A 10x ratio white light riflescope and optical system thereof

Abstract

The utility model discloses a 10 times ratio white light sighting telescope and optical system thereof, the optical system includes the first diaphragm, objective lens optical system, scale plate, image transfer lens optical system, eyepiece optical system that are arranged in proper order from object side to image side, objective lens optical system contains objective lens first lenticular lens, objective lens cemented lens, objective lens meniscus mirror, image transfer lens optical system contains the first cemented lens of axial movement zoom and the second cemented lens of compensation, and scale plate is located in objective lens image side focal plane, and eyepiece object side focal plane is second image surface, and the position of two image surfaces is unchangeable when zooming. The system can reduce stray light, eliminate aberration, need not additional focusing, promote imaging definition and sighting accuracy.

Description

Technical Field

[0001] This utility model relates to the field of optical sights, specifically to a 10x white light sight and its optical system. Background Technology

[0002] Currently, optical sights are commonly used to improve the accuracy of firearms. High-magnification white light sights are versatile, used for target searching at low magnification with a wide field of view, and for magnifying and observing targets at high magnification with a narrow field of view. Therefore, there is a significant market demand for high-magnification sights. However, current high-magnification white light sights generally suffer from poor image quality, complex structures, and low stability, making them unable to withstand the impact of firearms. Furthermore, most white light sights have inadequate ergonomic design, causing considerable inconvenience to users. Summary of the Invention

[0003] The purpose of this invention is to provide a 10x white light scope and its optical system to improve the user experience of white light scopes.

[0004] To solve the above-mentioned technical problems, this utility model provides an optical system for a 10x white light sight, comprising a first aperture, an objective lens optical system, a reticle, an image-rotating lens optical system, and an eyepiece optical system arranged sequentially from the object side to the image side; The objective lens optical system includes a first biconvex objective lens, a cemented objective lens, and a meniscus objective lens arranged sequentially from the object side to the image side; the cemented objective lens is formed by cementing a second biconvex objective lens and a biconcave objective lens arranged sequentially from the object side to the image side; the first aperture coincides with the object side of the first biconvex objective lens; The image-switching lens optical system includes a front field lens meniscus, a first image-switching lens cemented lens, a second image-switching lens cemented lens, and a rear field lens cemented lens, arranged sequentially from the object side to the image side. The first image-switching lens cemented lens can move axially for magnification, and the second image-switching lens cemented lens can move axially for compensation. The first image-switching lens cemented lens is formed by cementing the second image-switching lens meniscus and the first image-switching lens biconvex lens, arranged sequentially from the object side to the image side. The second image-switching lens cemented lens is formed by cementing the third image-switching lens meniscus and the second image-switching lens biconvex lens, arranged sequentially from the object side to the image side. The rear field lens cemented lens is formed by cementing the fourth image-switching lens meniscus, arranged sequentially from the object side to the image side. The eyepiece optical system includes an eyepiece cemented lens and an eyepiece biconvex lens arranged sequentially from the object side to the image side; the eyepiece cemented lens is formed by cementing together an eyepiece biconcave lens and an eyepiece first biconvex lens arranged sequentially from the object side to the image side. The image-side focal plane of the objective lens optical system is the first image plane, which is located between the objective lens optical system and the image-rotating lens optical system. The reticle is set at the first image plane. The object-side focal plane of the eyepiece optical system is the second image plane, which is located between the image-rotating lens optical system and the eyepiece optical system; the positions of the first and second image planes remain unchanged during zooming.

[0005] According to the above scheme, the optical system meets the requirements. ; The focal length of the objective lens optical system. This refers to the focal length of the eyepiece optical system.

[0006] 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 ranges from 10.524 to 15.286 mm; The air gap between the cemented objective lens and the meniscus objective lens ranges from 30.110 to 35.862 mm. The air gap between the meniscus objective lens and the reticle ranges from 8.241 to 13.389 mm. The air gap between the reticle and the front field lens meniscus ranges from 10.200 to 14.526 mm. The air gap between the cemented rear mirror and the second image plane ranges from 14.226 to 20.459 mm. The air gap between the second image plane and the eyepiece cemented lens ranges from 24.338 to 26.118 mm. The air gap between the cemented eyepiece and the biconvex eyepiece lens ranges from 0.399 to 0.554 mm.

[0007] According to the above scheme, the variable air gap between the front field lens meniscus and the first cemented lens of the image-spinning lens is 3 to 60.784 mm; The variable air gap between the first cemented lens of the image-switching lens and the second cemented lens of the image-switching lens is 0.5–30.9 mm; The variable air gap between the second cemented lens of the image-switching lens and the cemented lens of the rear field lens is 59.305–4.5 mm.

