105results about How to "Shorten the optical path" patented technology

The invention discloses a flat optical biological reactor, which consists of transparent flat box and gas-supplying device, wherein multiple hollow diversion baffle cavities are set in the box, which contain one or more artificial light source; the cavity is set on the vertical plane in the reactor with gap among each diversion baffle cavity.

The invention discloses an ultra-short-focus projection lens, and belongs to the technical field of projection. The ultra-short-focus projection lens comprises a refractor group and a reflector group. After an image beam passes through the refractor group, the first imaging is carried out between the refractor group and the reflector group, and is reflected by the reflector group to a projection screen to form second imaging. The refractor group comprises a first lens group and a second lens group, wherein the first and second lens groups are respectively provided with two aspherical lenses. The reflector group comprises a first reflector which is disposed behind the second lens group. The refractor group and the reflector group are located on the same primary optical axis. The offset of an image formed by the second imaging relative to the primary optical axis is 140%-150%. The projection lens provided by the invention can achieve the projection of a short-focus large-size image, has a better capability of aberration correction, and can improve the projection imaging quality.

A multi-channel fiber bragg grating absolute wavelength demodulation system based on a single detector comprises a broadband light source, a circulator, reference fiber bragg gratings, a 1*N optical switch, N-path sensing fiber bragg grating arrays, a tunable filter, a photoelectric detector and a data acquisition card. The invention simultaneously provides a demodulation method based on the system. The method is characterized in that the broadband light source generates light; the light passes through the circulator, then passes through the two reference fiber Bragg gratings and then is divided into transmission light and reflected light; the transmission light enters into the 1*N optical switch; a gating signal generated by the data acquisition card makes the light enter into a corresponding sensing fiber bragg grating channel; the reflected light enters into the tunable filter via the circulator; reflected light of a sensing fiber bragg grating also enters into the tunable filter via the circulator; frequency sweeping light is received by the photoelectric detector; a spectrum signal is converted into a time domain signal; then demodulation is performed so that a relative position of the reference fiber bragg gratings and the sensing fiber bragg grating is acquired. By using the system and the method of the invention, the system structure can be simplified and a wavelength measurement error caused by optical fiber transmission is eliminated.

The invention relates to a device floating on water and used for culture engineering facilities and a construction method thereof. The device comprises unit module type support structures which are repeatedly arrayed and connected with each other. The support structures assist a floating load and support a formed culture container, at least part of the support structures are composed of pipes containing gas. The culture container comprises a floating bottom support structure so as to assist in sizing the floating load. The device is applicable to culture devices for culturing unicellular algae and macroscopic algae on open water surface (e.g. sea surface), and aquatic organisms such as conch, abalone, sea cucumbers, sea urchin, crab, fish and shrimp on a large scale. The device is characterized by low cost, firm structure, resistance against wind and waves, being convenient for mounting, cleaning and removal operations of a large-area culture container and the like.

The invention relates to a light emitting diode induction fluorescence detector. According to the detector, a light emitting diode is adopted as an exciting light source, exciting light is filtered by an exciting light filter, and light beams are limited by small holes. After the light beams are limited, the exciting light is transferred to a capillary tube flow cell. A receiving optical fiber receives fluorescent light, and the fluorescent light is transferred to a photovoltaic conversion device to be detected after passing through an emission light filter. The light emitting diode, the light filters, the small holes and outer walls of an outer protective coating (such as polyimide) of the capillary tube flow cell are closely attached, and no condensing lens or exciting optical fibers are needed. The detector is compact in structure, convenient to use and low in cost. The fluorescent light can be received with high efficiency, the signal to noise ratio is improved and sensitivity of detection can be improved by optimizing the size of a divergence angle and the sizes of the small holes. The detector can be used for directly detecting fluorescent substances in a capillary tube running system, and can be used for detecting non-fluorescent substances when combined with a fluorescence indicator.

The invention discloses a perform-optimized cadmium telluride thin-film battery and a manufacturing method for the cadmium telluride thin-film battery, wherein the cadmium telluride thin-film battery comprises a substrate and an epitaxy lamination layer; the epitaxy layer lamination sequentially consists of a conducting layer, a window layer, a light-absorbing layer, a back barrier layer and a back electrode from the bottom up; the window layer is of a textured cadmium sulfide thin-film layer; the light-absorbing layer is of a cadmium telluride thin-film layer, the back barrier layer is of a zinc telluride / copper-doped zinc telluride composite layer or a mercury telluride / copper-doped mercury telluride composite thin-film layer, and the back electrode is of one or more of graphite slurry or graphene slurry thin-film layer or copper thin-film layer, nickel thin-film layer, copper-nickel alloy thin-film layer and molybdenum thin-film layer. According to the cadmium telluride thin-film battery provided by the invention, the window area is textured and an optical path of a light-transmitting area is reduced, and thus a light-absorbing capacity is further improved and the better light-trapping effect is realized.

