains a phosphor therein. The phosphor layer has a laser light incidence surface capable of receiving the laser light. The wavelength converting member also has a high-refractive layer that is bonded to an opposite surface of the phosphor layer to the laser light incidence surface thereof. A refractive index of the high-refractive layer is higher than a refractive index of the phosphor layer. The high-refractive layer has concaves on at least either the bonding surface where the high-refractive layer is bonded to the phosphor layer or a light extraction surface that is opposite the bonding surface.

Abstract: The invention relates to a vehicle light system comprising a laser device for generating a laser beam, further comprising a light output module provided with a phosphor element for emitting a light beam upon incidence of the generated laser beam and provided with an optical element associated with the phosphor element for producing a light output beam. Furthermore, the light system comprises a further light output module provided with a corresponding further phosphor element and a second optical element. The laser device is arranged to switch between a first state, in which the generated laser beam is directed to the phosphor element, and a second state in which the generated laser beam is directed to the further phosphor element.

Abstract: A laser module capable of being connected onto a circuit board includes a main body having a front opening, a rear opening, and an inner wall, a focusing lens connected in the front opening, a housing mounted to the exterior of the main body and enclosing the main body, with one end of the housing corresponding to the focusing lens having a through hole and the other end having an opening to accommodate the insertion of the main body into the housing.

Abstract: A system for equalizing pulse to pulse energy of a light beam includes a group of optical devices including an optical device configured to exhibit nonlinear properties, e.g., higher order or third order nonlinear properties. Transmission properties of an unequalized light beam passing through the group of optical devices change such that an output intensity of a resulting light beam output from the optical devices is equalized. One example configuration includes at least first and second prisms having nonlinear properties, i.e., higher order or third order, and configured as a beam steering system.

Abstract: A display system includes an optical light source and a display panel with an array of optically excitable pixels. Optics are positioned between the optical light source and the display panel so as to direct light from the optical light source toward the display panel to cause the optically excitable pixels to emit a visible image.

Abstract: Disclosed is a laser light system for fire rescue. The system provides a means for a fireman to navigate a room, corridor, fire escape route, other enclosed infrastructure using laser light as a technique to penetrate smoke/fire and darkness to see doorways and object structures.

Abstract: An alert system for generating, in the vicinity of a crossing such as an intersection or a railcar station warning line, a wide-area image indicative of an actual or impending traffic safety problem, comprising at least one safety indication component for indicating a state of an actual or impending safety problem; at least one wide-area image generating device mounted in the vicinity of the crossing for generating a corresponding vertically appearing wide-area image appearing at an injury preventable distance from the crossing; fog generating apparatus mounted in the vicinity of the crossing for discharging vaporized fluid by which light of a corresponding generated wide-area image is refracted or reflected, so that the wide-area images will be visible during daytime light; and a controller in communication with the at least one safety indication component for synchronizing operation of the at least one wide-area image generating device and the fog generating apparatus.

Abstract: An electrical circuit structure for a light may comprise: at least first and second circuit portions disposed in different planes; the first circuit portion having a shape corresponding to the shape of a mounting surface adjacent to which it is adapted to be mounted, the first circuit portion having an opening therein for receiving a light source; a light source mounted in the opening of the first circuit portion for receiving electrical energy; and a switch mounted to the second circuit portion for selectively applying electrical energy for selectively energizing the light source.

Abstract: A first down indicator system adapted for removable attachment to a first down marker post of markers of the type used in football games for marking a distance of ten yards to determine first down measurement.

Abstract: A laser device including a concave mirror converging beamlets from a plurality of high efficiency diode lasers to a focal point, an integrating convex mirror placed at or near the focal point reflects a first portion of the beamlets back to the concave mirror and allows a second portion through to a light transmitter. The second portion of beamlets exists the light transmitter as a homogenized uniform laser beam having substantially uniform convergence and focus.

