Eight-fold-ratio white light sighting telescope

Abstract

The invention discloses an eight-fold-ratio white light sighting telescope which comprises an objective lens group, an eyepiece group, an image rotation lens group, a zoom hand wheel and a telescope tube. The objective lens group is arranged in the front end of the lens tube; the image rotating lens group is arranged in the rear end of the lens tube; the zoom hand wheel is connected with the steering lens group and is used for adjusting the axial position of an optical element in the steering lens group; the eyepiece group is connected to the rear end of the lens tube. The sighting telescope can achieve multi-magnification adjustment, and is simple and stable in structure and easy to use.

Description

Technical Field

[0001] The invention relates to the technical field of sights, and in particular to an eight-fold ratio white light sight. Background Art

[0002] At present, in order to accurately aim at farther targets, high-magnification scopes have emerged, which have stronger adaptability than low-magnification white light scopes and are therefore more widely used in the market. Existing white light scopes are mostly small-magnification adjustment scopes, which are difficult to adapt to complex usage environments and cannot meet the needs of complex scenes. Summary of the invention

[0003] The purpose of the present invention is to provide an eight-fold ratio white light sight to achieve multi-power adjustment of the white light sight.

[0004] In order to solve the above technical problems, the present invention provides an eight-fold ratio white light sight, comprising: an objective lens group, an eyepiece group, an image transfer lens group, a zoom hand wheel, and a mirror tube; The objective lens group is arranged in the front end of the lens tube; The image transfer lens group is arranged in the rear end of the lens tube; The zoom hand wheel is connected to the steering lens group to adjust the axial position of the optical element in the steering lens group; The eyepiece group is connected to the rear end of the mirror tube. According to the above scheme, the objective lens group includes an objective lens optical system and an objective lens structural component. The objective lens optical system includes a first biconvex lens, a second biconvex lens, a first biconcave lens, and a meniscus lens arranged in sequence from the object side to the image side; wherein the second biconvex lens and the first biconcave lens constitute an objective lens cemented lens.

[0005] According to the above scheme, the eight-fold ratio white light sight includes a graticule, which is arranged at the rear end of the objective structure and is located on the image side of the objective optical system; the object side of the graticule is the graticule surface, and the graticule surface is the image side focal plane of the objective optical system.

[0006] According to the above scheme, the eyepiece group includes an eyepiece group optical system and an eyepiece group structural member; the eyepiece group optical system includes an eyepiece biconcave lens, an eyepiece first biconvex lens, and an eyepiece second biconvex lens arranged in sequence from the object side to the image side; wherein the eyepiece biconcave lens and the eyepiece first biconvex lens constitute an eyepiece cemented lens.

[0007] According to the above scheme, the image-transmitting lens group includes an image-transmitting lens group optical system and an image-transmitting lens group structural member; the image-transmitting lens group optical system includes a front fixed group field lens, a first zoom lens group, a second zoom lens group, and a rear fixed group arranged in sequence from the object side to the image side; the first zoom lens group includes a first zoom meniscus lens and a first zoom biconvex lens arranged in sequence from the object side to the image side, and the second zoom lens group includes a second zoom meniscus lens and a second zoom biconvex lens arranged in sequence from the object side to the image side.

[0008] According to the above scheme, the eight-fold ratio white light sight includes an aperture, which is arranged at the front end of the objective lens assembly structure and coincides with the front surface of the first double convex lens of the objective lens.

[0009] According to the above scheme, the air gap between the first biconvex lens of the objective lens and the cemented lens of the objective lens is 0.2mm~0.5mm; The air gap between the objective lens cementation and the objective meniscus lens is 47.2mm~48.63mm; The air gap between the objective meniscus lens and the graticule is 13mm~14.51mm.

