22 results about "Collimator devices" patented technology

The application belongs to the technical field of double-head photoelectric autocollimator equipment, and particularly relates to a double-head photoelectric autocollimator, which comprises a photoelectric autocollimator body, object lens barrels are arranged on the two sides of the photoelectric autocollimator body, lenses are arranged in the object lens barrels, a sealing cover is hingedly arranged on one side of the object lens barrel, a mounting groove is formed in one side of the sealing cover, a through hole is formed in the middle of the outer wall of the sealing cover, a pressing rod is movably connected in the through hole, a limiting sliding block is arranged on the inner side of the through hole, an arc rotary sliding groove is slidably connected with the limiting sliding block on the outer wall of the pressing rod, a first mounting plate is fixed to one end of the pressing rod extending into the mounting groove, a plurality of telescopic rods are fixed to one side of the first mounting plate, and the same second mounting plate is fixed to the other ends of the plurality of telescopic rods; the application can clean dust on the lenses, has good cleaning effect, avoids the influence of dust on the accuracy of instrument measurement, and can well protect the lenses.

A scanning dynamic collimator device (SDD) for minibeam production. The SDD includes a single slit collimator being mounted on a support. The SDD is arranged to translate the collimator in a plane perpendicular to a plane whereby the single slit extends and / or in a direction parallel to the plane whereby the single slit extends and / or to rotate the collimator relative to a rotation axis parallel to the plane whereby the single slit extends and to tilt the collimator relative to a predefined reference axis and / or relative to a point comprised in the single slit.

The invention provides an optimized multi-leaf beam collimator capable of being used for a medical linear accelerator, and relates to the field of medical physics. On the basis of a traditional multi-leaf beam collimator, the device is coupled with a polypropylene plastic fence and tungsten alloy particles, and the polypropylene plastic fence and the tungsten alloy particles are used for filling gaps behind a conformal target region of the multi-leaf collimator, so that the phenomenon of leakage emission or underemission in the radiotherapy process is avoided, and the purpose of precise radiotherapy is achieved. Wherein the polypropylene shaping fence has considerable thermoplasticity, and an accurate X-ray channel conforming to a target area can be shaped according to the outline of the target area by controlling the temperature (the thermal deformation temperature is about 150 DEG C); each tungsten alloy particle is composed of 95% of tungsten, 3.5% of nickel and 1.5% of copper, is in the shape of a solid ball with the diameter of 0.1 mm, and is used for filling a gap between the multi-leaf collimator and the polypropylene plastic fence. According to the design, the accuracy of radiotherapy is remarkably improved, and a safer and more effective treatment scheme is provided for a patient.

The utility model relates to the technical field of oil pollution degree detection, and discloses an adjusting device for identifying the morphology of particles in liquid through images, which comprises a special optical fixing plate and an adjusting mechanism, a PCBA signal receiving unit and a fixing assembly are arranged at the upper end of the optical special fixing plate; the adjusting mechanism comprises an optical collimator device, a main body adjusting seat, a concentricity adjusting device and an optical objective lens barrel; a captive locking device is arranged on the main body adjusting seat; the fixing assembly comprises a first optical fixing piece and a second optical fixing piece; the concentricity adjusting device, the optical collimator device, the focal length adjusting device and the main body adjusting base are used in cooperation, all key parts can be rapidly adjusted, the requirement for light path quality is met, the sample pool detection device is convenient to disassemble, people can conveniently conduct maintenance, the 7075 aluminum alloy is adopted, the structure is compact, the corrosion resistance effect is high, and the service life of the sample pool detection device is prolonged. Good mechanical performance and anodic reaction are achieved, and the service life of the adjusting device is prolonged.

The utility model discloses an SPECT multi-parallel-hole collimator, a collimator device and a detection device. The SPECT multi-parallel-hole collimator comprises three collimator positions, a calibration position, a first collimator position and a second collimator position which are transversely and continuously arranged, or the first collimator position, the second collimator position, or the zero collimator position, the first collimator position, and the second collimator position. The utility model relates to an SPECT (Single Photon Emission Computed Tomography) multi-parallel-hole collimator device, which comprises two SPECT multi-parallel-hole collimators which are oppositely arranged in parallel. The two PECT multi-parallel-hole collimators which are oppositely arranged in parallel further comprise a set of transverse guide rails, collimator transmission pieces and transmission mechanisms. A single photon emission computed tomography (SPECT) detection device comprises a multi-parallel-hole collimator device and two opposite detectors, each detector is fixed in a detector frame, and a transverse guide rail is fixed on the inner side of the detector frame. The utility model relates to an SPECT imaging method, which utilizes an SPECT detection device to implement detection and comprises a debugging step and a testing step.