The invention relates to the laser field, in particular to a high-power semiconductor laser optical output module capable of being reused. The invention comprises a laser beam reshaping system, a focusing system, an upper ladder base and a lower ladder base. The upper ladder base and the lower ladder base are buttoned together through a respective upper end plane. The laser beam reshaping system is arranged on the steps of the upper ladder base and the lower ladder base. The focusing system is located in the emergent light direction outside the upper ladder base and the lower ladder base. The steps on the lower ladder base are staggered. The contact faces of the steps at different sides in the middle of the lower ladder base present a V shape. The whole step contact face presents V-shaped waves. The structures of the upper ladder base and the lower ladder base are the same. The invention can be reused, has no water cooling and small size and can realize high-power high-light output.

The invention relates to a four-right-angle-mirror optical path increasing system comprises a first right-angle mirror (1), a second right-angle mirror (2), a third right-angle mirror (3), and a fourth right-angle mirror (4). The first right-angle mirror (1) and the second right-angle mirror (2) constitute an inner right-angle mirror group. The third right-angle mirror (3) and the fourth right-angle mirror (4) constitute an outer right-angle mirror group. The four-right-angle-mirror optical path increasing system can reflect a light beam in a limited space for hundreds of times, greatly increases the contact optical path between the light beam and an affected object, improves the use efficiency of a device, reduces the space required by the device, promotes the miniaturization developmentof the optical device and improvement in the precision of a detection device.

The invention discloses a time-domain-pump-probe optical delay scanning device and a time-domain-pump-probe optical delay scanning method. The optical delay scanning device comprises a linear translation platform, and a pump light reflector set and a probe light reflector set which are arranged on the linear translation platform in a back-to-back way, wherein both arrangement directions of the pump light reflector set and the probe light reflector set guarantee that the incidence direction or the emergence direction of the light is consistent with the movement direction of the linear translation platform. When time-domain-pump-probe is performed, optical delay scanning is simultaneously performed on a pump light beam and a probe light beam, the problem of limitation of an optical delay scanning range in the time-domain-pump-probe to the movement range of the linear translation platform is solved, the requirement on travel of the linear translation platform is greatly reduced, or the optical delay scanning range is greatly expanded under the condition that the travel of the linear translation platform is not changed.

The invention provides an optical path adjusting device and method. The optical path adjusting device adjusts the relative position of a first prism and a second prism in a self-reference interferometer so as to accurately adjust an optical path, and prevents a self-reference interference aligning system using the self-reference interferometer from generating zero-order light leakage due to a combined error of the first prism and the second prism so as to further increase the contrast of an aligning signal.

The invention discloses an intelligent identification device of yellow rice wine age based on near-infrared spectra, which is characterized by the following: placing the photoelectric sensor and detecting platform with detecting clamp in the incubator; setting the light source and filter piece of near-infrared luminescent diode on the left side of detecting clamp at the neck position; placing the optical lens at the right side of detecting clamp; opposing the exit face of optical lens to the receiving face of optical fiber; connecting the exit end of optical fiber with the input end of photoelectric senor; setting the exit face of filter piece to oppose the receiving face of optical lens at the same axle through the detecting clamp; loading the temperature sensor and workpiece detector on the side of detecting clamp from the bottom of optical lens sequently. The invention solves the problem of inaccurate wine age identification result when the light splitter rotates in different temperature conditions.

The invention discloses a multi-channel high-density wavelength division multiplexing high-speed optical device. The optical device comprises a laser module, an optical path conversion module, a wavelength division multiplexing module, an optical fiber coupling module and an optical fiber which are sequentially arranged along the optical axis direction. The optical device is characterized in thatthe wavelength division multiplexing module comprises a first Z-Block module with four channels and a second Z-Block module with four channels; eight paths of divergent light emitted by the laser module are converted into eight paths of parallel light through the light path conversion module; and eight paths of parallel light are divided into two groups according to four paths as a group, one group of coupled light passes through a first Z-Block module and then is combined into one path, the other group of coupled light passes through a second Z-Block module and then is combined into a secondpath, and two paths of light from the first Z-Block module and the second Z-Block module pass through a wave combining module and then are combined into one path. The multi-channel high-density wavelength division multiplexing high-speed optical device can greatly shorten the optical path.

