32results about How to "Reduce light loss" patented technology

The embodiment of the invention relates to an optical scanner. The optical scanner comprises a polarizing beam splitter, a wave plate and an optical phased array chip. Wherein the polarizing beam splitter is used for dividing incident light source light into first laser with a first polarization state and non-working light with a second polarization state, reflecting the first laser and transmitting the non-working light, and the first polarization state is different from the second polarization state. The wave plate is located on the reflection light-emitting side of the polarizing beam splitter and used for receiving the first laser and emitting second laser with a third polarization state different from the first polarization state and the second polarization state. And the optical phased array chip is used for receiving the second laser and emitting reference light, and the optical phased array chip is also used for changing the emitting angle of the reference light. The embodiment of the invention further relates to a laser detection system with the optical scanner and an automatic driving vehicle applying the laser detection system.

The utility model provides an RGB (Red, Green and Blue) matrix independent optical module. The RGB matrix independent optical module comprises a lateral light-emitting direct type lamp bead, a miniature light guide type lens and a grating partition groove, the lamp beads are provided with independent lamp grooves and reflecting walls, RGB independent light emitting is achieved, and mutual interference of halo is avoided; the light guide type lens guides and uniformly distributes lateral light energy, and the surface of the lens is provided with an optical microstructure to optimize the light emitting angle and brightness. And the grating partition grooves realize light energy convergence and light isolation through the reflective material layer. The module can reduce the number of LEDs and power consumption, improves heat dissipation and display performance, supports modular assembly, and is suitable for constructing an LED display screen which is flexible in size, efficient and energy-saving.

This utility model relates to the field of lighting technology, and more particularly to a ceiling light, including a top panel, a lens, a back panel, a lamp panel, a mounting plate, and an optional battery. The top panel is formed by a cavity enclosed by a circular base plate and annular side plates. The base plate has a recessed portion to accommodate the lens, which is fixed by a ring rib and a positioning groove and glued to improve light efficiency and sealing. Symmetrical positioning parts are provided on the inner side of the base plate, which, together with the back plate, achieve horizontal and vertical positioning of the lamp panel, eliminating the need for independent elastic buckles and simplifying the mold design. The back plate is fixed to the top panel by a glue groove, elastic buckles, and the top panel, allowing for flexible switching of protection levels. The cable is clamped and fixed by the slots of the back plate and the base plate, avoiding the need for additional tail clips. The communication indicator light of the lamp panel corresponds to a thin-walled hole in the recessed portion of the base plate, and the thin-walled hole is designed to resist impact. The mounting plate is detachable and installable by a spring clip and a snap-fit ​​structure, facilitating ceiling installation. This ceiling light has an optimized structure, is easy to assemble, improves light efficiency and protection performance, reduces costs, and is suitable for various scenarios.

The application relates to the photovoltaic technology field, in particular to a back contact cell, a preparation method thereof, a back contact laminated cell and a photovoltaic module. The back contact cell comprises a substrate and a first passivation structure, and a first surface of the substrate is sequentially provided with a first hydrogenated amorphous silicon oxide layer, a second hydrogenated amorphous silicon oxide layer and a P-type doped layer. The oxygen doping ratio of the first hydrogenated amorphous silicon oxide layer is X1, the oxygen doping ratio of the second hydrogenated amorphous silicon oxide layer is X2, and X1 and X2 satisfy X1>X2. By arranging the laminated structure with the oxygen doping ratio gradient design, the asymmetric carrier transport channel can be formed, the blocking effect on the electrons and the transmission effect on the holes can be improved, the selective transmission of the carriers can be realized, the parasitic absorption at the interface can be reduced, the probability of the repeated absorption of the light by the substrate can be increased, the open-circuit voltage and the short-circuit current of the back contact cell can be improved, and the photoelectric conversion efficiency of the back contact cell can be improved.

The utility model discloses a waterproof slanting light anti -dazzle wall washer lamp belongs to wall washer lamp technical field, include: wall washer lamp body, the inside wall of wall washer lamp body is seted up and inserts the slot, and the inner chamber of wall washer lamp body is provided with circuit mainboard, and the side of circuit mainboard is seted up with a plurality of location recess, and the location recess is welded with the light source circuit board, and the upper portion of light source circuit board is installed with wall washer light source, integral type horizontal anti -dazzle grid, the surface is provided with a plurality of groups equidistance arrangement horizontal anti -dazzle stripe, and each group horizontal anti -dazzle stripe contains a plurality of horizontal anti -dazzle stripes, and is seted up in the insert slot, integral type vertical anti -dazzle grid, the surface is provided with a plurality of groups equidistance arrangement vertical anti -dazzle stripe, and each group vertical anti -dazzle stripe contains a plurality of vertical anti -dazzle stripes, also seted up in the insert slot, two waterproof silica gel rings, this wall washer lamp can select the anti -dazzle direction, and can realize the different light slanting degree through the inclination of the location recess on the circuit mainboard, and is more flexible.

