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49 results about "Collimator devices" patented technology

Registered collimator device for nuclear imaging camera and method of forming the same

A collimator device for a nuclear imaging camera has a grid of collimation square holes formed by a plurality of elongated, metal sheets arranged in a grid pattern, and pixellated scintillators individually located in each of the collimation square holes. Each of the metal sheets has evenly spaced slots into which other sheets are inserted. At least a portion of the surfaces of the sheets forming the grid of the collimation square holes is coated with an optically reflecting material coating.
Owner:SIEMENS MEDICAL SOLUTIONS USA INC

Laser light source

The present invention relates to a laser light source which reduces wavelength-dependent difference of focal position of condensed light when multicolor light with a wide spectral width is collimated and then condensed. The laser light source incorporates a collimator device, in which an installation position of a collimating lens with respect to a laser light entrance portion is set so that a beam waist position of laser light having passed through the collimating lens shifts closer to the collimating lens with a shorter-wavelength-side wavelength component out of wavelength components included in the laser light.
Owner:SUMITOMO ELECTRIC IND LTD

Collimator device for small animal imaging

The invention discloses a collimator device for small animal imaging, which comprises a scanning bed, a motion control platform, a collimator and an imaging detector, wherein the scanning bed is used for supporting and fixing an object to be detected; the motion control platform is used for controlling the scanning bed to move in a predetermined scanning track; the collimator is used for limiting the angles of radioactive rays emitted by each fault of the object to be detected; and the imaging detector is used for receiving the radioactive rays emitted by the object to be detected and limited with the angles through the collimator, forming an inverse amplified projection image of the object to be detected thereon, acquiring projection data of each fault of the object to be detected and performing fault reconstruction to acquire a three-dimensional fault image of the object to be detected. The collimator device has high flexibility by selecting different pinhole inserts and collimator plates and adjusting the distance between the collimator and the imaging detector, can realize multi-mode imaging of high-resolution imaging, high detection efficiency imaging, large-view small animal imaging and the like, and has imaging high resolution and low cost.
Owner:TSINGHUA UNIV

Medical imaging device for providing an image representation supporting in positioning an intervention device

A medical imaging device and a method for providing an image representation supporting positioning of an intervention device such as a wire tip (4) in a region of interest during an intervention is proposed. Therein, the following process steps are to be performed: (S1) acquiring a pre-live anatomy image (1) including a region of interest; (S2) acquiring a live anatomy image using a live image acquisition device comprising an adjustable collimator device; (S3) identifying a location (5) of the intervention device (4) within the live anatomy image; (S4) adjusting settings of the collimator device based on the identified location of the intervention device for subsequently acquiring a further live anatomy image representing the region of interest using the live image acquisition device with the collimator device being in the adjusted settings; and providing (S5) the image representation by merging information from the live anatomy image into the pre-live anatomy image. Thereby, the intervention device may be continuously tracked and the collimator device may restrict a field of view to a location of the intervention device thereby significantly reducing an applied X-ray dose. Background anatomical information may be introduced into the final image representation using the pre-live anatomy image possibly having a higher image contrast than the live anatomy images.
Owner:KONINKLJIJKE PHILIPS NV

Collimator device for radiotherapy and radiotherapy apparatus using the same

Provided is a collimator device for radiotherapy including: a body including a first through unit and disposed on a path of high energy radiation which in use is irradiated toward a patient's treatment part; a frame including a through hole corresponding to the first through unit and slidably installed in the body; a plurality of multi-leaf collimators (MLCs) slidably installed in the through hole and including radiation shields; a servo motor coupled to the body and the frame in a power manner so as to slidingly move the frame with respect to the body; and a motor controller externally receiving position displacement data regarding a motion of the patient's treatment part due to a patient's breathing and generating a signal for controlling the driving of the servo motor so that the MLCs follow the patient's treatment part and continuously apply radiation to the patient's treatment part based on the position displacement data.
Owner:KOREA INST OF RADIOLOGICAL & MEDICAL SCI

Medical imaging device for providing image representation supporting in positioning intervention device

