344 results about "Red laser" patented technology

A multi-wavelength laser device includes at least two of a blue laser diode, a red laser diode, and an infrared laser diode, which are arranged in the same direction on the same base. One laser light emission point is arranged behind another in increasing order of wavelengths of the laser diodes.

A semiconductor laser device includes a substrate which is made of, e.g., silicon and which has in its principal surface first and second recessed portions formed at a distance from each other. Disposed in the first recessed portion is a first semiconductor laser chip in the form of a function block, which emits an infrared laser beam. Disposed in the second recessed portion is a second semiconductor laser chip in the form of a function block, which emits a red laser beam.

A non-contact control method for large screen features that a laser pen is used to control screen operations, a red laser pen with wireless left and right mouse keys are used for realizing the functions of mouse, a camera head with red filter is used for picking the information about laser point and increasing S / N ratio, a video acquisition card is used for receiving the data from camera head and processing it to set up the position of system cursor, and a forward interpolation algorithm is used for moving cursor smoothly.

The invention relates to light sources and displays incorporating blue laser pumped light sources that provide green light. According to a first aspect of the invention, a green light source includes a semiconductor diode laser emitting light in an optical path having a dominant wavelength within the blue spectral region, a substrate positioned in the optical path of the semiconductor diode laser, and a material coupled to the substrate. The material is selected to absorb light emitted by the semiconductor diode laser and, in response, to emit light having a dominant wavelength within the green spectral region. According to a second aspect of the invention, an apparatus includes a lighting module for a display, the lighting module includes an array of red laser light sources, an array of blue laser light sources, and an array of green light sources according to the first aspect of the invention.

An image producing system (1400) delivers images (1414) having reduced speckle by employing one or more drive circuits (1404, 1405, 1406) that deliver both a direct current drive signal (205) and an alternating current drive signal (405) to one or more lasers (1401, 1402, 1403). Specifically, an alternating current drive circuit (403) is used in conjunction with a direct current drive circuit (203) to modulate a drive signal. The modulation can be at a frequency of between 400 MHz and 600 MHz. When lasers, such as the red laser (1401) or the blue laser (1403) of a multi-laser system are modulated in such a fashion, their emitted spectral widths (407) greatly expand, thereby reducing speckle in projected images (1414).

An invasive laser acupuncture includes a first semiconductor laser connected to a first optical fiber acupuncture and providing red-based laser beam with the first optical fiber acupuncture; a second semiconductor laser connected to a second optical fiber acupuncture and providing a green-based laser beam with the second optical fiber acupuncture; and a driving circuit independently driving the first semiconductor laser and the second semiconductor laser in a continuous mode or a pulse mode by a switching operation. Since red and green lasers can independently be driven in the continuous mode and the pulse mode, the red and green laser can easily be adopted in a reinforcing and reducing treatment method in traditional oriental medicine. In addition, by using a metal-coated optical fiber acupuncture, the optical fiber acupuncture is injected directly into meridian pathways provided under an epidermal layer, such that it is possible to efficiently transmit a laser beam without loss.

The invention provides a color computational holography aberration compensation system and method based on a varifocus lens. The system comprises a red laser device, a green laser device, a blue laser device, a shutter I, a shutter II, a shutter III, a filter I, a filter II, a filter III, a collimating lens I, a collimating lens II, a collimating lens III, a reflecting lens, a semi-transmission semi-reflecting lens I, a semi-transmission semi-reflecting lens II, a space light modulator, a computer, a driving panel, the varifocus lens, a receiving panel and a synchronous control circuit. The varifocus lens is used for replacing a solid lens commonly used in a color computational holography optics reappearing process, the varifocus performance of the varifocus lens is used, the focal lengths of the varifocus lens during reappearing of light with different colors are changed, so that R, G and B three-color reappearing image axial coinciding is achieved, accordingly, aberration compensation is achieved, the system can be effectively simplified, cost is lowered, and reappearing image quality is improved.

The invention discloses a colon cancer protein mark parallel test liquid phase chip, which is mainly formed by: micro ball, capture antibody, test antibody and streptomycin-phycoerythrin, wherein the capture antibody with the corresponding micro balls form coupling conjugated, which uses red laser to active the red categorizing fluorescence of the sphere base material and ascertains the type by the different color of the sphere base material; the test antibody is a skin factor mark antibody; the capture antibody and the test antibody can combine with the colon cancer protein mark; the test antibody combines with the streptomycin-phycoerythrin and uses green laser to active the phycoerythrin to measure the report fluorescence molecular number of the sphere base material, which can indirect ascertain the colon cancer protein mark content combines with the sphere base material. The invention also discloses the colon cancer protein mark parallel test liquid phase chip applied in preparing the test agent.