The application discloses a flexible optical fiber based on liquid crystal elastomer and a preparation method and an actuating application device thereof. The flexible optical fiber based on liquid crystal elastomer comprises a liquid crystal elastomer core and a transparent elastomer cladding; the liquid crystal elastomer core comprises liquid crystal elastomer and light-responsive material. The preparation method injects a precursor of liquid crystal elastomer and a precursor of transparent elastomer into an inner barrel and an outer barrel of coaxial double barrels respectively, extrudes or prints a columnar body with a core-cladding structure through an extrusion method or a 3D printing method, and solidifies to obtain the flexible optical fiber. The actuating application device comprises a light source, a quartz optical fiber and the flexible optical fiber based on liquid crystal elastomer. The flexible optical fiber based on liquid crystal elastomer can construct a photo-driven device achieving full fiberization, integrates photo-actuation and optical transmission functions, effectively reduces the volume of a traditional actuating device, further realizes real-time, in-situ, remote and accurate actuation, and improves the practicability of the photo-driven device.

The invention provides a carbazole compound and an organic electroluminescent device thereof, and particularly relates to the technical field of organic photoelectric materials. The compound provided by the invention has good thermal stability and refractive index, can reduce the loss of light reflected by a nearby electrode during luminescence when being used as a covering layer material, and effectively improves the stability of a film layer, thereby improving the luminous efficiency of a device and prolonging the service life of the device. The preparation method of the compound is simple, raw materials are easy to obtain, and the compound can be widely applied to the fields of organic thin film transistors, panel display and the like and has good application effects and industrialization prospects.

The lens comprises a lens body, the peripheral wall of the lens body is a total reflection surface, a groove for containing a light source is formed in the bottom wall of the lens body, the peripheral wall of the groove forms a first incidence surface, the top wall of the groove is concaved upwards to form a second incidence surface, a pit is formed in the middle of the top wall of the groove, and the top wall of the pit forms a third incidence surface. The top wall of the lens body forms a first emergent face, a first emergent portion is arranged in the middle of the first emergent face, the top wall of the first emergent portion is concave inwards to form a second emergent face, a second emergent portion is arranged in the middle of the second emergent face, the top wall of the second emergent portion is concave inwards to form a third emergent face, the third emergent face is an arc face formed by rotation of a convex arc, and the second incident face is arranged below the second emergent face. According to the scheme, the main light spots and the auxiliary light spots with clear transition boundaries are formed through the single lens, the light and shade alternating illumination effect is achieved, the main light irradiates the main light spots of the main exhibits, the auxiliary light spots irradiate the accompanying articles on the peripheries of the main exhibits, and the spatial layering sense is improved.

The utility model provides an LED packaging structure and a lamp bead, the LED packaging structure comprises a bowl cup support, the bowl cup support is internally provided with a light-emitting chip, a reflection part and at least two fluorescent layers, the light-emitting chip is located on the bottom wall of the bowl cup support, the at least two fluorescent layers sequentially cover the side, away from the bowl cup support, of the light-emitting chip, and the reflection part is located on the bottom wall of the bowl cup support. The excitation wavelengths are sequentially decreased along the direction far away from the light-emitting chip; the reflecting part is at least arranged on the inner side wall of the bowl-cup support, and the reflectivity of the reflecting part is larger than that of the bowl-cup support. Therefore, through the high reflectivity of the reflecting part, the light absorption of the bowl cup support can be reduced, the light emitting loss is reduced, the lighting effect is further improved, and the lighting effect of the LED product can be further improved through the sequential excitation of the plurality of fluorescent layers.

