Distance-measuring target-watching bird-watching mirror

Abstract

The invention discloses a ranging target-watching and bird-watching mirror which comprises a receiving light path, a laser emitting system, a laser receiving system and a liquid crystal display system. The receiving light path is sequentially provided with an objective lens group, a focusing objective lens, a differentiation plate, a zoom front lens group, a zoom compensation lens group, a zoom rear lens group and a fixed eyepiece group along the light beam propagation direction; the laser emission system comprises a laser light emitting diode and an emission lens which are arranged along the propagation direction of an emission light path; the laser receiving system is used for converting a light signal in a receiving light path into an electric signal through a beam splitter prism to obtain a target distance and displaying the target distance through the liquid crystal display system; the liquid crystal display system is used for combining display information containing the target distance to the receiving light path through the beam splitter prism and transmitting the display information to the fixed eyepiece group. On the basis of the structure of a traditional target and bird observation mirror, the appearance size does not need to be changed, the aiming definition of a distant object is guaranteed, and meanwhile the real-time distance measurement function can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of target and bird-watching mirrors, in particular to a target and bird-watching mirror with a distance-measuring function. Background Art

[0002] Target sighting scopes and bird-watching scopes are optical instruments used for long-distance observation and are used in military, tourism and other fields. However, most target sighting scopes and bird-watching scopes on the market now only have telescope observation functions and cannot measure the observed targets. Especially for target sighting scopes used in military training, if the distance to the target cannot be measured, the trajectory cannot be effectively calibrated and corrected.

[0003] Currently, rangefinder modifications for target and birdwatching scopes rely on adding external rangefinder sensors, which impact the overall shape and weight. For scenarios requiring high rangefinder accuracy, external rangefinder sensors are larger and less portable in the field.

[0004] Therefore, how to provide a target viewing and bird watching telescope that retains the traditional dimensions of the target viewing and bird watching telescope and has a ranging function is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Invention

[0005] In response to the above research status, the present invention provides a distance-finding and target-viewing bird-watching telescope. Based on the structure of the traditional target-viewing bird-watching telescope, it does not need to change the external dimensions, ensures the aiming clarity of distant objects, and can realize the real-time distance measurement function.

[0006] The present invention provides a rangefinder, target-sighting, birdwatching scope, comprising a receiving optical path, wherein the receiving optical path is sequentially provided with: an objective lens group, a focusing objective lens, a splitting plate, a front zoom lens group, a zoom compensation lens group, a rear zoom lens group, and a fixed eyepiece group along the direction of light beam propagation; further comprising: a laser emitting system, a laser receiving system, and a liquid crystal display system; wherein,

[0007] The laser emission system includes a laser light emitting diode and an emission lens arranged along the propagation direction of the emission light path, and the emission lens is embedded in the objective lens group;

[0008] The laser receiving system is arranged in the receiving optical path at the front end of the fixed eyepiece assembly, and is used to convert the optical signal in the receiving optical path into an electrical signal via a beam splitter prism, and obtain the target distance and display it via the liquid crystal display system;

[0009] The liquid crystal display system is arranged in the receiving light path at the front end of the fixed eyepiece group, and is used to combine the display information containing the target distance into the receiving light path through a beam splitter prism, and transmit it to the fixed eyepiece group.

[0010] Preferably, the laser receiving system includes a first beam splitter prism, a receiving lens and a laser receiver arranged in sequence along the propagation direction of the light beam; wherein the first beam splitter prism is used to split the receiving light path, reflect part of the light beam to the receiving lens, and be received by the laser receiver, and transmit the remaining light path and propagate along the propagation direction of the original receiving light path.

[0011] Preferably, the first beam splitter prism is located on the propagation light path between the focusing objective lens and the differentiation plate.

[0012] Preferably, the liquid crystal display system is imaged at the second focal plane of the receiving light path, and the differentiation plate is located at the first focal plane of the receiving light path; the liquid crystal display system includes a transmissive LCD or OLED liquid crystal.