[0010] According to the above scheme, the air gap between the reticle and the front fixed field lens is 9.5mm~10mm; The variable air gap between the front fixed group field lens and the first zoom lens group is 2.5mm~50.622mm; The variable air gap between the first zoom lens group and the second zoom lens group is 4 mm to 6.309 mm; The variable air gap between the second zoom lens group and the rear fixed group is 52.093mm~5mm; The air gap between the rear fixed group and the second image plane is 17.3mm~18.44mm; the second image plane is the object focal plane of the eyepiece group.

[0011] According to the above scheme, the eight-fold ratio white light sight includes an illumination patch and an illumination device group. The illumination patch is arranged on the reticle. The illumination device group supplies power to the illumination patch and adjusts the brightness of the illumination patch.

[0012] According to the above scheme, the eight-fold ratio white light sight includes a plurality of image transfer lens groups, and a plurality of adjustment screw groups are arranged in the middle of the scope tube and distributed along the circumference of the reticle to adjust the position of the reticle.

[0013] Beneficial Effects The invention realizes the variable magnification of the sighting scope by means of the steering lens group and the variable magnification hand wheel, and can meet the aiming requirements of different magnifications.

[0014] Furthermore, the graticule plate can be set to display graticule information, the lighting patch can be set to illuminate the graticule when the lighting conditions are poor, and the lighting intensity of the graticule can be adjusted by the lighting device group to adapt to different lighting conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the optical system structure of an equivalent eyepiece of an eight-fold ratio white light sight at 1x magnification according to an embodiment of the present invention; Figure 2 This is a spot diagram of an equivalent eyepiece of an eight-fold ratio white light sight of an embodiment of the present invention at 1x; Figure 3 This is a field curvature distortion diagram of an equivalent eyepiece of an eight-fold ratio white light sight according to an embodiment of the present invention at 1x; Figure 4 This is a vertical axis chromatic aberration diagram of an equivalent eyepiece of an eight-fold ratio white light sight in one embodiment of the present invention at 1x; Figure 5 It is a schematic diagram of the optical system structure of an equivalent eyepiece of an eight-fold ratio white light sight at 8 times according to an embodiment of the present invention; Figure 6 7 is a spot diagram of an equivalent eyepiece of an eight-fold ratio white light sight of an embodiment of the present invention at 8 times magnification; Figure 7 This is a field curvature distortion diagram of an equivalent eyepiece of an eight-fold ratio white light sight of an embodiment of the present invention at 8 times; Figure 8 This is a vertical axis chromatic aberration diagram of an equivalent eyepiece of an eight-fold ratio white light sight of an embodiment of the present invention at 8 times; Fig. 9 is a point diagram of an objective lens according to an embodiment of the present invention; Fig.10 is a cross-sectional view of an eight-fold scope according to an embodiment of the present invention; Fig.11 yes Fig.10 AA section view; Fig.12 yes Fig.10 BB cross-sectional view; Fig.13 is a cross-sectional view of a steering lens assembly according to an embodiment of the present invention; Fig.14 is a cross-sectional view of an adjusting screw assembly according to an embodiment of the present invention; Fig.15 is a cross-sectional view of an illuminator assembly according to an embodiment of the present invention; Fig.16 is a schematic diagram of a graticule according to an embodiment of the present invention; Fig.17 It is a schematic diagram of the expansion of a zoom tube according to an embodiment of the present invention.

