Device for collinear transfer of optical axes
(57) Abstract:Usage: test and measurement equipment, namely, devices used for accurate installation, alignment and operation of large systems Gothic. The device is designed for high-collinear transfer of optical axes at distances of a meter or more when operating it in arbitrary positions. The inventive device includes an inner tube with a sealed end that is installed in the outer tube on two supports, the volume between the tubes filled with fluid. On the lateral surface of the external and internal tubes has four symmetrically placed Windows, which is installed with the bellows. Before the input and output Windows in the inner pipe is installed on pentaprism. In addition, the device entered the compensator weight mounted on the middle of the length of the inner tube, two additional bellows mounted in the ends of the outer tube, pentaprism with the spatial path of beams and one of the prisms is made in the form of gimbal and the other in the form of a ball bearing. 2 Il. The invention relate to measuring and control technique, namely, devices that can be used the high-precision collinear transfer of optical axes at distances of a meter or more in its operation in arbitrary positions 
A device of the class collinear transfer prism system 180ocontaining the inner and outer tubes, the side surfaces each of which has two Windows, two pentaprism installed in the inner tube in front of the Windows, while the inner pipe is installed in the external on the supports with the possibility of a limited axial displacement and rotation 
The obstacles to improving the accuracy of the device number of the linear transfer of the optical axes, are the deformation of the inner tube under the action of gravity, the separation of the rays roof faces pentaprism limited axial movement and rotation of the inner pipe.The closest in technical essence to the invention is a device for collinear transfer of optical axes containing the inner and outer tubes, sealed ends, on the side which made four symmetrically placed Windows, the Windows are fitted with bellows inner tube is installed in the outside on two pillars, two pentaprism installed in the inner tube in front of the input and output Windows, the volume between the tubes filled with liquid 
By reason of the receipt is vozmozhnosti compensation residual deflection of the inner tube, because of ghosting and the presence of axial movement and rotation of the inner tube.The present invention is a device for increasing accuracy collinear transfer of rays of the optical axes.The technical result improved precision device for collinear transfer of optical axes is achieved in that in a device containing an outer and an inner tube, on the side which made four, symmetrically placed Windows, the Windows are fitted with bellows, the inner pipe is made with a sealed Tercel and set in the external on two pillars, two pentaprism installed in the inner tube in front of the input and output Windows, the volume between the tubes filled with liquid in the device introduced two additional compensator bellows, which are installed at the ends of the outer tube, and a balancer weight is installed on the middle of the length of the inner,on its outer diameter, the pentaprism front of the entrance window is made with a spatial course of the rays, with one of the abutments are made in the form of a gimbal, knitted with the external and internal pipes, and the other in the form of a ball bearing fixed to the inner pipe.Device for collinear transfer optical axis contains the inner pipe 1 and outer pipe 2. On the lateral surfaces of the pipes 1 and 2 are open 3-6, which has a bellows 7 10. In the inner pipe before Windows 3 l 4 installed pentaprism 11 and 12. The inner tube 1 is installed in the outer 2 on two supports, each of which is located at a distance of 0.2 l from the ends of the inner pipe 1, where l is the length of the inner pipe 1. The first support includes a frame 13 and two gifts mutually perpendicular axes 14 and 15, when the frame 15 is installed between pipes 1 and 2 are coaxially take off. Axis 14 is connected rigidly with the frame and through the bearings 16 with the inner pipe 1, axis 15 by means of bearings 17 are connected with the frame 13 and is rigidly with the outer tube 2. Axis 14 lies in a plane parallel to the base of pentaprism 11 12. The second support 18 is made in the form of a ball bearing set outer diameter of the inner tube 1 with a gap relative to the outer tube 2. On the outer diameter of the inner tube 2, at the distance of 0.5 l from the end of the inner tube 1, a compensator weight (balancers) 19. The volume between the tubes 1 and 2 filled with a