A large-magnification continuous zooming haze-removing lens

Abstract

The application discloses a large-magnification continuous zooming and fog penetrating lens, which comprises, in sequence along the light incidence direction, a front fixed lens group, a zooming lens group, a compensation lens group, a rear fixed lens group, a temperature focusing lens group and a filter switcher, wherein the front fixed lens group comprises a first lens and a first cemented lens group, the zooming lens group comprises a fifth lens and a second cemented lens group, the compensation lens group comprises an eighth lens and a third cemented lens group, the rear fixed lens group comprises a fourth cemented lens group, a fifth cemented lens group and a fifteenth lens, the temperature focusing lens group comprises a sixth cemented lens group, and the filter switcher comprises a filter and an anti-reflection film and is used for switching the filter and the anti-reflection film in the vertical direction of the optical axis. Through reasonable setting of lens parameters and the overall mechanical structure of the lens, electric four-variable functions of focal length, resolution compensation, aperture and fog penetration are realized, the stability is good, the response speed is fast, stray light ghosting and chromatic aberration can be reduced, the imaging quality and service life are improved, and small size and light weight are facilitated.

Description

Technical Field

[0001] This invention belongs to the field of optical lens technology, specifically relating to a high-magnification continuous zoom fog-penetrating lens. Background Technology

[0002] With the development of technology, the market demand for camera lenses that can effectively penetrate low-visibility environments such as fog and smoke, while also possessing flexible zoom capabilities, is growing. Although traditional camera lenses have made significant progress in optical zoom technology, enabling perspective shifts from wide-angle to telephoto, images often become blurry due to scattering effects in foggy or high-humidity environments, severely impacting monitoring or shooting results. Furthermore, the large size and weight of these lenses limit their use in certain specialized scenarios such as high-speed gimbals and drones. Therefore, developing a miniaturized continuous zoom lens that can provide a wide zoom range while effectively penetrating fog and maintaining high-definition imaging has become an urgent need in the industry. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by proposing a high-magnification continuous zoom lens that can achieve a maximum focal length of 7.2x, an operating temperature of -30~70℃, resolution compensation, an aperture of F4.0~6.0, and a fog-penetrating function. It features good stability and fast response during zooming, while also reducing stray light ghosting, correcting chromatic aberration, improving image quality and lifespan, and helping to reduce lens size and weight.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] This invention proposes a high-magnification continuous zoom lens for penetrating fog, comprising a front fixed lens group, a zoom lens group, a compensation lens group, a rear fixed lens group, a temperature focusing lens group, and a filter switch arranged sequentially along the light incident direction. The zoom lens group, the compensation lens group, and the temperature focusing lens group can all move along the optical axis.

[0006] The front fixed lens group includes a first lens and a first cemented lens group arranged sequentially along the incident direction of light; the zoom lens group includes a fifth lens and a second cemented lens group arranged sequentially along the incident direction of light; the compensation lens group includes an eighth lens and a third cemented lens group arranged sequentially along the incident direction of light; the rear fixed lens group includes a fourth cemented lens group, a fifth cemented lens group, and a fifteenth lens arranged sequentially along the incident direction of light; the temperature focusing lens group includes a sixth cemented lens group; and the filter switcher includes a filter and an anti-reflective filter, and is used to switch the filter and the anti-reflective filter in the direction perpendicular to the optical axis.

[0007] High-magnification continuous zoom lenses that penetrate fog also meet the following conditions:

[0008] 161.3mm≤f1≤162.3mm, -47.1mm≤f5≤-46.1mm, 74.9mm≤f8≤75.9mm,

[0009] 18.6mm≤f15≤19.6mm, 380.8mm≤fB1≤410.8mm, -49.5mm≤fB2≤-45.5mm,

[0010] 80.8mm≤fB3≤84.8mm, -305.8mm≤fB4≤-278.9mm, -23.5mm≤fB5≤-21.5mm,

[0011] -50.1mm≤fB6≤-47.6mm

[0012] Where f1 is the focal length of the first lens, f5 is the focal length of the fifth lens, f8 is the focal length of the eighth lens, f15 is the focal length of the fifteenth lens, fB1 is the focal length of the first cemented group, fB2 is the focal length of the second cemented group, fB3 is the focal length of the third cemented group, fB4 is the focal length of the fourth cemented group, fB5 is the focal length of the fifth cemented group, and fB6 is the focal length of the sixth cemented group.

[0013] Preferably, the air gap between the front fixed lens group and the zoom lens group is 9.5mm-40mm, the air gap between the zoom lens group and the compensating lens group is 1mm-61.7mm, the air gap between the compensating lens group and the rear fixed lens group is 3.2mm-33.4mm, and the air gap between the rear fixed lens group and the temperature focusing lens group is 1mm-2.6mm.

[0014] Preferably, the air gap between the first lens and the first cemented assembly is 0.2±0.05mm, the air gap between the fifth lens and the second cemented assembly is 4.85±0.05mm, the air gap between the eighth lens and the third cemented assembly is 0.15±0.05mm, the air gap between the fourth cemented assembly and the fifth cemented assembly is 8.56±0.05mm, and the air gap between the fifth cemented assembly and the fifteenth lens is 1.7±0.05mm.

[0015] Preferably, the first cemented group includes a second lens, a third lens, and a fourth lens arranged sequentially along the light incident direction; the second cemented group includes a sixth lens and a seventh lens arranged sequentially along the light incident direction; the third cemented group includes a ninth lens and a tenth lens arranged sequentially along the light incident direction; the fourth cemented group includes an eleventh lens and a twelfth lens arranged sequentially along the light incident direction; the fifth cemented group includes a thirteenth lens and a fourteenth lens arranged sequentially along the light incident direction; and the sixth cemented group includes a sixteenth lens and a seventeenth lens arranged sequentially along the light incident direction, satisfying the following conditions:

[0016] 82.3mm≤f2≤83.3mm, -61.9mm≤f3≤-60.9mm, 149.6mm≤f4≤150.6mm,

[0017] -23.5mm≤f6≤-22.5mm, 49.2mm≤f7≤50.2mm, -77.6mm≤f9≤-76.6mm,

[0018] 39.2mm≤f10≤40.2mm, 27.5mm≤f11≤28.5mm, -23.7mm≤f12≤-22.7mm,

[0019] 50.4mm≤f13≤51.4mm, -15.5mm≤f14≤-14.5mm, -15.5mm≤f16≤-14.5mm,

[0020] 25.7mm≤f17≤26.7mm

[0021] Where f2 is the focal length of the second lens, f3 is the focal length of the third lens, f4 is the focal length of the fourth lens, f6 is the focal length of the sixth lens, f7 is the focal length of the seventh lens, f9 is the focal length of the ninth lens, f10 is the focal length of the tenth lens, f11 is the focal length of the eleventh lens, f12 is the focal length of the twelfth lens, f13 is the focal length of the thirteenth lens, f14 is the focal length of the fourteenth lens, f16 is the focal length of the sixteenth lens, and f17 is the focal length of the seventeenth lens.

[0022] Preferably, the first lens, the second lens, the eighth lens, the tenth lens, the eleventh lens, the fifteenth lens, and the seventeenth lens are all biconvex lenses; the fifth lens and the ninth lens are both negative meniscus lenses; the third lens, the sixth lens, the twelfth lens, the fourteenth lens, and the sixteenth lens are all biconcave lenses; and the fourth lens, the seventh lens, and the thirteenth lens are all positive meniscus lenses.