[0016] In the figure: 1-objective lens group, 2-eyepiece group, 3-image transfer lens group, 4-adjusting screw group, 5-illuminator group, 6-objective lens retaining ring, 7-zoom hand wheel, 8-mirror tube, 9-first limit screw, 10-zoom rotating screw, 11-leaf spring, 12-sealing gasket, 13-zoom sealing ring, 14-first sealing ring, 15-first screw, 16-second screw, 17-third screw; 101-first double convex lens of objective lens, 102-cemented lens of objective lens, 201-meniscus lens of objective lens, 301-graticule, 302-front fixed group field lens, 303-first zoom lens group, 304-second zoom lens group, 305-rear fixed group, 401-cemented lens of eyepiece, 402-second double convex lens of eyepiece; 506-image transfer lens tube, 507-image transfer ball head, 508-fixing ring, 509-elastic washer, 510-magnification tube, 511-first washer, 512-front field lens pressure ring, 513-second limit screw, 514-ball head pressure ring, 515-sliding sleeve screw, 516-sliding sleeve, 517-fourth screw, 518-fifth screw, 519-sixth screw, 520-red LED patch; 601-handwheel seat, 602-adjusting screw, 603-inner adjusting handle, 604-handwheel seat pressure ring, 605-locking screw, 606-outer adjusting handle, 607-friction reduction pin, 608-locating pin, 609-locating spring, 610-second sealing ring, 611-third sealing ring, 612-steel ball, 613-seventh screw, 614-second washer; 701- switch seat, 702- battery cover, 703- limit ring, 704- connecting screw, 705- outer sealing ring, 707- brush, 708- circuit board, 709- terminal board pressure ring, 710- fourth gasket, 711- battery guide brush, 712- upper limit ring, 713- retaining ring, 714- button battery. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0018] See also Figure 10~Figure 12 , an eight-fold ratio white light sight, comprising: an objective lens group 1, an eyepiece group 2, an image transfer lens group 3, an adjustment screw group 4, a zoom hand wheel 7, and a mirror tube 8; The objective lens group 1 is arranged in the front end of the lens tube 8; The image relay lens group 3 is arranged in the rear end of the lens tube 8; A plurality of adjusting screw groups 4 are arranged in the middle of the lens tube 8 and distributed along the circumference of the image transfer lens group 3. The inner sides of the adjusting screw groups 4 are in contact with the ends of the image transfer lens group 3 to adjust the end positions of the image transfer lens group 3. The zoom hand wheel 7 is connected to the steering lens group 3 to adjust the axial position of the optical element in the steering lens group 3; The eyepiece assembly 2 is connected to the rear end of the lens tube 8 .

[0019] Furthermore, the objective lens group 1 includes an objective lens optical system and an objective lens structural member, the objective lens optical system includes an objective lens first biconvex lens 101, an objective lens second biconvex lens, an objective lens first biconcave lens, and an objective lens meniscus lens 201 arranged in sequence from the object side to the image side; wherein the objective lens second biconvex lens and the objective lens first biconcave lens constitute an objective lens cemented lens 102; the objective lens group 1 adopts a single-double structure, shrinks the light and reduces the total length of the system, and by reducing the angle of the light passing through the objective lens, makes the light smoother, reduces the tube diameter value of the sight, and makes the product suitable for 30mm tube diameter assembly.

[0020] Furthermore, the eight-fold ratio white light sight includes a graticule 301, which is arranged at the rear end of the objective lens structure and is located on the image side of the objective lens optical system; the object side of the graticule 301 is a graticule surface, and the graticule surface is the image side focal plane (first image plane) of the objective lens group optical system; in this embodiment, the graticule 301 adopts a double-glued graticule (which can maintain a clear field of view at high magnification), the graticule surface is located at the center plane of the glued component, and the flat glass close to the objective lens direction is the protective glass.

[0021] Furthermore, the eyepiece group 2 includes an eyepiece group optical system and an eyepiece group structural member; the eyepiece group optical system includes an eyepiece biconcave lens, an eyepiece first biconvex lens, and an eyepiece second biconvex lens 402 arranged in sequence from the object side to the image side; wherein the eyepiece biconcave lens and the eyepiece first biconvex lens constitute an eyepiece cemented lens 401.

[0022] Further, the image-transmitting lens group 3 includes an image-transmitting lens group optical system and an image-transmitting lens group structural member; the image-transmitting lens group optical system includes a front fixed group field lens 302, a first zoom lens group 303, a second zoom lens group 304, and a rear fixed group 305 arranged in sequence from the object side to the image side; the first zoom lens group 303 includes a zoom first meniscus lens and a zoom first biconvex lens arranged in sequence from the object side to the image side, and the second zoom lens group 304 includes a zoom second meniscus lens and a zoom second biconvex lens arranged in sequence from the object side to the image side; The first zoom lens group 303 and the second zoom lens group 304 are movable to achieve zooming. During the zooming process, the positions of the image-side focal plane of the objective lens group optical system and the object-side focal plane (second image plane) of the eyepiece lens group optical system remain unchanged.