Abstract: Provided is a planar illuminating device having light source section (1) emitting linearly polarized laser light and having a light guide (12) with a rectangular parallelepiped shape having one main surface with a mirror array (12c) thereon. The mirror array (12c) has a plurality of reflecting surfaces totally reflecting laser light incident on an incident surface (12a), of the light guide, perpendicular to the one main surface and emits the laser light from an emitting surface (12b), of the light guide, perpendicular to the one main surface, wherein the reflecting surfaces are formed in a stepped manner. Further, the planar illuminating device includes a light-guiding plate (3) making the laser light, emitted from the light guide (12), incident on an incident surface (3a) of the light-guiding plate and emitting the laser light from an emitting surface (3b) of the light-guiding plate.

Abstract: Disclosed is a light source device (4) capable of being used by adjacently connecting with each other in multiple, the light source device includes: a point light source (5) having high directionality; a box-shaped housing (6) having a bottom to center of which the point light source is fixed, sidewall portions arranged in a standing manner from edges of the bottom up to a predetermined height, a side portion defining an opening provided facing the point light source, and a reflection member forming an inner wall surface of the housing; and a transmissive/reflective plate covering the opening of the housing and being fixed at a circumference thereof to edges of the opening of the housing. At least one of the sidewall portions that is in contact with a sidewall portion of another light source device is arranged in a standing manner at an angle ?, where 90°<??150°, relative to the bottom, and is provided with a light-transmitting hole on the side of the opening of the housing.

Abstract: [Objective] To restrict degradation of optical characteristics due to a resin adhesive containing an inorganic filler. [Means] The width d of a lens body 31 and the height of an inorganic filler 341 in a direction orthogonal to the surface of a substrate are set such that an inclination angle of a collimating lens 3 does not exceed a maximum tolerable inclination angle when the inorganic filler 341 is positioned near the width-wise center of the lens body 31. As a result, even when the inorganic filler 341 is inserted between the bottom surface of the collimating lens 3 and the top surface of the substrate 4, degradation of the optical characteristics of the laser module including skewing of the optical axis of the laser light and distortion of the beam shape of the laser light can be restricted.

Abstract: A device for producing laser radiation includes a homogenizer device which can separately homogenize a plurality of groups of partial beams of laser radiation in such a way that each group of partial beams proceeding from the homogenizer device can produce a line-shaped intensity distribution in a work plane, with the distribution having flanks which drop steeply at the line ends. The device further includes a superposition device for superpositioning the groups of partial beams in such a way that a line-shaped or linear intensity distribution having a length longer than the length of each of the line-shaped intensity distributions of the groups of partial beams can be produced in a work plane, wherein the superposition device includes a lens array having a plurality of lenses.

Abstract: A light source is provided. The light source includes: an elliptical reflection mirror having first and second focal points; a discharge chamber in which a luminescent substance is enclosed and which is disposed on the first focal point; a laser light generator which emits the laser light; and a laser light guide which guides the laser light from an opening side of the elliptical reflection mirror into the discharge chamber. The luminescent substance is excited by providing the laser light to the luminescent substance so as to emit light, and the light is reflected by the elliptical reflection mirror. The laser light guide is disposed in a shade area in which the light reflected by the elliptical reflection mirror is blocked by the discharge chamber.

Abstract: A laser source assembly for providing an assembly output beam includes a first emitter, a second emitter, and a third emitter. The first emitter emits a first beam along a first beam axis that is substantially parallel to and spaced apart from an assembly axis. The second emitter emits a second beam along a second beam axis that is substantially parallel to and spaced apart from the assembly axis. The third emitter emits a third beam along a third beam axis that is substantially parallel to and spaced apart from the assembly axis. The first beam axis, the second beam axis and the third beam axis are positioned spaced apart about and substantially equidistant from the assembly axis.