A medical imaging device and a method for providing an image representation supporting positioning of an intervention device such as a wire tip (4) in a region of interest during an intervention is proposed. Therein, the following process steps are to be performed: (S1) acquiring a pre-live anatomy image (1) including a region of interest; (S2) acquiring a live anatomy image using a live image acquisition device comprising an adjustable collimator device; (S3) identifying a location (5) of the intervention device (4) within the live anatomy image; (S4) adjusting settings of the collimator device based on the identified location of the intervention device for subsequently acquiring a further live anatomy image representing the region of interest using the live image acquisition device with the collimator device being in the adjusted settings; and providing (S5) the image representation by merging information from the live anatomy image into the pre-live anatomy image.. Thereby, the intervention device may be continuously tracked and the collimator device may restrict a field of view to a location of the intervention device thereby significantly reducing an applied X-ray dose. Background anatomical information may be introduced into the final image representation using the pre-live anatomy image possibly having a higher image contrast than the live anatomy images.
Owner:KONINKLIJKE PHILIPS NV

Display device

The invention discloses a display device. The display device comprises a display area and a fingerprint identification area arranged in the display area, and further comprises a display panel which isprovided with a shading structure. In the fingerprint identification area, a plurality of light transmitting holes are formed in the shading structure. The display device further comprises a fingerprint identification group which is arranged below the display panel and corresponds to the fingerprint identification area. The display device has the beneficial effects that the materials of a flat layer, a pixel limiting layer and the retaining wall structure are changed into lightproof materials from light-transmitting materials in the prior art; the light transmitting holes are formed in the fingerprint identification area, so that non-touch effective light is prevented from influencing the precision of the fingerprint identification module; the accuracy of fingerprint identification and touch is improved; and the design of the light transmitting holes plays a role of a collimator, so that a collimator device in the fingerprint identification module can be removed, and the thickness ofthe display device is reduced.
Owner:WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD

Prismatic boresighter

ActiveUS7100319B2Improve performanceIncreased focal length to lens aperture ratioSighting devicesSurveying instrumentsCollimator devicesPrism
An optical collimator device, for use in aligning a riflescope with the bore of the rifle, is formed using a small aperture lens for viewing a reticule through a prismatic assembly. The collimator is magnetically attached to the muzzle of the rifle, and when a target is viewed through the riflescope the image of the reticule and the riflescope cross wires are seen simultaneously with the image of the target.
Owner:OPTICS RES HK

Infrared remote control module and portable electronic device using same

An infrared remote control module (10) includes an infrared detecting module (11) configured for receiving optical signals and converting the optical signals into digital signals, a signal processing module (12) communicating with the infrared detecting module; and a controlling feedback module (13) communicating with the signal processing module. The infrared detecting module includes a lens barrel (110), an infrared band-pass filter (112) arranged in the lens barrel, a lens assembly (113) arranged in the lens barrel, an image pickup module (114) arranged in the lens barrel, and a collimator device (116) selectably moveable into or out from the lens barrel. By being moveable in such a fashion, the collimator device is configured for selectively collimating the optical signals, and, thus, the remote control module can be used for shooting or motion-based actions.
Owner:HON HAI PRECISION IND CO LTD

Integrated flying spot X-ray machine

The invention discloses an integrated flying spot X-ray machine which comprises a radiation source generator (40) for generating an X-ray; a rotation collimator device (60) on which at least one small through hole are disposed and which can rotate around the radiation source generator (40); a no-frame torque motor (80) driving the rotation collimator device (60) to rotate around the radiation source generator (40); and a cooling device (20) for cooling the radiation source generator (40), wherein the radiation source generator (40), the rotation collimator device (60), the no-frame torque motor (80) and the cooling device (20) are equipped on integrated mounting frames (10,11). Compared with the prior-art, the integrated flying spot X-ray machine provided by the invention has a simple and compact structure and is a key core component for human body security check and medical fields.
Owner:NUCTECH JIANGSU CO LTD +1

