Optical system for realizing fusion of telescopic and projected information
Patent Information
- Application Number
- CN202522615315.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-12-10
AI Technical Summary
[0004]本实用新型旨在解决现有望远系统信息单一、功能扩展难的问题，提出一种实现望远与投影信息融合的光学系统，其核心在于采用了转像棱镜和共用目镜的结构，成功将两种信息流整合到同一视场
1、本实用新型使望远观察与OLED投影显示得以同步进行，成功将两种信息流整合到同一视场，极大丰富了望远系统的应用价值，也避免了为集成多种功能而导致的系统臃肿，为开发多功能、轻便化的观察设备提供了新思路。
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Figure CN224803299U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of optical system technology, specifically, it relates to an optical system for realizing the fusion of telescopic and projection information. Background Technology
[0002] With increasing application demands, especially in fields such as reconnaissance, national defense, geological exploration, and field operations, the requirements for optical systems are no longer limited to simple telescopic observation. The expectation is that systems can simultaneously provide high-resolution images of targets and overlay key information such as range measurement, infrared images, BeiDou coordinates, and azimuth. Therefore, applying OLED projection technology to telescopic systems has become a research direction. Theoretically, this combination can enable the intuitive acquisition of additional electronic data while observing the target.
[0003] However, existing projection telescope systems often face challenges in practice: they may be bulky and heavy, increasing the inconvenience of carrying and using them; at the same time, their reliance on electronic components means they lose functionality in the absence of power. Furthermore, how to efficiently and without interference fuse the telescope image with the projection information and transmit it to the observer remains a pressing technical challenge in this field. These factors collectively restrict the widespread application of such optical systems. Utility Model Content
[0004] This invention aims to solve the problems of limited information and difficulty in functional expansion in existing telescope systems. It proposes an optical system that integrates telescopic and projection information. The core of this system lies in its use of an image-rotating prism and a shared eyepiece, successfully integrating the two information streams into a single field of view. Users can directly obtain superimposed projection information (such as infrared images, rangefinding data, BeiDou data, and azimuth data) while observing distant targets, greatly enriching the application value of telescope systems and avoiding system bloat caused by integrating multiple functions. This provides a new approach for developing multifunctional and lightweight observation devices.
[0005] To achieve the above objectives, this utility model provides the following technical solution: An optical system for fusing telescopic and projected information includes a telescope objective, a display screen, a projection objective, an image-rotating prism, a reticle, and a common eyepiece. The telescopic information collected by the telescope objective is deflected by the image-rotating prism to generate a rotated image. The projected information emitted by the display screen is incident on the image-rotating prism through the projection objective to generate a rotated projection. The rotated image and the rotated projection pass through the reticle together and are finally combined by the common eyepiece.
[0006] Preferably, the image-rotating prism includes a right-angle prism one, a right-angle prism two, and a right-angle prism three, wherein the right-angle prism one and the right-angle prism two are combined to form a Prudential prism; the inclined surface of the right-angle prism three is glued to a right-angle surface of the right-angle prism two.
[0007] Preferably, the telescope objective has a focal length of 510-570mm, the common eyepiece has a focal length of 17-19mm, and the telescope objective and the common eyepiece form a 30x telescope optical system. The projection objective and the common eyepiece form a projection optical system with a focal length of 17-19mm. More preferably, the telescope objective has a focal length of 540mm, the common eyepiece has a focal length of 18mm, and the projection objective and the common eyepiece form a projection optical system with a focal length of 19mm.
