84 results about "Rectilinear propagation" patented technology

A plurality of lighting device units 30, the light sources of which are light emitting elements 34, are tiltably supported by a common unit support member 20, so that optical axes of the plurality of lighting device units 30 are simultaneously adjusted. The projection lens 32 and the rectilinear propagation blocking member 38, which compose each lighting device unit 30, are integrated with each other as a light control member 40, and this light control member 40 and the light emitting element 34 are individually attached to the unit support member 20. Due to the foregoing, the lighting device structure can be made simple compared with the structure in which the completed lighting device unit is attached to the unit support member 20.

To reduce light passing through the gap between lenses. A plurality of lens sections L are provided on a substrate P with a gap therebetween by ejecting droplets. A control material is applied to the gap between the lens sections, the control material controlling rectilinear propagation of the light.

A movable type laser reflection, laser refraction and lens imaging demonstration combined device comprises a movable type semiconductor laser transmitter, an optical module, a teaching aid and a magnetic demonstrating board, wherein the optical module and the teaching aid are matched with optical experiments in use. The movable type semiconductor laser transmitter comprises a semiconductor laser transmitter I capable of emitting a beam of light or/and a semiconductor laser transmitter II capable of emitting two beams of light. The bottom of the semiconductor laser transmitter I, magnetic bases are installed at the bottom of the semiconductor laser transmitter II and the bottoms of the optical module and the teaching aid matched with the optical experiments in use. The magnetic demonstrating board is a flat board capable of sucking the magnetic bases. When the device is used, the movable type semiconductor laser transmitter and the optical module and the teaching aid matched with the optical experiments in use are sucked on the magnetic demonstrating board through the magnetic bases and can be moved optionally. The device can perform more than 50 optical experiments including light rectilinear propagation, light reflection, light refraction, lens imaging law, light interference, light diffraction and the like.

The invention discloses a device and a method for detecting the liquid level of an infusion drip chamber. The device comprises a fixed shell and a detection circuit unit arranged in the fixed shell, the fixed shell is sleeved on the infusion drip chamber, the detection circuit unit comprises an infrared transmitting tube and an infrared receiving tube, the infusion drip chamber is positioned between the infrared transmitting tube and the infrared receiving tube, an infrared probe irradiates the liquid level by the aid of the principle of rectilinear propagation and refraction of light, pulse signals are transmitted and received by a corresponding receiving device, analog signals received by a pulse receiving end are sampled, and the liquid level is detected according to the received analog signals, so that the method for detecting the liquid level is high in anti-jamming capability and low in power consumption. By the aid of an error comparing and average filtering algorithm, sampling accuracy is improved, and liquid level fluctuation caused by man-made or other factors can be effectively filtered, so that the method for detecting the liquid level is high in accuracy rate and can remove liquid level fluctuation and the like.

The invention provides a capsule preparing machine with a detection function. The capsule preparing machine with the detection function comprises an input-output device used for receiving an operating instruction issued by a user; a work actuating mechanism used for actuating a preparing operation; a detection device used for detecting whether a capsule storehouse is provided with the capsule and feeding back a detection result to a control device; the control device used for receiving the operating instruction issued by the user through the input-output device, and correspondingly controlling the work of the work actuating mechanism and the detection device; the detection device comprises a detection source and an induction component; the detection source is used for emitting a detection wave in rectilinear propagation to the place where the capsule is located when detecting the capsule; the induction component is used for detecting whether the detection wave is received. The invention also provides the capsule used for the capsule preparing machine and a control method of the capsule preparing machine.

The present invention discloses an electronic shelf label system communication method. The method comprises: S1: a server sends data information to at least one wireless reader, wherein the data information comprises electronic label information; S2: each wireless reader transmits the electronic label information to electronic shelf labels; S3: each electronic shelf label returns confirmation signals of receiving the electronic label information back to the corresponding wireless reader; and S4: the at least one wireless reader sends the confirmation signals returned by the electronic shelf labels to the server, wherein the step S1 and/or the step S2 and/or the step S3 and/or the step 4 employ Sub-GHz communication frequency ranges for communication. The problem is solved that signal rectilinear propagation and communication performances are not good in an infrared communication method; the employed Sub-GHz communication frequency ranges have lower power consumption than 2.4G communication frequency ranges; and the electronic shelf label system communication method has higher communication speed advantage than a low-frequency wireless radio wave method. The electronic shelf label system communication method can an electronic shelf label system with low power consumption and high-speed communication.