[0013] Preferably, the liquid crystal display system is imaged in the second focal plane of the receiving light path, and the splitting plate is located in the first focal plane of the receiving light path; the liquid crystal display system includes a projection OLED liquid crystal, a display lens group and a second dichroic prism arranged in sequence along the propagation direction of the light beam; wherein the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group is combined by the second dichroic prism to the receiving light path.

[0014] Preferably, the liquid crystal display system is imaged in the first focal plane of the receiving light path, and the splitting plate is located in the first focal plane of the receiving light path; the liquid crystal display system includes a projection OLED liquid crystal and a display lens group arranged in sequence along the propagation direction of the light beam; wherein the display information containing the target distance in the OLED liquid crystal imaged by the display lens group is combined by the first beam splitting prism to the receiving light path.

[0015] Preferably, the liquid crystal display system is imaged in the second focal plane of the receiving light path, and the differentiation plate is located in the first focal plane of the receiving light path; the liquid crystal display system includes a projection OLED liquid crystal and a display lens group arranged in sequence along the propagation direction of the light beam; wherein the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group is combined into the receiving light path through the first beam splitter prism; the first beam splitter prism is located in the propagation light path between the post-zoom group and the fixed eyepiece group.

[0016] Preferably, it further includes a field stop located between the zoom rear lens group and the fixed eyepiece group, and the field stop is located at the second focal plane of the receiving light path.

[0017] Preferably, a U-shaped groove is provided on the edge of the lens of the objective lens group close to the focusing objective lens, and the emitting lens is embedded in the U-shaped groove; the laser light emitting diode is located in the space between the objective lens group and the focusing objective lens.

[0018] Preferably, the magnification is changed by adjusting the optical axis position of the zoom compensation lens group between the front zoom lens group and the zoom compensation lens group.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention utilizes a built-in laser emission system, laser receiving system, and liquid crystal display system to measure target distances without disrupting the traditional design of target-spotting birdwatchers. This not only makes the device more compact and portable, but also avoids the impact of external distance sensors on the overall design.

[0021] The monocular variable magnification sight of the present invention can achieve a variable magnification range from 8x to 40x or even higher, meeting the observation needs of targets at different distances. This flexibility makes the device suitable for a variety of scenarios, whether it is close-up detailed observation or long-distance target capture.

[0022] The present invention combines different liquid crystal display solutions according to different environmental conditions and personal needs to achieve different environmental distance measurement and diversified distance measurement, target viewing and bird watching scopes.

[0023] Most target and bird-watching scopes currently on the market only offer telescopic functionality and lack range-finding capabilities, making them ineffective for trajectory correction, particularly in military training and other fields. Therefore, the present invention provides a product that retains traditional dimensions while also offering range-finding functionality, filling a market gap and possessing high market demand potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only embodiments of the present invention. Those skilled in the art can also derive other drawings based on the provided drawings without inventive effort.

[0025] Figure 1 This is a principle diagram of the optical path of a single beam splitter prism using a transmissive LCD or OLED liquid crystal provided by an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the optical path of two beam splitting prisms using a projection-type OLED liquid crystal according to an embodiment of the present invention;

[0027] Figure 3 The optical path principle of a single dichroic prism using a projection OLED liquid crystal provided by an embodiment of the present invention is Figure 1 ;

[0028] Figure 4 The optical path principle of a single dichroic prism using a projection OLED liquid crystal provided by an embodiment of the present invention is Figure 2 ;

[0029] Figure 5 Schematic diagram of the structure of an objective lens group with a built-in emitting lens provided by an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram showing a differentiation plate provided by an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of LCD or OLED distance display provided by an embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram showing a clear display of the observer's actual observation of the differentiation plate and the display distance provided by an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the 8x magnification structure of a traditional straight-tube bird-watching scope provided by an embodiment of the present invention;

[0034] Figure 10 It is a schematic diagram of the 40x magnification structure of a traditional straight-tube bird-watching telescope provided by an embodiment of the present invention.