The invention presents a method of radiation dosimetry and radiation field imaging. It utilizes luminescent material based on aluminum oxide doped with carbon and magnesium (Al2O3:C,Mg) and containing aggregate oxygen vacancy defects. Storage of dosimetric information is based on ionization of the crystal matrix, generation of free electrons and capture of electrons and holes by traps and color centers. An absorbed dose is determined by non-destructive readout of fluorescence from color centers induced by radiation. The preferred mode of measurements is to illuminate the Al2O3:C,Mg phosphor with a red laser (at 635 or 650 nm) and to measure the intensity of 750 nm fluorescence. Method allows for high temperature and environmental stability of dose information. The detector material is insensitive to room light before and after the irradiation and provides a fast data rate during scanning for imaging of radiation fields.

A method and system for characterizing tissue includes a probe connected to a red LASER source and a Raman spectroscope. The probe includes at least excitation fiber and one or more emission fibers that connect the probe with the LASER source and the Raman spectroscope. The excitation fiber is connected to the red LASER source and terminates in the first end of the probe adjacent the tip of the probe. The emission fibers are connected to the Raman spectroscope and terminate in the first end of the probe adjacent the tip of the probe. In one embodiment, the excitation fiber extends through the central portion of the probe and one or more emission fibers are arranged around the excitation fiber. The tip of the probe is intended to come in contact with the tissue to be examined. The tip includes a central opening to allow red LASER radiation to project out of the end of the red excitation fiber on to the tissue and to permit Raman spectra to enter the emission fiber(s) and travel to the Raman spectroscope. The tip is constructed to have a predefined focal length to position the first end of the probe a predefined distance from the surface of the tissue being examined. The tip can be removable and tips having different focal lengths can be used to accommodate different types of tissues and examinations. A detector can convert the Raman spectra into signals and data for analysis by a computer system. The Raman spectra for tissue in a predefined location can be profiled such that the system can distinguish between healthy and diseased tissue.

The invention discloses a laser light source. The laser light source comprises a blue laser device and a red laser device which respectively emit blue laser light and red laser light, and further comprises a fluorescence wheel which is excited to emit green fluorescence, wherein a first diffusion part and a second diffusion part are arranged on a transmission light path of the at least one color laser light, the first diffusion part and the second diffusion part are respectively driven to do motion, motion tracks are different, the space position scope with phase change increases when laser beams sequentially pass through the two diffusion parts, the probability that correlation degrees among phases after change are relatively low increases, the quantity of random phase patterns can be greatly improved, the eye integration effect is utilized to alleviate the speckle removal effect, so the relatively good speckle purpose is realized. The invention further discloses laser projection equipment equipped with the laser light source.

The present invention discloses a laser equalization coupling device for laser display, and includes a trichromatic laser source and a focusing device. The trichromatic laser source comprises at least one red laser device, at least one green laser device, and at least one blue laser device. The focusing device includes a plurality of coupling optical fibers and a bushing. All coupling optical fibers correspond to the laser devices one-to-one. The laser emitted by the laser device couples and enters into the corresponding coupling optical fiber, and all output ends of the coupling optical fibers are packed in the bushing to form a combined beam of output laser. The present invention can meet the brightness requirement of the big-screen laser display, can reduce the volume of the whole coupling device, and can eliminate the beam speckle.

The invention relates to an HUD luminance improving device, namely, a high-luminance HUD optical system based on laser micro projection. The HUD luminance improving device comprises an image analysis system, an image receiving system and an eyepiece system. The HUD luminance improving device is characterized in that a red laser device, a green laser device and a blue laser device are used as signal light sources; an optical thin film is introduced into the eyepiece system, so that corresponding red light, corresponding green light and corresponding blue light are reflected, and light with other wave lengths directly penetrates through the optical thin film or part of the light penetrates through the optical thin film, wherein the corresponding red light, the corresponding green light and the corresponding blue light are emitted by the laser devices. The HUD luminance improving device has the high-luminance information display effect and enables a high-definition external environment display view to be obtained.

