Sight with variable magnification

IPC classes for russian patent Sight with variable magnification (RU 2364900):

G02B23/10 - reflecting into the field of view additional indications, e.g. from collimator (collimators in general G02B0027300000; graticules G02B0027340000)

G02B17/08 - Catadioptric systems

F41G1/38 - Telescopic sights specially adapted for smallarms or ordnance (telescopic sights in general G02B); Supports or mountings therefor

Another patents in same IPC classes:

Optic sight / 2364899

Sight comprises the following serially installed components: objective, mesh, two-component turning system and ocular. Additionally beam-splitter cube, three mirrors and positive components are introduced. Beam-splitter cube is installed between components of turning system, its beam-splitter plane is arranged in the form of diagonal facet, lower part of which is located closer to objective. On top above the cube there is an additional positive component glued of two lenses, above which the following components are installed: the first flat mirror parallel to beam-splitter cube facet, then the second flat mirror installed perpendicularly to the first mirror in front of focal plane of ocular, and the third mirror inclined to optical axis and inverted with their reflecting surface to ocular and installed between focal plane of ocular and the second component of turning system.

Sight / 2364898

Sight comprises the following components along with direction of rays - objective, collective lens, turning system, the first mesh containing nontransparent dashes on transparent background and installed in ocular focus, ocular and the second mesh. Additionally beam-splitter cube is introduced, which is installed between the first mesh and ocular, beam splitter plane of which is inverted to the first mesh with its first end, and with its second end - to ocular, and three light diodes installed above the second mesh. The second mesh containing transparent dashes on nontransparent background is installed parallel to sight axis and cathetus facet of cube, which produced cube rib together with the first end of beam-splitter plane. Collective lens is installed in front of focal plane of objective.

Optical system of endoscope / 2337606

Invention is intended for observation of narrow biological channels and remote cavities of a human body. The optical system of an endoscope contains objective, optical transferring system, light guide used for illumination. In addition transferring chamber, communication channel, television receiver, collimator are entered into system. The objective end is bridged to an input of transferring system, the end of transferring system is bridged to an ocular input, the ocular end is bridged to an input of the transferring chamber, the end of the transferring chamber is bridged to a communication channel input, the communication channel end is bridged to an input of the television receiver, the end of the television receiver is bridged to a collimator input.

Optical sight for small arms / 2315936

The optical sight for small arms has a device for radiation of the laying mark, laying mark control device, device for correction of the laying mark, optical collimator unit and a power supply source with a switch. The device for radiation of the laying mark is made in the form of an electronic matrix with radiating elements. The laying mark control device is made in the form of a microcontroller with a decoder. The device for correction of the laying mark is made in the form of a microswitch.

Instrument for daytime and night observation and aiming / 2310219

The instrument has a front-view mirror with a system of stabilization and aiming of the sighting line optically linked with the sight channel, which includes an optical module including the daytime and night channels. The instrument has also a radiator unit, scanning unit, photodetector unit, the output of the photodetector unit is connected to the input of the analog-to-digital converter, whose output is connected to the control electronics unit.

Optical targeting device / 2276802

Optical targeting device for day and night observation consists of collimator system in form of two-les glued objective, made in form of negative and positive quasi-focal meniscuses, directed by concave surfaces to one another, light-splitting cube, positioned behind second positive meniscus, and light source, positioned outside optical axis. On concave surface of first from object negative meniscus, interferential spectrum-splitting cover is positioned. Light-splitting cube is glued together of two same prisms with interferential spectrum-splitting cover on glued hypotenuse side of one of prisms. One of leg sides of first prism along beams way is perpendicular to optical axis and directed towards objective, and close to second side light source is positioned. Relations displayed in formula of the invention are fulfilled by described device.

