49 results about "Light cone" patented technology

The invention provides a composite light spot laser processing head and a processing method, and belongs to the technical field of laser processing. The composite light spot laser processing head comprises a light source, a collimating lens, a light splitting cone lens and a multi-curvature focus lens, the light source, the collimating lens, the light splitting cone lens and the multi-curvature focus lens are sequentially arranged in the direction of a light beam emitted by the light source, a center hole is formed in the center of the light splitting cone lens, and a light incident surface of the multi-curvature focus lens is a convex aspheric cambered surface. The aspheric cambered surface comprises a first mirror surface area and a second mirror surface area which are arranged from inside to outside in the radial direction, and the mirror surface curvature of the first mirror surface area is smaller than that of the second mirror surface area. By the adoption of the composite light spot laser processing head, point-ring composite light spots can be stably generated, meanwhile, the structural complexity and the manufacturing cost are reduced, and structural miniaturization and improvement of scene use adaptability are achieved.

The application relates to the technical field of laser lighting, in particular to a non-electric manual laser switch and a using method thereof, and aims to solve the problems of poor explosion-proof performance, high laser leakage risk, large coupling loss and stray light interference of an existing laser switch. The switch is connected in series between a light fiber at a light emitting end of a laser and a light fiber at a receiving end of a lighting system, and comprises a manual operating mechanism, a double-lens assembly, a high-precision positioning pin, a light cone assembly, a stray light protection piece and a shell. The switch realizes light path on-off through pure mechanical manual operation. When the switch is turned on, the double lens is accurately aligned through the positioning pin, and laser is coupled and transmitted with low loss. When the switch is turned off, the light cone absorbs laser on the laser side, and the stray light protection piece blocks external stray light. The switch does not have any electrical components, meets the Exd IIC T6 explosion-proof grade, has a coupling loss of less than or equal to 0.2 dB, has laser leakage of less than or equal to 0.01 mW when turned off, is suitable for environments of-40 DEG C to 85 DEG C, and is suitable for explosion-proof scenes such as natural gas pipe corridors and chemical industrial parks. The switch is convenient to operate and has a long service life.

The invention provides a photon event camera, which comprises an acquisition module and a processing display module, and is characterized in that the acquisition module is used for acquiring photon events and comprises an image intensifier, a coupling light cone, a sensor and a gating unit; the image intensifier is used for amplifying an incident weak light signal, the coupling light cone is connected with the image intensifier and the sensor and is used for transmitting the amplified light signal, and the sensor receives and detects the amplified light signal and then outputs a detection signal; the sensor outputs a plurality of pixel event clusters generated by the plurality of photon signals as detection signals to the upper computer; the processing display module identifies a pixel event group formed by a single photon signal as a photon event, identifies a plurality of pixel event groups generated by a plurality of photon signals as a plurality of photon events, and displays and outputs the photon events corresponding to a space coordinate and a time coordinate. The method is suitable for measuring photon signals in a weak light scene, and has single-photon-level sensitivity; and the method is small in generated data volume, low in data volume and suitable for long-time acquisition.

1. The name of the design product: photography spotlight (PH-354). 2. The use of the design product: the design product is used for mounting on a photography lamp to create special light effects such as spotlighting, light chasing, projection, modeling, and light supplementation during photography and video production. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The embodiment of the utility model provides a transparent lamp body light-emitting device. The transparent lamp body light-emitting device comprises a transparent light guide part, a lamp holder connecting assembly and a light-emitting part. The transparent light guide part comprises at least one light conduction surface; the lamp holder connecting assembly is detachably connected with the transparent light guide part; the light-emitting component is detachably arranged in the lamp holder connecting assembly. The light-emitting component comprises at least one light-emitting area, and the light path of the light-emitting area is matched with the at least one light conduction face. In the dark environment, the transparent light guide part can present the effect of a suspended light ring or a transparent light cone, a light source is invisible, only the geometric aesthetic feeling of light shaping is displayed, soft shading is generated through multiple refraction of light in a transparent medium, dazzling light spots are avoided, and the transparent light guide part is suitable for emotional scenes such as bedrooms and restaurants.