[0023] Preferably, the high-magnification continuous zoom lens for penetrating fog also meets the following conditions:

[0024] Nd1=1.44±0.05, Vd1=94.52±0.8%; Nd2=1.62±0.05, Vd2=63.39±0.8%;

[0025] Nd3=1.88±0.05, Vd3=40.81±0.8%; Nd4=1.50±0.05, Vd4=81.61±0.8%;

[0026] Nd5=1.73±0.05, Vd5=54.69±0.8%; Nd6=1.73±0.05, Vd6=54.69±0.8%;

[0027] Nd7=1.95±0.05, Vd7=17.94±0.8%; Nd8=1.59±0.05, Vd8=68.34±0.8%;

[0028] Nd9=1.85±0.05, Vd9=23.79±0.8%; Nd 10 =1.55±0.05, Vd 10 =75.23±0.8%;

[0029] Nd 11 =1.51±0.05, Vd 11 =60.64±0.8%; Nd 12 =1.73±0.05, Vd 12 =51.49±0.8%;

[0030] Nd 13 =1.92±0.05, Vd 13 =20.88±0.8%; Nd 14 =1.80±0.05, Vd 14 =46.58±0.8%;

[0031] Nd 15 =1.53±0.05, Vd 15 =48.84±0.8%; Nd 16 =1.80±0.05, Vd 16 =46.58±0.8%;

[0032] Nd 17 =1.52±0.05, Vd 17 =56.80±0.8%

[0033] Among them, Nd1~Nd 17 These correspond sequentially to the refractive indices of the first to the seventeenth lenses, Vd1~Vd 17 These correspond to the dispersion coefficients of the first to the seventeenth lenses, respectively.

[0034] Preferably, the high-magnification continuous zoom lens for penetrating fog also includes a front group lens barrel, an electric zoom compensation mechanism, a rear group lens barrel, an electric focusing mechanism, a rear group transition lens barrel, and a camera interface, wherein:

[0035] The front group of lenses has several first straight slots parallel to the optical axis, and the front fixed lens group is built into the front group of lenses.

[0036] The electric zoom compensation mechanism includes a zoom compensation ring, a zoom moving lens barrel, a compensation moving lens barrel, a first drive mechanism, and several zoom compensation guide pin assemblies corresponding one-to-one with the first straight slot, wherein:

[0037] The zoom compensation ring is coaxially sleeved outside the front group of lens barrels, and the ring wall has several zoom curve grooves and several compensation curve grooves.

[0038] The zoom telescope tube and the compensation telescope tube are built into the front group telescope tube, and the zoom telescope group is built into the zoom telescope tube, and the compensation telescope group is built into the compensation telescope tube.

[0039] The zoom compensation guide pin assembly includes a first guide pin, which is connected to a zoom moving lens barrel or a compensation moving lens barrel. The first guide pins on the zoom moving lens barrel pass through a first straight groove and a zoom curve groove in sequence, and the first guide pins on the compensation moving lens barrel pass through a first straight groove and a compensation curve groove in sequence.

[0040] The first drive mechanism is used to drive the zoom compensation to rotate around the axis, thereby driving the zoom moving lens tube and the compensation moving lens tube to move along the optical axis.

[0041] The rear group of mirror tubes is connected to the front group of mirror tubes. The rear fixed mirror group is built into the rear group of mirror tubes. The annular wall of the rear group of mirror tubes is also provided with several second straight grooves parallel to the optical axis.

[0042] The electric focusing mechanism includes a focusing ring, a focusing moving lens barrel, a second drive mechanism, and several focusing guide pin assemblies, wherein:

[0043] The focusing ring is coaxially fitted outside the rear lens barrel, and the ring wall has several focusing curve grooves.

[0044] The focusing telescope tube is built into the rear telescope tube, and the temperature focusing lens group is built into the focusing telescope tube.

[0045] The focusing guide pin assembly includes a second guide pin, which is connected to the focusing moving lens barrel and passes through the second straight groove and the focusing curve groove in sequence.

[0046] The second drive mechanism is used to drive the focusing lens to rotate around the axis, thereby moving the focusing lens barrel along the optical axis.

[0047] The rear transition lens tube is connected to the rear lens tube, and the filter switcher is built into the rear transition lens tube.

[0048] The camera interface connects to the rear transition lens barrel and is used to connect the camera.

[0049] Preferably, the first driving mechanism includes a first potentiometer, a first motor, a first motor gear, a first potentiometer gear, and a zoom compensation gear. The zoom compensation gear is coaxially connected to the zoom compensation ring. Both the first motor gear and the first potentiometer gear mesh with the zoom compensation gear. Both the first motor and the first potentiometer are connected to the front lens barrel. The first motor drives the first motor gear to rotate, thereby causing the zoom compensation ring and the first potentiometer gear to rotate, which in turn drives the zoom lens group and the compensation lens group to move along the optical axis to achieve zoom. The first potentiometer is used to detect the amount of rotation of the first potentiometer gear to form a first resistance signal and send it to the camera to determine the lens focal length, or to receive the first resistance signal sent by the camera to drive the first motor to achieve zoom.

[0050] The second drive mechanism includes a second potentiometer, a second motor, a second motor gear, a second potentiometer gear, and a focusing gear. The focusing gear is coaxially connected to the focusing ring. Both the second motor gear and the second potentiometer gear mesh with the focusing gear. Both the second potentiometer and the second motor are connected to the rear lens barrel. The second motor drives the second motor gear to rotate, thereby causing the focusing ring and the second potentiometer gear to rotate, which in turn drives the temperature focusing lens group to move along the optical axis to achieve focusing. The second potentiometer is used to detect the amount of rotation of the second potentiometer gear to form a second resistance signal and send it to the camera to determine the amount of lens defocus, or to receive the second resistance signal sent by the camera to drive the second motor to achieve focusing.

[0051] The zoom compensation guide pin assembly also includes two micro bearings and at least one bearing washer sleeved on the first guide pin. The bearing washer is located between the two micro bearings, and the micro bearing closer to the zoom moving tube is slidably connected to the corresponding first straight groove, while the micro bearing farther away from the zoom moving tube is slidably connected to the corresponding zoom curve groove or compensation curve groove.

[0052] The focusing guide pin assembly also includes a focusing guide pin sleeve, which is coaxially sleeved on the second guide pin and forms a rotatable connection. The focusing guide pin sleeve is also slidably connected to the corresponding second straight groove and focusing curve groove.

[0053] Several ball bearings are also provided between the zoom compensation ring and the adjacent ring wall of the front group lens barrel.

[0054] Preferably, the high-magnification continuous zoom lens for fog penetration also includes a variable aperture, which is located between the compensating lens group and the rear fixed lens group. The air gap between the compensating lens group and the variable aperture is 3mm-33.2mm, and the air gap between the variable aperture and the rear fixed lens group is 0.1mm-0.3mm.

[0055] Preferably, each lens satisfies R < 0.3% in the λ = 500nm~1000nm wavelength band; the antireflective film satisfies T ≤ 0.5% in the λ < 850nm wavelength band and T > 95% in the λ = 850nm~1000nm wavelength band; the filter satisfies T > 95% in the λ = 550nm~750nm wavelength band and T < 0.7% in the λ = 850nm~1000nm wavelength band, where λ is wavelength, R is reflectivity, and T is transmittance.