The invention relates to an attached photoelectric health monitoring device and method based on a photoelectric detector, and the device comprises an ultrathin flexible substrate which is made of Parylene-C; the S-shaped interconnection electrode is formed on the ultrathin flexible substrate; the perovskite photoelectric detection layer with the two-dimensional Ruddlesden-Popper structure is regionally deposited on the snakelike interconnected electrode, and the general formula of the perovskite photoelectric detection layer is (PEA) 2 (MA) < n > < 1 > Pb < n > I < 3 > < n > < 1 >; the LED light source is arranged on the ultrathin flexible substrate, and the LED light source and the two-dimensional Ruddlesden-Popper structure perovskite photoelectric detection layer are located on the same plane to form a reflective detection mode; and the packaging layer covers the two-dimensional Ruddlesden-Popper structure perovskite photoelectric detection layer and the LED light source, the material of the packaging layer is Parylene-C, and the packaging layer and the ultrathin flexible substrate jointly form a symmetrical double-layer packaging structure. Compared with the prior art, the invention has the advantages of high fitness and comfort, high sensitivity, quick response, high environmental stability and mechanical durability, low power consumption, high signal-to-noise ratio, high signal quality and detection precision and the like.

The utility model provides a kind of far image display device, including image source, optical module, window and shell.Image source is configured as exit image light.Optical module is set in the light path downstream of image source, including at least one free curved mirror, to receive the image light amplification and reflection of image source exit.Optical module is set in the light path downstream of window, and reflected image light is emitted by window.Image source and optical module are set in shell, and reflected image light is emitted to the outside of shell by the position of window in shell.Window includes two mutually spaced and non-light-transmitting sub-windows.The distance between the shape center of two sub-windows is 50-80mm.Or window is connected whole, and optical module deflects image light, so that the optical axis of image light reflected by free curved mirror is perpendicular to window.The embodiment of the utility model is beneficial to simplify optical module, simplify far image display device structure, reduce volume, reduce light loss, and meet different use requirements.

The utility model discloses a high beam light guide piece, installation structure and car lamp, including light guide piece body, light guide piece body is made of silica gel material integral injection moulding, light guide piece body includes the light entrance portion that is provided at one end, light guide piece body other end is provided with the light exit portion, light guide portion is provided between light entrance portion and light exit portion, light guide portion is columnar silica gel rod, the silica gel rod is cylindrical silica gel rod, the silica gel rod is cylindrical silica gel rod, the silica gel rod is cylindrical silica gel rod, and the silica gel rod is cylindrical silica gel rod. The light inlet portion comprises a funnel-shaped cavity located at one end of the light guide portion, the cavity bottom of the funnel-shaped cavity is fixedly connected with a protruding light inlet protrusion, the light guide piece body of the high-distance light guide piece is integrally formed by the silica gel material in an injection molding mode, the silica gel material has good flexibility and formability, the light guide piece has a proper refractive index, and therefore the light guide piece body is not prone to falling off. Light rays can be effectively guided to be transmitted inside, light loss is reduced, yellowing or aging is avoided, meanwhile, the silica gel can be rapidly made into a light guide piece of a proper size through injection molding, ejection and other forming methods, large-scale production can be achieved, efficiency is improved, and cost is reduced.

The geometric light guide column comprises a body, a light inlet part and a light outlet part, the body is connected in a surrounding mode to form an isosceles trapezoid face and an isosceles triangle face, the isosceles trapezoid face comprises a first bottom edge, a second bottom edge and a first waist edge, and the isosceles triangle face comprises a third bottom edge and a second waist edge. The first waist edge and the second waist edge coincide; the light inlet part is located at one end of the body, a regular hexagon surface is formed on the light inlet part, the side length of the regular hexagon surface coincides with the first bottom edge and the third bottom edge, and the regular hexagon surface is used for receiving a light source; the light emitting part is located at the other end of the body, a regular triangle face is formed on the light emitting part, the side length of the regular triangle face coincides with the second bottom edge, and the regular triangle face is used for guiding out light. According to the geometric light guide column, through geometric transformation of the shape of the geometric light guide column, the refraction structure in light rays is improved, then refraction of the light rays is converged and contracted, and the problem that the light emitting angle of multicolor mixed light is difficult to shrink is solved.

The application provides a design method of a curved asymmetric directional coupler and the directional coupler, relates to the technical field of asymmetric directional coupler design, and takes the average square error and minimum of the transmission power proportion in the first combined waveguide and the transmission power proportion in the second combined waveguide in the curved asymmetric directional coupler as the objective function, takes the value range of the basic structure parameters related to the design of the curved asymmetric directional coupler as the constraint condition, establishes a parameter optimization model and solves the parameter optimization model, avoids the defects that the traditional design parameter selection is limited by artificial experience, and improves the parameter design efficiency and accuracy. The curved asymmetric directional coupler can improve the phenomenon that the traditional symmetric directional coupler is too sensitive to wavelength, effectively reduce the optical loss caused by the curved waveguide, and ensure the accuracy of the designed coupling ratio.