Liquid crystal display device

The invention provides a liquid crystal display device which comprises a liquid crystal display panel and a backlight module. The liquid crystal display panel comprises a quantum dot color pixel layer, an upper polarizing film, a liquid crystal switching unit and a lower polarizing film which are laminated in sequence; the quantum dot color pixel layer comprises a red sub-pixel unit, a green sub-pixel unit and a blue sub-pixel unit; the backlight module is arranged under the liquid crystal display panel and comprises a backboard and a luminescent device arranged on the backboard, and the luminescent device comprises an LED luminescent unit and an optical collimator device located above the LED luminescent unit. According to Rach invariant, the optical collimator device is arranged above the LED luminescent unit, a light emergent aperture is enlarged, light emergent angle of backlight is decreased, collimating emergence of light to a certain extent is realized, and the problem about pixel color crosstalk due to the fact that the light emergent angle of the backlight is too large when an image is displayed on the liquid crystal display panel is further solved.
Owner:HISENSE VISUAL TECH CO LTD

Optical switch and optical branch/insertion unit comprising it

An optical switch easy to adjust optical parts without using a catoptric system and an optical add / drop multiplexer using the optical switch are provided. Between an input light outputting collimator device 20 and an output light inputting collimator device 21 provided to face each other at a predetermined spaced interval, a drop light inputting collimator device 22 and an add light outputting collimator device 23 fixed and held on a movable holding member 24a in common are moved forward and retreated, and thereby a switching is conducted.
Owner:HOYA CORP

X ray collimator apparatus

The invention relates to an X-ray collimator device which comprises a base (6). The invention is characterized in that: the base (6) is fixedly connected with a slit body (1); a cut-through slit (2) is arranged in the slit body (1); the slit (2) is rectangular; an internal snap-fitting plane (10) and an outer snap-fitting plane (11) of an L-shaped upper fastener (1-1) and a lower fastener (1-2) are snap-fitted in a staggered way along an optical path direction with a convex step face and a concave step face which are mutually matched, and fixed with a positioning pin (4) and a positioning screw (5) so as to form the slit body (1), the appearance of which is a regular hexahedron. The slit of the invention used for the collimator device of an X-ray test analysis instrument device has accurate positioning and does not produce a penumbra region or X-ray scattering interference; the processing and the use assembly debugging are convenient; the fast replacement is convenient; the precision and the efficiency of the test analysis are reliably enhanced; and the requirement of the high precision test can be met.
Owner:SOUTHWEST TECH & ENG INST

Gamma ray spectroscopy monitoring method and apparatus

The present invention relates generally to the field of gamma ray spectroscopy monitoring and a system for accomplishing same to monitor one or more aspects of various isotope production processes. In one embodiment, the present invention relates to a monitoring system, and method of utilizing same, for monitoring one or more aspects of an isotope production process where the monitoring system comprises: (A) at least one sample cell; (B) at least one measuring port; (C) at least one adjustable collimator device; (D) at least one shutter; and (E) at least one high resolution gamma ray spectrometer.
Owner:BABCOCK & WILCOX TECHNICALSERVICES GRP INC

Large-aperture long-focal-length optical axis parallelism measuring system and measuring method thereof

The invention discloses a system for measuring parallelism of a large-aperture long-focal-length optical axis. The system comprises a high-precision five-dimensional adjusting frame, a standard plane mirror, an off-axis paraboloid primary mirror, a hyperboloid secondary mirror, a first spectroscope, an interferometer, a second spectroscope, a third spectroscope, a laser, an integrating sphere, a first optical wedge, a second optical wedge, a CCD camera and a computer. The off-axis paraboloid primary mirror, the hyperboloid secondary mirror and the first spectroscope form an off-axis clamping type collimator device; and the second spectroscope, the first optical wedge, the second optical wedge, the CCD camera and the computer form a CCD branch. The invention further discloses a detection method of the large-aperture long-focal-length optical axis parallelism measurement system. The invention not only has the advantages of large aperture, no central obscuration, high transmittance and good image quality, but also has the advantages of small system focal length limitation, accurate reference system axis selection, better correction of off-axis phase difference, high measurement precision and simple and convenient operation.
Owner:HEFEI UNIV OF TECH

Radiological shooting system

The invention provides a radiological shooting system which comprises a radiological image inspecting device, an intelligent control device, a lifting support device, a movable collimator device, a portable control board structure, a power structure, a support plate, an illuminating lamp, a scanning plate, a sliding groove, an X-ray source, an X-tray tube, a shooting inspecting bed and a memorizer. The radiological image inspecting device is arranged on the upper portion of the X-ray source. The intelligent control device is arranged on the lower portion of the memorizer. The lifting support device is arranged on the opposite face of the scanning plate. The radiological image inspecting device, the intelligent control device and the movable collimator device are arranged, so that control is convenient, accuracy is improved, time and labor are saved, safety and reliability are achieved, clear observation is achieved, the shooting effect is improved, detecting is convenient, and operation is easy. Therefore, function diversity is perfected, and the practical effect is improved.
Owner:冯艳