[0023] Furthermore, the eight-fold ratio white light sight includes an aperture, which is arranged at the front end of the objective lens assembly structure and coincides with the front surface of the first double convex lens 101 of the objective lens.

[0024] Furthermore, the focal length of the objective lens group optical system and the focal length of the eyepiece group optical system satisfy: 1.2≥F0 / Fe; wherein F0 is the focal length of the objective lens group optical system, and Fe is the focal length of the eyepiece group optical system.

[0025] Further, the air gap between the first biconvex lens 101 of the objective lens and the cemented lens 102 of the objective lens is 0.2 mm to 0.5 mm; The air gap between the objective lens cemented lens 102 and the objective lens meniscus lens 201 is 47.2 mm to 48.63 mm; The air gap between the objective meniscus lens 201 and the graticule 301 is 13 mm to 14.51 mm; The air gap between the graticule 301 and the front fixed field lens 302 is 9.5 mm to 10 mm; The variable air gap between the front fixed group field lens 302 and the first variable magnification lens group 303 is 2.5 mm to 50.622 mm; The variable air gap between the first zoom lens group 303 and the second zoom lens group 304 is 4 mm to 6.309 mm; The variable air gap between the second variable-power lens group 304 and the rear fixed group 305 is 52.093 mm to 5 mm; The air gap between the rear fixing group 305 and the second image plane is 17.3 mm to 18.44 mm; The total length between the first image plane and the second image plane is 117.643~119.32mm; The air gap between the second image plane and the eyepiece cemented lens 401 is 19.54 mm to 21.3 mm; The air gap between the eyepiece cemented lens 401 and the eyepiece second biconvex lens 402 is 5.366 mm to 5.7 mm.

[0026] In this embodiment, the specific parameters of the sight optical system composed of the objective lens group optical system, the eyepiece group optical system, and the image transfer lens group optical system are shown in Table 1 and Table 2: Table 1 Parameters of the optical system of the sight

[0027] Table 2 Variable air gap parameters

[0028] In the table, surface numbers R1 to R25 are arranged in sequence from the object side to the image side.

[0029] The working principle of the sight optical system includes: when the sight changes from high magnification to low magnification, when the first zoom lens group 303 moves axially along the optical axis, the combined focal length of the sight optical system will change, and the image of the first zoom lens group 303 will also move accordingly. In order to keep the image plane of the sight optical system stationary, the second zoom lens group 304 is moved according to a certain rule while the first zoom lens group 303 moves, so that the image point of the first zoom lens group 303 remains in the original position after passing through the second zoom lens group 304; the movement rule of the second zoom lens group 304 is nonlinear, which corresponds to the movement of the first zoom lens group 303 (in other embodiments of the present invention, the movement of the first zoom lens group 303 and the second zoom lens group 304 can be coordinated by a precision cam). The light passes through the image transfer lens group 3 to form an image on the second image plane, and then passes through the eyepiece group 2 to emit parallel light and form an image on the retina.

[0030] The parameters of the sight optical system of this embodiment meet the following requirements: the spherical aberration, axial chromatic aberration, and sine difference of the optical system are all less than λ / 4, meeting the imaging standard; the system distortion value is less than 3% within the full magnification and full field of view, and the field curvature value is within 2SD, meeting the tolerance of the telescope system aberration. For the structure and optical performance of the sight optical system at 1x and 8x, refer to Figure 1 to Figure 10 .

[0031] In the zoom curve, the displacement of the zoom group and the rotation angle of the cam are in an exponential function relationship, and the displacement of the compensation group and the displacement of the zoom group satisfy Newton's law.