Method for adjusting direction of viewfinder axis of two-chamber television system and device for realization of method / 2275750

Adjustment of viewfinder axis direction is performed in television cameras synchronized by frequency and phase, and is performed by means of reflective and electronic "meshed field" tables, parameters of which consider base distance along horizontal line between geometrical centers of photo-detectors of television cameras, and also by means of laser viewfinder, probe emission of which is performed in direction towards reflective table through groove, made in base of television system, in parallel to its mounting plane.

Optical system for generating image of object in two fields of vision / 2355003

Present invention can be used, for example, in aircraft onboard surveillance systems with detector arrays. The optical system has narrow and wide field of vision channels. The narrow field of vision channel, in the direction of the beam, there are series-fitted concave aspherical mirror with a central opening, switching convex aspherical mirror, as well as a lens adjuster shared by both channels, a five-lens projection lens, protective glass, cooled diaphragm and a filter. To switch on the wide filed of vision channel, the switching convex aspherical mirror is moved away from the path of the beam and is replaced by a switching lens objective. Entrance pupils of the channels are mated with the cooled diaphragm. Images in both channels are constructed in one plane. The entrance pupil of the narrow field of vision channel is on the concave aspherical mirror, and the entrance pupil of the wide field of vision channel is on the lens on the switching lens objective.

Two-channel coaxial catadioptric lens / 2335790

Catadioptric lens contains visible band catadioptric channel and lens "ТП" channel within central screening zone of catadioptric channel with common transit line. The Catadioptric channel contains four components, first of which is protective plane-parallel plate with cutout central zone. Second component contains a convex-plane lens and glued meniscus lens block convexly turned to image plane, and biconcave lens. Bottom surface of second component contains annular reflective coating. Third component is meniscus lens concave turned to subject space with reflective coating on second surface and cutout central zone. The fourth component consists of three single lenses, first of which is meniscus lens, second and third ones are biconvex. Lens "ТП" channel contains three meniscus lenses, first and third of which are concave turned to image plane and second one is convexly turned thereto.

Panorama mirror-lens system with video camera / 2335003

Invention may be used, for instance, in security systems of supervision. System contains two components installed along route of beams from objects space on single optical axis and video camera installed behind the first component. Two components create mirror-lens telescopic system, outlet pupil of which matches with inlet pupil of video camera lens. The first component is arranged in the form of lens with convex negative mirror surface and transparent central zone. The second component is arranged in the form of lens with positive mirror surface and is turned to the first component with its concave transparent surface. Focus distance of the second component is determined by the formula f₂'=(1/2)R₁β, where R₁ - radius of convex mirror surface of the first component, and β - increase of telescopic system.

Catadioptric lens / 2333518

Lens contains two-lens correction element in the form of negative and positive lenses, primary reflector, secondary convex spherical mirror with reflective coating, its convex surface facing toward the image side, and double-lens compensator in the form of biconcave and biconvex lenses provided between secondary mirror and image plane. The primary reflector is designed in the form of concave spherical mirror with reflective coating, its concave surface facing toward the object side. Biconcave lens of double-lens compensator is spaced (0.06...0.12)f' apart from biconvex lens, f' being lens focal length. The equivalent focal length of two-lens correctional element can be (6...9)f', and that of double-lens compensator (-1.5...0.9)f'.

Optical system / 2313115

Optical system includes mirror-lens objective, containing following parts positioned along the movement of beam: positive lens, Mangin mirror, secondary spherical mirror, combined with second surface of positive lens, and lens compensator composed of four components, and also an objective positioned additionally on optical axis of mirror-lens objective in aperture made in central part of positive lens, which objective is composed of four components, first one of which is made in form of negative double-glued lens, composed of biconcave lens and positive meniscus, second component - in form of positive meniscus, which faces object space with concave surface, third component - in form of negative double-glued lens, consisting of biconcave and biconvex lenses, fourth one - in form of a biconvex lens. In lens compensator the first component is made in form of negative meniscus, which faces image space with its concave surface, second one - in form of biconvex lens, third and fourth ones - in form of flat-concave and flat-convex lenses respectively. Flat-convex lens is mounted with possible movement perpendicularly to optical axis for stabilization of image.