Abstract: Light sources and methods for spreading a beam of electromagnetic radiation. The light sources include a scattering element with an outlet and an angular-selective element with an inlet spatially disposed between the outlet of the scattering element and an electromagnetic radiation source. The beam enters the inlet traveling in a direction of propagation and propagates through the beam spreader to the outlet for transmission from the outlet. The scattering element includes a scattering medium configured to scatter the electromagnetic radiation in the beam to provide a two-dimensional spatial distribution for intensity that is substantially uniformly across the outlet. The angular-selective element is configured to reflect a majority of the electromagnetic radiation of the first beam scattered by the scattering medium in a direction opposite to the propagation direction and reaching the angular-selective element.

Abstract: A surface light emitting apparatus capable of providing uniform illumination while efficiently using a laser light. The apparatus comprises a light source section that includes at least one light source which emits laser beam; an optical element section that includes at least one diffractive optical element section that modifies a wavefront of the laser beam emitted from the light source section by diffraction action; and an optical guiding section that guides from an incidence surface of the optical guiding section the laser beam emitted from the diffraction optical section and emits the laser beam from a radiation surface of the optical guiding section.

Abstract: Disclosed is a light spot forming element which is capable of forming a minute stabilized light spot efficiently and is easy to handle. For this purpose, there is provided a light spot forming element wherein a laser oscillation unit which has a periodic refractive index distribution and is employed as a laser resonator, and a focusing unit that receives the light emitted by this laser oscillation unit and forms a light spot by focusing this received light are formed on the same substrate.

Abstract: In a laser module (310), single-emitter laser diode chips (110) are positioned at different heights on opposite sides of the module's combined output beam (114). Each laser diode chip (110), and its corresponding fast and slow axis collimators (130, 134), and turning mirror (140) are positioned on a corresponding heat-dissipating surface region (340). High thermal stability and output power are obtained in some embodiments even if the modules are combined to obtain higher-level modules (310-2). Other features and embodiments are also provided.

Abstract: A tool system with a mount configured to be removably coupled to a surface.

Abstract: A lighting apparatus is provided that, while suppressing an increase in size, can change the illuminating direction. The lighting apparatus has: a laser generator which emits laser light; a light emitting member which is irradiated with the laser light emitted from the laser generator to emit light; an irradiated position changer which moves and thereafter stops an irradiated position at which the light emitting member is irradiated with the laser light; and a light projecting member which projects the light emitted from the light emitting member.

Abstract: An optical system includes a laser diode, a collimating lens and first and second housing parts. The first housing part retains the collimating lens therein. The second housing part engages the first housing part to retain the laser diode therebetween. The position of the laser diode is adjustable with respect to the collimating lens in X, Y and Z directions. One or more biasing members are interdisposed between the housing parts in the X direction, the Y direction, and/or the Z direction for biasing the laser diode relative to the collimating lens in the X direction, the Y direction and/or the Z direction. One or more securing members fixedly engage the first and second housing to one another and provide a compression force on the housing parts to maintain the relative position of the laser diode with respect to the collimating lens in the X, Y and Z directions.

Abstract: In order to reduce manufacturing cost of a base supporting a semiconductor laser, without deteriorating accuracy of mounting of the semiconductor laser, a mounting member is provided between the base supporting the semiconductor laser and the semiconductor laser; and the semiconductor laser and the base are fixedly attached with heat-cured silver paste. The silver paste has a lower curing temperature than an assurance temperature of the semiconductor laser, and a higher heat resistance than an operation temperature of the semiconductor laser. The mounting member is formed of a material having a higher heat resistance than the curing temperature of the silver paste.

Abstract: In at least one embodiment of the light source (1), the latter includes at least one semiconductor laser (2), which is designed to emit a primary radiation (P) of a wavelength of between 360 nm and 485 nm inclusive. Furthermore, the light source (1) comprises at least one conversion medium (3), which is arranged downstream of the semiconductor laser (2) and is designed to convert at least part of the primary radiation (P) into secondary radiation (S) of a different, greater wavelength than the primary radiation (P). The radiation (R) emitted by the light source (1) here displays an optical coherence length which amounts to at most 50 ?m.

Abstract: A system for laser induced reduction of visual acuity suitable for crowd control and disabling of individuals uses an eye-safe pulsed IR source in which a laser beam is imaged onto the cornea of an individual to heat the cornea, thereby to cause defocusing and disorientation.