The invention relates to a self-focusing laser processing device. A container for containing a non-linear medium is fixed between a lens and a workbench by the aid of a clamping mechanism. A laser beam is focused on the surface of the non-linear medium, the laser beam focused by the lens enters the non-linear medium to be transferred to produce self-focusing, and through two times of focusing by the lens and the non-linear medium, the laser beam leaving the container has the extremely small diameter and is linearly spread to the surface of a workpiece. The depth of the non-linear medium in the container, that is, the self-focusing distance L is related to energy of the laser beam and the refractive index of the adopted non-linear medium. A water jet auxiliary device is also provided, and the laser focus point on the surface of the workpiece coincides with the jet injection point center. Impact of water jet on the surface of the workpiece carries away residues and heat removed by laser. Lens focusing and self-focusing are combined, almost half of the diameter of the laser beam is reduced, and the energy density of the laser beam is increased. Laser alignment transfer is realized after self-focusing, the divergence angle is small, longitudinal etching is facilitated, the processing depth is increased, and the etching accuracy and efficiency are guaranteed.

The invention discloses a double-shaft high-precision solar tracking motor controller, which includes a power interface, a singlechip and a circuit board, wherein photosensitive sensors and four relays are arranged on the circuit board; the photosensitive sensors are positioned on the peripheries of the relays; the relays are positioned above the circuit board; the photosensitive sensors are positioned under the circuit board; light transmitting holes are formed in the circuit board; the photosurfaces of the photosensitive sensors face upwards; the photosensitive sensors receive sunlight through the light transmitting holes; the power interface is connected with the singlechip through the power switching circuit; the singlechip receives signals of the photosensitive sensors and sends control signals to the corresponding relays; and the relays receive the control signals and then enable the motor to stop rotating or rotate leftwards, rightwards, downwards and upwards. The double-shaft high-precision solar tracking motor controller is used for measuring the solar azimuth based on the solar ray rectilinear propagation and photoeffect principles, automatically tracks the sun, and can be operated manually in a remote manner, achieves the auto-tracking accuracy within 3 degrees, and guarantees the solar thermal utilization of the maximum efficiency.

Provided is a miniaturized linear femtosecond laser pulse shape and width measurement device, which comprises a four-hole diaphragm plate, an attenuation time-delay sheet, a first convex lens, a third-order non-linear medium, a second convex lens, an optical fiber coupler, a single-mode fiber and a spectrometer, which are arranged in sequence in the beam incident direction of a pulse to be measured. Interference fringes are subjected to analysis and processing through a Fourier transform spectral interference method to reconstruct spectral and phase information of the light to be measured, thereby restoring shape and phase of the pulse to be measured and realizing measurement of shape and width of the femtosecond pulse. The device is based on the characteristic of rectilinear propagation of the light, and has the advantages of being compact in structure, firm and easy to adjust.

The present invention provides a light path display combination, especially a device of showing light path. The device belongs to the teaching laboratory equipment, characterized in that it is composed of a display board and a demonstration frame, when beam passes the display board composed by reflecting powder and transparent solid, the light path is shown, directly showing the straight propagation, reflection and refraction discipline of light, it is convenient for laboratory observation.

The invention belongs to the field of a mass spectrometry technology, and particularly relates to an ion deflection transmission system used in a mass spectrum instrument. The system comprises an ion focusing lens group and an ion deflection lens group. The ion focusing lens group is used for enabling ions passing through the ion focusing lens group to be focused in space and enter in the ion deflection lens group. Certain direct current voltage is applied on all electrodes of the ion deflection lens group to form a specific electric field, so that the ions can deflect by about 90 degrees. Uncharged photons and neutral molecules are not affected by electric field force, thus continuing rectilinear propagation. The ion deflection transmission system can achieve effects of eliminating the interference of photons and neutral molecules in mass spectrum analysis and improving the signal-to-noise ratio of the instrument.

The invention discloses a spatial positioning system and method, positioning equipment and an optical sensor module. The spatial positioning system comprises the positioning equipment, N optical sensor modules and a master controller. The positioning equipment is provided with an optical scanning device. The N optical sensor modules are arranged in a space with positioning to be performed, and each optical sensor module comprises M optical triggers. The optical scanning device is used for generating scanning rays in a first direction and scanning rays in a second direction, wherein the first direction and the second direction intersect. The optical triggers are used for generating electrical signals under the action of the scanning rays. The master controller is used for determining the position of the positioning equipment in the space with positioning to be performed according to the electrical signals generated by at least three non-collinear optical triggers. According to the scheme, the characteristic that light is propagated in straight lines and the photo-electrical effect are utilized, the precision of spatial positioning is improved to the centimeter level from the meter level, and the higher and higher requirement of people for the spatial positioning precision is met.