Electro-optical complexed watching and identifying system for uv, visible and ir spectrum ranges / 2305303

System has identification channel and detection channel. Identification channel has two-mirror objective in form of ring-shaped segment of main mirror with convex spherical surface and of aplanatic corrector, identification channel radiation receiver. Detection channel has objective disposed in cone-shaped hollow area formed by radiation flux, which radiation is received by objective of identification channel, and detection channel radiation receiver. Whole structure is placed inside spherical envelope, which envelope carries simultaneously the surface of ring-shaped area of aplanatic corrector, protection window, which window has to be fairing with area of transparency of 0,0235-3 mcm, and device for fixing radiation receivers of detection and identification channels. Wide-angled UV variable objective is used as objective of detection channel with area of transparency of 0,235-0,4 mcm. Objective is brought into coincidence through mirror, mounted at angle at back section, with radiation receiver is form of silicon array radiation receiver. Either silicon array being sensitive up to wavelengths λ=1,1 mcm, or image intensifier being sensitive up to wavelengths λ=1,8 mcm or CCD array being sensitive within IR spectrum range is used in narrow field channel as radiation receiver.

Broad-angle mirror-lens objective of telescope / 2294551

Correction lens element is made of two lenses - flat-concave and flat-convex, made of one sort of glass and with equal axial thickness d_M, calculated from mathematical formula noted in invention formula. Flat-concave lens, facing the object with its concave side, is inclined for angle, determined from mathematical formula, while flat-convex lens, with its flat side touching the flat surface of flat-concave lens, is shifted in meridian plane relatively to the center of flat-concave lens.

Infrared mirror-lens objective with double field of view / 2292066

Infrared mirror-lens objective with double field of view includes lens compensator, made in form of positive meniscus, facing with its convex portion the object with aperture in central part, concave primary Mangin mirror, made in form of negative meniscus, facing the image with convex portion, on convex surface of which mirror cover is applied with aperture in central part, secondary counter mirror, with mirror cover in convex part, facing the image with convex part and mounted with its possible moving in and out of beams route, focal compensator, made in form of position meniscus, facing the object with convex part and mounted in aperture of primary Mangin mirror. In front of lens compensator - position meniscus negative meniscus is positioned, facing the object with concave part, and behind it, in front of counter-mirror - biconvex lens is located in central aperture of lens compensator - positive meniscus.

Ir mirror-lens objective / 2288493

Objective can be used in far or middle IR-range. Objective has first positive lens made in form of menisci turned with its convexity to object; negative menisci lens turned with its concavity to object, with ring-shaped mirror reflecting layer which is applied onto second surface and which acts as function of main mirror; sphere-shaped counter mirror which is turned with its convexity to image and which is disposed between first and second lenses; and positive menisci which is turned with its concavity to image and which is disposed between counter mirror and plane of images in convergent bundle of rays. Second lens has opening in central part. Protecting mirror (flat-parallel plate) can be mounted between objective and behind it. All the lenses in objective can be made of material being transparent for IR-wavelength range from 3 to 5 mcm or for far spectral IR-range from 8 to 12.5 mcm.

Method for forming a family of complex systems for surveillance, recognition and targeting based on family of universal objectives and the complex system / 2273036

Complex system has recognition channel, including two-mirror objective and matrix receiver of recognition channel, and detection channel, including detection channel objective and matrix receiver of detection channel radiation. Objective of detection channel is positioned inside zone of central vignetting of recognition channel objective, which is formed in cone-shaped hollow area, formed by radiation flow received by two-mirror recognition channel objective, containing main mirror, made in form of ring-shaped segment with convex aspheric surface, and special corrector in form of external circular segment with spherical profile. During that mathematical relations provided in inventive formula are true. Complex system is positioned in spherical cover, which contains surface of circular zone of special corrector, protective window in form of cowl with transparency zone ranging from 0,5 to 12 micrometers, and device for holding matrix receivers. As objective of detection channel wide-angle automatic-zoom lens is utilized, transparent in spectrum ranges or from 0,4 to 1,1, micrometers, or from 3,2 to 5,6 micrometers, or from 7 to 12 micrometers, while range of sensitivity in recognition channel is selected in either visible zone of spectrum, or from 3 to 5 micrometers, or from 7 to 12 micrometers.

