48 results about "Collimator devices" patented technology

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.

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.

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.

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.

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.

The present invention relates to a laser light source and others for decreasing wavelength-by-wavelength differences of focal positions of focused components in collimating and then focusing polychromatic light with a wide spectrum width. The laser light source includes a collimator device, in which relative positions of emergence of a laser beam emitted from a polychromatic light source and a collimating lens composed of an achromatic lens can be adjusted at a 10 μm level or less.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.