liquid 20. In the outer tube 2 at its ends, mounted on the bellows 21. - 2.The device operates as follows.The outer tube 2 is mounted on a deformable surface or structure occupying an arbitrary spatial position.High accuracy of the device is ensured by the stability of the inner tube 1: it does not deform under its own weight because suspended in the liquid 20, and the residual unbalance is compensated by the beams 19. The bellows 7 -10 exclude the transfer of deformation of the outer tube 2, the inner tube 1, and their symmetrical arrangement eliminates the effects of excessive force by the fluid 20 and allows the inner pipe 1 to be in equilibrium, not caving in supports. When changing the ambient temperature bellows 21, bordering air through the holes 23 of the cover 22, eliminate excess forces from the fluid 20. Since the first bearing 13 -17 located at a distance of 0.2 l where l is the length of the inner pipe 1, it allows pentaprism 11 and 12 do not change the mutual angular position under the bias of the residual deflection of the inner tube 1 and the difference in coefficients of volumetric thermal expansion of the fluid 20 and the material of the inner tube 1.The sighting beam direction POSM the presence of pentaprism with the spatial course of the rays 12 (4) image quality as eliminates ghosting and scattering of light on the edge of the cover, typical of the prisms with roofs.Thus, the device provides higher accuracy collinear transfer axis direction and spaced at distances of the order of a meter or more when installing it on a deformable structure and operation in arbitrary positions. Device for collinear transfer of optical axes containing an outer and an inner tube, on the side are four symmetrical Windows, the Windows are fitted with bellows, the inner pipe is made with sealed ends and set in the external on two pillars, two pentaprism installed in the inner tube in front of the input and output Windows, the volume between the tubes filled with a liquid, characterized in that the compensator weight, two additional bellows, which are installed at the ends of the outer tube, and a balancer weight is installed on the middle of the length of the inner tube at its outer diameter, the pentaprism front of the exit window is made with a spatial course of the rays, with one of the supports is made in the form of gimbal associated with the external and internal is
FIELD: nuclear power engineering.
SUBSTANCE: in order to check component 10 such as nuclear fuel pellet of any diameter and length for perpendicularity and to obtain measurement results stable with time, this component is placed on supporting surface and distances separating diametrically opposite generating lines of component from read-our rod T, T' are measured at two different levels and in two measuring planes P, P' normal to one another by means of two pairs of laser micrometers A1, A2; B1, B2. Maximal deviation of component under check from perpendicularity is calculated on them.
EFFECT: enhanced precision of component check for perpendicularity.
12 cl, 4 dwg
FIELD: measuring engineering.
SUBSTANCE: device comprises corner mirror with two mirror surfaces which define the right angle between them, flat mirror, and adjusting units. The optical axis of one of the channels to be tested passes through the corner mirror. The optical axis of the second channel to be tested passes through the flat mirror. The device is additionally provided with several corner and flat mirrors. Each pair of the mirrors defines a prism and used for testing one channel of the article with one wavelength. The adjusting instrument is made of a built-in collimator provided with several light sources having different wavelengths.
EFFECT: enhanced accuracy of testing.
2 cl, 3 dwg
FIELD: the invention refers to checking devices.
SUBSTANCE: the arrangement for checking misalignment has a source of light, two optoelectronics systems each with flexible illuminating and receiving beams of light guides located coaxially and photoreceivers registering signals in one plane. The arrangement has two additional optoelectronics systems and registers signals from the source of lighting in two cross-perpendicular planes together with the first two optoelectronics systems. At that the outputs of receiving light guides are optically compatible with photodiode matrixes with the outputs of matrixes connected with the inputs of the unit of analogue-digital conversion and the outputs of the unit of analogue-digital conversion are connected with the inputs of the computing unit.
EFFECT: the invention simplifies the construction and increases accuracy and productivity of checking operations.
FIELD: physics, measurement.