The utility model discloses a projection light cone structure and projection equipment, wherein the projection light cone structure increases the folding structure through the light entrance face of light cone, carries out twice reflection through the first incidence surface and the second incidence surface of the intercalation angle, and can change the slope of two incidence surfaces to adjust the reflection angle of light, realizes the optimization of the illumination distribution of light, and expands the adjustment range of light exit angle. Thus effectively reduce the optical expansion of light source from the light cone exit, reduce the luminous flux loss, improve the optical utilization.

An optical system includes a display, a lens assembly, and a multilayer beam shaping film disposed between the lens assembly and the display. The optical system is configured to display a virtual image for viewing at an exit pupil of the optical system. The beam shaping film includes an array of optically transparent lenses arranged two-dimensionally on an opaque layer. The opaque layer defines a plurality of through openings aligned with the lenses. For an image light cone emitted from each position on an image formed by the display, the beam shaping film transmits and shapes the emitted cone such that the transmitted and shaped cone exits the lens assembly as collimated image light having a first integrated energy E1, and passes through and substantially fills the exit pupil, the passed collimated image light having a second integrated energy E2, such that E2 / E1 ≥ 0.2.

An optical system includes a display, at least one lens, and at least one of a partial reflector and a reflective polarizer. The optical system forms a virtual image of an image emitted by the display for viewing by an eye. The emitted image includes a plurality of cones of image light. Each cone of image light propagates from a different corresponding location on the emitted image and includes a central light ray propagating along a central axis, such that in each of orthogonal first and second planes that include the central axis, an intensity distribution of the cone of image light as a function of angle relative to the central axis includes a substantially flat peak having a full width of at least 15 degrees across which the peak changes by less than about 20%, and a corresponding fullwidth at half maximum that is less than about 60 degrees.

The application relates to a projection light machine and a projection device. The projection light machine comprises a light source, a light cone, a collimating lens, a focusing lens and a lens which are arranged in sequence along the propagation path of the outgoing light of the light source; the light cone is used for collecting the outgoing light of the light source and emitting the light rays from an outlet; the collimating lens is used for collimating the light rays; the focusing lens is used for converging the light rays towards the lens; and the lens is used for projecting the light rays; the projection light machine satisfies the condition formula: [|ra2|, |rb2|]max <= D / 2; ra2 is the distance between the incident point of the light ray directly emitted at the edge of the outlet on the lens and the optical axis; rb2 is the distance between the incident point of the light ray emitted from the light cone after reflection at the edge of the outlet on the lens and the optical axis; and D is the effective aperture of the lens. The above projection light machine has small light ray loss, high light ray utilization rate and is beneficial to improving the projection brightness.

The application provides a composite light spot laser processing head and a processing method, and belongs to the technical field of laser processing. The composite light spot laser processing head comprises a light source, a collimating mirror, a light splitting cone lens and a multi-curvature focusing mirror, wherein the light source, the collimating mirror, the light splitting cone lens and the multi-curvature focusing mirror are sequentially arranged along the light beam direction of the light source, the center of the light splitting cone lens is provided with a center hole, the light entrance surface of the multi-curvature focusing mirror is an outer convex aspheric arc surface, the aspheric arc surface comprises a first mirror surface area and a second mirror surface area which are sequentially arranged from the inside to the outside in the radial direction, and the mirror surface curvature of the first mirror surface area is smaller than that of the second mirror surface area. The composite light spot laser processing head can stably generate a point-ring composite light spot, reduce the structural complexity and manufacturing cost, realize the miniaturization of the structure and the improvement of the scene use adaptability.