[0032] Furthermore, the eyepiece group 2 is connected to the mirror tube 8 via a connecting ring; the eyepiece group 2 and the connecting ring are threadedly connected, and a diopter adjustment handwheel is provided on the outside of the eyepiece group 2. The diopter adjustment handwheel is rotated to drive the eyepiece group to move axially, and then the diopter value is adjusted to compensate for the observer's vision.

[0033] Furthermore, the eyepiece assembly structure includes an eyepiece diaphragm, which is fixed to the image side end of the image transfer lens assembly structure by a fifth screw 518, and the eyepiece diaphragm is located on the object side of the eyepiece assembly optical system.

[0034] Furthermore, the eight-fold ratio sight includes a first screw 15 , and the first screw 15 is used to fix the eyepiece group 2 and the mirror tube 8 .

[0035] Further, see Fig.13 The image transfer lens assembly structural components include an image transfer lens tube 506, a zoom tube 510, and a ball head mechanism; The front fixed group field lens 302 of the image transfer lens tube 506 is fixed by the front field lens pressing ring 512; the first zoom lens group 303 and the second zoom lens group 304 are fixed in the first zoom lens frame and the second zoom lens frame respectively, the first zoom lens frame and the second zoom lens frame are in the image transfer lens tube 506, and can move axially in the image transfer lens tube 506; the rear fixed group is fixed in the image side end of the image transfer lens tube 506; The outer sleeve of the image transfer lens tube 506 is provided with a zoom tube 510 and a ball head mechanism. The zoom tube 510 is limited by the object side end of the steering lens tube 506 and the ball head mechanism. The ball head mechanism is located at the image side end of the zoom tube 510. The zoom tube 510 is provided with a first zoom curve groove, a second zoom curve groove, and a waist groove (the waist groove is used to limit the forward and backward movement distance of the zoom tube 510. In this embodiment, the groove width is 5mm). The steering lens tube 506 is provided with a straight groove. The first zoom lens frame , and the second zoom lens frame are respectively connected with two sliding screws 515 with sliding sleeves 516, the two sliding screws 515 are respectively located in the first zoom curve groove and the second zoom curve groove, and are both located in the straight groove of the steering lens tube 506; a zoom opening groove of a certain angle is provided on the lens tube 8, and the zoom hand wheel 7 is connected with the zoom rotating screw 10 through a thread, and the inner side optical rod end of the zoom rotating screw 10 passes through the zoom opening groove of the lens tube 8 and is located in the waist groove of the zoom tube 510; The magnification realization principle is as follows: the magnification handwheel 7, the inner end of the magnification handwheel 7 drives the magnification tube 510 to rotate, and then drives the two sliding screws 515 to move in the first magnification curve groove and the second magnification curve groove through the first magnification curve groove and the second magnification curve groove on the magnification tube 510, and because the straight groove of the steering lens tube 506 is limited, the first magnification lens group 303 and the second magnification lens group 304 move axially in the image rotation lens tube 506, thereby realizing the magnification function.

[0036] Further, see Fig.17 The maximum value of the pressure angle of the first zoom curve groove and the second zoom curve groove of this embodiment is less than 65°, which makes the zoom process smoother and less stuck, and can also extend the service life of the slide 516; the sight has a faster low-magnification zoom speed and a smooth high-magnification zoom speed, which is suitable for low-magnification search and high-magnification aiming scenarios; the zoom angle of the zoom opening slot is 215°, which meets the ergonomics and is easy and quick to operate, leaving a 10° curve margin at both the highest and lowest magnifications.

[0037] Furthermore, the image transfer lens assembly structure includes a first limit screw 9, one end of which is threadedly connected to the lens tube 8, and the other end is arranged in the slot of the zoom hand wheel 7. The first limit screw 9 is used to limit the rotation angle of the zoom hand wheel 7.

[0038] Furthermore, the image transfer lens assembly structure includes a rear fixed group frame for fixing the rear fixed group, and the rear fixed group frame is fixed in the image transfer lens tube 506 by a plurality of (four in this embodiment) evenly distributed second screws 16 .

