101 results about "Visible laser light" patented technology

Methods of and systems for illuminating objects using planar laser illumination beams having substantially-planar spatial distribution characteristics that extend through the field of view (FOV) of image formation and detection modules employed in such systems. Each planar laser illumination beam is produced from a planar laser illumination beam array (PLIA) comprising an plurality of planar laser illumination modules (PLIMs). Each PLIM comprises a visible laser diode (VLD, a focusing lens, and a cylindrical optical element arranged therewith. The individual planar laser illumination beam components produced from each PLIM are optically combined to produce a composite substantially planar laser illumination beam having substantially uniform power density characteristics over the entire spatial extend thereof and thus the working range of the system. Preferably, each planar laser illumination beam component is focused so that the minimum beam width thereof occurs at a point or plane which is the farthest or maximum object distance at which the system is designed to acquire images, thereby compensating for decreases in the power density of the incident planar laser illumination beam due to the fact that the width of the planar laser illumination beam increases in length for increasing object distances away from the imaging optics. Advanced high-resolution wavefront control methods and devices are disclosed for use with the PLIIM-based systems in order to reduce the power of speckle-noise patterns observed at the image detections thereof. By virtue of the present invention, it is now possible to use both VLDs and high-speed CCD-type image detectors in conveyor, hand-held and hold-under type imaging applications alike, enjoying the advantages and benefits that each such technology has to offer, while avoiding the shortcomings and drawbacks hitherto associated therewith.

A multimode-fiber Raman laser includes a pump source configured to provide optical radiation centered at a pump wavelength and characterized by a spectral bandwidth greater than 100 MHz and an oscillator resonant at an emission wavelength greater than the pump wavelength. The oscillator includes an input coupler optically aligned with the pump source and a multimode optical fiber optically coupled to the input coupler. The multimode optical fiber includes an input section having a fiber Bragg grating, an intracavity section of a predetermined length optically coupled to the input section, and an output section having a fiber Bragg grating. The oscillator also includes an output coupler optically coupled to the multimode optical fiber and configured to provide a laser output at the emission wavelength.

A non-destructive method for chemical imaging with ˜1 nm to 10 μm spatial resolution (depending on the type of heat source) without sample preparation and in a non-contact manner. In one embodiment, a sample undergoes photo-thermal heating using an IR laser and the resulting increase in thermal emissions is measured with either an IR detector or a laser probe having a visible laser reflected from the sample. In another embodiment, the infrared laser is replaced with a focused electron or ion source while the thermal emission is collected in the same manner as with the infrared heating. The achievable spatial resolution of this embodiment is in the 1-50 nm range.

A constructional laser including a housing (3) with a light source located inside the housing for emitting a visible laser beam rotatable about a rotational axis, a base plate (11) attached to the housing (3) and provided with an inner thread (25) approximately in a center of the base plate (11), and two handles (12, 13) for lifting and carrying the laser and connected to the base plate (11) with the two handles (12, 13) being spaced from opposite sides of the housing (3) and extending at a right angle from the base plate (11) parallel to a height of the housing (3) toward an upper surface (4) of the housing (3), with the handles (12, 13) having at sides thereof remote from the housing (3), three servo positioners (14, 15, 16), with two of the servo positioners (14, 15) being provided on one handle (12) and with the third, height-adjustable servo positioner (16) being arranged on another handle (13), the three-point arrangement of the servo positioners (14, 15, 16) defining an isosceles triangle, with the connection lines between the three forming lateral side(s) of the isosceles triangle.

A survey apparatus includes a guide light emitting optical system emitting a fan-like visible laser light elongated in upward and downward directions as a guide light, a cylindrical part having a scanning optical system searching a corner reflector provided on a survey pole and a ranging optical system measuring a distance to the corner reflector, a driving part rotating the cylindrical part about a vertical axis in a horizontal direction and rotating the cylindrical part about a horizontal axis, and an angle measurement part measuring a direction of the cylindrical part. The guide light emitting optical system is rotated about the vertical axis in a horizontal direction integrally with the cylindrical part.