The invention relates to an illumination device for hair, comprising a support device (110) which defines an interior space (111) with an outer contour (112), wherein the interior space (111) of the support device (110) is dimensioned such that the support device (110) is suitable for at least partially surrounding a human head at a distance. A plurality of light sources (310, 320, 330) are arranged on the support device (110, 350) in a distributed manner, wherein each light source (310, 320, 330) is configured to emit a light cone (312, 322, 332) directed towards the interior space (111). The light sources (310, 320, 330) are arranged and can be controlled by a control device (340) such that light cones (312, 322, 332) from adjacent light sources (310, 320, 330) partially overlap in a virtual surface (360) spaced apart from the outer contour (112) and reach an average irradiance (illumination intensity) of 5 to 70 mW / cm2 in the virtual surface (360), wherein the virtual surface (360) extends at a distance of 1 to 70 cm from the outer contour (112) and the virtual surface represents the contour of a human head.

A lighting device for hair comprises a support device (110) defining an interior space (111) with an outer contour (112), wherein the interior space (111) of the support device (110) is dimensioned such that the support device (110) is suitable for at least partially surrounding a human head at a distance therefrom. A plurality of light sources (310, 320, 330) are distributed on the support device (110, 350), wherein each light source (310, 320, 330) is configured to emit a light cone (312, 322, 332) directed toward the interior space (111).

The invention relates to a common-optical-path light splitting type SF6 gas leakage optical detection system and method, and belongs to the technical field of gas leakage optical detection, and the method comprises the steps that a front imaging lens group captures and converges infrared radiation beams of a target scene to form a parallax-free unified light cone; the light splitting module performs energy splitting on the entering light cone to obtain two paths of synchronous light beams, and the two paths of synchronous light beams enter the first imaging channel and the second imaging channel respectively; the first imaging channel and the second imaging channel are respectively used for filtering and imaging the entered light beam to obtain an original measurement image influenced by SF6 absorption and an original reference image not influenced by SF6 absorption; the image processing unit is used for carrying out correction and global normalization processing on the synchronously acquired original measurement image and the original reference image, and then carrying out difference calculation to obtain a difference image; and carrying out binarization processing on the difference image, and detecting the contour and position of SF6 gas leakage. According to the invention, the identification capability of trace SF6 gas leakage is stronger, and the detection sensitivity and precision are effectively improved.

Sterilization unit (100) for a hypothermia device with a cooling circuit, the sterilization unit comprising an inlet (1), an outlet (9), a reactor body (3) and an irradiation unit (5) with a light source (7) for generating ultraviolet radiation, wherein the sterilization unit can be connected to the cooling circuit via the inlet and the outlet, the inlet of the cooling circuit is in fluid communication with an interior (13) of the reactor body, and wherein the irradiation unit is designed such that a light cone (17) of the light source at least partially irradiates the interior of the reactor body.

A self-focusing three-dimensional annular photoelectric gas sensor probe (10) and a sensor device. The self-focusing three-dimensional annular photoelectric gas sensor probe comprises a three-dimensional annular concave reflecting ring (120), which is a concave circular ring taken from a hollow sphere with a central section (122) as a central symmetry plane reference and including the central section (122), wherein the reflecting ring (120) is fixed on a base (130), the base (130) is provided with two beam entry and exit through holes, and a planar reflecting mirror (140) at an angle of 45°to the central section (122) is arranged above each of the beam entry and exit through holes; and one laser (51) and one detector are respectively arranged below the two through holes, and the optical axes of the two beam entry and exit through holes are both perpendicular to the central section (122). By using the laser (51) as a light source that emits a light-cone-shaped beam (50) having a very small divergence angle, and utilizing the focusing characteristics of a three-dimensional annular concave mirror, the beam subjected to multiple reflections is converged on a photosensitive surface of a detector, so as to form a self-focusing reflection system in which the light source and the detector serve as focal points for each other. The difficulty of adjusting a light path is reduced; and the overall design reduces the complexity of the production process and improves the production yield, thereby facilitating large-scale production.

This invention relates to an automatic lightweight cone penetrometer, comprising a trolley and a fixed support. The fixed support is mounted on the front outer surface of the trolley, and a movable rod is fixedly connected to the upper part of the right outer surface of the fixed support. A control unit drives a pull rope to lift a hammer, which is then limited by a guide rod, ensuring the hammer accurately lands on the hammer base. This allows the probe at the lower end of the hammer base to effectively penetrate the ground. A hammer-counting sensor on the hammer base transmits data to the control unit, recording the number of hammer strikes. This eliminates the need for manual recording of hammer strikes and manual lifting of the hammer, reducing labor intensity and saving labor costs. Furthermore, when pulling the probe out of the ground, the use of a toothed belt and gears further reduces labor intensity.