Revolving radiation collimator

Devices, systems and method that allow for delivery of therapeutic radiation beams of differing sizes or shapes during a radiation treatment are provided herein. Such devices can include a rotatable collimator body having multiple collimator channels of differing size or shape defined therein, the channels extending through the collimator body substantially perpendicular to the axis of rotation. The collimator body can include markers thereon to facilitate detection of an alignment position by a sensor of a control system to allow the collimator body to be rapidly and accurately moved between alignment positions to facilitate delivery of differing therapy beams during a treatment.
Owner:ZAP SURGICAL SYST INC

Medical imaging device for providing an image representation supporting in positioning an intervention device

A medical imaging device and a method for providing an image representation supporting positioning of an intervention device such as a wire tip (4) in a region of interest during an intervention is proposed. Therein, the following process steps are to be performed: (S1) acquiring a pre-live anatomy image (1) including a region of interest; (S2) acquiring a live anatomy image using a live image acquisition device comprising an adjustable collimator device; (S3) identifying a location (5) of the intervention device (4) within the live anatomy image; (S4) adjusting settings of the collimator device based on the identified location of the intervention device for subsequently acquiring a further live anatomy image representing the region of interest using the live image acquisition device with the collimator device being in the adjusted settings; and providing (S5) the image representation by merging information from the live anatomy image into the pre-live anatomy image. Thereby, the intervention device may be continuously tracked and the collimator device may restrict a field of view to a location of the intervention device thereby significantly reducing an applied X-ray dose. Background anatomical information may be introduced into the final image representation using the pre-live anatomy image possibly having a higher image contrast than the live anatomy images.
Owner:KONINKLJIJKE PHILIPS NV

Laser collimator device and manufacturing method thereof

The invention discloses a laser collimator device and a manufacturing method thereof. The laser collimator device comprises the components of a heat radiation base which is provided with a through hole; a laser which is fixed in the through hole of the heat radiation base; a transition ring which is fixed on the heat radiation base and has a through hole that is penetrated by the emitted light beam of the laser; and a lens module which comprises a collimating lens and a lens seat; wherein one end of the lens seat is fixed with the collimating lens and furthermore is fixedly connected with the transition ring through the lens seat. The collimating lens is arranged in the through hole of the transition ring. As mentioned above, through setting the laser in the through hole of the heat radiation base, on condition that normal transmission of the laser is ensured, the laser collimator device provided by the invention has functions of discharging large amount of heat generated in transmission of the laser through the heat radiation base, improving transmission stability reduction and service life shortening of the laser because of heat, furthermore improving transmission stability of the laser collimator device and prolonging service life of the laser collimator device.
Owner:SOLOREIN TECH

Collimation system capable of realizing automatic and rapid switching

The invention discloses a collimator device capable of achieving automatic and rapid switching, a precise movement control method of the collimator device and a collimator recognition method.The collimator device comprises a transmission assembly and at least two sets of collimator assembling assemblies, the transmission assembly is connected with the collimator assembling assemblies, the transmission assembly at least comprises a rotating base assembly, and the rotating base assembly is connected with the collimator assembling assemblies; the collimator assembling assemblies comprise collimators, and the transmission assembly can achieve automatic switching of different collimator assembling assemblies through rotation action. According to the invention, through automatic rotation, automatic identification and automatic locking of the turntable mechanism, rapid switching of different collimators is realized, and the treatment head can rapidly switch the collimators according to a treatment plan in the treatment process. The defect that time is delayed when the collimator is replaced in the prior art is overcome, the collimator can be replaced without stopping treatment under most conditions, the repeated positioning precision of the device is high, safety and reliability of a system can be guaranteed through three-level locking protection, and damage of dark current to a patient can be reduced through the blind hole collimator.
Owner:JIANGSU RAYER MEDICAL TECH GO LTD