[0008] According to the above scheme, it includes a microscope tube, a zoom handwheel assembly, and an objective lens assembly, a reticle assembly, an image-rotating lens assembly, and an eyepiece assembly arranged sequentially from the object side to the image side; The objective lens group includes a first aperture stop and an objective lens optical system, the reticle group includes a reticle, the image-rotating lens group includes an image-rotating lens optical system, and the eyepiece group includes an eyepiece optical system. The objective lens group, reticle group, and image-rotating lens group are located inside the microscope tube. The eyepiece group is connected to the end of the microscope tube. The zoom handwheel group is connected to the outer periphery of the microscope tube and is connected to the first and second image-rotating lenses in a driving connection.

[0009] According to the above scheme, the reticle group includes a reticle frame, which is connected to one end of the image-rotating lens group. The reticle is set inside the reticle frame, and the reticle frame is circumferentially provided with light-emitting elements for illuminating the reticle.

[0010] According to the above scheme, the illumination brightness of the light-emitting body is adjustable; the lens tube is equipped with a switch illumination group, which includes a power supply mechanism and a gear switching mechanism. The power supply mechanism includes a battery, which is electrically connected to the gear switching mechanism. When the gear switching mechanism is operated, the battery, the light-emitting body and resistors of different resistance values ​​form a circuit, or the circuit with the light-emitting body is broken.

[0011] According to the above scheme, the image-switching lens group includes an image-switching lens tube and a zoom tube, with the image-switching lens tube disposed inside the zoom tube; the front field lens meniscus is fixed inside the image-switching lens tube, and the first and second cemented image-switching lenses are fixed inside the zoom lens frame and the compensation lens frame, respectively. The zoom lens frame and the compensation lens frame are slidably connected to the image-switching lens and are drivenly connected to the zoom tube, which is drivenly connected to the zoom handwheel assembly; the rear field lens cemented lens is fixed inside the rear field lens frame, which is connected to the image-side end of the image-switching lens tube, and a second aperture is connected to the image-side end of the rear field lens frame.

[0012] According to the above scheme, an image-rotating ball head is provided on the outside of the image-rotating lens tube, and a stepped surface with an increased outer diameter is provided at the object-side end of the image-rotating lens tube. The zoom tube is located between the image-rotating ball head and the stepped surface. The lens body is provided with an adjusting screw group, which includes a pair of vertically arranged adjusting screw mechanisms. The adjusting screw mechanisms are connected to the image-rotating lens group in a transmission manner.

[0013] According to the above scheme, the zoom handwheel assembly includes a zoom handwheel and a zoom screw; the zoom handwheel is located outside the scope tube and eyepiece assembly; the scope tube is provided with a zoom opening slot at a certain angle, the zoom tube is provided with a slot, the outer end of the zoom screw is connected to the zoom handwheel, and the inner end passes through the zoom opening slot and is located in the slot of the zoom tube. A zoom handwheel limit screw is provided on the inner side of the zoom handwheel. The zoom handwheel limit screw is fixed to the lens tube. An irregularly shaped limit groove is provided on the inner wall of the zoom handwheel. The outer head of the zoom handwheel limit screw is located in the irregularly shaped limit groove.

[0014] Beneficial effects The optical system described in this utility model achieves key performance improvements through core structural design. Specifically, the first aperture is aligned with the object plane of the first biconvex lens of the objective lens, enabling precise light control during the initial stage of the beam entering the objective lens, reducing stray light interference, and significantly improving image contrast. The reticle is located on the image-side focal plane (first image plane) of the objective lens, ensuring relative stability and clear imaging between the reticle and the target image during zooming, thus achieving precise aiming. During zoom adjustment, the first cemented lens of the image-switching lens moves axially to zoom, and the second cemented lens moves axially to compensate, achieving zoom from 1 to 10 times, while the positions of the first and second image planes remain unchanged during zooming. Attached Figure Description