The present invention relates to a measuring apparatus (500)(1) that can be used particularly in a context involving control of spectral analysis of an individual moving object (2). The measuring apparatus (500) includes a probe (1) having a surface (100) from which one or more illumination optical fibers (10) and measuring optical fibers (20) are exposed. The optical fibers (10, 20) are arranged such that at least one of the second receiving light cones (21) intersects at least one first receiving light cone (11) at a distance of less than 10 mm from the surface (100). The measuring apparatus (500) also includes a triggering device (8) that detects the object (2) upstream of the probe (1) to activate or deactivate the probe's observation of the object (2).

This invention provides a novel photoelectric liquid level sensor, comprising: a light-emitting device for emitting infrared light or laser light; a light guide block vertically mounted between the light-emitting device and a receiving device; a receiving device for receiving the intensity of reflected light; a signal amplification and processing device electrically connected to the receiving device for processing the reflected signal; and an MCU controller electrically connected to the signal amplification and processing device for determining the presence or absence of liquid based on the processed signal and outputting a corresponding signal. The light guide block is configured such that when there is no liquid, the air and the light guide block form a mirror, causing the emitted light to reflect; when there is liquid, the light guide block and the liquid have similar densities, so there is no mirror, and the emitted light passes directly through. This invention, through its vertical light guide block and transmissive optical path design, eliminates the traditional triangular light cone structure, achieving non-invasive installation, high-precision detection, and reduced production costs.

The invention relates to the technical field of semiconductor laser preparation, and discloses a novel handheld high-power light cone integrated semiconductor laser and a preparation method thereof.The laser comprises a first heat sink and a second heat sink which are stacked up and down, chips and electrodes are attached to the first heat sink and the second heat sink respectively, and a back-to-back series structure is formed through insulation gaskets and bent electrode plates; and the screws are matched with the insulating terminals to realize mechanical locking. The light cone integrated at the front end covers the light emitting area of the double chips, and rectangular or square light spots with uniform energy are output through total reflection light mixing. The preparation method comprises the following steps: preparing upper and lower semi-finished modules respectively; the inverted buckles are stacked and welded to form a series loop; carrying out mechanical locking and low-temperature insulation packaging; and integrating the optical cone. Power multiplication is achieved through space stacking, connection reliability is guaranteed through the step welding technology, and the LED lamp has the advantages of being small in size, good in heat dissipation, excellent in light spot quality and stable in structure.

The invention discloses an optical fiber light cone modeling and transmittance calculation method, and belongs to the technical field of three-dimensional modeling and physical simulation, and the method comprises the steps: constructing a simplified optical fiber light cone three-dimensional physical model; based on a simplified optical fiber light cone three-dimensional physical model, the primary multifilament rods are classified according to radial distances, and the function relation between the number of the primary multifilament rods and the radial distances is obtained through statistics; wherein the radial distance refers to the distance between the central position of the primary multifilament rod on the end face of the large end of the optical fiber light cone and the central position of the optical fiber light cone; calculating the transmittance of the primary multifilament rod in a numerical simulation mode to obtain the transmittance of the primary multifilament rod at different radial distances, and fitting a curve between the radial distance and the transmittance; and calculating the effective transmittance of the optical fiber light cone based on the function relationship and the curve. According to the method, efficient modeling of the optical fiber cone can be realized, and the calculation precision and the calculation complexity are effectively balanced.