The utility model relates to the field of laser cladding technology, concretely is multi -working condition cooperation integrated laser cladding metal additive manufacturing equipment, including the support for being connected with mechanical arm, the collimator device for installing on the support and with laser head connection and the rotation module for driving multiple spray head subassembly rotation and connecting on the support, and multiple spray head subassembly are fixedly installed on the rotation module. The utility model constructs the collaborative working mechanism through the rotation module integration multiple application working condition's spray head and constructs the collaborative working mechanism, so that the utility model can realize the quick switching of spray head for different working conditions, need not repeat dismounting assembly etc. work, and the work efficiency improves greatly, while supports multiple different construction's spray head to share one collimator device, effectively reduces the spray head configuration cost, and flexible switching of different spray heads not only satisfies the forming requirement of complex parts, also satisfies the industrialized production demand of large quantities, multi -working condition alternation, provides efficient solution scheme for diversified production demand.

The application provides a collimator device calibration device and a collimator device calibration method. The collimator device calibration device comprises two parts of a simulated distance calibration tool and a centering calibration tool. The centering calibration tool converts the physical centers of each core device into the axial reference through the collimator reference block, the automatic positioning clamp reference block and the camera reference block, and then ensures the coaxiality through the calibration shaft in series, and is fixed through the quick positioning fastener, so that the coaxiality deviation and the calibration complexity problem are solved. The simulated distance calibration tool is composed of an 8x lens, a collimator track and a lens reference seat, the parallax method is used to calibrate the simulated distance accuracy of the collimator, and the calibration stability and reliability are improved.

The utility model relates to the field of instrument measurement, in particular to a collimator device for testing a night vision device. The collimator comprises an objective lens base, one end of the objective lens base is provided with a target plate, four ends of the bottom end of the objective lens base are provided with objective lens base leveling footstands, the top end of the objective lens base is slidably connected with a collimator objective lens assembly, and the collimator objective lens assembly comprises an objective lens base platform, an optical objective barrel, a two-meter collimator lens, a lens backing ring and a lens locking ring. The two sides of the top end of the objective lens base are slidably connected with objective lens base platforms. The top ends of the objective lens base platforms are fixedly provided with optical objective lens barrels. According to the collimator device used for night vision device testing, the collimator objective assembly drives the scale needle and the graduated scale to carry out scale calculation according to the sliding distance, and then the hand-screwing locking nut is rotated to drive the non-slip mat to position the objective lens base platform, so that the stability of the collimator objective assembly is improved; and the test accuracy is improved.

The transverse intensity distribution of a beam of x-rays or other radiation can be modulated with a multi-slit collimator device that includes one or more sets of collimator leaves arranged in a one-dimensional array and individually movable to form slits of variable width between pairs of adjacent collimator leaves. A two-dimensional intensity distribution may be achieved using multiple sets of one-dimensionally arranged leaves, e.g., by stacking them along the beam in different orientations, or by stacking them in a transverse direction to form a two-dimensional array of leaves. In some embodiments, the multi-slit collimator device also serves beam-monitoring purposes.

The application discloses a mirror seat and an electric focusing collimator device, and belongs to the technical field of collimators. The mirror seat comprises a base and a water-cooling pressing plate. A mirror chamber for mounting a lens is formed in the base, and a flow guide groove surrounding the mirror chamber is also formed in the base. The water-cooling pressing plate is mounted on the end face of the base and seals the flow guide groove. Liquid inlet and outlet openings communicating with the flow guide groove are also formed in the base. The mirror seat is composed of the base and the water-cooling pressing plate. The flow guide groove surrounding the mirror chamber is formed in the base. In the use process, the base can be continuously cooled by introducing cooling liquid into the flow guide groove, so that the high-temperature stress of the mirror seat is relieved, the damage of the high temperature to the lens is indirectly reduced, and the service life is prolonged.