Reduced footprint collimator device to focus light beam over length of optical path

A reduced footprint collimator device to focus light beam over length of optical path for use in an optical cytometry device or other optical instrument where a focused beam of light is passed through a test medium and then sampled by a photomultiplier or multiple photomultipliers for analysis. This device provides alignment and focus of that beam and collimation along the entire beam path. In addition in order to reduce the overall footprint of the beam path this device uses a precision coated prism to redirect the optical path perpendicular to the entering optical beam. The reduced footprint collimator device to focus light beam over length of optical path generally includes a reduced footprint 90 degree collimator which allows light beam collimation, beam path alignment, selectable beam focal distance, and reduces stray light reflections all in a minimal footprint.an These features allows for a smaller overall instrument design.
Owner:MACCAL CO INC

Optical pickup and information equipment

An optical pickup (100) includes: an irradiating device (101) for irradiating a laser beam (LB); a first light focusing device (104) for focusing the laser beam on the recording medium (10); a collimator device (102) which is disposed on the optical path between the irradiating device and the first light focusing device and which can be displaced along the optical path of the laser beam; a splitting device (103) which reflects one portion of the laser beam and transmits therethrough another portion of the laser beam; a light receiving device (111) for receiving the reflected one portion of the laser beam; and a second light focusing device (112) for focusing, on the light receiving device, the reflected one portion of the laser beam, the light receiving device and the first light focusing device is disposed at a position at which rate of change in light density of the laser beam on the first light focusing device before and after displacement of the collimator device is substantially the same as that on the light receiving device before and after the displacement of the collimator device.
Owner:PIONEER CORP

Motion guiding assembly of collimator device

The present application relates to a motion guiding assembly for guiding the motion of a collimator device. The motion guiding assembly may include a first pair of flexible plates connected to the collimator device. The first pair of flexible plates may be deformed in a direction perpendicular to the opening of the collimator device. Based on the driving force, the deformation of the first pair offlexible plates can guide the motion of the collimator device.
Owner:SHANGHAI UNITED IMAGING HEALTHCARE

Rotary positioning bread board assembly optical collimator device

PendingCN113703172AOptical assembly is easyImprove Optical Assembly EfficiencyOptical elementsCollimator devicesEngineering
The invention provides a rotary positioning bread board assembly optical collimator device. The rotary positioning bread board assembly optical collimator device comprises an upper bread board, a lower bread board, a four-dimensional adjusting frame and a ceramic bottom plate, a first turntable and a second turntable are arranged on the upper bread board; the four-dimensional adjusting frame comprises a base, a first adjusting plate, a second adjusting plate, a third adjusting plate and a collimator clamp, the base is arranged on the first rotating disc, an X-axis adjusting structure and a Z-axis adjusting structure are arranged on the first adjusting plate, and the second adjusting plate and the third adjusting plate are movably connected through a theta Z-axis adjusting structure and a theta Y-axis adjusting structure; and when the optical collimator is assembled, the first rotating disc and the second rotating disc are controlled to rotate according to a preset rotating sequence and a preset rotating angle, and light focusing value adjustment of the optical collimator is achieved by adjusting the X-axis adjusting structure, the Z-axis adjusting structure, the theta Z-axis adjusting structure and the theta Y-axis adjusting structure. According to the invention, the optical assembly efficiency can be greatly improved, the focusing is more accurate, and the value adjustment is quicker.
Owner:SHENZHEN SDGI OPTICAL NETWORK TECH

Ultralow-temperature collimator device in vacuum environment

The invention discloses an ultralow-temperature collimator device in a vacuum environment. The ultralow-temperature collimator device comprises: a supporting cylinder device; a first reflecting mirror which is arranged at one end of the supporting cylinder device; a second reflecting mirror which is arranged at the other end of the supporting cylinder device, wherein the reflecting surface of the first reflecting mirror is opposite to the reflecting surface of the second reflecting mirror; and a cooling device which is arranged on the outer side of the supporting cylinder device in a surrounding mode. The ultralow-temperature collimator device in the vacuum environment can have the same change rate in the ultralow-temperature environment, and the overall precision of equipment is guaranteed.
Owner:SANHE LANSTECH OPTOELECTRONICS SCI & TECH CO LTD
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