[0008] Preferably, the telescope objective includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged sequentially along the incident direction of the optical axis; The common eyepiece includes a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens arranged sequentially along the incident direction of the optical axis; The projection lens includes an eleventh lens, a twelfth lens, a thirteenth lens, and a fourteenth lens arranged sequentially along the incident direction of the optical axis; The first lens is a positive lens, with a convex incident surface and a convex exit surface; The second lens is a negative lens, with a convex incident surface and a concave exit surface. The third lens is a positive lens, with a convex light incident surface and a concave light exit surface; The fourth lens is a positive lens, with a convex light incident surface and a concave light exit surface; The fifth lens is a positive lens, with a convex incident surface and a concave exit surface. The second lens and the third lens are cemented together. The sixth lens is a positive lens, with a concave incident surface and a convex exit surface. The seventh lens is a negative lens, with a concave incident surface and a convex exit surface. The eighth lens is a positive lens, with a concave incident surface and a convex exit surface. The ninth lens is a positive lens, with a convex incident surface and a convex exit surface. The tenth lens is a positive lens, with a convex light incident surface and a flat light exit surface. The seventh lens and the eighth lens are cemented together; The eleventh lens is a negative lens, with a convex light incident surface and a concave light exit surface; The twelfth lens is a positive lens, with a concave incident surface and a convex exit surface. The thirteenth lens is a negative lens, with a convex light incident surface and a concave light exit surface; The fourteenth lens is a positive lens, with a convex incident surface and a convex exit surface.
[0009] The radii of curvature of the incident surfaces of the first to fourteenth lenses are R1 to R14, respectively, and the radii of curvature of the exit surfaces of the first to fourteenth lenses are R1′ to R14′, respectively, and satisfy the following parameters: 110mm<R1<130mm, -2500mm<R1′<-3000mm; 120mm<R2<140mm, 45mm<R2′<55mm; 45mm<R3<55mm, 390mm<R3′<400mm; 35mm<R4<45mm, 40mm<R4′<50mm; 105mm<R5<115mm, 20mm<R5′<30mm; -30mm<R6<-40 mm, -10mm<R6′<-20mm; -5mm<R7<-10mm, -15mm<R7′<-25mm; -15mm<R8<-25mm, -5mm<R8′<-15mm; 160mm<R9<180mm, -30mm<R9′<-40mm; 35mm<R10<45mm, R10′=∞; 30mm<R11<40mm, 3mm<R11′<10mm; -30mm<R12<-40mm, -10mm<R12′<-20mm; 55mm<R13<65mm, 15mm<R13′<25mm; 20mm<R14<30mm, -25mm<R14′<-35mm.
[0010] Specifically, the refractive indices of the glass materials used in the first to fourteenth lenses are n1 to n14, respectively, and the Abbe numbers of the glass materials used in the first to fourteenth lenses are v1 to v14, respectively, and satisfy the following parameters: 1.48<n1<1.60, 75<v1<90; 1.85<n2<1.95, 20<v2<35; 1.48<n3<1.60, 75<v3<90; 1.85<n4<1.95, 10<v4<20; 1.65<n5<1.75, 50<v5<60; 1.75<n6<1.85, 35<v6<45; 1.85<n7<1.95, 10<v7<20; 1.75<n8<1.85, 35<v8<45; 1.55<n9<1.65, 60<v9<70; 1.55<n10<1.65, 60<v10<70; 1.50<n11<1.60, 65<v11<75; 1.75<n12<1.85, 40<v12<50; 1.80 < n13 < 1.90, 20 < v13 < 30; 1.55<n14<1.65, 60<v14<70.
[0011] Furthermore, the thicknesses of the first lens to the fourteenth lens are d1 to d14 respectively, and satisfy the following parameters: 13mm < d1 < 15mm; 7mm < d2 < 9mm; 15mm < d3 < 17mm; 9mm < d4 < 11mm; 5.5mm < d5 < 6.5mm; 2mm < d6 < 3.5mm; 2mm < d7 < 3.5mm; 2.5mm < d8 < 4.5mm; 2mm < d9 < 3mm; 2mm < d10 < 3mm; 3.5mm < d11 < 4.5mm; 3.3mm < d12 < 4.3mm; 1.5mm < d13 < 2.5mm; 3.5mm < d14 < 4.5mm.
[0012] Preferably, the total optical path of the first right-angle prism is 30-50 mm, the total optical path of the second right-angle prism is 30-50 mm, and the total optical path of the third right-angle prism is 8-15 mm.
