7 results about "Plane mirror" patented technology

The invention relates to a space-borne microwave atmospheric sounding instrument, which comprises feed sources, calibration bodies, a motor, plane mirrors, parabolic reflectors, a scanning drive control module, multiplexers and receiver units. The motor is controlled by the scanning drive control module to drive the plane mirror to rotate. The plane mirrors reflect received electromagnetic wave signals to the parabolic reflectors in the form of plane waves by scanning the atmosphere and the calibration bodies. The parabolic reflectors realize secondary reflection to enable the plane waves to be reflected to the corresponding feed sources arranged opposite thereto. The multiplexers are used for separating the frequency of the electromagnetic wave signals received by the feed sources respectively. Each receiver unit comprises a plurality of receivers parallel with the output end of the corresponding multiplexer, and is used for receiving the electromagnetic wave signals matched with the frequency thereof. The space-borne microwave atmospheric sounding instrument has the advantages of being high in performance, high in integration, low in weight and low in power consumption.

The invention provides a terahertz imaging security inspection equipment used for collecting the terahertz imaging of a target human body and identifying and judging a dangerous article hidden area in the imaging. The equipment comprises a plane mirror scanning unit which comprises a scanning plane mirror and a plane mirror scanning driving component which drives the scanning plane mirror to swing and is used for scanning the target human body in a vertical direction, a three-plane body focusing scanning mirror unit which comprises a three-plane body focusing scanning mirror and a three-plane body driving component which drives the three-plane body focusing scanning mirror to rotate and is used for scanning the target human body in a horizontal direction, a reflector which is arranged in terahertz wave propagation paths of the scanning plane mirror and the three-plane body focusing scanning mirror and are used for focusing corresponding terahertz waves, a point detector which receiving the terahertz waves focused by the reflector, an imaging and analyzing and identifying device which carries out imaging, analysis and identification on the terahertz waves obtained from the detector, and a terahertz wave generator which emits the terahertz waves for illuminating a target.

The invention discloses a calibration optical system based on a geosynchronous orbit differential absorption spectrometer. The calibration optical system is composed of an oscillating mirror system, afront optical system, a solar diffuse reflection plate assembly and a solar light blocking door assembly. The oscillating mirror system is composed of a pointing mirror, a sweeping shaft system, a motor harmonic group and an oscillating mirror U-shaped bracket. The front optical system consists of a primary mirror, a secondary mirror, a third mirror, a plane mirror and a slit. The solar diffuse reflection plate assembly consists of a Teflon diffuse reflection plate and corresponding structural components. The solar light blocking door assembly includes a solar baffle and a motor assembly. Thecalibration optical system introduces a bidirectional reflection distribution function of external solar illuminance with known spectral irradiance at suitable on-board calibration time, thereby accurately measuring the diffuse reflection plate and establishing an approximate lambertian surface source with known spectral radiance to provide known radiation input for a remote sensor. The system has high measurement accuracy, compact volume, light weight and high reliability.

The invention discloses a round-trip through laser amplifier for improving light beam quality, and so that the quality of light beam which passes through the laser amplifier in a round-trip mode can be improved obviously. The invention further discloses a method for improving the light beam quality based on the round-trip laser amplifier. The position of a plane mirror is adjusted for regulating the angle of divergence and the radius of light beam which enters into an amplifier stage for the second time. A laser amplification system which is designed according to the design method not only can obtain high power laser output but also can effectively control the light beam quality of amplifier stage output by adjusting the position of the plane mirror on the rear portion of the amplifier stage and amplifier stage working currents under the condition that high power lasing diode pumping is used.

The invention belongs to the technical field of optics, and particularly relates to a grating external cavity feedback semiconductor laser and an adjusting method thereof. The grating external cavityfeedback semiconductor laser comprises a housing, a substrate, a grating frame, a laser diode, a plane mirror, a pressing plate, a backing ring, a feedback grating, piezoelectric ceramics, a Peltier and a gasket. The plane mirror, the pressing plate, the backing ring, the feedback grating and the piezoelectric ceramics are mounted on the grating frame; the grating frame is fixed in the substrate;and the substrate is fixed on the pedestal of the housing. According to invention, the structure that a laser diode, a feedback grating and a plane mirror in the prior art are arranged separately andindependently is integrated into a whole structure, so that the semiconductor laser has a wider tuning range, the adjustment of the semiconductor laser is simpler and more convenient, and a scheme isprovided for batch production.

The invention relates to a reflective brightening vaginal tractor which comprises a tractor body capable of extending into a vagina and a pull rod connected with the tractor body to be bent. A handleis arranged at the outer end of the pull rod, each of the pull rod and the tractor body is hollow and made of a transparent material, multiple micro plane mirrors in axial arrangement are arranged onthe wall of an inner cavity of the pull rod, a reflective mirror is arranged in an inner cavity at a position where the pull rod and the tractor body are bent, light irradiated on the pull rod penetrates the wall of the pull rod and then irradiates the micro plane mirrors, the light is reflected to the reflective mirror after being reflected by the micro plane mirrors for several times, and then the reflective mirror reflects the light to the tractor body. The light of a shadowless lamp irradiating and penetrating the wall of the pull rod can be reflected to the reflective mirror through the micro plane mirrors and then reflected to the tractor body through reflective effect of the reflective mirror to penetrate the tractor body to be dissipated, so that light brightness in the vagina is improved, and operation sight line is improved.