An optical system comprising: (i) a light source, (ii) at least one polarization controller positioned downstream of the light source and comprising: an optical fiber and a carrier surrounding the optical fiber, the carrier comprising an off-center through-hole having at least one collapsed region, such that the optical fiber is positioned within the through-hole and contacts the at least one collapsed region of the through-hole, (iii) at least one optical fiber coupled to the polarization controller; and (iv) at least one optical detector positioned downstream of the at least one optical fiber.

This invention relates to the field of marine floodlight technology and discloses a marine LED floodlight, including a lamp post, a rotating rod fixed to the top of the lamp post, a connecting rod fixed to the side of the rotating rod, a rack fixed to the end of the connecting rod away from the rotating rod, a limit block fixed to the side of the rotating rod, an illumination assembly including a luminaire on the rotating rod, a protective assembly for protecting the luminaire on the top of the rotating rod, and a pushing assembly on the lamp post for moving the luminaire. The pushing assembly consists of a pushing structure and a connecting structure. This invention significantly delays the light decay of the LED luminaire through protective and sealing structures, enabling it to maintain high light transmittance and low light loss for a long time in the highly corrosive marine environment, thereby reducing the input power required to maintain illuminance and achieving energy-saving operation.

The application provides a laser projection device, a light source comprising a red laser component, a green laser component and a blue laser component, which respectively emit red laser, green laser and blue laser; the red laser component is arranged close to a light outlet of the light source; a static diffusion sheet is arranged in the light path of the combined blue laser and green laser or respectively for the blue laser and the green laser, so that the blue laser and the green laser are first diffused and then combined with the red laser beam; a converging lens group is arranged at the light outlet of the light source, which is used for reducing the spot of the combined three-color laser beam and then emitting the three-color laser beam from the light outlet of the light source; a diffusion wheel and a light receiving component are arranged between the converging lens and the light receiving component, which are used for diffusing the three-color laser beam in the converging state; and the light receiving component is a light guide pipe or a compound eye lens, which is used for homogenizing the three-color laser beam after diffusion. The laser projection device can present a projection picture with high brightness and good color.

The application belongs to the technical field of solar light utilization, and discloses a solar light energy optical fiber leading-in system with fixed lenses; the system comprises a lens mounting module, which is used for fixing and mounting convex lenses on the outer vertical wall surface of a building; and a sun position determining module, which is used for determining the real-time position of the sun through an astronomical algorithm; the application can flexibly select two kinds of focus-pursuing modes according to different situations, so as to ensure that the solar light energy is effectively and quickly led into the input end of the optical fiber, the optimal degree of freedom combination set of the mirror array corresponding to the real-time position of the sun is quickly determined, the fast focus-pursuing is realized, the focal point spots reflected by the mirrors are accurately superimposed on the input end of the optical fiber, and the focal point spot intensity of the input end of the optical fiber is maximized; the fast focus-pursuing of the input end of the optical fiber is also realized, the focus-pursuing time is reduced, the current optical fiber input end position which is not fixed is adjusted, and the solar light can be accurately led into the input end of the optical fiber.

The application provides a display screen and a display device, and relates to the technical field of display. The display screen comprises a display module, a first electrode layer, an insulating boss, an electrochromic layer and a second electrode layer. The display module comprises a pixel layer and a first packaging layer, the pixel layer comprises pixel units, and the first packaging layer covers the pixel layer; the first electrode layer is arranged on the side of the first packaging layer away from the pixel layer in a laminated manner, the first electrode layer comprises a middle region and an edge region surrounding the middle region, the orthographic projection of the pixel unit on the first electrode layer is located in the middle region; the insulating boss is protruded on the surface of the side of the middle region away from the display module, a plurality of insulating bosses correspond to a plurality of pixel units one by one; the electrochromic layer covers the insulating boss, the region of the middle region not occupied by the insulating boss and the edge region; and the second electrode layer is arranged on the side of the electrochromic layer away from the display module in a laminated manner. The display screen of the application has a good anti-peeping effect and does not need to be replaced frequently.