[0015] Figure 1 This is an optical system diagram of the optical system of a 10x white light sight according to an embodiment of the present invention at 1x magnification; Figure 2 This is a dot plot of the optical system of a 10x white light sight according to an embodiment of the present invention at 1x magnification; Figure 3 This is a field curvature distortion diagram of the optical system of a 10x white light sight according to an embodiment of the present invention at 1x magnification; Figure 4 This is a chromatic aberration diagram of the optical system of a 10x white light sight according to an embodiment of the present invention at 1x magnification. Figure 5 This is a diagram of the optical system of a 10x white light sight according to an embodiment of the present invention at 10x magnification. Figure 6 This is a dot plot of the optical system of a 10x white light sight according to an embodiment of the present invention at 10x magnification; Figure 7 This is a field curvature distortion diagram of the optical system of a 10x white light sight according to an embodiment of the present invention at 10x magnification; Figure 8 This is a transverse chromatic aberration diagram of the optical system of a 10x white light sight according to an embodiment of the present invention at 10x magnification. Figure 9 This is a first-view cross-sectional view of a 10x white light sight according to an embodiment of the present invention; Figure 10 This is a second-view cross-sectional view of a 10x white light sight according to an embodiment of the present invention; Figure 11 This is a cross-sectional view of an image-rotating lens group according to an embodiment of the present invention; Figure 12 This is a cross-sectional view of the eyepiece assembly according to an embodiment of the present invention; Figure 13 This is an exploded view of a switch lighting assembly according to an embodiment of the present invention; Figure 14 This is a cross-sectional view of a switch lighting assembly according to an embodiment of the present invention; Figure 15 This is a cross-sectional view of a variable magnification handwheel assembly according to an embodiment of the present invention; Figure 16 This is a schematic diagram of the unfolded variable magnification tube according to an embodiment of the present invention; Figure 17 This is a schematic diagram of the irregularly shaped limiting groove of the variable magnification handwheel according to an embodiment of the present invention. Figure 1 ; Figure 18This is a schematic diagram of the irregularly shaped limiting groove of the variable magnification handwheel according to an embodiment of the present invention. Figure 2 .

[0016] In the diagram: 1. Objective lens group; 2. Image-rotating lens group; 3. Eyepiece group; 4. Adjustment screw group; 5. Illumination switch group; 6. Magnification handwheel group; 101. Objective lens: First biconvex lens; 102. Objective lens: Cemented lens; 103. Objective lens: Meniscus lens; 201. Reticle; 202. Front field lens, meniscus lens; 203. First cemented lens of image-switching lens; 204. Second cemented lens of image-switching lens; 205. Rear field lens, cemented lens; 206. Zoom tube; 207. Image-switching lens tube; 208. Image-switching ball head; 209. Reticle frame; 210. Washer; 211. First elastic washer; 212. Rear field lens frame; 213. Second aperture stop; 214. Sliding sleeve screw; 215. Sliding sleeve; 216. Reticle frame set screw; 217. Second aperture stop set screw; 218. Light-emitting diode; 301. Cemented eyepiece lens; 302. Biconvex eyepiece lens; 303. Eyepiece tube; 304. Second sealing ring for zoom; 305. Eyepiece frame; 501. Lens tube; 502. Switch handle; 503. Switch base; 504. Battery cover; 505. Switch positioning ring; 506. Connecting seat; 507. Brush plate; 508. Terminal block; 509. Terminal block retaining ring; 510. Battery; 511. Sealing gasket; 512. Countersunk screw; 513. Connecting screw; 514. Spring; 515. Steel ball; 516. Switch positioning ring sealing ring; 517. Connecting seat sealing ring; 518. Switch handle sealing ring; 519. Switch base sealing ring; 520. Battery cover sealing ring; 601. Magnification handwheel; 602. Ball head pressure ring; 603. Second elastic washer; 604. Ball head washer; 605. Magnification screw; 606. Image rotation ball head limit screw; 607. Magnification handwheel limit screw; 608. Eyepiece tube set screw; 609. Magnification first sealing ring. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0018] This embodiment discloses an optical system for a 10x white light sight, comprising a first aperture, an objective lens optical system, a (glass) reticle 201, an image-rotating lens optical system, and an eyepiece optical system arranged sequentially from the object side to the image side; The objective lens optical system includes a first biconvex objective lens 101, a cemented objective lens 102, and a meniscus objective lens 103 arranged sequentially from the object side to the image side; the cemented objective lens is formed by cementing a second biconvex objective lens and a biconcave objective lens arranged sequentially from the object side to the image side; the first aperture coincides with the object side of the first biconvex objective lens 101. The image-switching lens optical system includes a front field lens meniscus 202 (as a front field lens), an image-switching lens first cemented lens 203, an image-switching lens second cemented lens 204, and a rear field lens cemented lens 205 (as a rear field lens), arranged sequentially from the object side to the image side. The image-switching lens first cemented lens 203 can move axially for magnification, and the image-switching lens second cemented lens 204 can move axially for compensation. The image-switching lens first cemented lens 203 is cemented together by a second image-switching lens meniscus and a first image-switching lens biconvex lens arranged sequentially from the object side to the image side. The image-switching lens second cemented lens 204 is cemented together by a third image-switching lens meniscus and a second image-switching lens biconvex lens arranged sequentially from the object side to the image side. The rear field lens cemented lens 205 is cemented together by a second image-switching lens biconcave lens and a fourth image-switching lens arranged sequentially from the object side to the image side. The eyepiece optical system includes an eyepiece cemented lens 301 and an eyepiece biconvex lens 302 arranged sequentially from the object side to the image side; the eyepiece cemented lens 301 is formed by cementing an eyepiece biconcave lens and an eyepiece first biconvex lens arranged sequentially from the object side to the image side. The image-side focal plane of the objective lens optical system is the first image plane, which is located between the objective lens optical system and the image-rotating lens optical system. The reticle 201 is disposed at the first image plane. The object-side focal plane of the eyepiece optical system is the second image plane, which is located between the image-rotating lens optical system and the eyepiece optical system; the positions of the first and second image planes remain unchanged during zooming.