[0013] Preferably, the light rays for the telescopic information are incident on the inclined surface of right-angle prism one, undergo two total internal reflections on the right-angle face of right-angle prism one, and then incident on the inclined surface of right-angle prism two, undergo two total internal reflections on the right-angle face of right-angle prism two, and reach the reticle. The image of the external scene is rotated 180°, but the chirality remains unchanged. The light rays for the projected information are incident on the right-angle face of right-angle prism three, reach the cemented surface of right-angle prism three and right-angle prism two, undergo total internal reflection on the right-angle face of right-angle prism two, and exit from the inclined surface of right-angle prism two to reach the reticle. The image of the projected information is rotated 90°, which is compensated for by the flip function of the display screen.
[0014] Preferably, the telescope objective and the shared eyepiece form a purely optical aiming system, which can perform target detection in special field environments where long-term operation is required, even in the absence of electricity.
[0015] Preferably, the display screen is an OLED screen, an LCOS screen, or an LCD screen, used to project various attitude information, including but not limited to ranging, infrared images, BeiDou coordinates, and azimuth angle. The OLED screen is a silicon-based OLED microdisplay. This configuration helps solve the problem of limited target information in the telescope system, improves environmental adaptability, and reduces optical costs and weight by using the OLED projection and sharing an eyepiece with the telescope. Furthermore, the display is versatile, allowing the use of alternative display devices with equivalent display capabilities.
[0016] This utility model also includes other devices or components that enable the utility model to be used normally, all of which are conventional technical means in the field. In addition, any devices or components not limited in this utility model adopt conventional means in the prior art.
[0017] The working principle of this invention is that the system cleverly uses a cemented prism to couple the OLED projection light path into the telescope optical system. Through the design of the flexible prism and the right-angle prism, the telescope optical path and the projection optical path can share the same eyepiece, successfully integrating the two information streams into the same field of view. Users can intuitively obtain superimposed projection information (such as infrared images, ranging, BeiDou, azimuth data, etc.) while observing distant targets, which greatly enriches the application value of the telescope system and avoids the system bloat caused by integrating multiple functions. It provides a new idea for developing multifunctional and lightweight observation equipment.
[0018] This invention utilizes a unique optical path design to synchronize telescopic observation with projection display on a screen. First, the telescopic information collected by the objective lens is redirected by an image-rotating prism to generate a redirected image. Then, the projection information emitted from the screen is redirected by the projection lens to the image-rotating prism to generate a redirected projection. Both the redirected image and the redirected projection pass through the reticle and are finally combined by a shared eyepiece, reaching the observer's retina. This design not only effectively overcomes the limitation of traditional telescopic systems providing only single target information but also achieves a good balance in terms of system size, weight, and cost. With this system, multiple key information such as infrared, range, BeiDou, and azimuth data can be overlaid and displayed, and it possesses the ability to operate reliably in all weather conditions and in harsh environments without power.
[0019] Furthermore, the telescope objective and shared eyepiece of this invention form a purely optical aiming system. In special field environments requiring extended operation, its usage can be reduced, enabling target detection even without power. Under normal operating conditions, the system integrates the telescope optical path and the projection optical path, simultaneously providing the observer with a telescope image of the external scene and reference information projected onto the OLED screen. Even when encountering special environmental conditions leading to prolonged use and power depletion, the system design ensures that the telescope optical path can still operate independently, maintaining the ability to observe distant targets.
[0020] Compared with the prior art, the utility model has the following beneficial effects: 1. This utility model enables simultaneous telescopic observation and OLED projection display, successfully integrating the two information streams into the same field of view, greatly enriching the application value of the telescopic system, and avoiding system bloat caused by integrating multiple functions, providing a new approach for developing multifunctional and lightweight observation equipment.
[0021] 2. This utility model has good environmental adaptability and can ensure that the telescope optical path can still work independently in the absence of electricity, complete the target detection function, and maintain the ability to observe distant targets. Attached Figure Description
[0022] The utility model will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the optical system of this utility model in an embodiment; Figure 2 This is the optical transfer function (MTF) curve of the present invention in the embodiment; Figure 3 This is an optical dot plot (spt) of the present invention in the embodiments; Figure 4 This is an optical distortion field curve of the present invention in an embodiment.