[0056] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0057] This lens features a motorized four-way variable zoom capability, including a maximum focal length of 7.2x, an operating temperature range of -30 to 70°C, resolution compensation, an aperture of F4.0 to 6.0, and fog-penetrating function. Specifically, the lens achieves the following specifications: focal length: 50mm ~ 360mm; maximum image height: φ18.8mm; aperture: F4.0 ~ 6.0; operating wavelength: 500 ~ 1000nm; lens dimensions: 200mm × φ71mm. While achieving high light throughput and a large target area, it reduces stray light and ghosting, corrects chromatic aberration, improves image quality and lifespan, and facilitates a reduction in lens size and weight. It exhibits good stability and fast response during zooming, enabling it to search for and track targets at both near and far distances. It can be applied to demanding scenarios such as high-end surveillance, aviation and maritime applications, and forest fire prevention, making it suitable for a wide range of applications. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the structure of the high-magnification continuous zoom fog-penetrating lens of the present invention;

[0059] Figure 2 This is a three-dimensional view of the assembled high-magnification continuous zoom fog-penetrating lens of the present invention;

[0060] Figure 3 For the present invention Figure 2 The main view;

[0061] Figure 4 For the present invention Figure 2 Top view;

[0062] Figure 5 For the present invention Figure 3 Sectional view AA;

[0063] Figure 6 For the present invention Figure 5 A magnified view of a portion of the image, C;

[0064] Figure 7 This is a perspective view of the variable magnification compensation ring of the present invention;

[0065] Figure 8 This is a development view of the outer circle of the variable magnification compensation ring of the present invention.

[0066] Explanation of reference numerals in the attached diagram: 11. Front fixed lens group; 12. Zoom lens group; 13. Compensation lens group; 14. Variable aperture; 15. Rear fixed lens group; 16. Temperature focusing lens group; 17. Filter switcher; Sensor; 101. First lens; 102. Second lens; 103. Third lens; 104. Fourth lens; 105. Fifth lens; 106. Sixth lens; 107. Seventh lens; 108. Eighth lens; 109. Ninth lens; 110. Tenth lens; 111. Eleventh lens; 11 2. Twelfth lens; 113. Thirteenth lens; 114. Fourteenth lens; 115. Fifteenth lens; 116. Sixteenth lens; 117. Seventeenth lens; B1. First cemented group; B2. Second cemented group; B3. Third cemented group; B4. Fourth cemented group; B5. Fifth cemented group; B6. Sixth cemented group; 201. First spacer; 202. Second spacer; 203. Third spacer; 204. Fourth spacer; 301. First retaining ring; 302. Second retaining ring; 303. Third retaining ring; 304. Fourth retaining ring; 305. Fifth pressure ring; 306. Sixth pressure ring; 401. Front group lens barrel; 402. Zoom compensation ring; 403. Rear group lens barrel; 404. Focusing ring; 405. Rear group transition lens barrel; 406. Camera interface; 407. Zoom moving lens barrel; 408. Compensation moving lens barrel; 409. Focusing moving lens barrel; 410. Base; 411. Mount; 412. First motor mount; 413. Second motor mount; 4021. Zoom curve groove; 4022. Compensation curve groove; 501. First potentiometer; 502. Second potentiometer ; 503, First motor; 504, Second motor; 505, Front group optocoupler element; 506, Rear group optocoupler element; 61, Ball bearing; 62, Magnification compensation guide pin assembly; 621, Miniature bearing; 622, First guide pin; 623, Bearing washer; 63, Focusing guide pin assembly; 631, Second guide pin; 632, Focusing guide pin sleeve; 701, First motor gear; 702, Second motor gear; 703, First potentiometer gear; 704, Second potentiometer gear; 801, Front group optocoupler stop block; 802, Rear group optocoupler stop block. Detailed Implementation

[0067] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0068] It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or there may be an intervening component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application.

[0069] This application proposes a lens design with high-magnification electric control continuous zoom and fog-penetrating function. It adopts optical glass material with high refractive index and low dispersion coefficient combined with a precision mechanical structure to achieve stability and fast response during zooming. The overall quality and size of the lens are improved compared with similar products on the market, thereby meeting the demanding requirements of various application scenarios such as high-end surveillance, aviation and maritime, and forest fire prevention.

[0070] like Figure 1-8 As shown, a high-magnification continuous zoom lens for penetrating fog includes a front fixed lens group 11, a zoom lens group 12, a compensation lens group 13, a rear fixed lens group 15, a temperature focusing lens group 16, and a filter switcher 17 arranged sequentially along the light incident direction. The zoom lens group 12, the compensation lens group 13, and the temperature focusing lens group 16 can all move along the optical axis.

[0071] The front fixed lens group 11 includes a first lens 101 and a first cemented group B1 arranged sequentially along the light incident direction; the zoom lens group 12 includes a fifth lens 105 and a second cemented group B2 arranged sequentially along the light incident direction; the compensation lens group 13 includes an eighth lens 108 and a third cemented group B3 arranged sequentially along the light incident direction; the rear fixed lens group 15 includes a fourth cemented group B4, a fifth cemented group B5 and a fifteenth lens 115 arranged sequentially along the light incident direction; the temperature focusing lens group 16 includes a sixth cemented group B6; and the filter switcher 17 includes a filter and an anti-reflective filter, and is used to switch the filter and the anti-reflective filter in the direction perpendicular to the optical axis.

[0072] High-magnification continuous zoom lenses that penetrate fog also meet the following conditions:

[0073] 161.3mm≤f1≤162.3mm, -47.1mm≤f5≤-46.1mm, 74.9mm≤f8≤75.9mm,

[0074] 18.6mm≤f15≤19.6mm, 380.8mm≤fB1≤410.8mm, -49.5mm≤fB2≤-45.5mm,

[0075] 80.8mm≤fB3≤84.8mm, -305.8mm≤fB4≤-278.9mm, -23.5mm≤fB5≤-21.5mm,

[0076] -50.1mm≤fB6≤-47.6mm

[0077] Wherein, f1 is the focal length of the first lens 101, f5 is the focal length of the fifth lens 105, f8 is the focal length of the eighth lens 108, f15 is the focal length of the fifteenth lens 115, fB1 is the focal length of the first cemented group B1, fB2 is the focal length of the second cemented group B2, fB3 is the focal length of the third cemented group B3, fB4 is the focal length of the fourth cemented group B4, fB5 is the focal length of the fifth cemented group B5, and fB6 is the focal length of the sixth cemented group B6.

[0078] like Figure 1 As shown, light sequentially passes through the front fixed lens group 11, the zoom lens group 12, the compensation lens group 13, the variable aperture 14, the rear fixed lens group 15, the temperature focusing lens group 16, and the filter switcher 17 to reach the image sensor (such as one located in an external camera) for imaging. The filter switcher 17 switches between filters and anti-reflective films to select the defogging function. The filter switcher 17 is a prior art structure well-known to those skilled in the art, used to switch between filters, anti-reflective films, etc. The filters and anti-reflective films can be selected according to actual needs, and will not be described in detail here.

[0079] In one embodiment, the air gap between the front fixed lens group 11 and the zoom lens group 12 is 9.5mm-40mm, the air gap between the zoom lens group 12 and the compensation lens group 13 is 1mm-61.7mm, the air gap between the compensation lens group 13 and the rear fixed lens group 15 is 3.2mm-33.4mm, and the air gap between the rear fixed lens group 15 and the temperature focusing lens group 16 is 1mm-2.6mm.