The present application relates to the technical field of lens assembly, and particularly relates to a lens module AA assembly system and an assembly method. The lens module AA assembly system comprises an image sensor bearing device, a lens bearing device, a core adjusting device, a collimator device and a picture card device. The image sensor bearing device comprises an image sensor fixing device and a testing device, and the image sensor is fixed through the image sensor fixing device. The lens is carried through the lens bearing device. The core adjusting device is provided with a relay lens. The lens module, the core adjusting device, the collimator device and the picture card device are sequentially arranged from bottom to top. The lens module AA assembly system has the advantages of simple operation, wide application range and high efficiency.

The invention relates to the technical field of lens assembly, in particular to a lens module AA assembly system and method. The lens module AA assembly system comprises an image sensor bearing device, a lens bearing device, a core adjusting device, a collimator device and an image card device. The image sensor bearing equipment comprises an image sensor fixing device and a testing device, and an image sensor is fixed through the image sensor fixing device. A lens is carried by a lens carrying device. And the core adjusting equipment is provided with a relay lens. The lens module, the core adjusting device, the collimator device and the graphic card device are sequentially arranged from bottom to top. The lens module AA assembling system has the advantages that the operation is simplified, the application range is wide, and the efficiency is high.

The invention relates to the technical field of radiotherapy, and provides a radiotherapy three-dimensional conformal intensity-modulated collimator device, which comprises a plurality of treatment heads and an annular shell, the plurality of treatment heads are arranged at equal intervals along the annular direction, a plurality of structural cavities are formed in the annular shell, the plurality of structural cavities are in one-to-one correspondence with the plurality of treatment heads, and the plurality of structural cavities and the plurality of treatment heads are in one-to-one correspondence. Every two adjacent structural cavities are communicated with each other, and the annular shell is provided with a filling opening and an exhaust opening. The storage tank is filled with a liquid high-density filling material; the automatic pressurizer is provided with a pressurizing opening and an air suction opening, the pressurizing opening is communicated with the filling opening through a first pipeline, a first valve is installed on the first pipeline, the air suction opening is communicated with the exhaust opening through a second pipeline, and a second valve is installed on the second pipeline.

A device for projecting light beams includes a first panel having a first plurality of LED sources, each having a collimator device to obtain a beam of parallel light rays along a direction of emission, and a second panel having a second plurality of LED sources. The second panel is positioned in front of the first panel, relative to the direction of emission, to have LED sources positioned with a center of emission coinciding with the center of emission of a corresponding number of LED sources of the first panel. The second panel has, for each LED source positioned coinciding with the center of emission of the respective LED source of the first panel, a relative open section, surrounding its LED source, configured as an opening for the free passage of the light beam generated by the respective LED source of the first panel.

The invention relates to a device (1) for measuring an optical element (2), in particular an optical element (116, 118, 119, 120, 121, 122, Mi, 207) of a lithography system, comprising at least: - a lighting device (3) comprising a light source (4) and a structuring device (5) for generating structured measurement radiation (6), - a collimator device (7) for illuminating the optical element (2) to be measured with the measuring radiation (6), - a detector device (8) for detecting the measurement radiation (6) emanating from the optical element (2) to be measured. According to the invention, it is provided that an optically relevant area (9) of the optical element (2) can be at least approximately completely covered by a cross-section (10) of the collimated measurement radiation (6).

Described herein are devices, systems, and methods for implementing free-space multi-channel optical interferometers. Such interferometers may include a beam-splitting device or assembly that performs the various beam-splitting and beam-combining functions, and multiple collimator devices configured in pairs that map light for the multiple optical channels along the interferometer paths between sets of waveguide cores. The interferometer may include one or more of the following features: high-precision collimator assemblies constructed from a waveguide array and two collimator lenses whose distance is carefully set to achieve a desired focal length, a transparent plate or set of plates with selective beam-splitting surface coatings serving as the beam-splitting device, and a planar light circuit (PLC) free-space-coupled to an optical fiber to split light from the optical fiber between multiple waveguide cores for the multiple optical channels, optionally with a polarization controller or modulator inserted between optical fiber and PLC for polarization-diverse interferometry.