[0023] Figure 1In the diagram, 1-first lens, 2-second lens, 3-third lens, 4-fourth lens, 5-fifth lens, 6-right-angle prism one, 7-right-angle prism two, 8-reticle, 9-sixth lens, 10-seventh lens, 11-eighth lens, 12-ninth lens, 13-tenth lens, 14-human eye, 15-right-angle prism three, 16-fourteenth lens, 17-thirteenth lens, 18-twelfth lens, 19-eleventh lens. Detailed Implementation
[0024] The utility model will now be clearly described with reference to the accompanying drawings and specific embodiments. This description is merely for explaining the utility model and is not intended to limit it. Any modifications, equivalent substitutions, or improvements made by those skilled in the art based on the embodiments of the utility model without inventive effort to obtain all other embodiments should be included within the protection scope of the utility model.
[0025] Example like Figure 1 As shown, this embodiment provides an optical system for fusing telescopic and projected information, including a telescope objective lens, a display screen, a projection objective lens, an image-rotating prism, a reticle 8, and a common eyepiece. The telescopic information collected by the telescope objective lens is rotated by the image-rotating prism to generate a rotated image. The projected information emitted by the display screen is incident on the image-rotating prism through the projection objective lens to generate a rotated projection. The rotated image and the rotated projection pass through the reticle together and are finally combined by the common eyepiece and incident on the human eye 14.
[0026] Specifically, the image-rotating prism includes a first right-angle prism 6, a second right-angle prism 7, and a third right-angle prism 15. The first right-angle prism and the second right-angle prism are combined to form a Prudential prism. The inclined surface of the third right-angle prism is cemented to a right-angle surface of the second right-angle prism. The total optical path of the first right-angle prism is 30-50 mm, the total optical path of the second right-angle prism is 30-50 mm, and the total optical path of the third right-angle prism is 8-15 mm.
[0027] In this embodiment, the telescope objective has a focal length of 540mm, the common eyepiece has a focal length of 18mm, the telescope objective and the common eyepiece form a 30x telescope optical system, and the projection objective and the common eyepiece form a projection optical system with a focal length of 19mm.
[0028] Continuing with the above embodiments, the telescope objective lens includes a first lens 1, a second lens 2, a third lens 3, a fourth lens 4, and a fifth lens 5 arranged sequentially along the incident direction of the optical axis; The common eyepiece includes a sixth lens 9, a seventh lens 10, an eighth lens 11, a ninth lens 12, and a tenth lens 13 arranged sequentially along the incident direction of the optical axis; The projection lens includes an eleventh lens 19, a twelfth lens 18, a thirteenth lens 17, and a fourteenth lens 16 arranged sequentially along the incident direction of the optical axis; The first lens is a positive lens, with a convex incident surface and a convex exit surface; The second lens is a negative lens, with a convex incident surface and a concave exit surface. The third lens is a positive lens, with a convex light incident surface and a concave light exit surface; The fourth lens is a positive lens, with a convex light incident surface and a concave light exit surface; The fifth lens is a positive lens, with a convex incident surface and a concave exit surface. The second lens and the third lens are cemented together. The sixth lens is a positive lens, with a concave incident surface and a convex exit surface. The seventh lens is a negative lens, with a concave incident surface and a convex exit surface. The eighth lens is a positive lens, with a concave incident surface and a convex exit surface. The ninth lens is a positive lens, with a convex incident surface and a convex exit surface. The tenth lens is a positive lens, with a convex light incident surface and a flat light exit surface. The seventh lens and the eighth lens are cemented together; The eleventh lens is a negative lens, with a convex light incident surface and a concave light exit surface; The twelfth lens is a positive lens, with a concave incident surface and a convex exit surface. The thirteenth lens is a negative lens, with a convex light incident surface and a concave light exit surface; The fourteenth lens is a positive lens, with a convex incident surface and a convex exit surface.