A low-power laser irradiator of the present invention activates hair follicle cell and increases blood flow of scalp tissue, thus enhancing effects of hair loss prevention and hair regrowth. The laser irradiator includes a laser output unit in which red laser diodes with 630 nm˜680 nm wavelength and near-infrared laser diodes with 750 nm˜1000 nm wavelength are arranged alternatively. The comb-shaped laser irradiator is convenient to use through typical combing action and effectively used for alopecia treatment.

A method of despeckling light that includes mixing high-speckle laser light with low-speckle laser light in amounts selected to achieve a desired color point in a digital image. The high speckle laser light may be red laser diodes and the low-speckle laser light may be green stimulated-Raman-scattering light from an optical fiber. The desired color point may be DCI red or Rec. 709 red.

The invention discloses an imaging system of an endoscope.According to the system, one end of a first switch is connected with red laser and the other end of the first switch is connected with a first controllable decorrelation device to serve as a first channel; one end of a second switch is connected with a green light source and the other end of the second switch is connected with a first controllable decorrelation device to serve as a second channel; one end of a third switch is connected with a blue light source and the other end of the third switch is connected with a third controllable decorrelation device to serve as a third channel; the first channel, the second channel and the third channel are connected with a mixer, and mixed signal light is output; the first controllable decorrelation device in the first channel is not enabled, output signal light is used for laser speckle imaging, a laser speckle angiography image is generated, output signal light of the second channel and the third channel is used for narrow-band light imaging, and a narrow-band light image is generated.The imaging system of the endoscope breaks through narrow-band light imaging depth, detects the angiemphraxis condition, and improves the capacity of recognizing blood vessel depth information.

The invention discloses a high-power optical fiber laser. The laser structurally comprises a residual light collector, a red light / signal light beam combiner, a red light laser, a reverse cladding light mode stripper, a forward pumping pump source module, a forward pumping / signal beam combiner, a high-reflection grating, doped optical fiber, a low-reflection output grating, a reverse pumping / signal beam combiner, a reverse pumping pump source module, a forward cladding light stripper, and output optical fiber with an antireflection film end cap. Based on a linear fabry-perot resonance cavity structure, the forward pumping pump source module and the reverse pumping pump source module, with different wavelengths, provided with narrow-band protection filters are adopted, the forward pumping / signal beam combiner and the reverse pumping / signal beam combiner pump doped optical fiber from the front end and the back end of the doped optical fiber through the high-reflection grating and the low-reflection output grating at the same time, so that multi-kilowatt-class power stable output of the optical fiber laser is achieved, and mutual damage of residual pumping light on two sides to a pumpsource chip is avoided.

A backlight device (100) is provided with first light sources (20a, 20b) and second light sources (10). The first light sources (20a, 20b) emit first light beams (22a, 22b) that are red laser beams. The second light sources (10) emit a second light beam (13) that is blue-green color light having a complementary-color relationship with the laser beam. The second light sources (10) comprise light-emitting diodes that emit blue light, and phosphors that absorb the blue light and emit green light.

The invention discloses a laser projection display system based on a full-semiconductor laser. The laser projection display system comprises a laser light source module, a light path module, a circuit module and an optical sensor module, wherein the laser light source module is used for providing three required lasers, namely red laser, blue laser and green laser, for the projection display system; the light path module is used for performing light unification and imaging processing on light provided by the laser light source module, making the light illuminated on chips, transmitting the light modulated by the chips to a projection lens, and forming an image for output; the circuit module is used for regulating the chips in the light path module according to external audio and video signals and regulating the power of the three lasers in the laser light source module according to a certain algorithm and a conditioning signal generated by an optical sensor; and the optical sensor module is used for detecting the brightness of an external environment and the brightness of an image output by the system, forming a conditioning signal according to a certain algorithm and transmitting the conditioning signal to the circuit module. By the laser projection display system, manual or automatic regulation of the color gamut and the brightness is realized.

The invention discloses a real-time recording apparatus and method for a colorful digital holographic image, belongs to the field of the colorful digital holographic image technology, and aims to solve the problem that the recording of the red light, green light and blue light digital holographic image cannot be finished by an optical path system synchronously used in the prior art; the numerical value reconstruction algorithm for the colorful digital holographic image in the prior art is relatively troublesome and complex, so that efficient and rapid numerical value reconstruction of the colorful digital holographic image is affected, and the real-time recording and reproduction of dynamic colorful objects cannot be realized. The real-time recording apparatus provided by the invention comprises a red laser 1, a green laser 2, a blue laser 3, beam splitter prisms BS1-BS8, reflectors M1-M8, adjustable attenuator filter 1-filter 6, right angle prisms 1-4, achromatic microobjective MO1-MO4, pinholes PH1-PH4, achromatic lenses L1-L4, a computer, a CCD camera and a to-be-tested object which are arranged in sequence based on the optical path. The real-time recording apparatus and method are used for obtaining the colorful digital holographic image.