[0019] Furthermore, the optical system meets ; The focal length of the objective lens optical system. This refers to the focal length of the eyepiece optical system.

[0020] Furthermore, the air gap between the first biconvex lens 101 and the cemented lens 102 ranges from 10.524 to 15.286 mm. The air gap between the cemented objective lens 102 and the meniscus objective lens 103 ranges from 30.110 to 35.862 mm. The air gap between the objective meniscus lens 103 and the reticle 201 ranges from 8.241 to 13.389 mm. The air gap between the reticle 201 and the front field lens meniscus 202 ranges from 10.200 to 14.526 mm. The air gap between the rear field lens cemented lens 205 and the second image plane ranges from 14.226 to 20.459 mm; The air gap between the second image plane and the eyepiece cemented lens 301 ranges from 24.338 to 26.118 mm. The air gap between the eyepiece cemented lens 301 and the eyepiece biconvex lens 302 ranges from 0.399 to 0.554 mm.

[0021] Furthermore, the variable air gap between the front field lens meniscus lens 202 and the image-switching lens first cemented lens 203 is 3 to 60.784 mm; The variable air gap between the first cemented lens 203 and the second cemented lens 204 of the image-spinning lens is 0.5 to 30.9 mm; The variable air gap between the image-switching lens, the second cemented lens 204, and the rear field lens, the cemented lens 205, is 59.305–4.5 mm.

[0022] In this embodiment, the objective lens optical system uses ultra-low dispersion glass to optimize system chromatic aberration; the first cemented lens 203 (i.e., the zoom lens group) and the second cemented lens 204 (i.e., the compensation lens group) are both negative lens-positive lens cemented structures, and the negative lens material is selected as high refractive index flint material to optimize system chromatic aberration.

[0023] The parameters of the optical system of the 10x white light sight provided in this embodiment are shown in the table below:

[0024] The variable air gap data are shown in the table below:

[0025] This embodiment also provides a 10x white light sight, including a scope tube 501, a zoom handwheel group 6, and an objective lens group 1, a reticle group, an image-rotating lens group 2, and an eyepiece group 3 arranged sequentially from the object side to the image side; the objective lens group 1 includes a first aperture and an objective lens optical system, the reticle group includes a reticle 201, the image-rotating lens group 2 includes an image-rotating lens optical system, and the eyepiece group 3 includes an eyepiece optical system. Objective lens group 1, reticle group, and image-rotating lens group 2 are disposed inside the lens tube 501. Eyepiece group 3 is connected to the end of the lens tube 501. Magnification handwheel group 6 is connected to the outer periphery of the lens tube 501 and is connected to the first cemented mirror 203 and the second cemented mirror 204 of the image-rotating lens.

[0026] Furthermore, the reticle assembly includes a reticle frame 209, which is connected to one end of the image-rotating lens assembly 2. The reticle 201 is disposed within the reticle frame 209, and the reticle frame 209 is circumferentially provided with light-emitting elements for illuminating the reticle 201.

[0027] Specifically, the reticle frame 209 is threadedly connected to the rotating lens tube 207 of the steering lens assembly. When installing the reticle assembly, first rotate the reticle frame 209 to adjust the axial position of the reticle 201. After determining the axial position of the reticle 201, tighten the reticle frame 209 with the reticle frame set screw 216, and then adjust the rotation direction of the reticle 201.

[0028] In this embodiment, the light-emitting element is a light-emitting diode 218, and the reticle frame 209 is provided with eight evenly distributed waist-shaped grooves in the circumference, with the light-emitting diode 218 disposed in the waist-shaped grooves of the reticle frame 209.