[0029] The radii of curvature of the incident surfaces of the first to fourteenth lenses are R1 to R14, respectively, and the radii of curvature of the exit surfaces of the first to fourteenth lenses are R1′ to R14′, respectively, and satisfy the following parameters: 110mm<R1<130mm, -2500mm<R1′<-3000mm; 120mm<R2<140mm, 45mm<R2′<55mm; 45mm<R3<55mm, 390mm<R3′<400mm; 35mm<R4<45mm, 40mm<R4′<50mm; 105mm<R5<115mm, 20mm<R5′<30mm; -30mm<R6<-40 mm, -10mm<R6′<-20mm; -5mm<R7<-10mm, -15mm<R7′<-25mm; -15mm<R8<-25mm, -5mm<R8′<-15mm; 160mm<R9<180mm, -30mm<R9′<-40mm; 35mm<R10<45mm, R10′=∞; 30mm<R11<40mm, 3mm<R11′<10mm; -30mm<R12<-40mm, -10mm<R12′<-20mm; 55mm<R13<65mm, 15mm<R13′<25mm; 20mm<R14<30mm, -25mm<R14′<-35mm.
[0030] Specifically, the refractive indices of the glass materials used in the first to fourteenth lenses are n1 to n14, respectively, and the Abbe numbers of the glass materials used in the first to fourteenth lenses are v1 to v14, respectively, and satisfy the following parameters: 1.48<n1<1.60, 75<v1<90; 1.85<n2<1.95, 20<v2<35; 1.48<n3<1.60, 75<v3<90; 1.85<n4<1.95, 10<v4<20; 1.65<n5<1.75, 50<v5<60; 1.75<n6<1.85, 35<v6<45; 1.85<n7<1.95, 10<v7<20; 1.75<n8<1.85, 35<v8<45; 1.55<n9<1.65, 60<v9<70; 1.55<n10<1.65, 60<v10<70; 1.50<n11<1.60, 65<v11<75; 1.75<n12<1.85, 40<v12<50; 1.80 < n13 < 1.90, 20 < v13 < 30; 1.55<n14<1.65, 60<v14<70.
[0031] Furthermore, the thicknesses of the first lens to the fourteenth lens are d1 to d14 respectively, and satisfy the following parameters: 13mm < d1 < 15mm; 7mm < d2 < 9mm; 15mm < d3 < 17mm; 9mm < d4 < 11mm; 5.5mm < d5 < 6.5mm; 2mm < d6 < 3.5mm; 2mm < d7 < 3.5mm; 2.5mm < d8 < 4.5mm; 2mm < d9 < 3mm; 2mm < d10 < 3mm; 3.5mm < d11 < 4.5mm; 3.3mm < d12 < 4.3mm; 1.5mm < d13 < 2.5mm; 3.5mm < d14 < 4.5mm.
[0032] The light rays carrying the telescopic information are incident on the inclined surface of right-angle prism one, undergo two total internal reflections on the right-angle face of right-angle prism one, and then incident on the inclined surface of right-angle prism two, undergo two total internal reflections on the right-angle face of right-angle prism two to reach the reticle. The image of the external scene is rotated 180°, but the chirality remains unchanged. The light rays carrying the projected information are incident on the right-angle face of right-angle prism three, reach the cemented surface of right-angle prism three and right-angle prism two, undergo total internal reflection on the right-angle face of right-angle prism two, and exit from the inclined surface of right-angle prism two to reach the reticle. The image of the projected information is rotated 90°, which is compensated for by the flip function of the display screen.
[0033] In this embodiment, the telescope objective and the shared eyepiece form a pure optical aiming system, which can perform target detection in special field environments where long-term operation is required, even in the absence of electricity.
[0034] Specifically, the display screen is an OLED screen used for projecting attitude information such as ranging, infrared images, BeiDou coordinates, and azimuth angle. More specifically, the OLED screen is a silicon-based OLED microdisplay. This configuration helps solve the problem of limited target information in the telescope system, improves environmental adaptability, and reduces optical costs and weight by using the OLED projection and telescope to share an eyepiece.
[0035] In this embodiment, Figure 1The optical system diagram for fusing telescopic and projected information shows an axial length of 220-270 mm, an aperture of 70-80 mm, and a total weight of 400-500 g. The optical transfer function (MTF) curve of the optical system is shown below. Figure 2 As shown, the horizontal axis represents spatial frequency (lp / mm), and the vertical axis represents the transfer function value (MTF). In this invention, the spatial frequency corresponding to the human eye's resolving limit 1′ is 50 lp / mm, which is derived from... Figure 2 It can be seen that the on-axis optical transfer function is greater than 70%, and the optical transfer function of the entire field of view is 40%~70%, which meets the requirements of clear imaging for system reconnaissance.