A removable laser base for a bubble level that includes a body, a laser beam generator, and a removable securement. The body has a flat top surface that the level is secured to and a bottom surface that is flat and parallel to the top surface. A laser diode mounted in a module emits a visible laser beam upon application of power from a battery that is controlled by a switch. The module, batteries, and switch are mounted in a through bore in the body. The laser base is removably secured to the bubble level by any manner appropriate to the shape of the level. In one such securement, the level has a T-shaped cross-section and the body has a complementary slot into which the level slides. When the level reference surface abuts the top surface of the laser base, a thumb screw is tightened to frictionally secure the level in the base.

A system and method are disclosed for the simultaneous optical disinfection and detection of biological particles in a flowing fluid, such as air or water, medium. A light source for irradiating the flowing medium is a dual wavelength laser element simultaneously emitting a visible laser beam and an ultraviolet laser beam. In particular, a laser diode may generate a first visible laser light beam, and a second ultraviolet laser light beam may be generated by passing the first laser light beam through a frequency doubling crystal. Optical detectors measure scattering, fluorescence and / or transmission of the laser light beams from the air or water medium to determine the presence of biological particles in real-time.

A system and method for the treatment of body tissue is provided that includes a radiation-emitting device and a massaging mechanism. In accordance with one embodiment, the radiation-emitting device is a laser and the massaging mechanism is an automated mechanical massaging mechanism. The radiation-emitting device can emit radiation in one or both of the visible and infrared wavelengths. The radiation-emitting device can emit radiation in a concentric combination of infrared and visible laser light. The method of using the tissue treatment system includes exposing a skin surface of a patient to radiation emitted from the radiation-emitting device at predetermined wavelengths for predetermined periods of time. The method further provides for massaging the exposed skin surface of the patient with the massaging mechanism. The tissue treatment system can be utilized to effect the reduction of excess cellulite.

A system and method for the treatment of body tissue is provided that includes a radiation-emitting device and a massaging mechanism. In accordance with one embodiment, the radiation-emitting device is a laser and the massaging mechanism is an automated mechanical massaging mechanism. The radiation-emitting device can emit radiation in one or both of the visible and infrared wavelengths. The radiation-emitting device can emit radiation in a concentric combination of infrared and visible laser light. The method of using the tissue treatment system includes exposing a skin surface of a patient to radiation emitted from the radiation-emitting device at predetermined wavelengths for predetermined periods of time. The method further provides for massaging the exposed skin surface of the patient with the massaging mechanism. The tissue treatment system can be utilized to effect the reduction of excess cellulite.

Observation is performed using bright, clear multiphoton fluorescence images produced by efficiently generating a multiphoton excitation effect, without the need for a complex interference film structure. The invention employs a laser microscope apparatus including a first dichroic mirror that reflects visible laser light guided via a first light path and that transmits IR pulsed laser light guided via a second light path to combine the first light path and the second light path; an XY galvanometer mirror that scans the laser light from the first dichroic mirror on a specimen; an objective lens that irradiates the specimen with the scanned laser light and that collects fluorescence produced in the specimen; a second dichroic mirror that reflects the visible laser light and transmits the fluorescence from the specimen; and a detection unit that detects the fluorescence transmitted through the second dichroic mirror.

A patient positioning system for a panoramic dental radiation imaging system, including an upright support, and a patient positioning arm with chin rest mounted thereto. Wands are each rotatably connected to the patient positioning arm and connected together so as to move at identical angles of rotation, but in the opposite direction. Lasers, including a mid-sagittal, a Frankfort Plane, two cuspid, and one toe laser, each providing a line of visible laser light directed at a respective area of a patient's face, or at the floor, assist a technician in properly positioning the patient. A mirror is mounted to the upright support by a mechanism that permits the mirror to be pivoted outward from the support, in either of two directions, so as to enable the technician to see the lasers on the patient's face from the technician's position on either side of the positioning arm.

