138results about How to "Increase light energy" patented technology

Methods, devices and systems for generating ultrashort optical linear chirped pulses with very high power by amplifying the pulses so that their temporal duration is longer than the storage time of the amplifying medium. The additional gain factor is related to the ratio of the storage time to the stretched pulse. A preferred embodiment connects a mode locked laser source that generates optical pulses whose duration is stretched with a chirped fiber Bragg grating. Embodiments include methods, devices and systems causing an extreme chirped pulse amplifier (XCPA) effect in an oscillator.

The invention discloses a spatially-separated pump-probe transient absorption spectrograph and a realization method. The realization method is characterized by generating a light source through a femtosecond light source system; realizing the beam splitting of pump light and probe light through a beam splitter; realizing the different time delay of the probe light through a time delay line; realizing the two-dimensional rotation and the calibration of the probe light within a horizontal plane and a vertical plane through a sweep reflector group; calibrating which means guaranteeing the incidence of the rotated probe light into a aperture within the front section of an objective lens; finally, obtaining a two-dimensional image formed on a sample under the combined action of the probe light and the pump light by a data collection system. According to the spatially-separated pump-probe transient absorption spectrograph and the realization method, the extremely high spatial discrimination can be realized, and moreover, the visual probe of carriers, excitors or plasmons can be realized.

The present invention provides a method and apparatus for sanitizing air within a ventilation system using ultraviolet light. The air is exposed to the ultraviolet light for a preselected duration of time and at a desired power level to achieve a desired level of sanitization.

The invention discloses a laser light source and a projection display device. Red light emitting efficiency is improved, and accordingly the advantage of improving overall brightness of the laser light source is achieved. The laser light source comprises an excitation light source body, a fluorescent wheel, a color filtering wheel and a control unit. The fluorescent wheel comprises a reflection portion and a transmission portion allowing the excitation light source body to transmit, and a fluorescent body capable of emitting yellow light after being excited by the excitation light source body and a fluorescent body capable of emitting green light after being excited by the excitation light source body are attached to the surface of the reflection portion. The color filtering wheel comprises a transparent portion, a red color filtering portion and a green color filtering portion. The control unit controls the fluorescent wheel and the color filtering wheel to rotate synchronously, the transparent portion of the color filtering wheel corresponds to the transmission portion of the fluorescent wheel and a part of the fluorescent body capable of emitting the yellow light after being excited by the excitation light source body, the red color filtering portion of the color filtering wheel corresponds to the other part of the fluorescent body capable of emitting the yellow light after being excited by the excitation light source body, and the green color filtering portion of the color filtering wheel corresponds to the a fluorescent body capable of emitting the green light after being excited by the excitation light source body.

A vehicle head lamp is disclosed for use in a vehicle, and includes a plurality of semiconductor light sources which differ in directions of radiation; an optical system disposed for common use by the plurality of semiconductor light sources; and a luminous energy control section for changing a ratio among luminous energies emitted by the respective semiconductor light sources in accordance with a vehicle-originated signal provided by a vehicle-side. In addition, the luminous energy control section may change the ratio among the luminous energy in accordance with a rotation angle by means of receiving a signal indicating a rotation angle of a steering wheel as the vehicle-originated signal.

The invention discloses a display panel, a fingerprint identification method thereof, a program unlocking method thereof and a display device. A curved-surface display region comprises a substrate base plate. A light emitting device and a protection cover plate are successively arranged on one side of the substrate base plate. Multiple optical detectors are arranged between the light emitting device and the substrate base plate. The light emitting side of the light emitting device in the curved-surface display region comprises an optical structure used for gathering light. The optical detectoris used for receiving light which is emitted by the light emitting device and reflected by a fingerprint when the finger touches the curved-surface display region of the display panel. According to the invention, the light emitting side of the light emitting device in the curved-surface display region comprises an optical structure used for gathering light, so when the finger of the user touchesthe region, the emission light of the light emitting device is firstly subjected to gathering and then shines on the finger of the user; and the energy of the light shines on the finger is quite strong, so the energy of the light reflected back to the optical detector by the finger is increased therewith, thereby facilitating improving accuracy of fingerprint identification.

Methods and devices are provided for activating brown adipose tissue (BAT) with light. Generally, the methods and devices can activate BAT to increase thermogenesis, e.g., increase heat production in the patient, which over time can lead to weight loss and/or improved metabolic function. In one embodiment, a medical device is provided that activates BAT by using light to stimulate nerves that activate the BAT and/or to stimulate brown adipocytes directly, thereby increasing thermogenesis in the BAT and inducing weight loss and/or improved metabolic function through energy expenditure. The light can be configured to directly or indirectly stimulate the nerves and/or the brown adipocytes. The light can be configured to indirectly stimulate the nerves and/or the brown adipocytes by activating a light activatable medium administered to a patient and configured to respond to the light to cause activation of the brown adipose tissue.