[0036] In this embodiment, the optical point plot (spt) of the optical system is as follows: Figure 3 As shown, the RMS radius of the diffuse spot corresponds to an angle greater than 1′ between the target and the target, which is greater than the human eye's resolution limit and meets the target reconnaissance requirements. The optical distortion field curve of the optical system is shown below. Figure 4 As shown, the distortion of this utility model is less than 3%, which meets the requirements for target reconnaissance.
[0037] The working principle of this invention is that the system cleverly uses a cemented prism to couple the OLED projection light path into the telescope optical system. Through the design of a flexible prism and a right-angle prism, the telescope optical path and the projection optical path can share the same eyepiece, successfully integrating the two information streams into the same field of view. Users can intuitively obtain superimposed projection information while observing distant targets. With the help of this system, multiple key information such as target infrared, ranging, BeiDou, and azimuth can be superimposed and displayed. It also has the ability to work reliably in harsh environments such as all-weather and power-free conditions, thus greatly enriching the application value of the telescope system and avoiding the system bloat caused by integrating multiple functions. It provides a new idea for developing multifunctional and lightweight observation equipment.
[0038] The above description is merely a preferred embodiment of the present invention and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.
Claims
1. An optical system for fusing telescopic and projection information, characterized in that: It includes a telescope objective lens, a display screen, a projection objective lens, an image-rotating prism, a reticle, and a common eyepiece. The telescope objective lens collects telescope information, which is then rotated by the image-rotating prism to generate a rotating image. The projection information emitted by the display screen is incident on the image-rotating prism through the projection objective lens to generate a rotating projection. The rotating image and the rotating projection pass through the reticle together and are finally combined by the common eyepiece. The image-rotating prism includes a right-angle prism one, a right-angle prism two, and a right-angle prism three. The right-angle prism one and the right-angle prism two are combined to form a Prudential prism. The inclined surface of the right-angle prism three is glued to a right-angle surface of the right-angle prism two. The common eyepiece includes a sixth lens, a seventh lens, an eighth lens, a ninth lens, and a tenth lens arranged sequentially along the incident direction of the optical axis; The sixth lens is a positive lens, with a concave incident surface and a convex exit surface. The seventh lens is a negative lens, with a concave incident surface and a convex exit surface. The eighth lens is a positive lens, with a concave incident surface and a convex exit surface. The ninth lens is a positive lens, with a convex incident surface and a convex exit surface. The tenth lens is a positive lens, with a convex light incident surface and a flat light exit surface. The seventh lens and the eighth lens are cemented together.
2. The optical system for fusing telescopic and projection information according to claim 1, characterized in that: The telescope objective has a focal length of 510~570mm, the common eyepiece has a focal length of 17~19mm, the telescope objective and the common eyepiece form a 30x telescope optical system, and the projection objective and the common eyepiece form a projection optical system with a focal length of 17~19mm.
3. The optical system for fusing telescopic and projection information according to claim 1, characterized in that: The telescope objective includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens arranged sequentially along the incident direction of the optical axis; The projection lens includes an eleventh lens, a twelfth lens, a thirteenth lens, and a fourteenth lens arranged sequentially along the incident direction of the optical axis; The first lens is a positive lens, with a convex incident surface and a convex exit surface; The second lens is a negative lens, with a convex incident surface and a concave exit surface. The third lens is a positive lens, with a convex light incident surface and a concave light exit surface; The fourth lens is a positive lens, with a convex light incident surface and a concave light exit surface; The fifth lens is a positive lens, with a convex incident surface and a concave exit surface. The second lens and the third lens are cemented together. The eleventh lens is a negative lens, with a convex light incident surface and a concave light exit surface; The twelfth lens is a positive lens, with a concave incident surface and a convex exit surface. The thirteenth lens is a negative lens, with a convex light incident surface and a concave light exit surface; The fourteenth lens is a positive lens, with a convex incident surface and a convex exit surface.