[0039] Furthermore, the structure of the image-transmitting lens assembly includes a leaf spring 11, which is arranged between the lens tube 8 and the image-transmitting lens tube 506, and is used to support the image-transmitting lens tube to eliminate the gap.

[0040] Furthermore, the graticule assembly includes the graticule 301 , and the object side end of the image relay lens tube 506 is connected to the graticule assembly and fixed by a fourth screw 517 .

[0041] Furthermore, a first gasket 511 is provided between the zoom tube 510 and the object side end of the image relay lens tube 506 , and an elastic gasket 509 is provided between the zoom tube 510 and the ball head mechanism to prevent direct mechanical wear between components of the zoom tube 510 during rotation.

[0042] Furthermore, the ball head mechanism includes a rotating ball head 507, a fixed ring 508, and a ball head pressure ring 514; the rotating ball head 507 is fixed to the outside of the rotating lens tube 506, the fixed ring 508 is sleeved on the outside of the rotating ball head 507, and the rotating ball head 507 is axially limited by the ball head pressure ring 514, so that the rotating ball head 507 is rotatably connected to the fixed ring 508; the fixed ring 508 is fixed to the inner side of the lens tube 8; the radial position of the object end of the rotating lens group 3 is adjusted by the adjusting screw group 4, and the image end of the rotating lens group 3 realizes relative rotation with the lens tube 8 through the ball head mechanism.

[0043] Furthermore, the rotating ball head 507 is externally connected to a second limit screw 513 , and the fixing ring 508 is provided with a rotation limit groove; the outer end of the second limit screw 513 is located in the rotation limit groove of the fixing ring 508 , which is used to limit the rotation angle of the rotating ball head 507 .

[0044] Further, see Fig.14 , the adjusting screw group 4 includes: a hand wheel seat 601, an inner adjusting handle 603, an outer adjusting handle 606, and an adjusting head; The handwheel seat 601 is fixed to the mirror tube 8, the inner adjustment handle 603 is rotatably connected to the handwheel seat 601, the outer adjustment handle 606 is fixed to the outside of the inner adjustment handle 603, the adjustment head is threadedly connected to the handwheel seat 601, and the outer end of the adjustment head is transmission-connected to the inner adjustment handle, and the inner end of the adjustment head is in contact with the steering lens group 3.

[0045] Furthermore, the outer adjustment handle 606 is fixed to the inner adjustment handle 603 via a hand wheel seat pressure ring 604 and a locking screw 605 .

[0046] Furthermore, the adjusting head includes an adjusting screw 602 and a wear-reducing pin 607. The wear-reducing pin 607 is fixed to the bottom of the adjusting screw 602. A rotation groove is provided on the top of the adjusting screw 602. The bottom of the inner adjusting handle 603 is inserted into the rotation groove of the adjusting screw 602. The adjustment process of the adjusting screw group is as follows: rotate the outer adjusting handle 606 to drive the inner adjusting handle 603 to rotate, thereby driving the adjusting screw 602 to rotate, so that the adjusting screw 602 and the wear-reducing pin 607 move axially in the handwheel seat 601 under the action of the thread, thereby realizing the adjustment of the steering lens group 3.

[0047] Furthermore, the anti-friction pin 607 is made of brass to reduce friction.

[0048] Furthermore, a blind hole is provided on the side of the inner adjustment handle 603, and a positioning spring 609, a positioning pin 608, and a steel ball 612 are provided in the blind hole from the inside to the outside. A gear is provided on the inner side of the handwheel seat 601. The steel ball 612 contacts the gear of the handwheel seat 601 under the push, and generates a certain adjustment section feeling and a click adjustment sound when the inner adjustment handle 603 is rotated.

[0049] Furthermore, the reticle group includes a red light patch 520 (model 1206 in this embodiment) for illuminating the reticle 301 ; the eight-fold ratio white light sight includes an illuminator group for adjusting the brightness of the red light patch 520 .