Optic sight / 2364899

Sight / 2364898

Optical binocular sight (versions) / 2362192

Proposed sight comprises lens, reticule, two two-component relay systems, two lens rings and tree pairs of parallel-in-pair mirrors. The lens incorporates additional positive component arranged to move along the axis, ahead of the fist semi-transparent mirror. The second mirror is located parallel to the first one, reticule being arranged behind it at the lens focus. The first two-component relay system and third mirror, arranged perpendicular to the second mirror, are located on one axis with the said reticule. The fourth mirror arranged in parallel to the third mirror and first lens ring are located, further on, on aforesaid lens axis. Between the first and fourth mirrors on the said lens axis located are the following components, i.e. the fifth mirror arranged perpendicular to the first mirror, the second relay system with its axis perpendicular to the lens axis, and the sixth mirror arranged in parallel to the fifth one. The second lens ring is located on the axis parallel to the first lens ring and at identical distance, with the latter, from the lens. Interpupillary distance is varied by varying the gap between the second relay system components.

Optical sight (versions) / 2334934

Optical sight refers to the optical-electronic equipment and can be used as the gauge of optical guidance of the devices demanding aimed guiding on object. The sight contains a viewing channel including an objective, eyepiece and projective channel including a glowing aiming dot, one or several lenses and mirror reflecting surface established at an angle to optical axes of the objective and lenses and crossing them.

FIELD: physics, optics.

SUBSTANCE: sight comprises objective, collective positive lens with grid applied onto its flat surface, pancratic turning system comprising two positive components and ocular. Objective is made of positive convexo-convex lens and negative meniscus arranged at d distance from it and inverted with its concavity to positive lens. Mirror coat is applied on central part of convex surface of negative meniscus. Behind negative meniscus there is a spherical mirror with opening in central part at distance D from objective. Spherical mirror is inverted with its concavity to negative meniscus of objective, and D>10d. Behind mirror there is negative concavo-concave lens introduced, being glued of positive meniscus and concavo-concave negative lens.

EFFECT: provision of variable magnification of high zoom factor 12,5^X-50^X with insignificant increase in longitudinal dimensions and weight and achievement of resolution limit in the center of angular visual field at maximum magnification of not more than 3" at ratio of magnification variation equal to 4.

2 dwg

The invention relates to optical instruments, namely, optical sights used for the firing of small arms.

Known optical sight containing the lens, the collective positive lens that are printed on the flat surface of the grid, zoom inversion system consisting of two positive components, and the eyepiece (see RF Patent №2157556 "Reticle with variable magnification", IPC G02B 23/02, 09.09.1999,).

Common symptoms are known and offer sights are the following features: lens, collective positive lens that are printed on the flat surface of the grid, zoom inversion system consisting of two positive components, and the eyepiece.

In this device by moving components inversion system, the increase in G is changed from 3.2^xto 9.8^xfocal length of lens f'=119,7 mm Lowest total focal length of the eyepiece and a turning system f'_ε=f'/G_max=119,7/9,8=12,2142 mm, the longitudinal dimension L=288 mm, the resolution limit of the telescopic system is not more than 6” in the center of the angular field at maximum magnification, the magnification of equal 3. However, the application of this technical solution when you create a scope with a large increase from 12.5^x50^xwill lead to value the positive increase in length and weight. Thus, the focal length of the new lens f'_newwhen G^max_new=50^xwill be equal to f'_new=f'_ε×G^max_new=12,2142 mm×50=610,714 mm, and the length of the sight will be equal to L_new=(L-f'_ε)+f'_new=(288-119,7)mm+610,714 mm=779,014 mm, which is absolutely not acceptable to carry weapons.