[0080] In one embodiment, the air gap between the first lens 101 and the first cemented group B1 is 0.2±0.05mm, the air gap between the fifth lens 105 and the second cemented group B2 is 4.85±0.05mm, the air gap between the eighth lens 108 and the third cemented group B3 is 0.15±0.05mm, the air gap between the fourth cemented group B4 and the fifth cemented group B5 is 8.56±0.05mm, and the air gap between the fifth cemented group B5 and the fifteenth lens 115 is 1.7±0.05mm.

[0081] In one embodiment, the first cemented group B1 includes a second lens 102, a third lens 103, and a fourth lens 104 arranged sequentially along the light incident direction; the second cemented group B2 includes a sixth lens 106 and a seventh lens 107 arranged sequentially along the light incident direction; the third cemented group B3 includes a ninth lens 109 and a tenth lens 110 arranged sequentially along the light incident direction; the fourth cemented group B4 includes an eleventh lens 111 and a twelfth lens 112 arranged sequentially along the light incident direction; the fifth cemented group B5 includes a thirteenth lens 113 and a fourteenth lens 114 arranged sequentially along the light incident direction; and the sixth cemented group B6 includes a sixteenth lens 116 and a seventeenth lens 117 arranged sequentially along the light incident direction, and satisfies the following condition:

[0082] 82.3mm≤f2≤83.3mm, -61.9mm≤f3≤-60.9mm, 149.6mm≤f4≤150.6mm,

[0083] -23.5mm≤f6≤-22.5mm, 49.2mm≤f7≤50.2mm, -77.6mm≤f9≤-76.6mm,

[0084] 39.2mm≤f10≤40.2mm, 27.5mm≤f11≤28.5mm, -23.7mm≤f12≤-22.7mm,

[0085] 50.4mm≤f13≤51.4mm, -15.5mm≤f14≤-14.5mm, -15.5mm≤f16≤-14.5mm,

[0086] 25.7mm≤f17≤26.7mm

[0087] Wherein, f2 is the focal length of the second lens 102, f3 is the focal length of the third lens 103, f4 is the focal length of the fourth lens 104, f6 is the focal length of the sixth lens 106, f7 is the focal length of the seventh lens 107, f9 is the focal length of the ninth lens 109, f10 is the focal length of the tenth lens 110, f11 is the focal length of the eleventh lens 111, f12 is the focal length of the twelfth lens 112, f13 is the focal length of the thirteenth lens 113, f14 is the focal length of the fourteenth lens 114, f16 is the focal length of the sixteenth lens 116, and f17 is the focal length of the seventeenth lens 117.

[0088] In one embodiment, the first lens 101, the second lens 102, the eighth lens 108, the tenth lens 110, the eleventh lens 111, the fifteenth lens 115, and the seventeenth lens 117 are all biconvex lenses; the fifth lens 105 and the ninth lens 109 are both negative meniscus lenses; the third lens 103, the sixth lens 106, the twelfth lens 112, the fourteenth lens 114, and the sixteenth lens 116 are all biconcave lenses; and the fourth lens 104, the seventh lens 107, and the thirteenth lens 113 are all positive meniscus lenses.

[0089] In one embodiment, the high-magnification continuous zoom fog-penetrating lens also satisfies the following condition:

[0090] Nd1=1.44±0.05, Vd1=94.52±0.8%; Nd2=1.62±0.05, Vd2=63.39±0.8%;

[0091] Nd3=1.88±0.05, Vd3=40.81±0.8%; Nd4=1.50±0.05, Vd4=81.61±0.8%;

[0092] Nd5=1.73±0.05, Vd5=54.69±0.8%; Nd6=1.73±0.05, Vd6=54.69±0.8%;

[0093] Nd7=1.95±0.05, Vd7=17.94±0.8%; Nd8=1.59±0.05, Vd8=68.34±0.8%;

[0094] Nd9=1.85±0.05, Vd9=23.79±0.8%; Nd 10 =1.55±0.05, Vd 10 =75.23±0.8%;

[0095] Nd 11 =1.51±0.05, Vd 11 =60.64±0.8%; Nd 12 =1.73±0.05, Vd 12 =51.49±0.8%;

[0096] Nd 13 =1.92±0.05, Vd 13 =20.88±0.8%; Nd 14 =1.80±0.05, Vd 14 =46.58±0.8%;

[0097] Nd 15 =1.53±0.05, Vd 15=48.84±0.8%; Nd 16 =1.80±0.05, Vd 16 =46.58±0.8%;

[0098] Nd 17 =1.52±0.05, Vd 17 =56.80±0.8%

[0099] Among them, Nd1~Nd 17 The refractive indices Vd1 to Vd1 correspond sequentially to those of the first lens 101 to the seventeenth lens 117. 17 These correspond to the dispersion coefficients of the first lens 101 to the seventeenth lens 117, respectively.

[0100] In one embodiment, the high-magnification continuous zoom fog-penetrating lens further includes a front group lens barrel 401, an electric zoom compensation mechanism, a rear group lens barrel 403, an electric focusing mechanism, a rear group transition lens barrel 405, and a camera interface 406, wherein:

[0101] The front group lens tube 401 has several first straight slots parallel to the optical axis, and the front fixed lens group 11 is built into the front group lens tube 401.

[0102] The electric zoom compensation mechanism includes a zoom compensation ring 402, a zoom moving lens barrel 407, a compensation moving lens barrel 408, a first drive mechanism, and several zoom compensation guide pin assemblies 62 corresponding one-to-one with the first straight slot, wherein:

[0103] The zoom compensation ring 402 is coaxially sleeved outside the front group lens barrel 401, and the ring wall is provided with several zoom curve grooves 4021 and several compensation curve grooves 4022.

[0104] The zoom telescopic tube 407 and the compensation telescopic tube 408 are built into the front group telescopic tube 401, and the zoom lens group 12 is built into the zoom telescopic tube 407, and the compensation lens group 13 is built into the compensation telescopic tube 408.

[0105] The zoom compensation guide pin assembly 62 includes a first guide pin 622, which is connected to the zoom moving lens barrel 407 or the compensation moving lens barrel 408. The first guide pin 622 on the zoom moving lens barrel 407 passes through the first straight groove and the zoom curve groove 4021 in sequence, and the first guide pin 622 on the compensation moving lens barrel 408 passes through the first straight groove and the compensation curve groove 4022 in sequence.

[0106] The first driving mechanism is used to drive the zoom compensation ring 402 to rotate around the axis, thereby driving the zoom moving lens tube 407 and the compensation moving lens tube 408 to move along the optical axis.

[0107] The rear group lens tube 403 is connected to the front group lens tube 401. The rear fixed lens group 15 is built into the rear group lens tube 403. The annular wall of the rear group lens tube 403 is also provided with several second straight grooves parallel to the optical axis.

[0108] The electric focusing mechanism includes a focusing ring 404, a focusing moving lens barrel 409, a second drive mechanism, and several focusing guide pin assemblies 63, wherein:

[0109] The focusing ring 404 is coaxially sleeved outside the rear lens barrel 403, and the ring wall has several focusing curve grooves.

[0110] The focusing telescope tube 409 is built into the rear telescope tube 403, and the temperature focusing lens group 16 is built into the focusing telescope tube 409.

