47 results about "Coaxial system" patented technology

A multi-regime continuously variable ratio transmission system has coaxial system input and output shafts (16, 24), a continously variable ratio transmission unit (V) connected coaxially to the system input shaft (16) and having a coaxial variator output shaft (18) and a mixing epicyclic gear train (E1) having an input sun gear (S1) drivably connected to the variator ouput shaft (18), a planet carrier (C1) drivably connected to the system input shaft (16) and a planet gear (P1) mounted on the planet carrier ((C1). The planet gear (P1) drives a first intermediate output shaft (22) arranged coaxially with the system input shaft (16) and selectively connectable to the system output shaft via a first clutch (H) in high-regime operation of the transmission. The planet gear (P1) also provides the input for a second epicyclic gear train (E2) having an output (C2) which is selectively connectable to the system output shaft via a braking element (L) for low-regime operation of the transmission. The arrangement minimises the number of gear meshes, thereby minimising transmission losses and the absence of an annulus in the mixing epicyclic gear train (E1) allows more freedom in the choice of gear sizes, thereby permitting reduced gear speeds.

The invention relates to a near field coaxial double-visual-field Mie scattering atmosphere lidar which is characterized by comprising an optical system and a photoelectric detection system, wherein the optical system is used for launching a laser pulse bundle to the atmosphere and receiving a backward scattering echo produced by atmospheric aerosol to the launched laser pulse bundle; the photoelectric detection system is used for processing a backward scattering echo received by the optical system; and in the optical system, a laser launching system and two independent sets of optical receiving channels respectively adopt coaxial and non-coaxial sending and receiving designs, and the signal detection and collection simultaneously adopt a modulus detection and photon counting detection mode. According to the near field coaxial double-visual-field Mie scattering atmosphere lidar disclosed by the invention, the low altitude detection can adopt a large visual field angle and a coaxial system, the high altitude detection can adopt double modes of a small visual field angle and a non-coaxial system and photon counting and detection simulation, and therefore, the detection capability of a lidar system in a low altitude condition and a high altitude condition is enhanced, and the support is supplied for atmospheric boundary layer detection and stratosphere atmospheric aerosol detection.

The invention discloses a direct analysis device of solid samples, wherein a sample pool is installed on a three-dimensional moving platform, a microscopic imaging system is aligned to a solid sample in the sample pool, a laser beam emitted by a picosecond laser is focused onto the surface of the sample in the sample pool through a laser optical system, particles generated by laser ablation enter an inductively coupled plasma source mass spectrometer through an aerosol transmission system, the direct analysis device has the advantages that the laser wavelength can be selected from 1064 nm, 532 nm, 355 nm and 266 nm, the pulse width is 30 ps, the pulse frequency is 20 Hz, the pulse energy is continuously adjustable, and the maximal pulse energy of 266 nm reaches 3.0 mJ; the position of the sample pool is three-dimensional controllable, and the transmission pipeline of the aerosol transmission system switched by a tee solenoid valve is short; a non-coaxial system is adopted to quickly focus and position the sample ablation position. As shown in analysis, basically no element fractionation effect exists in the elements of low alloy steel, pure copper, pure aluminum and the like, and basically no matrix effect exists in the elements of iron base, copper base, aluminum base and the like.

The invention discloses a long focal length ultrashort tube length coaxial total reflection optical system, which belongs to the optical design field, and is used to solve problems of long focal length space cameras such as large size and complicated structure. The optical system is constituted by a first reflector, a second reflector, a third reflector, and a focal plane. The optical system is a coaxial system, and the whole system is rotatably symmetric with respect to an optical axis. Light at infinity in object space is irradiated on the first reflector, and is reflected to the second reflector by the first reflector, and thereafter is gathered on a first image plane after being reflected by the second reflector, and then is irradiated on the third reflector, and is reflected to the second reflector by the third reflector, and then is reflected by the second reflector again, and at last is gathered on the focal plane. The reflecting surface of the first reflector is a concave high order aspherical surface having second-order, fourth-order, sixth-order, eighth-order aspherical coefficients. The reflecting surface of the second reflector is a convex hyperboloid surface, and the reflecting surface of the third reflector is a concave ellipsoid surface having second-order, fourth-order, sixth-order aspherical coefficients. The long focal length ultrashort tube length coaxial total reflection optical system is widely used for the space remote sensing field.