[0035] In the figure, 1-objective lens group; 2-focusing objective lens; 3-first dichroic prism; 4-receiving lens; 5-filter; 6-laser receiver; 7-differentiation plate; 8-zoom front lens group; 9-zoom compensation lens group; 10-zoom rear lens group; 11-transmissive LCD or OLED liquid crystal; 12-fixed eyepiece group; 13-emitting lens; 14-laser light emitting diode; 15-display lens group; 16-OLED liquid crystal; 17-field stop; 18-second dichroic prism. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] The present invention discloses a range-finding, target-viewing, bird-watching telescope, such as Figure 9-10The structure of the traditional straight-tube target and bird-watching telescope shown is a monocular sight, including a receiving light path, in which the receiving light path is arranged in sequence along the propagation direction of the light beam: an objective lens group 1, a focusing objective lens 2, a differentiation plate 7, a front magnification lens group 8, a magnification compensation lens group 9, a rear magnification lens group 10 and a fixed eyepiece group 12; it should be noted that the objective lens group 1, the focusing objective lens 2, the differentiation plate 7, the front magnification lens group 8, the magnification compensation lens group 9, the rear magnification lens group 10 and the fixed eyepiece group 12 are all located in a straight-tube housing.

[0038] Based on this structure, the embodiment of the present invention also includes a laser emitting system, a laser receiving system and a liquid crystal display system arranged in a straight cylindrical housing; wherein, the laser emitting system includes a laser light emitting diode 14 and a emitting lens 13 arranged along the propagation direction of the emitting light path, and the emitting lens 13 is embedded in the objective lens group 1; the laser receiving system is arranged in the receiving light path at the front end of the fixed eyepiece group 12, and is used to convert the optical signal in the receiving light path into an electrical signal through a splitter prism, obtain the target distance and display it through the liquid crystal display system; the liquid crystal display system is arranged in the receiving light path at the front end of the fixed eyepiece group 12, and is used to combine the display information containing the target distance to the receiving light path through a splitter prism, and transmit it to the fixed eyepiece group 12.

[0039] The laser light emitting diode emits a laser, which is emitted to the target through the transmitting lens 13. The laser beam reflected by the target is received by the objective lens, and is received by the laser receiving system through the focusing objective lens 2 and the dichroic prism. The optical signal is converted into an electrical signal and processed by software to obtain the target distance and display it on the liquid crystal display system. The displayed information is received by the human eye through the fixed eyepiece group 12.

[0040] In a monocular sight, you can get the target distance by observing through the eyepiece. Through the built-in laser emitting system and laser receiving system, you can measure the distance and display the distance in real time while aiming at the object. The variable magnification design allows clear observation of targets at both long and short distances.

[0041] The monocular variable magnification scope can achieve a magnification range of 8x to 40x by adjusting the position of the magnification compensation lens group 9. If the design is adjusted, a larger magnification range can be achieved.

[0042] The present invention can meet different environments and personnel needs through different liquid crystal display solutions and reasonable optical path design. Figures 1-4 Examples of target and bird watching binoculars with different liquid crystal display solutions:

[0043] In one embodiment, Figure 1-4As shown, the laser receiving system includes a first beam splitter prism 3, a receiving lens 4 and a laser receiver 6 arranged in sequence along the propagation direction of the light beam; wherein, the first beam splitter prism 3 is used to split the receiving light path, reflect part of the light beam to the receiving lens 4, and be received by the laser receiver 6, and transmit the remaining light path and propagate along the propagation direction of the original receiving light path.

[0044] In this embodiment, a filter 5 is provided between the receiving lens 4 and the laser receiver 6, which is selected as needed based on the ambient light. The receiving system shares the objective lens assembly 1 of the monocular sight. The received signal is split by the first beam splitter prism 3 before passing through the receiving lens 4 and filter 5 and entering the laser receiver 6.