Abstract: An illumination system including at least one coherent light source, a light uniforming element, and a prism is provided. The coherent light source is capable of emitting a coherent beam. The light uniforming element is disposed on a transmission path of the coherent beam. The prism is disposed on the transmission path of the coherent beam and between the coherent light source and the light uniforming element. The prism has a light incident end and a light exit end. The light incident end has at least one incident polygonal pyramid portion protruding away from the light exit end. The prism is capable of rotating about an axis, and the axis extends from the light incident end to the light exit end. The illumination system effectively reduces the degree of the speckle phenomenon.

Abstract: An apparatus, method, and system of aiming devices such as antennas, free-space optical communication transmitters and lighting fixtures. One aspect of the invention mounts a substantially collimated light source on a device or lighting fixture. The direction of the substantially collimated light source is fixed in a known relationship to the aiming direction of the fixture or device. By finding the substantially collimated light source either by direct viewing, in a mirror, or with a light sensor, the aiming direction of the fixture or device can be derived by using the known the relationship between the substantially collimated light source and the aiming direction of the fixture or device. Thus, the aiming direction of the fixture or device can be derived without operating the fixture or device and can be derived even at relatively remote locations from the fixture or device. The apparatus and method can be used on one fixture or a plurality of fixtures or devices.

Abstract: An optical device includes: a beam splitter by which a laser beam oscillated from an oscillator is branched into a first branch beam going ahead through transmission and a second branch beam going ahead through reflection; a first mirror by which the first branch beam going out of the beam splitter is reflected to go again toward the beam splitter; a second mirror by which the second branch beam going out of the beam splitter is reflected to go again toward the beam splitter; and a circular disk-like rotating unit for integrally rotating the first mirror and a second mirror, with a laser beam branch point in the beam splitter as a center of rotation.

Abstract: A sighting device is mountable to a gun. The device includes a light source (preferably a laser), a power source connectable to the light source and a mount attachable to the gun so that the laser is juxtaposed either the top surface of the gun or a side surface of the gun. In one embodiment, the sighting device includes a bottom rail mountable in a slot on the gun, wherein the slot is preferably positioned on the top surface of the gun. The sighting device may also include a mechanical sight that functions as the rear mechanical sight on the gun and/or a secondary light source.

Abstract: A self-collimator concave spectral shaping device for chirped-pulse-amplification (CPA): uses a spectrum decomposing system with CTSI construction, a spectrum synthesizing system with CTSI structure that is symmetrical to the decomposing structure, and a spectrum shaping system including an aperture and a planar reflector for spectrum shaping function design. The device accomplishes the following functions: firstly decomposing the spectrum of a chirped temporal pulse laser to a spectral domain; then shaping the spectrum in the spectral domain; finally synthesizing un-shiftily this shaped spectrum in the spectral domain into a temporal chirped pulse with a designed shape.

Abstract: A device for homogenizing laser radiation has at least in a first direction perpendicular to a direction of propagation of the laser radiation partial beams spaced apart from each other, in particular for homogenizing laser radiation emanating from a laser diode bar, an array of refractive surfaces, which can deflect at least a majority of the partial beams of the laser radiation to be homogenized in such different manners that the beams run at least partially more convergingly to each other after passing through the refractive surfaces than before passing through the refractive surfaces. The device further has a lens device through which the partial beams, which have passed the array of refractive surfaces, can pass, wherein the lens device can superimpose at least some of the partial beams in a working plane.

Abstract: A projector that projects video light corresponding to an image signal onto a display surface includes: a light source device that emits light; a housing that houses at least the light source device; a projection lens, that is, an optical element that transmits the video light projected onto the display surface and emits the video light toward the outside of the housing; a detecting unit that detects detection light supplied to the optical element; and a control unit that adjusts a light amount of the video light on the basis of a result of the detection by the detecting unit. The projector is set such that, when the optical element is in a normal setting state, the light amount density of the video light is equal to or lower than a predetermined value on an emission surface for emitting the video light of the optical element.