[0029] Furthermore, different light-emitting bodies have different illumination brightness; the mirror tube 501 is provided with a switch illumination group 5, which includes a power supply mechanism and a gear switching mechanism. The power supply mechanism includes a battery 510, which is electrically connected to the gear switching mechanism. When the gear switching mechanism is operated, the battery 510, the light-emitting body, and the resistors with different resistance values ​​form a circuit or disconnect the circuit.

[0030] Specifically, the gear switching mechanism includes several power-on gears and at least one power-off gear. When it is switched to the power-on gear, the battery 510 and the light-emitting body form a power-on circuit, thereby illuminating the reticle 201. The illumination brightness can be changed by switching different power-on gears. When it is switched to the power-off gear, the light-emitting body is turned off.

[0031] In this embodiment, the switch lighting assembly 5 has 16 settings: 8 brightness settings and 8 power-off settings are evenly spaced. The settings can be adjusted by rotating the switch handle 502. The switch positioning ring 505 and the connecting seat 506 are fixed to the mirror body by two countersunk screws 512. The switch positioning ring 505 has 16 evenly distributed holes inside, and the end face of the switch handle 502 has four evenly distributed cylindrical bosses. When the handle is pressed to the right, the bosses lock in the holes and cannot be rotated, i.e., it is in a locked state. Pulling the switch handle 502 to the left unlocks it, allowing normal rotation. The switch handle 502 has two V-shaped sealing grooves, maintaining a seal when the handle moves left and right, and preventing slippage. Springs 514 and steel balls 515 are installed in the two symmetrical circular holes of the connecting seat 506. The switch base 503 is made of brass, which has good anti-friction properties. It has 16 evenly distributed spherical holes. When rotated to the set position, the steel ball is pressed into the spherical hole, realizing the adjustment of the position. The brush plate 507 is fixed to the connecting base 506 by four connecting screws 513. The terminal block 508 is fixed to the switch base 503 by the terminal block 508 clamp. The terminal block 508 is soldered with a negative electrode plate (connected to the negative terminal of the power supply) and a battery clip 510 (connected to the positive terminal of the power supply). Resistors of different resistance values ​​are soldered at intervals on the back of the terminal block 508. The two brushes on the brush plate 507 are electrically connected to the terminal block 508 to adjust the position when the switch handle 502 is rotated. The wire soldered on the brush plate 507 passes through the sealing gasket 511 and enters the mirror body to connect to the light-emitting diode. All parts of the switch lighting assembly that communicate with the outside are equipped with seals (as shown in the figure: switch positioning ring seal 516, connecting seat seal 517, switch handle seal 518, switch seat seal 519, and battery cover seal 520). This switch lighting assembly allows for brightness adjustment and locking, and can be rotated to different brightness levels to meet the user's varying needs. The switch handle 502 has engraved level markings for easy recording of the current brightness level. The battery cover 504 has a wrench slot, allowing for easy opening and replacement of the battery 510 using a wrench.

[0032] Furthermore, the image-switching lens group 2 includes an image-switching lens tube 207 and a zoom tube 206, with the image-switching lens tube 207 disposed within the zoom tube 206; the front field lens meniscus lens 202 is fixed within the image-switching lens tube 207, and the first cemented lens 203 and the second cemented lens 204 of the image-switching lens are respectively fixed within the zoom lens frame and the compensation lens frame, which are slidably connected to the image-switching lens and drively connected to the zoom tube 206, which is drively connected to the zoom handwheel group 6; the rear field lens cemented lens 205 is fixed within the rear field lens frame 212, which is connected to the image-side end of the image-switching lens tube 207, and the image-side end of the rear field lens frame 212 is connected to a second aperture stop 213 (in this embodiment, the second aperture stop 213 is fastened by a second aperture stop set screw 217).

[0033] Specifically, the image-rotating lens tube 207 has a slot on its side wall, and the zoom tube 206 has a zoom curve groove on its side wall corresponding to the zoom lens frame and the compensation lens frame. Both the zoom lens frame and the compensation lens frame are connected to sliding sleeve screws 214 on their sides. Sliding sleeves 215 are fitted around the sliding sleeve screws 214, and the sliding sleeves 215 are located within the slot of the image-rotating lens tube 207 and the zoom curve groove of the zoom tube 206. When the zoom handwheel assembly 6 rotates the zoom tube 206, the zoom curve groove on the zoom tube 206 drives the sliding sleeve screws 214 to move. Since the sliding sleeve screws 214 are also limited by the slot of the image-rotating lens tube 207, the sliding sleeve screws 214 drive the zoom lens frame and the compensation lens frame to move axially, thus achieving zooming and compensation.