The invention discloses a high-precision automatic calibration device for a robot hand-eye camera. The automatic calibration device comprises an industrial robot, a robot tail-end tool, laser generators connected to the industrial robot tail-end tool, a calibration board and the camera. The industrial robot is connected with one side of a connecting piece, and the robot tail-end tool is installed at the other side of the connecting piece. The laser generators are installed at one side of the robot tail-end tool and comprise the red laser generator and the green laser generator. The calibration board is a checkerboard with black alternating with white. The camera is fixed to a workbench and refers to a 2D camera. By means of the high-precision automatic calibration device for the robot hand-eye camera, the problem that high-precision placement of the calibration board and installation of the tail-end tool are required when the industrial robot hand-eye camera is calibrated is effectively solved; and meanwhile, there is no need to put the calibration board at an accurate position, the calibration board only needs to be placed at any position in a robot working space and make lasers intersect with the calibration board, and the calibration workloads of the camera are greatly relieved.

The present invention relates to a method of depositing a composition on a receiving substrate to form a printed object, the method comprising the steps of providing: (1) a receiving substrate; (2) a source of near-infra-red laser radiation which is a pulsed laser source or an array of pulsed lasers; (3) a support transparent to near-infra-red laser radiation, the support being positioned between the receiving substrate and the laser source; and a composition which is in contact with the transparent support and which is positioned between the transparent support and the receiving substrate, wherein the composition comprises: (a) a functional material in particulate form capable of absorbing near-infra-red laser radiation, (b) an oligomer and / or polymer, (c) water, and (d) optionally additives, the method comprising directing near-infra-red laser radiation through the transparent support and into the composition and thereby causing the composition to be transferred from the transparent support across a gap to the receiving substrate and causing oligomer and / or polymer to solidify on the receiving substrate, thus forming a printed object on the receiving substrate, wherein the printed object is electrically conductive.The present invention further provides apparatus, devices, and compositions for use with the method described.

The invention discloses a non-diagnostic method for detecting a suspension chip of PCR products. The chip mainly comprises coded microspheres, a biotinylated primer, a capture probe, and streptavidin-biotin-phycoerythrin, and the method comprises the following steps that: the capture probe is coupled with corresponding microsphere of each size respectively, a red laser excites classified fluorescent lights on aspherical substrate, and the types are determined according to different colors of the spherical substrate, wherein the biotinylated primer shows the a primer needs biotinylation labeling during PCR; the microspheres coupled with the probe can be specifically combined with a PCR product labeled by an amplified biotin; and the streptavidin-biotin-phycoerythrin is combined with a biotin on the PCR product captured on the microspheres, a green laser excites the phycoerythrin, and the number of the reported fluorescent molecules combined on the spherical substrate is measured and is used for indirectly determining the content of the PCR product combined on the spherical substrate.

The invention belongs to the technical field of surface charge accumulation characteristic testing of high-voltage direct current solid insulating material, and in particular relates to a measuring device of direct-current GIL basin-type insulator surface charge based on Pockels effect. The measuring device comprises a helium-neon laser, a polarized light separator, a high-speed camera, a 1 / 8 valve plate, bismuth silicate crystal, an insulating vacuum tube, a sliding block, a rotating shaft and an insulating guide rod. When measuring is conducted, a bismuth silicate probe is stuck to the surface of an basin-type insulator, a red laser is emitted from the helium-neon laser, the red laser is turned into elliptically polarized light through the polarized light separator and the 1 / 8 valve plate, the light entries into the bismuth silicate probe and is reflected at a division surface of bismuth silicate and the basin-type insulator, the light penetrates the 1 / 8 valve plate again and enters the high-speed camera after right-angle refraction is conducted on the light, optical intensity distribution is measured, and the size of the quantity of electric charge is acquired after being processed by a computer. The measuring device has the advantages that the structure is simple, the operation is convenient, and efficient measuring means is provided for studying of direct-current GIL basin-type insulator surface charge accumulation.