[0050] Further, see Fig.15 The lighting device assembly includes: a switch seat 701, a battery cover 702, a battery guide brush 711, a terminal block pressing ring 709, a button battery 714, a circuit board 708, an upper limit ring 712, and a brush 707; The switch base 701 is fixed to the mirror tube 8 (through threads), and the battery cover 702 is rotatably connected to the top of the switch base 701; the terminal board pressing ring 706 is connected to the switch base 710, and the circuit board 708 and the upper limit ring 712 are fixed to the switch base (the upper limit ring 706 has a protruding part, and the circuit board 708 is provided with an opening. The protruding part of the upper limit ring 706 is inserted into the opening of the circuit board 708, which is used to limit the direction of the circuit board 708); the button battery 714 (the model in this embodiment is a 2032 battery) is set in the terminal board pressing ring 706, and the top of the circuit board 708 is electrically connected to the bottom electrode of the button battery 714; the battery brush 711 is fixed to the electric The bottom of the battery cover is used to press the button battery 714 toward the circuit board 708; there is a pair of brushes 707 fixed to the mirror body 8; the bottom end of the brush 707 is electrically connected to the red light patch 520, one of the top ends of the brush 707 is electrically connected to the bottom electrode of the button battery 714 through the central area of ​​the circuit board 708, and the other is electrically connected to the side electrode of the button battery 714 through the outer area of ​​the circuit board 708, and resistors of different resistance values ​​are arranged between the central area and the outer area of ​​the circuit board 708; when the switch seat 701 is rotated, the circuit board 708 rotates accordingly, and then the resistance value between the brushes 707 changes, thereby realizing the brightness adjustment of the red light patch 520.

[0051] Furthermore, the battery guide brush 711 is fixed to the bottom of the battery cover 702 through a retaining ring, and a third gasket 706 is provided under the battery guide brush 711 for shock absorption.

[0052] Furthermore, the brush 707 is fixed on the brush plate, a limit ring 703 is set on the top of the brush plate, a fourth washer 710 is set between the brush plate and the mirror body 8, and the limit ring 703, the brush plate and the fourth washer 710 are fixed to the mirror body 8 by connecting screws.

[0053] Further, see Fig.16 The reticle 301 adopts angular divisions for easy calculation; the ballistic point division is set in the lower half of the division area for easy use; the reticle 301 has a central semicircle with a radius of 0.1mm in the center for low-magnification fast aiming; the reticle 301 adopts a large cross center "+" shaped line as a conventional aiming point, and the accuracy of the reticle line is 1 mil. In actual use, the shooter can choose a suitable aiming point according to the target at different distances and then make precise ballistic corrections by slightly adjusting the handwheel to complete aiming and shooting.

[0054] Furthermore, the airtight components of the eight-fold ratio daylight sight include: A first sealing ring 14 provided between the connecting ring and the zoom hand wheel 7; A sealing gasket 12 disposed between the zoom hand wheel 7 and the zoom rotating screw 10; A zoom seal ring 13 disposed between the zoom hand wheel 7 and the mirror body; A second sealing ring 610 disposed between the hand wheel seat 601 and the inner adjustment handle 603; A third sealing ring 611 disposed between the hand wheel seat 601 and the outer adjustment handle 606; An outer sealing ring 705 is disposed between the switch seat 701 and the battery cover 702 .

[0055] This embodiment solves the problems of large parallax of existing high-magnification scopes, large chromatic aberration at high magnification, and jitter of the zoom hand wheel from an optical perspective. In order to solve the above problems, this embodiment uses high refractive index and high dispersion materials for gluing, and designs the field lens, front field lens and rear field lens at the same time to make the light smoother and reduce the sensitivity of the system. The functional relationship between the zoom group and the zoom tube (cam) is set to an exponential function, reducing the pressure angle of the zoom group and the compensation group, so that the zoom hand wheel rotates more smoothly during the zoom process and reduces the zoom parallax.

[0056] It should be pointed out that, according to the needs of implementation, the various steps / components described in this application can be split into more steps / components, and two or more steps / components or partial operations of steps / components can be combined into new steps / components to achieve the purpose of the present invention.