[0034] Furthermore, an image-rotating ball head 208 is provided on the outside of the image-rotating lens tube 207, and a stepped surface with an increased outer diameter is provided on the object-side end of the image-rotating lens tube 501. The zoom tube 206 is located between the image-rotating ball head 208 and the stepped surface. The lens body is provided with an adjusting screw group 4, which includes a pair of vertically arranged adjusting screw mechanisms. The adjusting screw mechanisms are connected to the reticle frame 209 in a transmission manner.

[0035] Specifically, a washer 210 is provided between one end of the zoom tube 206 and the stepped surface of the image-rotating lens tube 501, and a first elastic washer 211 is provided between the other end of the zoom tube 206 and the image-rotating ball head 208. The stepped surfaces of the image-rotating ball head 208 and the image-rotating lens tube 207 axially limit the zoom tube 206, allowing it to rotate only. A slot is provided on the side of the image-rotating ball head 208 (the direction of the slot is parallel to the optical axis), and an image-rotating ball head limiting screw 606 is provided, one end of which is connected to the lens tube 501, and the other end is located in the slot of the image-rotating ball head 208, limiting the image-rotating ball head 208 and preventing it from rotating around the optical axis. A ball head washer 604 is provided between the rotating ball head 208 and the steering tube. A ball head pressure ring 602 is connected to the end of the zoom tube 206. A second elastic washer 603 is provided between the ball head pressure ring 602 and the rotating ball head 208. When the ball head pressure ring 602 is tightened, the ball head washer 604 and the second elastic washer 603 press the rotating ball head 208 tightly, allowing the rotating ball head 208 to rotate in a limited direction. By operating the adjusting screw mechanism, the vertical and horizontal positions of the reticle frame 209 within the scope tube 501 can be changed (at which point the rotating ball head 208 acts as the rotation fulcrum), thereby achieving adjustments to the trajectory and wind direction.

[0036] Furthermore, the eyepiece assembly 3 includes an eyepiece tube 303, an eyepiece frame 305, and an eyepiece optical system. The eyepiece frame 305 is connected to the lens tube 501 via the eyepiece tube 303. The eyepiece optical system is housed within the eyepiece frame 305. The eye-side end face of the eyepiece frame 305 is beveled, and its wall thickness gradually decreases towards the eye-side, with the thinnest part having a wall thickness of 0.95mm. The retaining ring for fixing the eyepiece optical system is located on the objective lens side. The beveled surface of the eyepiece frame 305 is designed according to the exit pupil distance, resulting in a thin-walled effect when observed by the human eye, providing a large, clear, and comfortable field of view, thus optimizing the viewing and aiming experience.

[0037] Specifically, the eyepiece tube 303 is fastened to the lens tube 501 by the eyepiece tube set screw 608.

[0038] Furthermore, the zoom handwheel assembly 6 includes a zoom handwheel 601 and a zoom screw 605; the zoom handwheel 601 is located outside the lens tube 501 and the eyepiece assembly 3; the lens tube 501 is provided with a zoom opening slot at a certain angle (214° in this embodiment, the angle is determined by the zoom curve of the optical system), the zoom tube 206 is provided with a slot, the outer end (threaded end) of the zoom screw 605 is connected to the zoom handwheel 601, and the inner end (optical rod end) passes through the zoom opening slot and is located in the slot of the zoom tube 206.

[0039] Specifically, when the zoom handwheel 601 is rotated, the zoom screw 605 rotates in the zoom slot and drives the zoom tube 206 to rotate through the slot of the zoom tube 206, thereby achieving zoom. To improve the sealing between structural components, a first zoom sealing ring 609 is provided between the zoom handwheel 601 and the lens tube 501, and a second zoom sealing ring 304 is provided between the zoom handwheel 601 and the eyepiece group 3.

[0040] Furthermore, a zoom handwheel limiting screw 607 is provided on the inner side of the zoom handwheel 601. The zoom handwheel limiting screw 607 is fixed to the lens tube 501. An irregularly shaped limiting groove is provided on the inner wall of the zoom handwheel 601. The outer head of the zoom handwheel limiting screw 607 is located in the irregularly shaped limiting groove.