This invention relates to the field of optical communication device packaging technology, and discloses a polarization-maintaining fiber receptacle and box coupling welding equipment and method, including a fixture module, a polarization-maintaining fiber vision module, and a lens coupling module, a receptacle coupling module, and a welding module distributed around the fixture module. This layout makes the coupling welding equipment more compact, reduces its space occupation, and improves the production efficiency of coupling welding, ensuring the product quality of optical module products. By first coupling the lens and receptacle inside the box simultaneously and then completing the welding of the receptacle to the box, the coupling optical power value is higher and the optical loss is lower, which can meet the mass production of optical module products with transmission rates of 400G and above, significantly improving the overall production yield and efficiency, and reducing costs.

The invention relates to the technical field of optical thin films, and particularly discloses a deep ultraviolet special-shaped quartz element antireflection film and a preparation method thereof.The preparation method comprises the steps that a first MgF2 thin film layer is obtained through deposition on the surface of a substrate, and a first fluorine-doped thin film layer is prepared; preparing an antireflection film layer on the surface of the first fluorine-doped film layer; and depositing a first MgF2 thin film layer on the surface of the antireflection film layer to prepare a first fluorine-doped thin film layer, depositing a second MgF2 thin film layer on the surface of the antireflection film layer to prepare a second fluorine-doped thin film layer. According to the deep ultraviolet special-shaped quartz element antireflection film provided by the invention, the first fluorine-doped MgF2 thin film layer is deposited on the substrate, so that the intrinsic absorption difficulty of the special-shaped quartz substrate at 193nm can be effectively solved, and the antireflection rate is improved; and in a 193nm wave band, the refractive index of MgF2 is lower than that of the substrate, and as a bottom layer film, the first MgF2 thin film layer can enable incident light to be subjected to reflection and interference on a film layer interface, reduce reflected light and enable more light to enter the substrate, so that the absorption proportion of the light in the substrate is relatively reduced, the overall light loss of the system is indirectly reduced, and the anti-reflection rate is improved.

The utility model provides a kind of improved vehicle ornament to improve the light guide efficiency of light guide layer needing to be bonded.The vehicle ornament includes: light guide layer (100);Functional layer (200);Glue layer (300);And low refractive index layer (400), the low refractive index layer (400) is arranged between the light guide layer (100) and the glue layer (300), the glue layer (300) is arranged between the low refractive index layer (400) and the functional layer (200) to the light guide layer (100) and the low refractive index layer (400) are bonded to the functional layer (200);Wherein, the refractive index of the low refractive index layer (400) is less than the refractive index of the light guide layer (100) to limit the light ray conducted by the light guide layer (100) from the light guide layer (100) into the low refractive index layer (400).

This invention belongs to the field of power grid optimization dispatching and provides a day-ahead optimization dispatching method and system for the economical operation of photovoltaic and energy storage power plants. Based on day-ahead output forecasting results, a day-ahead dispatching model is built to solve for the optimal day-ahead output curve. The model aims to maximize the daily profit of the photovoltaic and energy storage power plant, taking into account the operational constraints of both photovoltaic and energy storage, and incorporating curtailment losses related to curtailment volume and grid connection prices. An improved genetic algorithm is used to solve the day-ahead dispatching model to obtain the optimized dispatching results for the photovoltaic and energy storage power plant. The improvements to the genetic algorithm include the introduction of an adaptive mechanism and an improved selection mechanism. This invention can effectively improve the economic efficiency of day-ahead dispatching for photovoltaic and energy storage power plants.

The invention provides a spectral selective super-hydrophobic photovoltaic gain coating as well as a preparation method and application thereof, and belongs to the technical field of coatings. The coating comprises 45%-65% of a water-based resin matrix, wherein the water-based resin matrix is a hybrid emulsion formed by fluorosilicone modified acrylic resin and a hydroxyl-terminated aliphatic polyurethane prepolymer; 5%-10% of an infrared reflection nanometer material; 3%-6% of hydrophobic nanoparticles; 1%-3% of a dispersant; 1%-3% of a silane coupling agent; 0.5%-2% of a stabilizer; 0.5%-1.5% of a rheological additive; 0.2%-0.5% of an organic silicon defoaming agent; and the balance of water. According to the invention, a spectral selective thermal management function and a super-hydrophobic self-cleaning function are deeply fused in a water-based coating system on a micro scale, so that the efficiency of the component is improved from two dimensions of reducing light loss and heat loss, and the durability and environmental friendliness of the coating ensure the reliability of long-term application of the coating.