The invention discloses an X-ray photon counting imaging system based on spherical collimating. The system comprises an X-ray single-photon counter, a photon counting information reading module, an information processing unit, a spherical X-ray collimator and a numerical control random shutter array, wherein the X-ray single-photon counter is used for detecting X-ray photons and outputting detected light pulse signals to the photon counting information reading module, the photon counting information reading module is used for recording the counting value of X-ray photons and outputting the counting value to the information processing unit, the information processing unit generates a random observation matrix and controlling the opening and the closing of the numerical control random shutter array, the output end of the information processing unit is connected with the numerical control random shutter array, the spherical X-ray collimator is used for collecting X-rays from space in different directions, the output end of the spherical X-ray collimator is connected with the numerical control random shutter array, the numerical control random shutter array is used for controlling the opening and closing of each channel of the spherical X-ray collimator, and when a shutter is opened, the X-rays in the channel corresponding to the shutter are linearly transmitted to the X-ray single-photon counter. The problems that in the prior art, an X-ray imaging system is small in view field and large in manufacturing process difficulty are solved.

The invention discloses a method for extracting the road center line by means of a Visual Graph algorithm. In the actual application of path planning, in order to reduce impact on obstacles as much as possible, usually a robot is required to walk on the road center line in order to improve the walking safety of the robot. The Visual Graph algorithm is a very classic path planning algorithm provided in 1979, and the characteristic that light is linearly propagated is simulated. According to the invention, the execution idea, of the algorithm, that light is linearly propagated is employed to achieve extraction of the road center line, the coordinate points of the road center line and the connection relation of the coordinate points can be finally outputted, and the road center line is drawn in the map in order to supply a safe and appropriate walking path to the robot.

The invention discloses a virtual multi-point video generation method. The method comprises the following steps: step S1, acquiring a single-frame image; step S2, obtaining a left point view and a right point view; step S2, preprocessing, step S4, acquiring a search dense point initial parallax; step S5, searching a matching point, and computing the parallax of each pair of matching points; step S6, performing linear interpolation to matching point parallax with high resolution; step S7, obtaining a virtual multi-point image; and step S8, compressing the virtual multi-point image as a video format, sending to a video memory to display. By using the generation method disclosed by the invention, the dense parallax data needs to acquire, so that a mean value is used for replacing the single-point data to improve the accuracy of the parallax searching, and the algorithm stability is improved; the virtual other point parallaxes are computed according to a light rectilinear propagation principle of the geometrical optical, and then the virtual multi-point image is generated through the virtual parallax. By using the existing two-point 3D video, the images of other points can be obtained through a digital computing way, thereby realizing the multi-point video manufacturing with low cost.

According to the positioning method for inhibiting the mine non-line-of-sight error, personnel, vehicles and the like in a mine can prevent positioning signals from being propagated linearly between apositioning card and substations, non-line-of-sight transmission NLOS such as reflection, diffraction and scattering can be caused, and then the positioning error is caused. According to the characteristics of distance measurement change caused by non-line-of-sight signal intensity attenuation and distance measurement change caused by non-line-of-sight signal time delay; the positioning method for inhibiting the mine non-line-of-sight errors through the multiple parameters of the signal arrival time and the signal strength is invented, signal arrival time and signal strength ranging communication and data processing are carried out at the same time, and accurate positioning is achieved. The method is simple in implementation process, high in positioning speed, high in real-time performance and high in popularization value.

The invention provides a method for solving an imaging area of a DVD (digital versatile disc) display screen on front windshield glass. A rectangular area of images of the DVD display screen on the front windshield glass is estimated according to light rectilinear propagation and reflection laws, and matrix point sets are distributed in the area according to precision requirements. The method includes: fining feature points on the DVD display screen, taking four vertexes of the DVD display screen as the feature points, finding boundary points of feature point images entering eye ellipses through trials to find the imaging area of each feature point on the front windshield glass, and drawing a similar imaging area on the front windshield glass according to outline features of the DVD display screen. The method for solving the imaging area of the DVD display screen on the front windshield glass which is a curved surface is provided through a checking method, DVD glaring checking efficiency is improved during integral automobile development, significant reference basis is provided for DVD arrangement, and potential safety risks in running of automobiles are eliminated.

The invention discloses a line drawing device of a wave-proof board, which comprises a positioning assembly and a rotating shaft which are fixed in a round tube. The rotating shaft penetrates through the center of the positioning assembly and rotates relative to the positioning assembly, an extending rotating arm is fixed at one end of the rotating shaft exposed out of the round tube, a rotatable laser emitting assembly is arranged at one end of the rotating arm, and laser lines emitted by the laser emitting assembly, rotating arm central lines and rotating arm central lines are on the same plane. The line-drawing device uses the laser rectilinear propagation principle, can adjust laser to be at any angles through a laser angle adjusting function, can adjust the rotating shaft to a required position through a rotating shaft central adjusting bolt and can enlarge or narrow a line drawing range through a laser position adjusting function.