SUBSTANCE: method for alignment of rotary mating shafts axes that form composite shafting, relative to axis of drive shaft of braking machine of motor stand and axis of crankshaft of internal combustion engine (ICE), consists in control, installation and necessary adjustment of coaxiality in location of specified mating shafts of bench and ICE that is preset by field of permissible deviations by means of adjustment of spatial location of support elements of mechanical system of ICE fixation in bench. Light beam display screen is mounted between flange of drive shaft of braking machine of bench and flange of mating section of intermediate shaft of ICE bench support. In the opposite flange of drive shaft bracket is installed with holder, in which autonomous module of alignment laser device is mounted with source of laser radiation. Light beam of laser ray is directed and focused in direction of line trajectory. ICE crankshaft is forcedly and slowly rotated, trajectory line of focused light ray light beam is visually inspected, focused laser ray light beam motion trajectory is matched with trajectory line, or field of permissible deviations formed by two concentric circles, whenever trajectory line diverts moving light beam from trajectory of marked circle line, or outside the field of permissible deviations formed by two concentric circles - corresponding adjustment operations are performed for forced variation of ICE spatial location on motor test bench by means of preset spatial variation of support vertical stands location height, as well as bearing cross beams of ICE fixation system in bench to spatial position.
EFFECT: increased accuracy of technological operation of alignment of axes in mating shafts of composite shafting with further periodical technological operations for control of axes alignment preservation in preset limit allowances.
8 cl, 18 dwg
FIELD: physics; optics.
SUBSTANCE: method involves formation of autocollimation images of a monochromatic point light source lying at the optical axis of the system using three auxiliary axial synthetic holograms, which are made in line on a common substrate and lying between mirror elements of the system being adjusted. The light source is place in front of the substrate with the hologram on the side of the first mirror element. The first hologram is a reflection hologram and forms an autocollimating image of the light source. The second hologram is a transmission hologram and forms an autocollimating image of the light source together with the second mirror element. The third hologram is a reflection hologram and forms an autocollimating image of the light source together with the first mirror element. Distribution of radii of the annular zones in the structures of these holograms is defined by conditions given in the formula of invention.
EFFECT: increased reliability and accuracy of adjusting double-mirror centred optical systems and widening of their range due to reliable and accurate alignment of axes of symmetry of mirror surfaces of the second order or higher, including off-axis mirrors, as well as high accuracy of setting up an air gap between peaks of mirror surfaces.
SUBSTANCE: proposed device comprises system of prisms with inlet and outlet pupils and radiation source. All prisms integrated into single unit with face of first prism represents a right dihedron that makes outlet pupil, while reflecting faces of, at least, two other prisms, makes outlet pupils. Note here that all prisms are interconnected via, at least, one rhombic prism with one reflecting and one semi-translucent face so that right trihedral angle is formed in their connection between faces of inlet pupil and each of outlet pupils. Beam directed into prismatic single unit inlet pupil from radiation source changes its direction by 180°.
EFFECT: inbuilt control compact device.
FIELD: lens alignment.
SUBSTANCE: method includes the use of the centring socket with one movable and one rotating section, which is fixed in the turning spindle, and an autocollimating unit fixed in the tail-stock in order to align every surface of the lens in relation to the spindle rotation axis. When a multicomponent lens is aligned, one lens surface is selected in accordance with design or technological considerations, and the lens is installed in such a way so the autocollimation point of the selected surface lies in the same place as the rotating section centre of curvature of the centring socket which lies on the spindle rotation axis due to the selected length of the process part of the frame or due to the use of spacing collar. The autocollimation point is aligned with the centre of curvature of the centring socket rotating section by repositioning the movable section while keeping the same position of the autocollimation point of the selected lens surface which was previously aligned with the centre of curvature of the centring socket rotating section.
EFFECT: improved lens alignment; removing the limits of alignment surface choice.
FIELD: measurement equipment.