The invention discloses a generalized compound parabolic condenser based on reflection light cone matching and a design method thereof, and belongs to the technical field of solar photo-thermal utilization. The device comprises a receiving body, a main reflecting mirror located below the receiving body and an auxiliary reflecting mirror located at the bottom of the receiving body. Under the condition of a given receiving half angle, independent geometric control parameters are introduced, rigid constraints of the height and the receiving half angle of a traditional condenser are relieved, and a group of generalized main reflector molded lines enabling edge light rays deviating from the optical axis at the maximum angle to be tangent to the top of a receiver are constructed. By means of the design, the receiving aperture and the geometric condensation ratio of the system can be remarkably improved under the limited structure height, and nondestructive recycling of light of a blind area at the bottom is achieved through the auxiliary reflector based on the macro focus principle. The invention not only solves the problem of compact integration of a high-power condensation system, but also effectively improves the energy flow distribution uniformity on the surface of the receiver, relieves the local hot spot risk, and is suitable for a high-precision tracking type solar condensation system.

The application discloses a kind of construction methods of non-diffraction PST wave packet, it is related to non-diffraction beam technical field.The method includes the following steps: constructing pseudo time dimension by spatial scale transformation;Conical surface approximation is constructed pseudo light cone in the region on equal frequency sphere using spatial scale transformation, wherein and respectively x direction transverse wave number and y direction transverse wave number of spatial spectrum;Spectrum plane intersects with pseudo light cone, and the intersection line track determines the spectrum of PST wave packet;Using complex amplitude modulation method based on spatial light modulator generates non-diffraction PST wave packet.Compared with the space-time optical pulse scheme needing pulse laser source, 4f pulse shaping system and complex field scanning device, the efficient generation of wave packet is realized by simplifying configuration.

The invention relates to a two-wheeler (100) with a lighting device (200) and to a method for operating such a two-wheeler (100). The two-wheeler (100) comprises a lighting device (200) which is arranged in a front area of ​​the two-wheeler (100) such that a light cone (220) emanating from the lighting device (200) can be directed at least into an area located in front of the two-wheeler (100). The two-wheeler (100) further comprises an adjustment device (221) which is connected to the lighting device (200) and which is configured to change the direction of the light cone (220), as well as an assistance system (222) which is connected to the adjustment device (221) in terms of control technology and which is configured to detect a current driving trajectory (301) of the two-wheeler (100) and to calculate a target trajectory (300) of the two-wheeler (100) to be driven.The characteristic feature is that the assistance system (222) provides a control signal for the adjustment device (221) in such a way that the adjustment device (221) directs the direction of the light cone (220) in the direction of the target trajectory (300) when the target trajectory (300) deviates from the actual driving trajectory (301).

This application discloses a high-performance laser detection system, a laser detection data analysis method, and an apparatus, relating to the field of laser testing. The system includes: a laser, two optical lens groups, a fiber optic cone, a photodetector, and a signal processing circuit. The laser and the two optical lens groups work together to form two laser screens. The fiber optic cone is coupled to the surface of the photodetector. The photodetector detects the laser signals passing through the two laser screens. The signal processing circuit amplifies the electrical signals using a hyperbolic tangent amplifier circuit to obtain the original laser screen signals. The method includes: sequentially filtering, fragment identification, zero-time explosion identification, and cross-screen matching of the original laser screen signals, and outputting fragment signal matching pairs and their corresponding velocities. This application improves the response speed and dynamic range of the detected light intensity of the laser detection system, while simultaneously achieving accurate identification and parameter calculation of multiple fragments, significantly enhancing the detection capability and analysis efficiency of traditional laser screens.

Headlight unit (1) for a motor vehicle (2), comprising at least the following components: - a luminaire unit (3) with a light source (19) comprising a high-resolution luminaire matrix for emitting a variable light cone (4); and - an interface (5) for communicating with an external control (6) for changing the light cone (4), characterized by the fact that the interface (5) is set up to receive only commands from a corresponding external controller (6), where a command comprises a data amount of less than 10 MBit, furthermore includes an internal storage unit (7) in which the information for the output of the light cone (4) is stored, where such information for a specific light field comprises a number of bits corresponding to the number of pixels in the light matrix.