This apparatus offers multiple training scenarios which designates the targets to be hit and evaluates response. The apparatus assists in the evaluation and training of a shooter using multiple scenarios, detection of target strikes, timing, accuracy, and threat assessment. The system may be used with unmodified weapons and may not require attachments to weapon or shooter. The light source(s) in this apparatus may include visible lasers, focused light emitters, video or image projectors. The shooter may use live ammunition, and the weapon may be fired and operated independently of the control system. Hit detection on the targets may use vibration, accelerometer, acoustic, optical or thermal sensors that respond to projectile strikes on the designated target(s). If the specific location of the strike on the target is desired, nested targets and multiple sensor triangulation calculations may be used. This system designates which targets to shoot, when to fire, and evaluates the results.

A method and system for rapid, label free nanoscale chemical imaging and tomography (3D) with multiplexing for speed, and engineered coherent illumination and detection to achieve 3-D resolution at twice the Abbe limit. A sample undergoes photo-thermal heating using a modulated infrared light source and the resulting probe beam modulation is measured with one or more visible laser probes. Varying the infrared wavelength results in a spectrum which characterizes the chemical composition of the sample. Optionally, inelastically scattered light generated as a result of the probe beam interacting with the sample is collected simultaneously to yield additional chemical information.

The Laser Engagement Stun System, which is a man Worn Apparatus is designed for Training exercises in Force-on Force or One-on-One training. The L.E.S.S. system receives and analyzes incoming laser light signals while disregarding ambient light signals from the environment. It then generates a High Voltage low amperage pulsed shock or stun that is delivered to the person wearing the LESS. Each person in the exercises will be equipped with the Laser Engagement Stun System. A component and vital part of the system is the weapons mounted Visible Laser Light device attached to each persons weapon. The attached laser light device will be activated when the individual person pulls the trigger on their weapon and cause a Blank Round to be discharged or from a Dry Fire. When the person so equipped as described above with LESS, and weapons mounted Laser Light device, the person may aim his weapon at the opponent and shoot a blank or dry fire and if the aim was true and the laser light strikes the Sensor on the LESS, the person wearing the LESS will feel a mild electrical shock or stun to simulate a bullet hitting that person. Realism during training has become more and more valuable in preventing lives being lost, wounds and other injuries from being sustained because of the lack of realism during training. Only a system wherein the person experiencing the Tactile notification of being hit by a bullet and killed or wounded can prevent the possibility of that reality. Laser Engagement Stun System can address the Age Old problem of FRATRICIDE OR FRIENDLY FIRE. A back Sensor panel and rear helmet Sensor can detect and stun a friendly in a special location that can be immediately identified as FRIENDLY FIRE.

An active imaging retroreflection based optical system for the detection of other optical systems, especially passive optics used for observation / surveillance, or targeting. The active imaging system is switchable from either near-IR laser illumination, to a combination of near-IR and visible laser light illumination. The illumination is shaped into narrow elongated beams, generally elliptical in shape. These beams are channeled by rhomboid prisms so as to be emitted collimated to each other and monostatic to the detection system, such that the retroreflected return image returns axially to the optical detection system. The return image is resolved and refined by a series of objective and field lenses, and by a dual band, visible light and near-IR, pass filter, to add clarity and contrast. The energy is further enhanced by being amplified by a highly sensitive detector, such as a third generation imager; or a high sensitivity, back-illuminated CCD (charge coupled device); or a high sensitivity wide dynamic range CMOS (complimentary metal-oxide semiconductor) sensor. The retroreflected energy, processed by this third generation imager, or the like, appears as a concentrated point of light, or bright spot, that can be quickly and easily distinguished from its surroundings, which also appear to the user.