[0041] Specifically, during installation, the zoom handwheel 601 is first fitted over the lens tube 501, and the zoom handwheel limiting screw 607 is fixed. Then, the zoom handwheel 601 is slid from the object side to the image side, ensuring the irregularly shaped limiting groove avoids the protruding head of the zoom handwheel limiting screw 607 during sliding. After the zoom handwheel 601 has slid into place, it is rotated to engage the head of the zoom handwheel limiting screw 607 within the irregularly shaped limiting groove. Finally, the zoom screw 605 is fixed. After installation, the zoom handwheel 601, along with the zoom handwheel limiting screw 607 and the zoom screw 605, together limit the zoom handwheel 601, thus preventing wobbling or gaps during adjustment.

[0042] The beneficial effects of applying this utility model include at least the following: 1) The distance between the glass reticle and the front and rear mirror groups is ≥8mm, which provides sufficient margin for parallax adjustment and has good manufacturability.

[0043] 2) The image quality is stable at each magnification without abrupt changes during zooming, and the aberrations are all within the tolerance requirements of the telescope system.

[0044] 3) The reticle is clear, and the parallax between high and low magnification is within 0.5 SD.

[0045] 4) This invention achieves distortion within 3% across all bands at magnification (minimum magnification 1x), ensuring undistorted images within the field of view. The small field of view provides an effect closest to naked-eye observation at 1x magnification. After illuminating the reticle center point, it can be quickly switched to red dot aiming mode.

[0046] 5) This utility model has a resolution of up to 5" at 10x magnification, which clearly presents the target details, making it easy to identify targets, observe ballistic points, and accurately shoot at long distances.

[0047] 6) By using ED glass lenses in the objective lens, the chromatic aberration of the system is greatly reduced, and the phenomenon of purple fringing at the edge of the target will not occur at high magnification.

[0048] 7) By coating the lenses with multiple layers of broadband antireflective coating, the reflectivity of each lens is reduced to below 3%, and the transmittance of the product reaches more than 85%, resulting in true-to-life imaging colors and no visual fatigue.

[0049] 8) At 1x magnification, the field of view is up to 22°, providing a wider field of view and making it easier to track fast-moving targets.

[0050] 9) Under the premise of eliminating parallax caused by human eye recognition, it can make the reticle plane coincide with the theoretical image plane, and improve the parallax correction accuracy without upper limit.

[0051] 10) The switch lighting assembly has a stable structure and is easy to use; the brightness levels and power-off levels are arranged alternately, and the switch handle can lock the level.

[0052] 11) The variable magnification handwheel assembly has a compact structure, stable magnification, and good adjustment feel. New irregular grooves and limit screws have been added to prevent handwheel wobbling or gaps during magnification adjustment.

[0053] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this utility model.

[0054] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An optical system for a 10x magnification white light sight, characterized in that, It includes a first aperture, an objective lens optical system, a reticle, an image-rotating lens optical system, and an eyepiece optical system arranged sequentially from the object side to the image side; The objective optical system includes a first biconvex objective lens, a cemented objective lens, and a meniscus objective lens arranged sequentially from the object side to the image side. The cemented objective lens is formed by cementing together a second biconvex objective lens and a biconcave objective lens arranged sequentially from the object side to the image side; the first aperture coincides with the object side of the first biconvex objective lens; The image-switching lens optical system includes a front field lens meniscus, a first image-switching lens cemented lens, a second image-switching lens cemented lens, and a rear field lens cemented lens, arranged sequentially from the object side to the image side. The first image-switching lens cemented lens can move axially for magnification, and the second image-switching lens cemented lens can move axially for compensation. The first image-switching lens cemented lens is formed by cementing the second image-switching lens meniscus and the first image-switching lens biconvex lens, arranged sequentially from the object side to the image side. The second image-switching lens cemented lens is formed by cementing the third image-switching lens meniscus and the second image-switching lens biconvex lens, arranged sequentially from the object side to the image side. The rear field lens cemented lens is formed by cementing the fourth image-switching lens meniscus, arranged sequentially from the object side to the image side. The eyepiece optical system includes an eyepiece cemented lens and an eyepiece biconvex lens arranged sequentially from the object side to the image side; the eyepiece cemented lens is formed by cementing together an eyepiece biconcave lens and an eyepiece first biconvex lens arranged sequentially from the object side to the image side. The image-side focal plane of the objective lens optical system is the first image plane, which is located between the objective lens optical system and the image-rotating lens optical system. The reticle is set at the first image plane. The object-side focal plane of the eyepiece optical system is the second image plane, which is located between the image-rotating lens optical system and the eyepiece optical system; the positions of the first and second image planes remain unchanged during zooming.

2. The optical system of the 10x magnification white light sight according to claim 1, characterized in that, Optical system meets ; The focal length of the objective lens optical system. This refers to the focal length of the eyepiece optical system.