4. The optical system for fusing telescopic and projection information according to claim 3, characterized in that: The radii of curvature of the incident surfaces of the first to the fourteenth lenses are R1 to R14, respectively, and the radii of curvature of the exit surfaces of the first to the fourteenth lenses are R1′ to R14′, respectively, and satisfy the following parameters: 110mm<R1<130mm, -2500mm<R1′<-3000mm; 120mm<R2<140mm, 45mm<R2′<55mm; 45mm<R3<55mm, 390mm<R3′<400mm; 35mm<R4<45mm, 40mm<R4′<50mm; 105mm<R5<115mm, 20mm<R5′<30mm; -30mm<R6<-40 mm, -10mm<R6′<-20mm; -5mm<R7<-10mm, -15mm<R7′<-25mm; -15mm<R8<-25mm, -5mm<R8′<-15mm; 160mm<R9<180mm, -30mm<R9′<-40mm; 35mm<R10<45mm, R10′=∞; 30mm<R11<40mm, 3mm<R11′<10mm; -30mm<R12<-40mm, -10mm<R12′<-20mm; 55mm<R13<65mm, 15mm<R13′<25mm; 20mm<R14<30mm, -25mm<R14′<-35mm.
5. An optical system for fusing telescopic and projection information according to claim 4, characterized in that: The refractive indices of the glass materials used in the first to fourteenth lenses are n1 to n14, respectively, and the Abbe numbers of the glass materials used in the first to fourteenth lenses are v1 to v14, respectively, and the following parameters are satisfied: 1.48<n1<1.60, 75<v1<90; 1.85<n2<1.95, 20<v2<35; 1.48<n3<1.60, 75<v3<90; 1.85<n4<1.95, 10<v4<20; 1.65<n5<1.75, 50<v5<60; 1.75<n6<1.85, 35<v6<45; 1.85<n7<1.95, 10<v7<20; 1.75<n8<1.85, 35<v8<45; 1.55<n9<1.65, 60<v9<70; 1.55<n10<1.65, 60<v10<70; 1.50<n11<1.60, 65<v11<75; 1.75<n12<1.85, 40<v12<50; 1.80 < n13 < 1.90, 20 < v13 < 30; 1.55<n14<1.65, 60<v14<70.
6. An optical system for fusing telescopic and projection information according to claim 4, characterized in that: The thicknesses of the first to the fourteenth lenses are d1 to d14 respectively, and they satisfy the following parameters: 13mm < d1 < 15mm; 7mm < d2 < 9mm; 15mm < d3 < 17mm; 9mm < d4 < 11mm; 5.5mm < d5 < 6.5mm; 2mm < d6 < 3.5mm; 2mm < d7 < 3.5mm; 2.5mm < d8 < 4.5mm; 2mm < d9 < 3mm; 2mm < d10 < 3mm; 3.5mm < d11 < 4.5mm; 3.3mm < d12 < 4.3mm; 1.5mm < d13 < 2.5mm; 3.5mm < d14 < 4.5mm.
7. An optical system for fusing telescopic and projection information according to claim 1, characterized in that: The total optical path of right-angle prism one is 30~50mm, the total optical path of right-angle prism two is 30~50mm, and the total optical path of right-angle prism three is 8~15mm.
8. An optical system for fusing telescopic and projection information according to claim 1, characterized in that: The light rays carrying the telescopic information are incident on the inclined surface of right-angle prism one, undergo two total internal reflections on the right-angle face of right-angle prism one, and then incident on the inclined surface of right-angle prism two, undergo two total internal reflections on the right-angle face of right-angle prism two to reach the reticle. The image of the external scene is rotated 180°, but the chirality remains unchanged. The light rays carrying the projected information are incident on the right-angle face of right-angle prism three, reach the cemented surface of right-angle prism three and right-angle prism two, undergo total internal reflection on the right-angle face of right-angle prism two, and exit from the inclined surface of right-angle prism two to reach the reticle. The image of the projected information is rotated 90°, which is compensated for by the flip function of the display screen.
9. An optical system for fusing telescopic and projection information according to any one of claims 1 to 8, characterized in that: The display screen is selected from OLED, LCOS or LCD screens and is used to project various attitude information, including but not limited to ranging, infrared images, BeiDou coordinates and azimuth angles. The OLED screen is selected from silicon-based OLED microdisplays.