[0111] The focusing guide pin assembly 63 includes a second guide pin 631, which is connected to the focusing moving lens barrel 409 and passes through the second straight groove and the focusing curve groove in sequence.

[0112] The second drive mechanism is used to drive the focusing ring 404 to rotate around the axis, thereby driving the focusing moving lens barrel 409 to move along the optical axis;

[0113] The rear transition lens tube 405 is connected to the rear transition lens tube 403, and the filter switcher 17 is built into the rear transition lens tube 405.

[0114] The camera interface 406 connects to the rear transition lens barrel 405 and is used to connect the camera.

[0115] Among them, such as Figure 7 , 8 The figures shown correspond to the structural diagram and unfolded diagram of the zoom compensation ring 402, respectively. Figure 8 The height of the zoom curve groove 4021 along the optical axis is 30.5mm, which meets the travel range of the zoom lens group 12 in the optical design; the height of the compensation curve groove 4022 along the optical axis is 30.2mm, which meets the travel range of the compensation lens group 13 in the optical design; the travel difference between the zoom curve groove 4021 and the compensation curve groove 4022 is 1mm~61.7mm, which meets the air gap between the zoom lens group 12 and the compensation lens group 13 in the optical design; the unfolding angle of the zoom curve groove 4021 and the compensation curve groove 4022 is 140°, which can effectively reduce the pressure angle of the zoom curve groove 4021 and the compensation curve groove 4022, reduce the displacement resistance of the zoom compensation guide pin assembly 62, and make the zoom process smooth and without jamming.

[0116] The first drive mechanism and the second drive mechanism are respectively connected to the front group lens tube 401 and the rear group lens tube 403, and can be directly connected or connected via an adapter, such as... Figure 2As shown, the adapter includes a base 410, a fixed base 411, a first motor frame 412, and a second motor frame 413. The fixed base 411 is connected to the base 410, the first motor frame 412 and the second motor frame 413 are connected to the fixed base 411, the first drive mechanism is connected to the first motor frame 412, and the second drive mechanism is connected to the second motor frame 413. The adapter formed by the base 410, the fixed base 411, the first motor frame 412, and the second motor frame 413 can also be an integral structure.

[0117] In one embodiment, the first driving mechanism includes a first potentiometer 501, a first motor 503, a first motor gear 701, a first potentiometer gear 703, and a zoom compensation gear. The zoom compensation gear is coaxially connected to the zoom compensation ring 402. The first motor gear 701 and the first potentiometer gear 703 are both meshed with the zoom compensation gear. The first motor 503 and the first potentiometer 501 are both connected to the front lens barrel 401. The first motor 503 drives the first motor gear 701 to rotate, thereby driving the zoom compensation ring 402 and the first potentiometer gear 703 to rotate, thereby driving the zoom lens group 12 and the compensation lens group 13 to move along the optical axis to achieve zoom. The first potentiometer 501 is used to detect the amount of rotation of the first potentiometer gear 703 to form a first resistance signal and send it to the camera to determine the lens focal length, or to receive the first resistance signal sent by the camera to drive the first motor 503 to achieve zoom.

[0118] The second drive mechanism includes a second potentiometer 502, a second motor 504, a second motor gear 702, a second potentiometer gear 704, and a focusing gear. The focusing gear is coaxially connected to the focusing ring 404. The second motor gear 702 and the second potentiometer gear 704 are both meshed with the focusing gear. The second potentiometer 502 and the second motor 504 are both connected to the rear lens barrel 403. The second motor 504 drives the second motor gear 702 to rotate, thereby driving the focusing ring 404 and the second potentiometer gear 704 to rotate, thereby driving the temperature focusing lens group 16 to move along the optical axis to achieve focusing. The second potentiometer 502 is used to detect the amount of rotation of the second potentiometer gear 704 to form a second resistance signal and send it to the camera to determine the amount of lens defocus, or to receive the second resistance signal sent by the camera to drive the second motor 504 to achieve focusing.

[0119] The zoom compensation guide pin assembly 62 also includes two miniature bearings 621 and at least one bearing washer 623 sleeved on the first guide pin 622. The bearing washer 623 is located between the two miniature bearings 621, and the miniature bearing 621 closer to the zoom moving lens barrel 407 is slidably connected to the corresponding first straight groove, while the miniature bearing 621 farther away from the zoom moving lens barrel 407 is slidably connected to the corresponding zoom curve groove 4021 or compensation curve groove 4022.

[0120] The focusing guide pin assembly 63 also includes a focusing guide pin sleeve 632, which is coaxially sleeved on the second guide pin 631 and forms a rotatable connection. The focusing guide pin sleeve 632 is also slidably connected to the corresponding second straight groove and focusing curve groove.

[0121] Several ball bearings 61 are also provided between the adjacent ring walls of the zoom compensation ring 402 and the front group lens barrel 401.

[0122] Among them, the high-magnification continuous zoom fog-penetrating lens can achieve electric continuous zoom and focusing, with fast response speed, smooth zoom, and long service life.

[0123] It should be noted that if this application discloses or relates to components that are fixedly connected to each other, then unless otherwise stated, a fixed connection can be understood as a detachable fixed connection, such as one using bolts or screws, or a non-detachable fixed connection, such as one using riveting or adhesive. Furthermore, any component provided in this application can be a component composed of multiple individual parts, or a part machined as a single piece.

[0124] In one embodiment, the high-magnification continuous zoom lens for fog-penetrating also includes a variable aperture 14, which is located between the compensating lens group 13 and the rear fixed lens group 15. The air gap between the compensating lens group 13 and the variable aperture 14 is 3mm-33.2mm, and the air gap between the variable aperture 14 and the rear fixed lens group 15 is 0.1mm-0.3mm. The variable aperture 14 is a prior art structure well known to those skilled in the art, used to adjust the aperture size of the lens, and will not be described in detail here.

[0125] In one embodiment, each lens satisfies R < 0.3% in the λ = 500nm~1000nm wavelength band; the antireflective film satisfies T ≤ 0.5% in the λ < 850nm wavelength band and T > 95% in the λ = 850nm~1000nm wavelength band; the filter satisfies T > 95% in the λ = 550nm~750nm wavelength band and T < 0.7% in the λ = 850nm~1000nm wavelength band, where λ is the wavelength, R is the reflectivity, and T is the transmittance.

[0126] The filter switcher 17 controls the switching between the filter and the anti-reflective coating perpendicular to the optical axis. The filter has the function of blocking light transmission in the wavelength range of 850nm to 1000nm. When the lens does not require defogging function, the filter switcher 17 switches the filter to work in the optical path. The anti-reflective coating has the function of blocking light transmission in the wavelength range of less than 850nm and enhancing the transmission of light in the wavelength range of 850nm to 1000nm. When the lens requires defogging function, the filter switcher 17 switches the anti-reflective coating to work in the optical path. It can meet the requirements of working wavelengths from 500nm to 1000nm and helps to reduce coating costs while meeting the overall light transmittance of the lens.

[0127] The following detailed description is provided through specific embodiments.