The present invention provides a compact three-dimensional wavelength division multiplexing / demultiplexing device and an implementation method thereof. The compact three-dimensional wavelength division multiplexing / demultiplexing device comprises a microring resonator, a micro-strip metal coil, and two bar-type strap straight waveguides arranged at two sides of a nonreciprocal microring resonator,coupled with the microring resonator and configured to perform optical signal input / output; the two ends of the two bar-type strap straight waveguides are respectively provided with first, second, third and fourth optical signal output / input ports, and uniform waveguide Bragg reflection gratings are etched at the second port; the microring resonator comprises a microring bending waveguide and a magnetic rotary medium arranged at the inner wall of the microring bending waveguide, and an external static magnetic field required by work of the magnetic rotary medium around the current passing through in the metal coil is generated. The current direction in the metal micro-strip metal coil is changed to achieve the switching of the system between the three-dimensional wavelength division multiplexing device and the demultiplexing device. The compact three-dimensional wavelength division multiplexing / demultiplexing device and the implementation method thereof are simple in structure, high in isolation, low in power loss, little crosstalk, compact and convenient to integrate, can achieve large-scale optical waveguide integration, can perform batch production to reduce the cost and is easy to promote and apply.

The invention relates to the technical field of biomedicines and in particular relates to a full-automatic medical fluorescence PCR (Polymerase Chain Reaction) analysis system based on a POCT (Point-of-care Testing) mode. The system comprises a PCR instrument and a client, wherein the PCR instrument is used for amplifying DNA through a PCR reaction; the PCR instrument is further used for performing fluorescence detection on the DNA, generating fluorescence images and transmitting the images to the client; and the client is used for analyzing the fluorescence images and generating analysis results. According to the full-automatic medical fluorescence PCR analysis system based on the POCT mode provided by the invention, the defects that the traditional gene detection process is complicated, the cost is high and the waiting cycle is long can be overcome.

The invention discloses a flat optical biological reactor, which consists of transparent flat box and gas-supplying device, wherein multiple hollow diversion baffle cavities are set in the box, whichcontain one or more artificial light source; the cavity is set on the vertical plane in the reactor with gap among each diversion baffle cavity.

The invention discloses an optical fiber dynamic light scattering detection device for high-concentration particle swarms, and belongs to the field of photoelectric detection. The optical fiber dynamic light scattering detection device comprises a laser device, an optical fiber coupler, a transmitting optical fiber, a receiving optical fiber, a micro-fluidic chip, a photoelectric detector and a digital correlator. The micro-fluidic chip is provided with a micro-channel, the micro-channel is used as a sample pool, the laser device is used for transmitting coherent light, the transmitting optical fiber is connected with a laser source by the optical fiber coupler, the coherent light can be coupled by the optical coupler to be transmitted into the sample pool via the transmitting optical fiber, can be transmitted through the high-concentration particle swarms, with the to-be-measured particle sizes, in the sample pool and then is scattered, scattered light can be transmitted through the receiving optical fiber and can be transmitted into the photoelectric detector via the optical fiber coupler, and the digital correlator is connected with the photoelectric detector and is used for acquiring light intensity autocorrelation functions according to photoelectrons obtained by the photoelectric detector. The optical fiber dynamic light scattering detection device has the advantages thatthe particle sizes of the high-concentration particle swarms can be measured by the optical fiber dynamic light scattering detection device in an in-situ manner, the optical fiber dynamic light scattering detection device is small, is low in sample consumption and can be applied to measuring the particle sizes of the high-concentration particle swarms, and light-resistant designs and temperaturecontrol can be facilitated.

The present invention relates to an optical path variable plate-type microalgae culture reactor, which comprises a ventilation device and an optical path adjustable photo biological reaction system during a culture process, wherein the ventilation device comprises a flow meter, a ventilation pipe and an aeration device, and the introduced gas is air containing a certain concentration of carbon dioxide (0.04-10% by mass). According to the present invention, the culture device is the simple flat plate-type photobioreactor with the lined transparent plastic bag, and during the culture process, along with the increase of the microalgae cell concentration, the distance between the baffles of the plate-type reactor is changed so as to continuously change the optical path, such that the requirement of the algae cell growth on the optical energy can be met, and the reactor is especially for the culture using sunlight as the optical source.

Multiple optical fibres are divided into n individual optical channels. After passing through collimator, an optical cross distributor with ring shape is formed. Said n individual optical channels are sequentially arranged at external side of disk on rotary axle. The single-mode optical fibres are arranged on said disk and addressed by high-speed deflection driven by coaxial small-inertia deflecting axle. After it is aligned with collimator, a space-division cross connector is formed. Said optical coupling switch is formed by the small gaps between coaxial rings. Said encode switch is a partition encoded full-reflection medium membrane driven by a coaxial rotor of optical scanner.