The invention provides a high-resolution non-vision-field imaging method, and relates to the technical field of optical imaging and image processing, and the method comprises the steps: 1, constructing a non-vision-field transient image forming model which accords with the photon transmission characteristics in a real scene, according to the model, the influence of system time jitter, data acquisition equipment and background noise factors on a non-vision field transient measurement result is fully considered; step 2, optimizing a light cone transformation reconstruction algorithm by using two filtering algorithms of a maximum value and a self-adaptive non-local mean value combined with edge sharpening; and step 3, substituting the collected transient data of the non-vision field target into the non-vision field transient image constructed in the step 1 to form a model, and reconstructing the target obtained by the model by using the light cone transformation reconstruction algorithm optimized in the step 2 to obtain a high-resolution non-vision field imaging result. Compared with a traditional non-vision-field imaging system, the non-vision-field imaging system has the advantages that the signal-to-noise ratio can be effectively improved and the number of required sampling points can be reduced while high spatial resolution of non-vision-field imaging is realized.

This invention discloses an intelligent wide-area laser pest control system and method. The system includes a two-axis mechanical gimbal, a beam scanning and focusing device, a light source emitting assembly, a sensing and induction module, a main control unit, and an energy module. The method includes steps such as induction aggregation, target identification and positioning, gimbal coarse aiming, safety warning and detection, and dynamic optical network killing. This invention controls the beam scanning device through the main control unit, enabling the main laser to form a dynamic optical network within the target space, achieving wide-area coverage and instantaneous killing of groups of pests, thus improving pest control efficiency. By setting a secondary laser to form an outer first light cone as a warning and safety identification zone, and the main laser to form an inner second light cone as the core killing zone, and by continuously monitoring the presence of non-target organisms within the first light cone before the main laser is emitted, an active and reliable three-dimensional safety protection mechanism is constructed, effectively avoiding accidental damage.

The invention discloses an optical fiber light cone-CMOS coupling system photon transmission mechanism modeling method, and belongs to the technical field of physical simulation, and the method comprises the steps: constructing an optical fiber light cone-CMOS coupling system model, and carrying out the parameter initialization; wherein the optical fiber light cone-CMOS coupling system comprises a light source, an optical fiber light cone and a CMOS sensor; generating and tracking light rays by using the model, and carrying out a light ray-object intersection simulation test; and based on a light-object intersection simulation test result, calculating the transmittance of the optical fiber light cone and carrying out statistics on the spatial distribution and energy distribution conditions of photons on the surface of the CMOS sensor. According to the invention, the influence of different taper ratios and cone lengths on the optical transmission characteristics of the optical fiber cone and the photon distribution rule on the CMOS sensor can be explored, so that a theoretical basis and method support are provided for optimizing the structural design of an optical fiber cone-CMOS sensor coupling system and improving the coupling efficiency.

The invention relates to the technical field of head-up display, in particular to an HUD image generation unit protection method, a head-up display and a vehicle. The HUD image generation unit protection method comprises the following steps: acquiring a three-dimensional incident direction of ambient light in real time; comparing the three-dimensional incident direction with a preset dangerous light cone model, and judging whether the incident direction of the ambient light falls into an incident light direction set defined by the dangerous light cone model or not; and when the judgment result is yes, controlling to execute a protection operation so as to reduce the light energy reaching the image generation unit. According to the method, the risk of sunlight backflow can be pre-judged in real time, protection is actively started before the image generation unit is damaged, and transformation from post remedy to pre-prevention is achieved.

The utility model relates to a collimator system (5) used for an X-ray system (1), the collimator system (5) comprises a collimator (K), a light deflection unit (8), an illumination unit (6) and a camera (7), the illumination unit (6) is designed and arranged in a way that the illumination unit (6) emits a light cone (L) in an active state, and the camera (7) is arranged in a way that the illumination unit (6) emits the light cone (L) in a non-active state. The light cone (L) illuminates a region, which corresponds to a recording region (A) defined by the collimator (K), in a deflected manner by means of a light deflection unit (8), and wherein the camera (7) is arranged or at least positionable in such a way that it can record the recording region (A) by means of the light deflection unit (8) and the viewing direction thereof corresponds to the main emission direction of the illumination unit (6).