A method and system for high-precision fast positioning of patient body for radiotherapy is disclosed. Said system is composed of a pair of cameras, 3 miniature movable tables, 3 visual red lasers, image acquiring and processing unit, and bed driving software. After the patient body is positioned for the first time, its precise coordinate is recorded. For the latter positioning, the coordinate of patient body compared with the recorded one and the bed is moved for making them matched.

The related autoantibody parallel detection liquid chip comprises: the mcirosphere, self antigen to form coupling body with corresponding microsphere and use red laser to activate red fluorescence on substrate and determine self antigen type by color, and double antigen treated by biotin to combine and activate the phycoerythrin with green laser and determine fluorescent molecule quantity for indirect obtaining content.

An ordinary golf ball is cleaned and then heated with an emulsion depositing in the dimples a hologram having the capacity to reflect a pre-selected wavelength of laser-beam. If a player temporarily losses such ball, a hand-held unit directs an infra-red laser beam of said pre-selected wavelength, desirably one not absorbed by atmospheric moisture, such as 1310 nm. Said hand-held unit contains an analyzer evaluating the light reflected back to such analyzer and attributable to such laser bean of said pre-selected wave-length. By evaluating the intensity of such reflected light, the golfer can target the location of the temporarily lost ball. Upon approaching the lost ball the angle at which the unit would be held would be modified for focusing on the lost ball. Earphones, meters, or other diagnostic equipment can monitor the intensity of the light reflected back from such laser beam. Such hand held analyzer of reflected light involves an investment which is small enough that a golf club can include the rental of such a unit as a part of the rental for a golf cart. Preliminary estimates indicated that any country club failing to utilize the present invention will encounter greater losses from lost balls than those practicing the present invention, because the cost of periodically regenerating the hologram for a ball represents such a small fraction of the cost of a replacement ball.

The invention relates to a laser projection imaging system comprising three laser sources, a projection system, three rotatable laser wedges, a uniform laser illuminating system, three PBS prisms, three imaging devices and a laser combining prism, wherein the three laser sources are used for generating a red laser, a green laser and a blue laser; the projection system is used for projecting the lasers on an object surface, the three rotatable laser wedges corresponding to the three laser sources are arranged in a laser propagation path; the three imaging devices respectively correspond to the three PBS prisms; the laser combining prism is arranged among the three PBS prisms; and the red laser, the green laser and the blue laser which are all transmitted by the three laser sources respectively pass through the corresponding laser wedges and the uniform laser illuminating system, are reflected to the three imaging devices through the PBS prisms, pass through the PBS prisms after being reflected from the imaging devices, are transmitted to the projection system through the combination of the laser combining prism and are projected by the projection system. The laser projection imaging system uses the lasers as the projection display laser sources, has wide color range, simple structure, and the like and effectively solves an image spot problem generated by laser interference by adopting the rotatable laser wedges.

The invention relates to a method of depositing a composition on a receiving substrate to form a printed object, the method comprising providing: a receiving substrate a source of near-infra-red laser radiation which is a pulsed laser source or an array of pulsed lasers a support transparent to near-infra-red laser radiation, the support being positioned between the receiving substrate and the laser source a composition which is in contact with the transparent support and which is positioned between the transparent support and the receiving substrate, wherein the composition comprises (a) a functional material in particulate form capable of absorbing near-infra-red laser radiation, (b) an oligomer and / or polymer, (c) water, and (d) optionally additives, the method comprising directing near-infra-red laser radiation through the transparent support and into the composition and thereby causing the composition to be transferred from the transparent support across a gap to the receiving substrate and causing oligomer and / or polymer to solidify on the receiving substrate, thus forming a printed object on the receiving substrate, wherein the printed object is electrically conductive. The present invention further provides apparatus, devices and compositions for use with the method described.

A monolithic red / infrared semiconductor laser device is joined to a blue-violet semiconductor laser device. The distance between a blue-violet emission point in the blue-violet semiconductor laser device and an infrared emission point in an infrared semiconductor laser device is significantly shorter than the distance between a red emission point in a red semiconductor laser device and the infrared emission point. A blue-violet laser beam, a red laser beam, and an infrared laser beam respectively emitted from the blue-violet emission point, the red emission point, and the infrared emission point are introduced into a photodetector after being incident on an optical disk by an optical system comprising a polarizing beam splitter, a collimator lens, a beam expander, a λ / 4 plate, an objective lens, a cylindrical lens, and an optical axis correction element.