An infrared scope toy for observing a scene illuminated by infrared electromagnetic energy comprising an input focusing lens, an infrared sensor having an infrared sensitive surface and an output responsive to the infrared electromagnetic energy incident to the infrared sensitive surface, a display screen having a display surface and being operably connected to the output of the infrared sensor and capable of producing an image in the visible portion of the electromagnetic spectrum which is similar to the infrared electromagnetic energy incident to the infrared sensitive surface of the infrared sensor. The infrared scope toy overcomes the problem of seeing in low or nonexistence visible light situations and provides a toy for children and others, which may be used in playing games.

The invention relates to a surface plasma nanometer ring light filter provided with a base material. A noble metal film is pasted on the base material. A round ring matrix processed through a focused ion beam etching method is arranged on the noble metal film. The inner diameter and the outer diameter of each round ring in the round ring matrix are set in advance according to different monochromatic light. The base material is made of one of quartz and glass, and the noble metal film is made of one of gold, silver and platinum. The surface plasma nanometer ring light filter uses the highly symmetrical round ring structure to solve the polarization sensitive problem universally existing in antenna grooves and one-dimensional pile grating light filter parts, and enables application range of similar light filter elements to be wider and adapt to natural light of non polarization better.

The invention discloses a pixel defining layer which comprises a first defining layer and a second defining layer, wherein the first defining layer comprises dam bodies; the second defining layer comprises metal layers arranged on the side walls/part of the side walls of the tops of the dam bodies; the surfaces of the metal layers located at the tops of the dam bodies are of nano microstructures. The invention further provides a light-emitting device. A manufacturing method I comprises the following steps: preparing the second defining layer on the dam bodies, preparing a photoresist layer with the nano microstructure on the surface on the second defining layer through a nano imprinting procedure, and enabling the surface of the second defining layer on the tops of the dam bodies to be of the nano microstructure through an etching procedure. A manufacturing method II comprises the following steps: preparing the second defining layer with the nano microstructure on the surface on a substrate and the first defining layer in a grazing incidence depositing mode, and removing the second defining layer, which is located between the dam bodies, above the substrate through the etching procedure. The pixel defining layer disclosed by the invention can resist lateral light leakage to enable emergent light energy to be increased; the nano microstructures of the metal layers have dewatering characteristics, thus guaranteeing the reliability of ink dripping.

An LED multi-chip bonding die (1) comprises a packaging enclosure, a plurality of LED chips and a packaging cover, wherein the chips are arranged in one line from top to bottom on the emitting platform. Large area electrodes are equipped on the packaging enclosure and the packaging cover is made of transparent silicon gel so that the bonding die can emit larger light energy and higher luminance via the packaging cover while the heat produced by the chips can be quickly dissipated by the electrodes. A light strip (20) equipped with the bonding die comprises a plurality of bonding die sections and circuit board (2) and each bonding die section (1) comprises four LED multi-chip bonding dies (1) and a current-limiting resistor in series circuit. Each series circuit is connected in parallel and circuit board (2) is printed circuit board which can provide a optimal heat-dissipating structure for chips of bonding die.

Apparatus and method for measuring the fluorescence of nanodrop liquid samples is described in which the sample is held by surface tension between two anvil surfaces. Each anvil surface has an embedded optical fiber with its end finished flush with the surface in the containment area wetted by the sample with the fiber in line. Sample excitation is provided from the side of the sample remote from the containment area. By selection of the fiber transmission numeric aperture the impact of exciting and ambient light on the measurement is minimized. A method of virtual filtering is taught in which any ambient or exciting light that does impinge on the measuring sensor is corrected by subtracting a scaled representation of the source from the measurement. The method and apparatus is capable of detecting 1 femptomole of sodium fluorescein in 1 microliter of TE buffer.

The present invention provides a TiO₂—SiO₂ glass whose coefficient of linear thermal expansion upon irradiation with high EUV energy light is substantially zero, which is suitable as an optical member of an exposure tool for EUVL. The present invention relates to a TiO₂-containing silica glass having a halogen content of 100 ppm or more; a fictive temperature of 1,100° C. or lower; an average coefficient of linear thermal expansion in the range of from 20 to 100° C. of 30 ppb/° C. or lower; a temperature width ΔT, in which a coefficient of linear thermal expansion is 0±5 ppb/° C., of 5° C. or greater; and a temperature, at which a coefficient of linear thermal expansion is 0 ppb/° C., falling within the range of from 30 to 150° C.

The invention discloses a two-transmitting one-receiving optical component and an assembling method thereof. The optical component includes an optical fiber adapter and a support; the optical fiber adapter is assembled on the support, so that optical signals transmitted from a first laser transmitter of the optical component are coupled into optical fibers of the optical fiber adapter; and an included angle of a center shaft and a horizontal shaft of the optical fiber adapter is a theta angle. The optical signals transmitted by the first laser transmitter of the two-transmitting on-receiving optical component provided by an embodiment of the invention are coupled into the optical fibers of the optical fiber adapter which is inclined at a theta angle, thereby enabling the optical signals that enter the optical fibers to be transmitted along the center shaft of the optical fiber as far as possible, thus increasing light receiving energy of the optical fiber adapter to the optical signals transmitted by the first laser transmitter, and improving coupling efficiency of the optical component.