3. The optical system of the 10x magnification white light sight according to claim 1, characterized in that, The air gap between the first biconvex lens and the cemented lens of the objective lens ranges from 10.524 to 15.286 mm. The air gap between the cemented objective lens and the meniscus objective lens ranges from 30.110 to 35.862 mm. The air gap between the meniscus objective lens and the reticle ranges from 8.241 to 13.389 mm. The air gap between the reticle and the front field lens meniscus ranges from 10.200 to 14.526 mm. The air gap between the cemented rear mirror and the second image plane ranges from 14.226 to 20.459 mm. The air gap between the second image plane and the eyepiece cemented lens ranges from 24.338 to 26.118 mm. The air gap between the cemented eyepiece and the biconvex eyepiece lens ranges from 0.399 to 0.554 mm.

4. The optical system of the 10x white light sight according to claim 1 or 3, characterized in that, The variable air gap between the front field lens (meniscus) and the image-rotating lens (first cemented lens) is 3–60.784 mm. The variable air gap between the first cemented lens and the second cemented lens of the image-switching lens is 0.5–30.9 mm; The variable air gap between the second cemented lens of the image-switching lens and the cemented lens of the rear field lens is 59.305–4.5 mm.

5. A 10x magnification white light sight, comprising the optical system of claim 1, characterized in that, It includes a microscope tube, a zoom lever assembly, and an objective lens assembly, a reticle assembly, an image-rotating lens assembly, and an eyepiece assembly arranged sequentially from the object side to the image side; The objective lens group includes a first aperture stop and an objective lens optical system, the reticle group includes a reticle, the image-rotating lens group includes an image-rotating lens optical system, and the eyepiece group includes an eyepiece optical system. The objective lens group, reticle group, and image-rotating lens group are located inside the microscope tube. The eyepiece group is connected to the end of the microscope tube. The zoom handwheel group is connected to the outer periphery of the microscope tube and is connected to the first and second image-rotating lenses in a driving connection.

6. The 10x magnification white light sight according to claim 5, characterized in that, The reticle assembly includes a reticle frame, which is connected to one end of the image-rotating lens assembly. The reticle is set inside the reticle frame, and light-emitting elements for illuminating the reticle are arranged around the reticle frame.

7. The 10x magnification white light sight according to claim 6, characterized in that, The illumination brightness of the light source is adjustable; the lens tube is equipped with a switch illumination group, which includes a power supply mechanism and a gear switching mechanism. The power supply mechanism includes a battery, which is electrically connected to the gear switching mechanism. When the gear switching mechanism is operated, the battery, the light source and resistors of different resistance values ​​form a circuit, or the circuit with the light source is broken.

8. The 10x magnification white light sight according to claim 5, characterized in that, The image-switching lens assembly includes an image-switching lens tube and a zoom tube, with the image-switching lens tube housed within the zoom tube. The front field lens, a meniscus lens, is fixed within the image-switching lens tube. The first and second cemented image-switching lenses are fixed within the zoom lens frame and the compensation lens frame, respectively. The zoom lens frame and the compensation lens frame are slidably connected to the image-switching lens and are drivenly connected to the zoom tube. The zoom tube is drivenly connected to the zoom handwheel assembly. The rear field lens, a cemented lens, is fixed within the rear field lens frame, which is connected to the image-side end of the image-switching lens tube. A second aperture stop is connected to the image-side end of the rear field lens frame.

9. The 10x magnification white light sight according to claim 6, characterized in that, An image-rotating lens tube is provided on the outside of an image-rotating ball head, and an image-rotating lens tube is provided on the object-side end with a stepped surface with an increased outer diameter. The zoom tube is located between the image-rotating ball head and the stepped surface. The lens body is provided with an adjusting screw assembly, which includes a pair of vertically arranged adjusting screw mechanisms that are connected to the image-rotating lens assembly in a transmission manner.

10. The 10x magnification white light sight according to claim 5, characterized in that, The zoom handwheel assembly includes a zoom handwheel and a zoom screw; the zoom handwheel is located outside the scope tube and eyepiece assembly; the scope tube is provided with a zoom opening slot at a certain angle, the zoom tube is provided with a slot, the outer end of the zoom screw is connected to the zoom handwheel, and the inner end passes through the zoom opening slot and is located in the slot of the zoom tube. A zoom handwheel limit screw is provided on the inner side of the zoom handwheel. The zoom handwheel limit screw is fixed to the lens tube. An irregularly shaped limit groove is provided on the inner wall of the zoom handwheel. The outer head of the zoom handwheel limit screw is located in the irregularly shaped limit groove.

Images