The invention discloses a laser light source, which comprises a laser source, a first concentration module, a first diffusion sheet, a first focusing module, a fluorescent powder wheel, a second focusing module, a light stick, a diffusion unit and a light splitting switch element, wherein in a state I, the light splitting switch element reflects laser, used for stimulating fluorescent powder, fromthe first diffusion sheet to the second focusing module; in a state II, the light splitting switch element reflects the laser from the first diffusion sheet to the second focusing module. The invention further discloses a laser light source control method, which comprises the following steps: Step I, adjusting the light splitting switch element to the state I; Step II, outputting light emitted bythe fluorescent powder wheel, or outputting light which is emitted by the fluorescent powder wheel and filtered by a region corresponding to a filter wheel, or outputting light which passes through asecond diffusion sheet; Step III, adjusting the light splitting switch element to the state II; Step IV, outputting the light emitted by the laser source. The laser light source is simple in structure, small in size and high in optical efficiency and can be compatible with various light source schemes.

The present invention discloses an illumination system for improving the collimation efficiency based on a Fresnel lens. The illumination system comprises light sources with different wavelengths, each light source is provided with a convergent lens, and the light rays emitted by a first light source, a fifth light source and a third light source pass through the convergent lenses and first dichroscopes respectively, and then the light rays at different angles are collimated through the Fresnel collimating lens; the collimated light rays pass through a second dichroscope , the light rays emitted by the fourth light source pass through the convergent lens and then pass through the second dichroscope, the second dichroscope enables the two kinds of light rays to form a light beam and converges the light beam into a dodging system, and the light beam sequentially passes through the dodging system, a light valve system and a projection system and is finally projected on a screen.

The invention discloses a profiled high-screen-occupation-ratio backlight module and a control method thereof. The backlight module comprises a light guide plate and a light source arranged on the light incidence side of the light guide plate. The light guide plate comprises a first light-exiting surface located on the upper part of the light guide plate, and two second light-exiting surfaces located at the lower part of the light guide plate. A space for setting a virtual key is arranged between the two second light-exiting surfaces. According to the technical scheme of the invention, two second light-exiting surfaces are additionally arranged at the bottom of the module, so that the screen occupation ratio is increased. The first light-exiting surface is arranged above the two second light-exiting surfaces. In this way, the optical path is shortened and the frame area is reduced. Therefore, the area of the first light-exiting surface is increased, so that the screen occupation ratio is further increased. In general, the screen occupation ratio is increased by more than 10%, so tputat the visual experience of consumers is more optimized. The on and off states of the first light-exiting surface and the second light-exiting surfaces can be respectively controlled. When only the second light-exiting surfaces are put to use, only a portion of LED lamps are running. Therefore, the power consumption is reduced and the electric quantity is saved.

The invention provides a color film substrate and a display device. The color film substrate comprises an underlayer substrate, a color film layer, a plurality of texture recognition units; the colorfilm layer is arranged on one side of the underlayer substrate and comprises a black matrix and a plurality of color filters; the plurality of texture recognition units are arranged on the underlayersubstrate, each texture recognition unit comprises a thin film transistor and an optical sensor, and the orthographic projections of the texture recognition units on the substrate are located in the orthographic projection of the black matrix on the substrate. The texture recognition units are designed on the color film substrate, so that the optical path between an optical sensor and the surfaceof a finger can be effectively shortened, an acquired optical signal is enhanced, and meanwhile, the noise of the optical signal transmitted between LCD layers is greatly reduced; and meanwhile, LCD light transmittance is not influenced.

The invention relates to a device for water-surface aquaculture engineering, which is applied to the large-scale culture of algae, mussels, abalones, sea cucumbers, crabs, fish and shrimps on open water surface such as sea surface. The device comprises a net-shaped base support formed by ropes with floaters in spaced regular arrangement, a support formed by pipes, a pile-cable unit, and a culture vessel supported by the supporting units and fixed by the pile-cable unit. The net-shaped base support with floaters is fully or partially separated from the culture vessel and other floater supports, thereby forming a 'floating-pipe movable base' culture device. The pipe-based support has multiple units in geometric shape. The multiple units of the pipe-based support are in detachable arrangement and connected to one another, and serve as gas passages to form a part of a gas distributor. The device is applied to the large-scale culture of aquatic animals on open water surface and has the advantages of low cost, firm structure, resistance to wind and waves, and convenience for installation and removal of large-area culture vessels.