The invention relates to an optical fiber wavelength division multiplexer based on a photonic crystal fiber structure; the optical fiber wavelength division multiplexer is a three-core photonic crystal fiber, comprising a matrix material, a cladding formed by air vents and three fiber cores. The middle of the optical fiber is provided with a fiber core; each side of the fiber core at the middle of the fiber is provided with a fiber core; the three fiber cores have different refractive index distribution; the basic mode of the fiber core at the middle has the same effective refractive index with the fiber core of one side at and only at a certain wavelength position Lambada1, and the basic mode of the fiber core at the middle has the same effective refractive index with the fiber core of the other side at and only at another certain wavelength position Lambada2. The wavelength division multiplexer can separate the optical signals including Lambada1 and Lambada2 input by the fiber core at the middle, and output the signals respectively from the left fiber core and the right fiber core. The fiber multiplexer is characterized by having smaller size and large isolation, allowing the fiber length to have relatively large manufacturing error, realizing mass production, outputting the light from two fiber cores with larger gap, facilitating the optical coupling to other optical fibers, etc.

The present invention relates to a high sensitivity optical system of a differential optical absorption spectroscopy (DOAS) analyzer for gas concentration detection. According to the system, two optical axes of a collimating lens set and a condenser lens set intersect on a side of a large lens to form the optical axis intersection point, wherein the collimating lens set is arranged perpendicular to the condenser lens set; optical axes on both sides of the collimating lens set are respectively provided with a light source and a transmitted light reflector; optical axes of both sides of the condenser lens set are respectively provided with an optical fiber spectrometer and a reference light reflector; a spectroscope plated with a reflecting film is positioned on an angular bisector of a right angle, wherein the optical axes of the two adjacent sides of the collimating lens set and the condenser lens set intersect to form the right angle; the spectroscope is concurrently and obliquely arranged on the optical path comprising the half outgoing beam of the collimating lens set and the half incoming beam of the condenser lens set in the angle of 45 DEG, and the other half outgoing beam of the collimating lens set and the other half incoming beam of the condenser lens are provided with moveable baffles, wherein the positions of the movable baffles are switchable; the half of the beam emitted by the light source enters the reference light path, and the other half of the beam enters the measurement light path. According to the present invention, under the same light source radiationconditions, the light energy passing through the optical system of the present invention is strong, the signal-to-noise ratio is high, and the measurement precision is improved.

The invention relates to an image plane interference microimaging device and a method. The device comprises a light source, a microscope objective, a transverse shear beam splitter, an electric control rotary platform, an imaging objective, an area array charge coupled device (CCD) camera and a computer. The method includes that objects at a lighting site are imaged by an infinity conjugate microscope objective and then are emitted into the transverse shear beam splitter as parallel light, each light beam is transversely shore by the transverse shear beam splitter, and two light beams parallel to each other are obtained. After the light passes through the imaging objective, interference fringes are produced by the area array CCD camera; the electric control rotary platform is controlled and driven by the computer to achieve pushing imaging for the objects; and light intensity corresponding to the observing objects in each image is drawn from image sequences, interference information of the observing objects is combined again, and Fourier exchange calculation inversion is conducted for the interference information to obtain light spectrum information of the observing information. The image plane interference microimaging device is large in luminous flux, high in signal to noise ratio, and high in resolution ratio.

The invention discloses a laser light source device and laser projection equipment. The laser light source device comprises at least three groups of laser arrays, a light combining reflector and a polarization light combining mirror, wherein the polarization light combining mirror and the light combining reflector are used for combining laser beams. The laser light source device is advantaged in that the scale of a single laser array does not need to be enlarged any more, light energy of the light source is improved in a mode that laser beams of the laser arrays are combined through multiple sets of laser array incident light combining reflectors and the polarization light combining mirrors, the combined laser beams are similar to the laser beams of a single laser array in size, and the power of the laser beams is remarkably improved, therefore, purposes of increasing the laser emitting power and keeping the small laser beam size are achieved, elements after a light path of the laser array does not need to be changed for redesign, and design cost is saved.

A fingerprint sensing module includes a first substrate, an active device, a photosensitive element layer, a collimation structure layer, a second substrate, a plurality of micro lenses, and a spacer pattern. The active device is disposed on the first substrate. The photosensitive element layer is disposed on the first substrate and is electrically connected to the active device. The collimation structure layer is disposed on the photosensitive element layer. The second substrate is disposed on the collimation structure layer. The micro lenses are disposed on a surface of the collimation structure layer facing away from the photosensitive element layer, and overlap the photosensitive element layer. The micro lenses are divided into a plurality of microlens groups, and the microlens groups are respectively located in a plurality of sensing pixel areas of the fingerprint sensing module. The spacer pattern extends between the microlens groups.