The invention discloses a refrigerating compact unobstructed free-form optical system comprising a first reflecting mirror, a second reflecting mirror and a third reflecting mirror arranged in sequence. All three reflecting mirrors are free-form surfaces and use an XY polynomial or Zernike polynomial. Inclination or simultaneous existence of the eccentricity and inclination exists relative to thecoaxial system. The three reflecting mirrors are arranged in a circle; the light intersects multiple times in space; and the structure is compact. The incident light is not shielded by the three reflecting mirrors and can reach the final image plane completely. An intermediate image plane exists in the optical path between the second reflecting mirror and the third reflecting mirror and is adjacent to the second reflecting mirror. A system diaphragm is arranged near the first reflecting mirror. Therefore, the size of the traditional off-axis three-reflecting system is reduced; the secondary imaging technology is realized in compact space, so that the exit pupil is located behind the third reflecting mirror outside the overlapped optical path; the system can match the refrigerating detectorcooling aperture. The 100% of cold diaphragm efficiency is realized and the target acting distance is increased.

A reflection type projection optical system for projecting a pattern on an object surface onto an image surface and forming an imaging system that forms an intermediate image between the object surface and image surface includes four or more mirrors arranged substantially as a coaxial system to reflect light from an object side to an image side, reflection surfaces on the four or more mirrors forming the same direction for forming a reflection angle.

Disclosed is a projection optical system specifically to be used with extreme ultraviolet (EUV) light having a wavelength not less than 10 nm and not greater than 20 nm. The projection optical system has six mirrors sequentially reflecting light in an order from the object side toward the image side and being disposed to define a coaxial system, wherein each of the six mirrors has a curvature radius not greater than 1500 mm.

The invention discloses a system and a method for phase micro-interference imaging based on a common-optical path system. By taking full advantage of the stability of a coaxial system, a sample is put in a light beam which is expanded and collimated previously, object light and reference light share the same optical path, an angular-rotatable reflector changes the direction of a reference light beam so that the object light and the reference light beam are superposed, the angles of the reflector are changed to generate corresponding coaxial, off-axis and slight off-axis interference, and a phase interference pattern is microscopically amplified by a rear microscope and then a digital interference image can be generated on a CCD sensor. The spatial structural morphology of the phase object sample can be obtained by performing corresponding phase retrieval and deconstruction operation on the interference image. The system and the method have the advantages that noise generated in the measurement process is effectively measured in the use process, and the angles of the rotatable reflector are changed so that the included angle between the object light beam and the reference light beam is changed to adapt to the interference phase micro imaging of the phase object, including traditional coaxial interference, off-axis interference and slight off-axis interference; the system and the method are especially suitable for the fields of scientific research and clinical application of morphology detection and characteristic identification of biological cells.

The invention relates to the field of laser optical design, and provides an optical system. The optical system comprises a dichroscope, an image receiving unit and a laser emission unit. The image receiving unit is used for receiving target range object reflected light which is reflected by the dichroscope and is provided with preset wavelength, and forming and outputting image information so as to acquire position information of a target object. The laser emission unit is used for carrying out laser emission on the target object through the dichroscope according to the position information of the target object. The laser emission optical axis of the laser emission unit is coaxial with the reflected light receiving optical axis of the target range object reflected light. According to the embodiment of the invention, through the design that the laser emission optical axis of the laser emission unit is coaxial with the reflected light receiving optical axis of the target range object reflected light, the real-time striking accuracy and reliability of the optical system are improved; and meanwhile, through a design of a transceiving coaxial system, the structure of the device is quite simple, the size is small and design and manufacturing cost of a laser radar is reduced.

The invention relates to a method for detecting rubbing and/or contact points on machines with rotating parts. The rotating parts form an electrical coaxial system with respect to the stationary parts of such a machine, in which system electrical voltage pulses are propagated at a characteristic speed because of the small distance between the rotating and the stationary part. Short electrical voltage pulses and/or continuous alternating voltage signals are applied between the rotating part and the stationary part, an electrical connection occurring between the rotating and the stationary part at a rubbing and/or contact point. In order to locate this rubbing and/or contact point as a point of electrical discontinuity, the period of time until the reflected pulses arrive is measured along the path of propagation of the electrical voltage pulses and/or of the continuous alternating voltage signals.