[0128] In this embodiment, the high-magnification continuous zoom fog-penetrating lens includes a front fixed lens group 11, a zoom lens group 12, a compensation lens group 13, a rear fixed lens group 15, a temperature focusing lens group 16, and a filter switcher 17, as well as a front group lens barrel 401, an electric zoom compensation mechanism, a rear group lens barrel 403, an electric focusing mechanism, a rear group transition lens barrel 405, and a camera interface 406. Specifically, the front fixed lens group 11 includes a first lens 101, a second lens 102, a third lens 103, and a fourth lens 104; the zoom lens group 12 includes a fifth lens 105, a sixth lens 106, and a seventh lens 107; the compensation lens group 13 includes an eighth lens 108, a ninth lens 109, and a tenth lens 110; the rear fixed lens group 15 includes an eleventh lens 111, a twelfth lens 112, a thirteenth lens 113, a fourteenth lens 114, and a fifteenth lens 115; and the temperature focusing lens group includes a sixteenth lens 116 and a seventeenth lens 117. Lenses 101 through 1717 are arranged sequentially along the optical axis. Lenses 101, 102, 108, 110, 111, 115, and 117 are all biconvex lenses; lenses 105 and 109 are negative meniscus lenses; lenses 103, 106, 112, 114, and 116 are all biconcave lenses; and lenses 104, 107, and 113 are positive meniscus lenses.

[0129] like Figure 2-5As shown, the front fixed lens group 11, the zoom moving lens tube 407, and the compensation moving lens tube 408 are located inside the front group lens tube 401. The zoom lens group 12 is located inside the zoom moving lens tube 407. The compensation lens group 13 is located inside the compensation moving lens tube 408. The zoom compensation ring 402 is coaxially sleeved outside the front group lens tube 401. The variable aperture 14, the rear fixed lens group 15, and the focusing moving lens tube 409 are located inside the rear group lens tube 403. The focusing ring 404 is coaxially sleeved outside the rear group lens tube 403. The temperature focusing lens group 16 is located inside the focusing moving lens tube 409. The filter switcher 17 is located inside the rear group transition lens tube 405. The camera connected to the camera interface 406 is equipped with a photosensitive chip (Sensor). In actual assembly, the high-magnification continuous zoom fog-penetrating lens can also be adapted to have several spacers and pressure rings. For example, in this embodiment, it includes a first spacer 201, a second spacer 202, a third spacer 203, a fourth spacer 204, a first pressure ring 301, a second pressure ring 302, a third pressure ring 303, a fourth pressure ring 304, a fifth pressure ring 305, and a sixth pressure ring 306. The first spacer 201 is located between the first lens 101 and the second lens 102, the second spacer 202 is located between the eighth lens 108 and the ninth lens 109, the third spacer 203 is located between the twelfth lens 112 and the thirteenth lens 113, and the fourth spacer 204 is located between the fourteenth lens 114 and the fifteenth lens 115. The first pressure ring 301 is connected to the front group lens barrel 401 and is used to press and fix the first lens 101. The second pressure ring 302 is connected to the zoom moving lens barrel 407 and is used to press and fix the fifth lens 105. The third pressure ring 303 is connected to the compensation moving lens barrel 408 and is used to press and fix the third cemented assembly B3. The fifth pressure ring 305 is connected to the rear group lens barrel 403 and is used to press and fix the fourth cemented assembly B4. The sixth pressure ring 306 is connected to the focusing moving lens barrel 409 and is used to press and fix the sixth cemented assembly B6. The zoom compensation ring 402 has several balls 61 at both ends to reduce sliding friction and jamming, ensuring smooth operation and long service life. The end of the zoom compensation ring 402 near the rear lens barrel 403 is also pressed by a fourth pressure ring 304 sleeved on the front lens barrel 401. The balls 61 form a rolling bearing structure, which changes the sliding friction of the zoom compensation ring 402 when it rotates on the front lens barrel 401 into rolling friction, thereby reducing the friction during zooming.

[0130] like Figure 7 , 8As shown, the zoom compensation ring 402 is milled with zoom curve grooves 4021 and compensation curve grooves 4022 according to the optical zoom motion equation. Then, the zoom compensation guide pin assembly 62, composed of a miniature bearing 621, a first guide pin 622, and a bearing washer 623, is fixed on the corresponding zoom moving lens barrel 407 and compensation moving lens barrel 408. The first motor gear 701 is connected to the first motor 503, and the first potentiometer gear 703 is connected to the first potentiometer 501. Both the first motor gear 701 and the first potentiometer gear 703 mesh with the zoom compensation gear on the zoom compensation ring 402. When the first motor 503 is energized and rotates, it drives the zoom compensation ring 402 and the first potentiometer gear 703 to rotate synchronously. In turn, the zoom compensation guide pin assembly 62 on the zoom moving lens barrel 407 cooperates with the zoom curve groove 4021 and the first straight groove parallel to the optical axis on the front group lens barrel 401 to drive the zoom moving lens barrel 407 to perform linear reciprocating motion. The zoom compensation guide pin assembly 62 on the compensation moving lens barrel 408 cooperates with the compensation curve groove 4022 and the first straight groove parallel to the optical axis on the front group lens barrel 401 to drive the compensation moving lens barrel 408 to perform linear reciprocating motion. One zoom compensation guide pin assembly 62 corresponds to one first straight groove. The two miniature bearings 621 on the zoom compensation guide pin assembly 62 respectively mate with the first straight groove on the front group lens barrel 401 and the groove on the zoom compensation ring 402. Specifically, in this embodiment, there are four zoom compensation guide pin assemblies 62, four first straight grooves on the front group lens barrel 401, and two zoom curve grooves 4021 and two compensation curve grooves 4022 on the zoom compensation ring 402. One first guide pin 622 can pass through one first straight groove and one of the grooves of the zoom curve groove 4021 and the compensation curve groove 4022. Then, the two miniature bearings 621 on the first guide pin 622 respectively mate with the corresponding first straight groove and the groove on the zoom compensation ring 402. The fit clearance between the miniature bearings 621 and the front group lens barrel 401 or the zoom compensation ring 402 can be further adjusted through precision machining to reduce friction and movement during operation, ensuring smooth and uninterrupted movement of the zoom and compensation process of the electric zoom compensation mechanism. In this way, the first motor 503 enables the zoom lens group 12 and the compensation lens group 13 to move linearly according to the optical zoom equation, thereby realizing the continuously variable focal length function. When the focal length of the lens changes, the zoom compensation ring 402 engages and drives the first potentiometer gear 703 to rotate. The change in resistance signal on the first potentiometer 501 is transmitted to the camera, thereby realizing the recording function of the change in the lens focal length value; conversely, the camera can realize the function of controlling the lens focal length value by outputting a resistance signal.

[0131] For the electric focusing mechanism, the focusing ring 404 is mounted on the rear group lens barrel 403 and pressed against it by the rear group transition lens barrel 405. The focusing ring 404 is milled with several focusing curve grooves according to optical requirements. The focusing guide pin assembly 63 is fixed on the focusing moving lens barrel 409. The second motor gear 702 is connected to the second motor 504, and the second potentiometer gear 704 is connected to the second potentiometer 502. Both the second motor gear 702 and the second potentiometer gear 704 mesh with the focusing gear on the focusing ring 404. When the second motor 504 is energized and rotates, it drives the focusing ring 404 and the second potentiometer gear 704 to rotate synchronously. In turn, the focusing guide pin assembly 63 on the focusing moving lens barrel 409, in conjunction with the focusing curve grooves and the second straight groove parallel to the optical axis on the rear group lens barrel 403, drives the focusing moving lens barrel 409 to perform linear reciprocating motion. In this way, the second motor 504 enables the temperature-focusing lens group 16 to move linearly according to the optical zoom equation, thus achieving remote electric control of lens refocusing to achieve clear focusing even under changes in ambient temperature. Further precision machining can be used to adjust and strictly control the fit clearance between the focusing guide sleeve 632 and the focusing curve groove, ensuring smooth and jam-free movement of the electric focusing mechanism. When the focusing ring 404 rotates, it engages and drives the second potentiometer gear 704 to rotate. The change in resistance signal on the second potentiometer 502 is transmitted to the camera, thus enabling the recording function of lens defocus compensation value changes. Conversely, the camera can achieve rapid focusing of the lens by outputting a resistance signal, completing the temperature-compensated focusing of the lens.