SUBSTANCE: invention relates to control and measurement equipment and is aimed at increasing reliability and efficiency of monitoring alignment of two-mirror aligned optical systems in process of their assembly and alignment, and also in the standard mode, in process of their operation in observatories, which is provided due to the fact that the device comprises a monochromatic source of light, a collimator and a beam splitter to form reference and working branches. The working branch comprises a focusing lens, two axial reflecting adjusting synthesized holograms arranged on the reflecting surface of the secondary mirror, preferably in its edge zone, coaxially with its optical axis. Hologram apertures may be arranged in the form of circular rings or as pairs of diametrically opposite parts of appropriate circular rings, turned to each other at a certain angle. In the central hole of the main mirror there is a membrane installed with a hole, the centre of which is matched with the top of the reflecting surface of this mirror and the focus of the focusing lens. The reference branch comprises a flat reference mirror perpendicularly to light beams spreading from the beam splitter, which may be arranged in the form of a prism-cube, the face surface of which with a reflecting coating applied on it at the side of the reference branch is a flat reference mirror. In the recording part there is the second focusing lens, a position-sensitive photodetector device with an outlet to a unit of information display and processing.
EFFECT: increased reliability and efficiency of alignment of two-mirror aligned optical systems due to development of a single optical element with high accuracy, which is not disturbed in time, at the same time the number of elements is reduced, and the number of monitored sections is reduced down to one.
5 cl, 7 dwg
SUBSTANCE: system has a processing module, a first measurement module mounted on a first element and having a radiation unit for a beam of optical radiation, a second measurement module mounted on a second element and having a position-sensitive detector for determining at least one coordinate of the image of the beam in a Cartesian coordinate system within the detection range on the detection plane of the detector, and an optical element which enables to convert the beam before incidence thereof in the detection region on the detection plane. As a result of the conversion, the image of the beam on the detection plane is scale-converted on two mutually perpendicular axes lying in that plane and having different scaling factors, wherein said coordinate of the image of the converted beam is a coordinate which determines the position of the corresponding one of said scaling axes in the Cartesian coordinate system on said detection plane.
EFFECT: simple setup process, wider measurement range and low cost of the system.
37 cl, 3 dwg
SUBSTANCE: apparatus has a collimator with transmitting channels which operate in different spectral ranges and a receiving channel which is made in form of an optoelectronic observation system with a video monitor. An adjustable multichannel system is provided with a transmitting channel which operates in the spectral range of the receiving observation channel of the collimator. The apparatus is supplemented with a panel for synchronising and generating line illumination pulses and central pulses, a dual-beam oscilloscope and a second video monitor. The video monitor of the optoelectronic observation system is outside the structure of the collimator.
EFFECT: high reliability and accuracy of aligning a multichannel system and cutting duration thereof.
SUBSTANCE: device has circular metallic plate, in which a periodic matrix of rectangular slits is cut. Plate is positioned in such a way, that a falling beam of millimeter-long waves falls at an angle of 45° relatively to plate surface. Polarization of falling beam is parallel to plate surface. When direction of plate is such, that electric field is perpendicular to slits (i.e. electric field is directed transversely to lesser dimension of slits), plate transfers almost 100% of falling power. If the plate rotates around its axis for 90° (while keeping angle between falling beam and plate equal to 45°) in such a way, that falling electric field is parallel to slits, then plate transfers 0% and reflects almost 100% of falling power at an angle of 90° relatively to falling beam. By changing rotation angle between 0° and 90° both reflected and passed power can be continuously varied between values 0% and 100% from falling power. Light divider has cooling device for taking heat, absorbed from magnetic waves, away from edge of metallic plate.
EFFECT: continuous variation of reflected and passed power.
11 cl, 15 dwg
FIELD: image generation devices - displays.
SUBSTANCE: claimed device contains a light source, liquid-crystalline panel, and also redirecting film and stack of optical wave conductors positioned between the first two parts, where optical wave conductors are made in form of films, first ends of which are oriented towards the light source, and second ends are extended relatively to one another with creation of toothed surface, which is connected to first toothed surface of redirecting film, second surface of which is connected to liquid-crystalline panel, where the teeth of both connected surfaces have to faces.
EFFECT: increased brightness of image.