The invention discloses a pressurized air water generator system. The pressurized air water generator system comprises a compressor, an energy saver, a primary heat exchanger, a secondary heat exchanger, a condenser, a water separator, an expander and a driver. The input end of the compressor is an air inlet end. The output end of the compressor is sequentially connected with the hot side of the energy saver, the hot side of the primary heat exchanger, the hot side of the secondary heat exchanger, the condenser and the input end of the water separator, the output end of the waster separator is sequentially connected with the cold side of the energy saver, the expander, the condenser and the cold side of the secondary heat exchanger, and then a circulation path is formed. The driver is connected with the compressor and the expander and used for driving the compressor and the expander. A coaxial system is formed by the compressor, the driver and the expander. The water making energy consumption can be greatly reduced through pressurization water generation and energy recovery.

The invention relates to a high-power resilience dual drive resilience circulating water pump unit. The high-power resilience dual drive resilience circulating water pump unit comprises a motor, a circulating water pump and a hydraulic turbine machine unit, and the motor and the hydraulic turbine machine unit are arranged at the two ends of the circulating water pump in a coaxial system mode. A pneumatic tube clutch and a gearbox are further included, the motor is connected with one end of the circulating water pump through a first diaphragm coupling, the other end of the circulating water pump is connected with an output shaft of the gearbox through the pneumatic tube clutch, and an input shaft of the gearbox is connected with an output shaft of the hydraulic turbine machine unit througha second diaphragm coupling. According to the high-power resilience dual drive resilience circulating water pump unit, own output circulating water backwater excess pressure energy of the high-power circulating water pump unit can be safely recycled, backwater excess pressure energy of a turbine drive circulating water pump unit operated parallelly can be further recycled simultaneously, resilience power limitation subjected due to rotating speed and one-way exceeding coupling normal torque limit of an original dual drive resilience circulating water pump unit is overcome, and total backwaterexcess pressure energy closed-loop recycling and circulating utilization of a circulating water conveying system when the turbine drive circulating pump operates can be met.

The invention discloses a super-resolution microscopic imaging device and method based on a spatial light modulator, and belongs to the field of optical microscopic imaging. Comprising a light source, a polarization beam splitter prism, an excitation light path, a loss light path and a coaxial system, a polarization beam splitter prism is arranged in front of the light source, an excitation light path is arranged at an outlet in one side of the polarization beam splitter prism, and a loss light path is arranged at an outlet in the other side of the polarization beam splitter prism; the outlet side of the excitation light path is coupled into the coaxial system; an outlet of the loss light path is coupled into the coaxial system; an imaging system is arranged on one side of the coaxial system, and a sample to be detected is arranged on the other side of the coaxial system. The system has the beneficial effects that the resolution of the whole system can be adjusted by the vortex light beam adjusted in real time under the condition that the existing light path structure is not changed, and the system can be rapidly adjusted according to different application scenes; and the structure is simple, the resolution ratio is ultrahigh, and the resolution ratio is dynamically adjustable.

The invention provides a light path beam combining and optical fiber coupling device of a spatial light laser. A system comprises two parts, namely a laser beam combining module and an optical fiber coupling module; the laser beam combining module comprises a cage type coaxial system and an optical system; the cage type coaxial system is used for fixing an exciter and an optical lens; the optical system is used for completing laser beam combination; and the optical fiber coupling module comprises an optical fiber coupler, a five-axis optical adjusting frame, a displacement table, an optical fiber and the like. The two lasers are fixed through the cage type coaxial system, the optical axes of the two laser beams are parallel, the first laser beam turns to reach the second beam combiner after passing through the first reflector, and the second laser beam directly reaches the second beam combiner to be combined with the first laser beam; and the combined laser is subjected to fine light path adjustment in a cage type system through a collimator and then is coupled into an optical fiber through an optical fiber coupler.

The invention discloses a welding laser head coaxial vision lens group and a welding laser coaxial system. The welding laser head coaxial vision lens group comprises an imaging objective lens composedof a first positive and negative lens group, an imaging eyepiece composed of a second positive and negative lens group and an iris diaphragm, wherein the imaging objective lens and the imaging eyepiece are symmetrical relative to the iris diaphragm; and imaging light sequentially enters the imaging eyepiece from the imaging objective lens and the iris diaphragm. According to the design, the lensgroup with a symmetrical achromatic structure is adopted, that is, the first positive and negative lens group and the second positive and negative lens group are symmetrical relative to the iris diaphragm, so that the positive lenses in the positive and negative lens groups generate negative spherical aberration, the negative lenses generate positive spherical aberration, and thus, the spherical aberration can be well corrected by combining the positive and negative lenses.