[0132] The high-magnification continuous zoom lens for penetrating fog can also be equipped with multiple front group optical couplers 505, rear group optical couplers 506, front group optical coupler blocks 801, and rear group optical coupler blocks 802. The front group optical coupler 505 is connected to the front group lens barrel 401, the rear group optical coupler 506 is connected to the rear group lens barrel 403, the front group optical coupler blocks 801 are connected to the zoom compensation ring 402, and the rear group optical coupler blocks 802 are connected to the focusing ring 404. The rotation limit of the zoom compensation ring 402 is achieved through the inductive cooperation of the front group optical couplers 505 and the front group optical coupler blocks 801, and the rotation limit of the focusing ring 404 is achieved through the inductive cooperation of the rear group optical couplers 506 and the rear group optical coupler blocks 802. It should be noted that the connections described here can be direct connections or connections via adapters.

[0133] The parameters of the optical lens in this embodiment are shown in Tables 1, 2, and 3:

[0134] Table 1. Refractive index, dispersion coefficient, and center thickness of each lens

[0135]

[0136] Table 2 Surface parameters of each lens

[0137]

[0138] Table 3. Air gap (mm) of lenses at different focal lengths

[0139]

[0140] Based on the above parameters, the lens in this embodiment can achieve the following specifications:

[0141] Focal length: 50mm~360mm;

[0142] Maximum image height: φ18.8mm;

[0143] Aperture F: 4.0~6.0;

[0144] Operating wavelength: 500nm~1000nm;

[0145] Lens dimensions: 200mm × φ71mm.

[0146] The MTF charts at 50mm (short focal length) and 360mm (telephoto) show that aberrations in each field of view are well controlled, with MTF values ​​above 0.2 at 100 lp / mm, meeting the requirements for high-definition imaging.

[0147] The zoom design of this lens employs a mechanical positive group compensation method, which can better correct chromatic aberration and secondary spectrum. Furthermore, the smooth movement trajectory of the compensation lens group allows for a greater increase in the system's zoom ratio. For zoom systems, the secondary spectrum varies with focal length, with the maximum value occurring at the telephoto end. By selecting lens materials with different refractive indices and dispersion coefficients, different lens groups achieve their respective functions. The front fixed lens group primarily corrects spherical aberration, sinusoidal aberration, field curvature, and distortion at the telephoto end, and also corrects astigmatism, distortion, and off-axis spherical aberration at the short focal length end, while contributing a large portion of the system's secondary spectrum. The zoom lens group handles the zoom function of the entire optical system. The compensation lens group, positioned close to the variable aperture, reduces off-axis light height, minimizing off-axis astigmatism and distortion, and focuses on correcting spherical aberration, sinusoidal aberration, and other higher-order aberrations along the optical axis. The rear fixed lens group ensures a constant system power and compensates for residual aberrations in the preceding elements. Furthermore, by rationally setting the number and parameters of the lenses, this lens achieves both small size and lightweight design, while also ensuring sufficient structural design space for zoom focusing and compensation. It can also achieve high light transmission, large target area, high magnification continuous zoom, temperature compensation, and fog penetration, resulting in high image quality and a wide range of applications.

[0148] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0149] The embodiments described above are merely specific and detailed examples of the embodiments described in this application, and should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. A high-magnification continuous zoom lens for penetrating fog, characterized in that: The high-magnification continuous zoom fog-penetrating lens includes a front fixed lens group (11), a zoom lens group (12), a compensation lens group (13), a rear fixed lens group (15), a temperature focusing lens group (16), and a filter switcher (17) arranged sequentially along the light incident direction. The zoom lens group (12), the compensation lens group (13), and the temperature focusing lens group (16) can all move along the optical axis. The front fixed lens group (11) includes a first lens (101) and a first cemented lens group (B1) arranged sequentially along the incident direction of light. The zoom lens group (12) includes a fifth lens (105) and a second cemented lens group (B2) arranged sequentially along the incident direction of light. The compensation lens group (13) includes an eighth lens (108) and a third cemented lens group (B3) arranged sequentially along the incident direction of light. The rear fixed lens group (15) includes a fourth cemented lens group (B4), a fifth cemented lens group (B5), and a fifteenth lens (115) arranged sequentially along the incident direction of light. The temperature focusing lens group (16) includes a sixth cemented lens group (B6). The first cemented group (B1) includes a second lens (102), a third lens (103), and a fourth lens (104) arranged sequentially along the incident direction of light; the second cemented group (B2) includes a sixth lens (106) and a seventh lens (107) arranged sequentially along the incident direction of light; the third cemented group (B3) includes a ninth lens (109) and a tenth lens (110) arranged sequentially along the incident direction of light; the fourth cemented group (B4) includes an eleventh lens (111) and a twelfth lens (112) arranged sequentially along the incident direction of light; the fifth cemented group (B5) includes a thirteenth lens (113) and a fourteenth lens (114) arranged sequentially along the incident direction of light; and the sixth cemented group (B6) includes a sixteenth lens (116) and a seventeenth lens (117) arranged sequentially along the incident direction of light. The high-magnification continuous zoom fog-penetrating lens has 17 lenses with optical power. The parameters of the high-magnification continuous zoom lens for penetrating fog are as follows: ； The filter switcher (17) includes a filter and an anti-reflection filter, and is used to switch the filter and the anti-reflection filter in the direction perpendicular to the optical axis.

2. The high-magnification continuous zoom lens for penetrating fog as described in claim 1, characterized in that: The air gap between the front fixed lens group (11) and the zoom lens group (12) is 9.5mm-40mm, the air gap between the zoom lens group (12) and the compensation lens group (13) is 1mm-61.7mm, the air gap between the compensation lens group (13) and the rear fixed lens group (15) is 3.2mm-33.4mm, and the air gap between the rear fixed lens group (15) and the temperature focusing lens group (16) is 1mm-2.6mm.

3. The high-magnification continuous zoom lens for penetrating fog as described in claim 1, characterized in that: The air gap between the first lens (101) and the first cemented group (B1) is 0.2±0.05mm, the air gap between the fifth lens (105) and the second cemented group (B2) is 4.85±0.05mm, the air gap between the eighth lens (108) and the third cemented group (B3) is 0.15±0.05mm, the air gap between the fourth cemented group (B4) and the fifth cemented group (B5) is 8.56±0.05mm, and the air gap between the fifth cemented group (B5) and the fifteenth lens (115) is 1.7±0.05mm.