A laser light waveguide device includes laser light provision units that oscillate and cause laser light to exit; a laser light waveguide path formed of an optical fiber capable of guiding the laser light; and a control unit that controls the laser light provision units. The control unit detects an illumination spot (output of the visible laser light) based on a captured image, captured by an image capturing unit, of a laser light illumination area and an area close thereto illuminated with the laser light, and controls exit of the infrared laser light by the infrared laser light provision unit based on a result of detection of the illumination spot (output of the visible laser light).

A non-lethal laser-based disorientation system comprises a laser light source which generates visible laser light at one or more predetermined wavelengths. When directed by an operator at an opponent whose vision is unprotected, the light disorients and / or dazzles the opponent. The system also includes an eye protection system which substantially blocks light at the predetermined wavelengths, while being substantially transparent to visible light at other wavelengths. The light source is arranged such that the fluence of the generated light does not cause permanent damage to the opponent's eyes. The generated laser light is scanned and / or diverged, to cover a large field of view, as well as to limit the light's fluence. The eye protection system preferably comprises goggles worn by an operator and associated personnel, the lenses of which have an optical coating designed to block the predetermined wavelengths while being substantially transparent to visible light at other wavelengths.

The invention belongs to a bridge turning construction accurate centering control construction method and a structure thereof. According to the method, vertical visible laser rays emitted by a laser demarcation device are used for finishing accurate centering of a turned bridge piece in the bridge piece turning construction process. The adopted structure comprises the laser demarcation device, the turned bridge piece, a support on a side span cast-in-place section and a temporary buttress, wherein the laser demarcation device is used for finishing the accurate centering control over the turned bridge piece in the bridge piece turning construction process, the laser demarcation device is located on the support on the side span cast-in-place section outside the rotating circumference of the turned bridge piece in a centering manner, and the horizontal rays emitted by the laser demarcation device and the center line of a bottom board of a cross section at the side span beam end of the turned bridge piece are located at the same elevation. By the adoption of the method and the structure of the method, in the bridge body turning construction process, the method and the structure have the beneficial effects that a bridge body is adjusted and measured rapidly, accuracy is high, the construction speed is high, the workload and labor are saved, the construction cost is low, safety is high, and the method and the structure are simple and easy to learn and high in popularization.

A survey apparatus includes a guide light emitting optical system emitting a fan-like visible laser light elongated in upward and downward directions as a guide light, a cylindrical part having a scanning optical system searching a corner reflector provided on a survey pole and a ranging optical system measuring a distance to the corner reflector, a driving part rotating the cylindrical part about a vertical axis in a horizontal direction and rotating the cylindrical part about a horizontal axis, and an angle measurement part measuring a direction of the cylindrical part. The guide light emitting optical system is rotated about the vertical axis in a horizontal direction integrally with the cylindrical part.

The invention belongs to the technical field of intelligent traffic equipment and specifically relates to a light-screen line-crossing warning device. The warning device comprises a generation device and a receiving device cooperated with the generation device. The generation device or the receiving device is equipped with a caution display screen; the surface of the generation device or the receiving device is equipped with a plurality of laser generators and infrared emitters; and the surface of the receiving device or the generation device is equipped with a plurality of laser receivers corresponding to the plurality of laser generators, and a plurality of laser receivers corresponding to the infrared emitters, wherein the laser generators are used for generating visible laser beams.

An imaging apparatus includes: an imaging device that images an infrared image using reflected light from a subject to which infrared light is irradiated, and, in addition, images a color image using the reflected light from the subject to which patterns formed by combining a plurality of colors of visible laser light are projected; and a signal processing unit that colors the infrared image using color information which is determined depending on an intensity of the reflected light of the plurality of colors of visible laser light from the color image.