Abstract: A laser illumination device including a body, a head secured to the body, a laser generator accommodated in the head, and a rotatable output adjustment member having a graduated disk and an adjustment disk. The graduated disk defines a circle of graduated sections, at least one of which is exposed out of the head. The adjustment disk includes a plurality of through holes with different sizes, arranged in a circle. The measuring member coupled with the graduated disk rotates relative to the body to align each one of the through holes with the laser generator, to adjust the amount of laser light passing through the one of the through holes.

Abstract: A system and methods for broad area visual obscuration around a platform. In one embodiment the system comprises a source of visible light, shaping optics and projecting optics. The system projects a light beam onto an illumination area in a sweeping pattern to repetitively illuminate all portions of the illumination area, such that a stationary observer within the illumination area receives repeating pulses of the light at a power, intensity, frequency and duration sufficient to visually impair the observer so as to substantially prevent the observer from discerning the platform between pulses. The light pulses are capable of temporarily blinding human eyes but incapable of causing permanent vision loss.

Abstract: There are provided an optical pointing module having a lighting function and an electric device that can be used at night or dark place. An optical pointing module having a lighting function according to an aspect of the invention may include: a laser light source mounted on a printed circuit board; an outer housing through which laser light, emitted from the laser light source, passes, the outer housing having an outside part formed of a transparent material; and a lighting unit mounted inside the outer housing and supplying light to the outside part.

Abstract: A light guide member 3 includes: an incident surface 3a that is a flat surface or a constant curved surface; an output surface 3b that is smaller than the incident surface 3a; and reflection surfaces 3c to 3f that are formed on a side surface between the incident surface 3a and the output surface 3b; wherein an inside of the light guide member 3 is homogeneous.

Abstract: An optical system is provided for shaping a laser beam, having a first optical element which is designed at least partially as a base body, the base body having a base surface area and having a curved surface area which abuts said base surface area. The base surface area and the curved surface area are designed at least partially as transmission surfaces for the laser beam, and the base body has a recess with a curved surface area, wherein the curved surface area is designed at least partially as a reflecting surface for the laser beam.

Abstract: A light source includes a light source unit which supplies first wavelength light, a wavelength converting unit which converts the first wavelength light into second wavelength light different from the first wavelength light, and a leakage preventing unit which prevents leakage of the first wavelength light out of the light source. The area where the light source unit and the wavelength converting unit are disposed is optically separated from the area where the leakage preventing unit is disposed.

Abstract: A light source unit includes: a light source part that supplies light; an optical element that changes an optical path of the light from the light source part; and a wavelength conversion element that converts a wavelength of the light from the optical element. The optical element is movable, and the optical path of the light entering the wavelength conversion element from the light source part is shifted by moving the optical element.

Abstract: Laser lights emitted from a light source 30 are diffused in a direction parallel to main surfaces of a light guide plate 9 by a one-dimensional diffuser 5. The diffused laser lights are converted to parallel lights by a first cylindrical lens 6, and are then converged in a direction of the thickness of the light guide plate 9 by a second cylindrical lens 7. The converged laser lights are reflected 90 degrees twice by a mirror 8, and are guided to a side surface of the light guide plate 9.

Abstract: An illumination system including at least one coherent light source, a light uniforming device and a lenticular sheet module is provided. The coherent light source is capable of emitting a coherent beam. The light uniforming device is disposed on a transmission path of the coherent beam. The lenticular sheet module disposed on a transmission path of the coherent beam and between the coherent light source and the light uniforming device, includes a first lenticular sheet and a second lenticular sheet. The first lenticular sheet includes a plurality of first rod-like lenticulars disposed side by side extending along a first extending direction. The second lenticular sheet disposed between the first lenticular sheet and the light uniforming device, includes a plurality of second rod-like lenticulars disposed side by side extending along a second extending direction. The first extending direction and the second extending direction make an angle greater than 0 degree.