The objective of the invention is the creation of a more perfect rifle scope with variable magnification high magnification, having small dimensions and weight.

The technical result of the proposed sight is providing variable magnification of a large multiplicity of 12.5^x-50^xwith a slight increase in the longitudinal size and weight and the maximum resolution in the center of the angular field of view at maximum magnification, no more than 3” with the multiplicity of the changes increase equal to 4.

This technical result is achieved by the fact that in the sight with variable magnification, containing the lens, the collective positive lens that are printed on the flat surface of the grid, zoom inversion system consisting of two positive components, and the eyepiece lens made of a biconvex positive lens and at a distance d from it a negative lens made in the form of a negative meniscus facing the concavity to the positive lens in the Central part of the convex surface of which is coated with a mirror coating, next is the newly introduced spherical mirror with a hole in the Central part at a distance D from the lens and converts the concavity to the negative meniscus lens, with

D>10d,

where D is the distance between the negative meniscus lens and a mirror, d is the distance between the positive lens and a negative meniscus lens, and a mirror is a negative biconcave lens, glued positive meniscus and a biconcave negative lens.

Figure 1 shows the optical scheme of the proposed sight. On one axis are consistently lens 1, the collective positive lens 2, on a flat surface where the printed grid, two-relay system 3 and the eyepiece 4. The lens 1 is composed of a positive biconvex lens 5, a negative meniscus 6, facing concavity to the lens 5, the Central portion of the convex surface of which is coated with a mirror coating 7 concave mirror 8 with an opening 9 in the Central part 9 and a biconcave lens 10, glued positive meniscus 11, and a biconcave negative lens 12. The distance between the lens 5 and the meniscus 6 is d, and the mirror 8 is located from the meniscus 6 at a distance D.

Rifle scope with variable magnification is as follows.

Luminous flux from the target passes the it through the lens 5, the meniscus 6, further reflected from the mirror 8 to the mirror surface 7 of the meniscus 6 and through the opening 9 in the mirror 8 falls on a biconcave lens 10 through which focuses on a flat surface collective lens 2 with the sighting grid. Further, the light flux through the lens 2, a relay system 3 and the eyepiece 4 is directed into the eyes of the arrow 13. This provides the following relationship: D>10d,

where D is the distance between the negative meniscus 6 lens and a mirror 8,

d is the distance between the positive lens 5 and a negative meniscus 6.

The change in the apparent increase of sight from 12.5^x50^xoccurs as a result of differential movement components inversion system 3.

The photo shows the scope zoom (model PEPS 12,5-50×60), designed and manufactured according to the present invention, which has the following characteristics:

the longitudinal size L=363 mm;

the focal length of the lens f'=600 mm;

the distance between the lens and d=10.1 mm;

the distance between the negative meniscus mirror D=143 mm;

increase of 12.5^x-50^x;

the diameter of the entrance pupil 60 mm;

the field of view of 1.8°and 0.5°;

the removal of exit pupil - 80 mm;

the resolution is 2.5”;

weight 0,65 kg

This sight is fully achieve the expected those who practical result.

Rifle scope with variable magnification, containing the lens, the collective positive lens that are printed on the flat surface of the grid, zoom inversion system consisting of two positive components, and the eyepiece, characterized in that a lens made of a biconvex positive lens and at a distance d from it a negative lens made in the form of a negative meniscus facing the concavity to the positive lens in the Central part of the convex surface of which is coated with a mirror coating, next is the newly introduced spherical mirror with a hole in the Central part at a distance D from the lens and converts the concavity to the negative meniscus lens, this
D>10d,
where D is the distance between the negative meniscus lens and a mirror;
d is the distance between the positive lens and a negative meniscus lens,
behind the mirror is put a negative biconcave lens, glued positive meniscus and a biconcave negative lens.