4. The high-magnification continuous zoom lens for penetrating fog as described in claim 1, characterized in that: The high-magnification continuous zoom fog-penetrating lens also meets the following conditions: Vd1=94.52±0.8%; Vd2=63.39±0.8%; Vd3=40.81±0.8%; Vd4=81.61±0.8%; Vd5=54.69±0.8%; Vd6=54.69±0.8%; Vd7=17.94±0.8%; Vd8=68.34±0.8%; Vd9=23.79±0.8%;Vd 10 =75.23±0.8%; Vd 11 =60.64±0.8%;Vd 12 =51.49±0.8%; Vd 13 =20.88±0.8%;Vd 14 =46.58±0.8%; Vd 15 =48.84±0.8%;Vd 16 =46.58±0.8%; CEO 17 =56.80±0.8% Among them, Vd1~Vd 17 These correspond sequentially to the dispersion coefficients of the first lens (101) to the seventeenth lens (117).

5. The high-magnification continuous zoom lens for penetrating fog as described in claim 1, characterized in that: The high-magnification continuous zoom fog-penetrating lens also includes a front group lens barrel (401), an electric zoom compensation mechanism, a rear group lens barrel (403), an electric focusing mechanism, a rear group transition lens barrel (405), and a camera interface (406), wherein: The front group lens barrel (401) has several first straight grooves parallel to the optical axis, and the front fixed lens group (11) is built into the front group lens barrel (401); The electric zoom compensation mechanism includes a zoom compensation ring (402), a zoom moving lens barrel (407), a compensation moving lens barrel (408), a first drive mechanism, and several zoom compensation guide pin assemblies (62) corresponding one-to-one with the first straight groove, wherein: The zoom compensation ring (402) is coaxially sleeved outside the front group lens barrel (401), and the ring wall is provided with a number of zoom curve grooves (4021) and a number of compensation curve grooves (4022). The zoom telescopic tube (407) and the compensation telescopic tube (408) are built into the front group telescopic tube (401), and the zoom lens group (12) is built into the zoom telescopic tube (407), and the compensation lens group (13) is built into the compensation telescopic tube (408). The zoom compensation guide pin assembly (62) includes a first guide pin (622), which is connected to the zoom moving lens barrel (407) or the compensation moving lens barrel (408). The first guide pin (622) on the zoom moving lens barrel (407) passes through the first straight groove and the zoom curve groove (4021) in sequence, and the first guide pin (622) on the compensation moving lens barrel (408) passes through the first straight groove and the compensation curve groove (4022) in sequence, respectively. The first driving mechanism is used to drive the zoom compensation ring (402) to rotate around the axis, thereby driving the zoom moving lens tube (407) and the compensation moving lens tube (408) to move along the optical axis; The rear group lens tube (403) is connected to the front group lens tube (401), the rear fixed lens group (15) is built into the rear group lens tube (403), and the annular wall of the rear group lens tube (403) is also provided with a number of second straight grooves parallel to the optical axis. The electric focusing mechanism includes a focusing ring (404), a focusing moving lens barrel (409), a second drive mechanism, and several focusing guide pin assemblies (63), wherein: The focusing ring (404) is coaxially sleeved outside the rear lens barrel (403), and the ring wall is provided with a number of focusing curve grooves; The focusing movable lens tube (409) is built into the rear lens tube (403), and the temperature focusing lens group (16) is built into the focusing movable lens tube (409); The focusing guide pin assembly (63) includes a second guide pin (631), which is connected to the focusing moving lens barrel (409) and passes through the second straight groove and the focusing curve groove in sequence. The second driving mechanism is used to drive the focusing ring (404) to rotate around the axis, thereby driving the focusing moving lens barrel (409) to move along the optical axis; The rear transition lens barrel (405) is connected to the rear lens barrel (403), and the filter switcher (17) is built into the rear transition lens barrel (405); The camera interface (406) is connected to the rear transition lens barrel (405) and is used to connect the camera.

6. The high-magnification continuous zoom lens for penetrating fog as described in claim 5, characterized in that: The first driving mechanism includes a first potentiometer (501), a first motor (503), a first motor gear (701), a first potentiometer gear (703), and a magnification compensation gear. The magnification compensation gear is coaxially connected to the magnification compensation ring (402). Both the first motor gear (701) and the first potentiometer gear (703) mesh with the magnification compensation gear. Both the first motor (503) and the first potentiometer (501) are connected to the front group lens barrel (401), and the first motor (503) is connected via... The first motor gear (701) is driven to rotate, which in turn drives the zoom compensation ring (402) and the first potentiometer gear (703) to rotate, thereby driving the zoom lens group (12) and the compensation lens group (13) to move along the optical axis to achieve zoom. The first potentiometer (501) is used to detect the amount of rotation of the first potentiometer gear (703) to form a first resistance signal and send it to the camera to determine the lens focal length, or to receive the first resistance signal sent by the camera to drive the first motor (503) to achieve zoom. The second driving mechanism includes a second potentiometer (502), a second motor (504), a second motor gear (702), a second potentiometer gear (704), and a focusing gear. The focusing gear is coaxially connected to the focusing ring (404). The second motor gear (702) and the second potentiometer gear (704) are both meshed with the focusing gear. The second potentiometer (502) and the second motor (504) are both connected to the rear lens barrel (403). The second motor (504) drives the second motor gear (702) to rotate, thereby driving the focusing ring (404) and the second potentiometer gear (704) to rotate, thereby driving the temperature focusing lens group (16) to move along the optical axis to achieve focusing. The second potentiometer (502) is used to detect the rotation amount of the second potentiometer gear (704) to form a second resistance signal and send it to the camera to determine the lens defocus amount, or to receive the second resistance signal sent by the camera to drive the second motor (504) to achieve focusing. The zoom compensation guide pin assembly (62) further includes two miniature bearings (621) and at least one bearing washer (623) sleeved on the first guide pin (622). The bearing washer (623) is located between the two miniature bearings (621), and the miniature bearing (621) closer to the zoom moving lens barrel (407) is slidably connected to the corresponding first straight groove, and the miniature bearing (621) farther away from the zoom moving lens barrel (407) is slidably connected to the corresponding zoom curve groove (4021) or compensation curve groove (4022). The focusing guide pin assembly (63) further includes a focusing guide pin sleeve (632), which is coaxially sleeved on the second guide pin (631) and forms a rotatable connection. The focusing guide pin sleeve (632) is also slidably connected to the corresponding second straight groove and focusing curve groove. Several ball bearings (61) are also provided between the zoom compensation ring (402) and the adjacent ring wall of the front group lens tube (401).

7. The high-magnification continuous zoom lens for penetrating fog as described in claim 1, characterized in that: The high-magnification continuous zoom fog-penetrating lens also includes a variable aperture (14), which is located between the compensation lens group (13) and the rear fixed lens group (15). The air gap between the compensation lens group (13) and the variable aperture (14) is 3mm-33.2mm, and the air gap between the variable aperture (14) and the rear fixed lens group (15) is 0.1mm-0.3mm.

8. The high-magnification continuous zoom fog-penetrating lens as described in any one of claims 1 to 7, characterized in that: The first lens (101) to the seventeenth lens (117) satisfy R < 0.3% in the λ = 500nm~1000nm band; the antireflective film satisfies T ≤ 0.5% in the λ < 850nm band and T > 95% in the λ = 850nm~1000nm band; the filter satisfies T > 95% in the λ = 550nm~750nm band and T < 0.7% in the λ = 850nm~1000nm band, where λ is the wavelength, R is the reflectivity, and T is the transmittance.

Images