The application provides a medical particle accelerator scanning type continuous irradiation beam distribution system, which comprises a mounting frame and a double scanning magnet, a scattering device, an energy continuous modulator and a switchable swingable collimator device arranged in sequence from far to near along a straight line from a point light source to an isocenter, wherein the double scanning magnet is responsible for deflecting and scanning a speed, the scattering device is responsible for changing a cylindrical scanning speed into a conical beam with a certain divergence angle, the switchable swingable collimator device is responsible for restricting the conical beam into a trapezoidal beam, and the energy continuous modulator is responsible for longitudinally pulling a Bragg peak to perform continuous irradiation of each irradiation unit.

An adjustable collimator device for collimating a beam of energy emitted from a radiation source is disclosed. The collimator has an elongated plate-like body with a front-end and a rear-end. The collimator has a first set of emission apertures equally spaced around a central axis of the body that defines a zero-degree position. The first set of emission apertures are placed on the rear-end of the body and are configured to receive and sample a beam of energy entering the adjustable collimator device. A second set of apertures are placed proximate the front-end of the body. The second set of apertures are adjustable such that a first of the second set of apertures can be configured to have a first angular offset relative to the zero-axis and a second of the second set of apertures can be configured to have a second angular offset relative to the zero-axis.

An X-ray system for providing an X-ray dosage, includes an X-ray source including an anode and a field emission cathode device in spaced-apart relation with the anode and arranged to emit electrons toward the anode so as to form an elongate focal area on and extending along the anode and to actuate emission of X-ray beams from the elongate focal area directed toward a treatment field. A collimator device is disposed between the anode and the treatment field, wherein the collimator device is configured to shape the X-ray beams from the elongate focal area of the anode by filtering the X-ray beams to minimize a penumbra of the X-ray beams directed through the collimator device to interact with the treatment field. An associated method is also provided.

The invention relates to the technical field of laser cladding, in particular to multi-working-condition collaborative integrated laser cladding metal additive manufacturing equipment which comprises a support used for being connected with a mechanical arm, a collimator device used for being installed on the support and connected with a laser head and a rotating module used for driving a plurality of spray head assemblies to rotate and connected to the support. And a plurality of spray head assemblies are fixedly mounted on the rotating module. Nozzles of multiple application working conditions are integrated through the rotating module, and a cooperative working mechanism is constructed, so that rapid switching of the nozzles can be achieved according to different working conditions, work such as repeated disassembly and assembly is not needed, and the working efficiency is greatly improved; meanwhile, a plurality of nozzles with different structures share one collimator device, so that the configuration cost of the nozzles is effectively reduced; and different spray heads are flexibly switched, so that the forming requirement of complex parts is met, the large-batch and multi-working-condition alternating industrial production requirement is met, and an efficient solution is provided for diversified production requirements.

The application discloses a non-composite shaft photoelectric tracking mechanism and a control method thereof, which comprises a quick mirror, a lens, a camera, a fiber collimator, a fixed fiber collimator device, a fixed camera device and a shell; the quick mirror and the fixed camera device are fixed on the rear plate of the shell; the lens and the camera are connected through a fixed pin; the camera and the fixed fiber collimator device are fixed on the fixed camera device; the shell is in a box body structure as a whole and plays a light shielding role; a cylindrical structure is arranged on the front plate of the shell in front of the reflecting mirror of the quick mirror, so that light can enter conveniently; the quick mirror, the camera and the lens constitute a beacon receiving light path; the receiving light path is reflected by the quick mirror and finally forms an image on the focal plane of a detector assembly. The mechanism has four working modes: a dormant mode, a capture mode, a sighting mode and an event-driven mode. The mechanism realizes accurate pointing control of a light beam with smaller volume, mass and lower energy consumption, realizes capture, aiming and tracking of a target, and is suitable for a microsatellite platform.

Described herein are devices, systems, and methods for implementing free-space multi-channel optical interferometers. Such interferometers may include a beam-splitting device or assembly that performs the various beam-splitting and beam-combining functions, and multiple collimator devices configured in pairs that map light for the multiple optical channels along the interferometer paths between sets of waveguide cores. The interferometer may include one or more of the following features: high-precision collimator assemblies constructed from a waveguide array and two collimator lenses whose distance is carefully set to achieve a desired focal length, a transparent plate or set of plates with selective beam-splitting surface coatings serving as the beam-splitting device, and a planar light circuit (PLC) free-space-coupled to an optical fiber to split light from the optical fiber between multiple waveguide cores for the multiple optical channels, optionally with a polarization controller or modulator inserted between optical fiber and PLC for polarization-diverse interferometry.