6 cl, 2 dwg
SUBSTANCE: light conducting optical element, which includes at least one light supplying base, which is equipped with at least two surfaces located parallel to each other; optical means that are used for entering light beams into the base by total internal reflection so that the light would strike one of the above surfaces, set of one or more partially reflecting surfaces located inside of the base, the surfaces of which are not parallel to the above base surfaces; the partially reflecting surfaces being flat surfaces selectively reflecting at an angle, which are crossed by part of beams several times before exiting the base in the required direction.
EFFECT: provision of wide field of view and increase of eye movement area with device fixed.
44 cl, 36 dwg
SUBSTANCE: optical substrate contains three-dimensional surface preset by the first function of surface pattern, modulated second function of surface pattern. The first function of surface pattern can be described by length, width and vertex angle with optical characteristics for formation of, at least, one output mirror component. The second function of surface pattern can be described by geometry with, at least, pseudorandom characteristic for modulation of the first function of surface pattern, at least, by phase along length of the first function of surface pattern. At that the phase presents horizontal position of peak along width. The surface of optical substrate creates mirror and scattered light from input light beam. The three-dimensional surface can have value of correlation function which is less than approximately 37 percent of initial throughout the length of correlation about 1 cm or less.
EFFECT: brightness increase is provided.
46 cl, 41 dwg
SUBSTANCE: method for separation of combined surface and volume electromagnet waves of terahertz range, which includes preliminary shaping of groove with smoothened edges on sample surface, at that groove axis is perpendicular to plane of incidence that crosses track of surface electromagnet wave (SEW) rays bundle and having size along track that is less that SEW spread length, and further direction of combined waves to groove, differs by the fact that groove is shaped in the form of regular cone half, axis of which lies in the plane of sample surface, at that angle of SEW deviation from incidence plane that contains volume wave, is equal to the following: γ=arcsin[tg(α)-(π-2)-k'], where α is angle between generatrix and cone axis, k' is actual part of SEW refraction index.
EFFECT: provision of spatial separation of SEW and volume wave by means of SEW direction variation.
SUBSTANCE: optical system of spectrum divider for IR-area of spectrum comprising flat-parallel plate with spectrum-dividing coat installed at the angle of 45 degrees to optical axis differs by the fact that plate is located in convergent bundle of beams in space for objective image, downstream compensator of aberrations is installed comprising two lenses: the first one located along with beams travel is positive with convex first surface and cylindrical second surface, the second one is plano-concave that it inverted with its concavity to image and displaced in meridional plane along with direction perpendicular to optical axis.
EFFECT: creation of optical system of spectrum divider for instruments that operate simultaneously in two different ranges of spectrum IR-area with simultaneous increase of aberrations correction quality and reduction of instrument dimensions.
3 dwg, 4 tbl
FIELD: technological processes, metal working.
SUBSTANCE: invention is related to the field of laser processing of materials, in particular, to device of multiway laser processing and may be used in production of large number of products at single laser complex, also in process of laser cutting, welding, pad welding and selective sintering. Device comprises N+1 lasers of initial beam division system and system of beam convergence, which is arranged in the form of set of N+1 telescopes, every of which is optically connected to laser. Telescopes are arranged with the possibility of independent rotation and displacement in two mutually perpendicular planes.
EFFECT: provision of multiple rise of efficiency of laser technological complexes, reduced power inputs at high quality of product.
SUBSTANCE: device has a laser and, optically connected to the laser, a system for dividing the initial beam, a beam convergence system, galvano scanner with a focus lens and a telescope-radiation homogeniser, fitted on the beam path in front of the system for dividing the initial beam. The system for dividing the initial beam and the beam convergence system are in form of mirror matrices. The mirrors in the matrices have equal surface area and can independently rotate and move in two mutually perpendicular planes. Mirrors in the matrix of the beam convergence system can additionally move in the plane of the matrix.
EFFECT: multiple increase in efficiency of laser beam machines and reduced power consumption at high quality of the product.