Techniques for generating reactions on surfaces that can operate at room temperature and pressure with visible laser light as a radiation source and environmentally sound gases for processing. The apparatus is highly compact, simple, reliable and low cost to operate and maintain, and can dry clean and condition surfaces without causing damage or leaving a residue. Gas is injected at one end of a plenum, directed through the plenum in the presence of the laser radiation, and exhausted at the other end. The plenum creates a highly confined space for directional laminar movement of gas, laser light and by-products, permitting a high degree of uniformity and reaction efficiency. Minimal internal surface area and volume of the reactor prevents by-products from forming, eliminating costly cleaning and downtime.

The invention discloses a vehicle-mounted road safety warning device. The device comprises a triangular warning board, a laser transmitter, a GPS positioning module, a radio signal transmitting module and a storage battery, and the laser transmitter, the GPS positioning module, the radio signal transmitting module and the storage battery are installed on the triangular warning board. The laser transmitter can transmit visible laser beams, the GPS positioning module obtains the current position information, the radio signal transmitting module sends fault signals and the position information, and the storage battery provides a power source for the warning device. According to the vehicle-mounted road safety warning device, the laser beams are sent out by using the laser transmitter so that the warning distance can be prolonged, the visibility of line rays is high, and a rear vehicle can find and yield the position as soon as possible; meanwhile, the radio signal transmitting module sends the fault signals and the position information, so that a driver of the rear vehicle with a receiving end can more clearly know the road condition information.

An alignment tool for vehicular adaptive cruise control detection devices attaches with precision and repeatability to an adaptive cruise control sensor subassembly. Integral to this alignment tool is a low energy visible light laser that can be adjusted to point along the signal axis of the ACC sensor subassembly with stable and calibratable precision. The point at which a visible laser light beam strikes a reference surface can reveal the alignment of the ACC sensor subassembly with respect to the vehicle.

Techniques disclosed herein provide for substantially uniform steering of multiple laser beams of a laser rangefinder having different wavelengths, such as a rangefinder laser beam and a visible laser beam. This can allow a user of the laser rangefinder to use the visible laser beam to bore sight the range-finding laser beam to a weapon onto which the laser rangefinder is mounted. The uniform steering of the multiple laser beams can be done through the utilization of a Risley prism assembly with one or more Risley prisms having a center portion through which one laser beam travels and at least one annulus through which a second laser beam travels.

The invention discloses a laser annealing device and an annealing method thereof. The annealing device comprises a first annealing optical path system, a second annealing optical path system and a beam combining optical path system; the first annealing optical path system includes a visible laser light source, a visible laser optical path system corresponding to the visible laser light source, and a first energy monitoring unit; the second annealing optical path system includes a near infrared laser light source, a near infrared laser optical path system corresponding to the near infrared laser light source, a second energy monitoring unit and an energy adjustment unit; the near infrared laser optical path system includes a near infrared laser light source position adjustment unit; and the beam combining optical path system is arranged behind the visible laser optical path system and the near infrared laser optical path system and before a workpiece stage. According to the laser annealing device and the annealing method thereof of the invention, the relative sizes and positions of two annealing light spots are adjusted through the energy adjustment unit and the near infrared laser light source position adjustment unit, so that the dwell time and annealing temperature of annealing are controlled, and annealing requirements of different positions of a wafer can be satisfied, and the annealing performance of a system can be improved.

An automatic point layout system identifies points and their coordinates using vertical planes of laser light. Laser controllers aim vertical laser light planes that will cross at any desired point on the jobsite floor. The user views a virtual jobsite illustration on a remote controller touchscreen display, and selects a point of interest. Commands are sent to the two laser controllers, which aim their laser transmitters at that point of interest, showing visible laser light lines that intersect directly at the point of interest, for staking. The user selects a second point of interest on the touchscreen display, commanding the laser transmitters to rotate to a new set of coordinates. The user performs these functions seamlessly; the remote controller allows the user to quickly move from one point of interest to the next, without having changing to any other operating mode between the identifying and staking of each new point.