7results about How to "Shorten the optical path" patented technology

This invention discloses an integrated pump source and system. The integrated pump source includes: a pump source for generating pump light; multiple collimating lens groups, each corresponding to a light source module, for collimating the pump light emitted by the corresponding light source module; a beam splitter disposed in the output light path of at least one of the collimating lens group, focusing lens, and reflector, for splitting at least one of the output light to form a first-level pump light and a second-level pump light; a reflector disposed in the output light path of the collimating lens group and / or the beam splitter, for deflecting and guiding at least a portion of the output light; a focusing lens disposed in the output light path of the reflector and / or the beam splitter, for focusing the output light; a first output pigtail for receiving the focused first-level pump light and outputting it outward; and a second output pigtail for receiving the focused second-level pump light and outputting it outward.

The utility model provides a kind of for the illumination reaction device of alfacalcidol, including the liquid storage tank to be lighted, circulating pump and illumination reaction tank formed by pipeline connection circulation passway, wherein: illumination reaction tank center is provided with the LED light of cylindrical shape, and there are a plurality of upper and lower interval arrangement partition plates in periphery, and the serpentine reaction channel of upper and lower bending is formed between a plurality of partition plates.The utility model illumination reaction device can realize uniform stable illumination reaction by the design of illumination reaction tank and serpentine reaction channel, reduce the optical path of reaction liquid, improve alfacalcidol illumination reaction efficiency and product quality consistency, effectively overcome the technical defects of traditional equipment.

This invention discloses a miniature beam-splitting optical path system for atomic interferometry, comprising a main optical path and primary and secondary reflection sub-paths. Laser light is input into the main optical path after purification and polarization, and then split by a half-wave plate and a polarizing beam-splitting prism. The split beam consists of a primary reflection and a secondary reflection generated by the secondary reflection, which passes sequentially through a quarter-wave plate and a 0° mirror and re-enters the polarizing beam-splitting prism. The primary and secondary reflections then enter their respective sub-paths for further splitting. Independently adjustable right-angle prisms and polarizing beam-splitting prisms within the sub-paths eliminate the influence of the incident direction of the light entering subsequent optical paths. This miniature beam-splitting optical path system and method can output multiple laser beams with consistent polarization, adjustable power and frequency. It can be input and output via fiber optic couplers, and is suitable for atomic interferometry and other fields. It improves the efficiency of laser energy utilization and the stability of laser parameters, easily maintains symmetrical optical path distribution, and enhances system integration.

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 invention discloses a compact broadband frequency modulation optical fiber AOM optical path, which comprises an optical fiber coupler I, a 1 / 2 wave plate and a polarization splitting prism, the 1 / 2 wave plate and the polarization splitting prism are rotatably arranged in front of the optical fiber coupler I in sequence, and an AOM crystal, a rotatably arranged 1 / 4 wave plate, a separation blade and a spherical reflector are sequentially arranged on an optical path separated by the polarization splitting prism. The sphere center of the reflecting surface of the spherical reflector is located in the center of the AOM crystal, and a second optical fiber coupler is arranged on the other light path separated by the polarization splitting prism. According to the optical fiber AOM optical path scheme provided by the invention, a broadband frequency modulation optical fiber AOM optical path is simplified, the optical path is shortened by 1 / 3, miniaturization is further realized, and the optical fiber AOM optical path is more compact, has higher implementability and meets the use requirements of a miniaturized all-optical fiber laser optical path.

The application discloses a MEMS sensor for continuous infrared spectrum detection and a preparation method thereof. The preparation method comprises the following steps: after cleaning a silicon substrate, depositing a first oxide layer and a second oxide layer on the front and back surfaces of the silicon substrate respectively, processing a metal thin film on the surface of the first oxide layer, depositing an infrared narrow-band filter film, performing patterning and etching to obtain a movable structure, etching the back surface of the first silicon substrate to make the movable structure suspended; cleaning and double-side oxidizing a second silicon substrate, preparing a first electrode layer, a pyroelectric film, a second electrode layer and a metal black infrared absorption layer on the surface of the first silicon oxide film, performing patterning and etching to obtain a second silicon substrate with a back cavity structure, and bonding the MEMS scanning mirror and the pyroelectric infrared detector. The movable structure prepared by the above preparation method is combined with the bonding of the pyroelectric infrared detector, the angle of the movable structure in the MEMS scanning mirror is modulated to realize continuous spectrum scanning in a certain waveband range, and the sensor structure is simplified.

The utility model relates to the technical field of SSR optocouplers, in particular to a support structure of a vertical SSR optocoupler. Through the symmetrical design of the PT support and the IR support and the opposite distribution of the PT base island and the IR base island, the direct light path alignment of the light emitting diode and the bidirectional photosensitive silicon controlled rectifier is realized, the light transmission efficiency is obviously improved, the L-shaped output pin extends to the end part of the adjacent pin, and the PT base island is arranged, so that the bidirectional silicon controlled rectifier and the photosensitive silicon controlled rectifier are respectively arranged on different base islands, and the light transmission efficiency is improved. The risk that insulating glue overflows to the photosensitive silicon controlled rectifier chip is avoided, the short circuit probability is reduced, meanwhile, the discrete base island layout optimizes a conductive path, the number of conductive wires is reduced to the minimum, the gold wire material cost and quality hidden dangers such as wire collapse and wire breakage in the wire welding process are reduced, and the production yield and the product reliability are improved; the technical problems that after an existing SSR optocoupler support structure is packaged into an SSR optocoupler, the light transmission efficiency is low, glue is prone to overflowing to form a short circuit, and the number of electric leads is large are solved.