The invention discloses an optical path shortening optical system and lens imaging quality detecting system, which is characterized by the following: shortening optical path between object and imaging lens through adding one equivalent lens; satisfying different positions of imaging lens; mating the same size object to adjust gap of equivalent lens and imaging lens.

The invention discloses a backlight module and a display device, wherein a microprism film layer is further arranged on the light emitting side of a light guide plate, and the microprism film layer islocated within the range that the light guide plate extends by a preset distance from the side close to a light source to the side away from the light source; the microprism film layer comprises a plurality of first microprism structures used for enabling an incident angle of light entering the first microprism structure at the first interface to be greater than an emergent angle of the light exiting from the first microprism structure at the first interface when the light in the light guide plate enters the light guide plate from the first microprism structure after entering the first microprism structure from the light guide plate. Compared with the condition that the microprism film layer is not arranged, the reflection angle of the light rays on the first interface is reduced equivalently, so that the emergent light path of the light rays is shortened, the light ray delay is reduced, and the phenomenon that the side, close to the light source, of the backlight module is dark is effectively improved on the basis that the backlight brightness visual angle and the emergent light angle are not changed.

The invention discloses a luminescent mark device with a reflecting edge, and is similar to a neon lamp, and the luminescent mark device is directly enclosed with a LED chip. The invention comprises a light guide bar with the shape of the front surface being required character or line shape, lighting grooves made of light tight material and arranged on both sides at the lower part of the light guide bar, and LED lighting chip circuit boards which are also arranged at the lower part of the lighting grooves. The invention is characterized in that the inner side of at least one surface in the three surfaces enclosed by the lighting grooves and the circuit boards is provided with the reflecting edge. Concretely, transverse reflecting edge structures can be added but not be limited at the bottom parts of the lighting grooves, thus the light rays of the LED chip are reflectively reflected to the light guide bar along the circuit board, the light path of the light rays are shortened, the light absorbing of the enclosing material is reduced, and the lighting effect and the lightening uniformity of the device are improved; vertical reflecting edge curved surface structures can also be added but not be limited in the inner surfaces of the lighting grooves, and according to the mathematics ellipse focal point reflection principle, all the lights transmitted to the curved surface by the LED chip are reflected to a specific dark space of the light guide bar, so as to improve the brightness of the dark space.

The invention discloses an augmented reality module for a microscope, and belongs to the field of biomedical instrument design. The augmented reality module comprises a camera, a first imaging lens, abeam splitter, a second imaging lens, a display screen, an image processing unit and an asynchronous modulation unit. A sample image is divided into two paths by the beam splitter, and one path is directly coupled into a microscope visual light path; the other path is converted into an electric signal through a camera after passing through a first imaging lens, the electric signal is input into an image processing unit, the image processing unit analyzes and recognizes the electric signal and then images the image on a display screen, and the display screen image is divided into two paths bythe same beam splitter after passing through a second imaging lens; and one path is prevented from imaging on a camera target surface through a display screen and an asynchronous modulation unit, andthe other path is coupled into a microscope visual light path. According to the augmented reality module provided by the invention, a traditional existing microscope can be directly modified into an intelligent microscope capable of being used for auxiliary diagnosis, and a computer-aided diagnosis system can be accessed under the condition of not changing the use habits of doctors.

The invention discloses a camera module. The camera module comprises a bracket (100); a lens (200), wherein the lens (200) is arranged on the bracket (100); a substrate (300), wherein the substrate (300) is connected with the bracket (100); and a photosensitive chip module (400), wherein the photosensitive chip module (400) is arranged on the substrate (300), the photosensitive chip module (400) is electrically connected with the substrate (300), the photosensitive chip module (400) and the lens (200) are oppositely arranged, the photosensitive chip module (400) is provided with a light receiving surface (410) facing the lens (200), the light receiving surface (410) is a concave surface, and the light receiving surface (410) is formed by splicing a plurality of bulges (411) distributed inan array. The invention further discloses electronic equipment. According to the scheme, the problem of poor imaging quality of the camera module of the existing electronic equipment can be solved.

The invention discloses a cover plate, a manufacturing method thereof and a display panel. The cover plate comprises a first substrate, a light condensation structure and a flat layer, wherein the light condensation structure is arranged on the first substrate, and the flat layer covers the light condensation structure and the substrate; and the light condensation structure is made of first photoresist, the flat layer is made of second photoresist, a refractive index of the second photoresist is smaller than that of the first photoresist, and the flat layer covers the light condensation structure and the substrate. According to the cover plate, the manufacturing method thereof and the display panel, the sensitivity and the precision of a photosensitive device can be improved.