The utility model belongs to the technical field of automobile atmosphere lamp, concretely relates to a signal lamp of thick wall light guide and light curtain combination, including LED module, light guide plate, lens, wherein the light guide plate is integral piece, including plane plate and circular arc plate, wherein circular arc plate sets in the position of the middle part of plane plate lower end, and the plane plate front end edge is equipped with a plurality of lenses, LED module is located in the front end of lens, can emit the light ray irradiation into the lens, and a part of light ray passes through plane plate after the lens and emits, another part passes through circular arc plate and emits, the utility model can realize the optical effect of being different from others, since the light guide adopts the laser processing mode, visual observation does not have the tooth trace of other ordinary light guide tooth.

The application relates to the technical field of semiconductor lighting, in particular to a full-spectrum high-color-rendering LED lamp bead. The lamp bead comprises an LED support, a blue light excitation chip, a red light enhancement chip, a multi-component fluorescent material system, a silicone encapsulation lens and a heat management structure. The blue light excitation chip and the red light enhancement chip are die-bonded on the LED support and form electrical connections with the positive and negative electrode pads respectively; the multi-component fluorescent material system is formed on the chip surface by adopting a partition coating process; the heat management structure comprises a high-thermal-conductivity ceramic substrate and a silver-plated copper alloy support frame. The application realizes full-spectrum coverage through the blue light excitation chip combined with the multi-component fluorescent material system, and simultaneously configures the red light enhancement chip to supplement the red light band energy, adopts an optimized partition coating process and a multi-layer fluorescent structure design, effectively controls the proportion of blue light overflow, and improves the light conversion efficiency. The lamp bead can significantly improve the general color rendering index Ra and the special color rendering index R9, realizes low blue light hazard, high luminous efficiency and good thermal stability.

The invention provides a Michelson modulator containing a spiral waveguide phase shifter. The Michelson modulator comprises a beam splitter, the spiral waveguide phase shifter and a reflector which are connected in sequence. The spiral waveguide phase shifters comprise a first spiral waveguide phase shifter and a second spiral waveguide phase shifter; the reflecting mirrors comprise a first reflecting mirror and a second reflecting mirror; two output ports of the beam splitter are respectively connected to the first spiral waveguide phase shifter and the second spiral waveguide phase shifter; the first reflecting mirror is arranged at the tail end of the first spiral waveguide phase shifter, and the second reflecting mirror is arranged at the tail end of the second spiral waveguide phase shifter. The waveguide of the phase shifter structure in the Michelson modulator is designed into a spiral shape, so that the occupied area of the device is remarkably reduced, and the compactness of the device is improved. In addition, the structure and the performance of the modulator are further optimized in combination with the Bragg reflector, and efficient modulation is achieved on the basis that the modulation length and the modulation bandwidth are not sacrificed.

The application belongs to the technical field of photocured polymer optical waveguide, and provides a fluorine-containing acrylate polymer and a preparation method thereof, a fluorinated polymer photoresist material and application thereof.The fluorine-containing acrylate polymer is obtained by radical polymerization reaction of monomers; the monomers include fluorine-containing acrylate monomers and epoxy monomers; the fluorine-containing acrylate monomers are represented by structures G1 and / or G2; in G1, x is an integer of 0-10, and n is an integer of 1-15; in G2, y is an integer of 0-10, and m is an integer of 1-15.The fluorine-containing polyacrylate structure with an alkyl chain as a main structure is introduced, hydrogen atoms are replaced by fluorine atoms, the C-H bond absorption in the frequency band of optical communication is reduced, and the transmission light loss is reduced; and when the fluorine atoms are used in the fluorinated polymer photoresist material, the surface energy of the photoresist material is reduced, and the film-forming property is better than that of SU8.

The utility model relates to the field of light source structures, and discloses a backlight source and a detection device. The first lamp panel comprises a first circuit board and infrared lamp beads mounted on the first circuit board in an array manner; the second lamp panel is arranged on the light emitting side of the second lamp panel and comprises a second circuit board and visible light lamp beads installed on the second circuit board in an array mode; a total reflection cylinder is installed on the first circuit board, the infrared lamp beads are located in the total reflection cylinder, the reflection cylinder penetrates through the second circuit board, and a diffusion plate is further installed on the light emitting side of the second lamp panel. The backlight source and the detection device provided by the utility model not only can provide infrared light backlight, but also can provide visible light backlight, so that the application range is effectively widened.