[0057] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An eight-fold white light sight, characterized in that: include: Objective lens group, eyepiece group, image transfer lens group, zoom hand wheel, mirror tube; The objective lens group is arranged in the front end of the lens tube; The image transfer lens group is arranged in the rear end of the lens tube; The zoom hand wheel is connected to the steering lens group to adjust the axial position of the optical element in the steering lens group; The eyepiece assembly is connected to the rear end of the mirror tube.

2. The eight-fold ratio white light sight according to claim 1, characterized in that: The objective lens group includes an objective lens optical system and an objective lens structural member, wherein the objective lens optical system includes an objective lens first biconvex lens, an objective lens second biconvex lens, an objective lens first biconcave lens, and an objective lens meniscus lens which are arranged in sequence from the object side to the image side; The second double convex lens of the objective lens and the first double concave lens of the objective lens constitute the objective lens cemented lens.

3. The eight-fold ratio white light sight according to claim 2, characterized in that: The eight-fold ratio white light sight includes a graticule, which is arranged at the rear end of the objective structure and located on the image side of the objective optical system; the object side of the graticule is the graticule surface, and the graticule surface is the image side focal plane of the objective optical system.

4. The eight-fold ratio white light sight according to claim 1, characterized in that: The eyepiece group includes an eyepiece group optical system and an eyepiece group structural member; the eyepiece group optical system includes an eyepiece biconcave lens, an eyepiece first biconvex lens, and an eyepiece second biconvex lens arranged in sequence from the object side to the image side; wherein the eyepiece biconcave lens and the eyepiece first biconvex lens constitute an eyepiece cemented lens.

5. The eight-fold ratio white light sight according to claim 3, characterized in that: The image-transmitting lens group comprises an image-transmitting lens group optical system and an image-transmitting lens group structural member; The image-transmitting lens group optical system includes a front fixed group field lens, a first zoom lens group, a second zoom lens group, and a rear fixed group arranged in sequence from the object side to the image side; the first zoom lens group includes a first zoom meniscus lens and a first zoom biconvex lens arranged in sequence from the object side to the image side, and the second zoom lens group includes a second zoom meniscus lens and a second zoom biconvex lens arranged in sequence from the object side to the image side.

6. The eight-fold ratio white light sight according to claim 2, characterized in that: The eight-fold ratio white light sight comprises an aperture, which is arranged at the front end of the objective lens assembly structure and coincides with the front surface of the first double convex lens of the objective lens.

7. The eight-fold ratio white light sight according to claim 3, characterized in that: The air gap between the first double convex lens of the objective lens and the cemented lens of the objective lens is 0.2mm~0.5mm; The air gap between the objective lens cementation and the objective meniscus lens is 47.2mm~48.63mm; The air gap between the objective meniscus lens and the graticule is 13mm~14.51mm.

8. The eight-fold ratio white light sight according to claim 5, characterized in that: The air gap between the reticle and the front fixed field lens is 9.5mm~10mm; The variable air gap between the front fixed group field lens and the first zoom lens group is 2.5mm~50.622mm; The variable air gap between the first zoom lens group and the second zoom lens group is 4 mm to 6.309 mm; The variable air gap between the second zoom lens group and the rear fixed group is 52.093mm~5mm; The air gap between the rear fixed group and the second image plane is 17.3mm~18.44mm; the second image plane is the object focal plane of the eyepiece group.

9. The eight-fold ratio white light sight according to claim 3, characterized in that: The eight-fold ratio white light sight includes an illumination patch and an illumination device group. The illumination patch is arranged on the reticle. The illumination device group supplies power to the illumination patch and adjusts the brightness of the illumination patch.

10. The eight-fold ratio white light sight according to claim 3, characterized in that: The eight-fold day-light sight includes several image-transmitting lens groups, and a plurality of adjustment screw groups are arranged in the middle of the scope tube and distributed along the circumference of the reticle to adjust the position of the reticle.

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