[0045] In one embodiment, Figure 1-3 As shown, the first beam splitter prism 3 is located on the propagation light path between the focusing objective lens 2 and the beam splitting plate 7 .

[0046] In this embodiment, Figure 1 As shown, the liquid crystal display system is imaged at the second focal plane of the receiving light path, and the splitting plate 7 is located at the first focal plane of the receiving light path; the liquid crystal display system is a transmissive LCD or OLED liquid crystal 11, and the first dichroic prism 3 is coated with a dichroic film on the adhesive layer that transmits visible light and reflects the laser band.

[0047] The observation and ranging process is: observe the target with a monocular sight, adjust the focusing objective lens 2, the fixed eyepiece group 12 and the variable magnification compensation lens group 9 to make the object and the differentiation plate 7 differentiation filaments clear at the same time, the laser light emitting diode 14 emits a laser, which is emitted after passing through the transmitting lens 13. After reaching the target, the light signal is reflected, and the reflected light signal passes through the objective lens group 1, the focusing objective lens 2, the first spectroscopic prism 3, the receiving lens 4, and the filter 5, and is finally received by the laser receiver 6. According to the time difference between the emitted laser and the received laser signal, the distance of the target is calculated through circuit and software processing, and the distance information is displayed on the transmissive LCD or OLED liquid crystal 11, and observed by the human eye through the fixed eyepiece group 12.

[0048] In this embodiment, Figure 2 As shown, the liquid crystal display system is imaged at the second focal plane of the receiving light path, and the splitting plate 7 is located at the first focal plane of the receiving light path; the liquid crystal display system includes a projection-type OLED liquid crystal 16, a display lens group 15, and a second beam splitter prism 18, which are sequentially arranged along the propagation direction of the light beam; wherein, the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group 15 is combined into the receiving light path through the second beam splitter prism 18, and the second beam splitter prism 18 is coated with a beam splitter film on the adhesive layer that transmits visible light, reflects the laser band, and the OLED display band.

[0049] The observation and ranging process is: observe the target with a monocular sight, adjust the focusing objective lens 2, the fixed eyepiece group 12 and the variable magnification compensation lens group 9 to make the object and the differentiation plate 7 differentiation filaments clear at the same time, the laser light emitting diode 14 emits a laser, which is emitted after passing through the transmitting lens 13. After reaching the target, the light signal is reflected, and the reflected light signal passes through the objective lens group 1, the focusing objective lens 2, the first dichroic prism 3, the receiving lens 4, and the filter 5, and is finally received by the laser receiver 6. According to the time difference between the emitted laser and the received laser signal, the distance of the target is calculated through circuit and software processing, and the distance information is displayed on the projection OLED liquid crystal 16. The projection OLED liquid crystal 16 is imaged to the position of the field stop 17 through the display lens group 15 and the second dichroic prism 18, and is observed by the human eye through the fixed eyepiece group 12.

[0050] In this embodiment, Figure 3 As shown, the liquid crystal display system is imaged at the first focal plane of the receiving light path, and the splitting plate 7 is located at the first focal plane of the receiving light path; the liquid crystal display system includes a projection-type OLED liquid crystal 16 and a display lens group 15 arranged in sequence along the propagation direction of the light beam; wherein, the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group 15 is combined into the receiving light path through the first splitter prism 3, and the first splitter prism 3 is coated with a splitter film on the adhesive layer that transmits visible light, reflects the laser band and the OLED display band.

[0051] It should be noted that the laser receiver 6 and the projection type OLED liquid crystal 16 are distributed on both sides of the optical axis of the dichroic prism.

[0052] The observation and ranging process is: observe the target to be measured with a monocular sight, adjust the focusing objective lens 2, the fixed eyepiece group 12 and the magnification compensation lens group 9 to make the object and the differentiation plate 7 differentiation fibers clear at the same time, the laser light emitting diode 14 emits a laser, which is emitted after passing through the transmitting lens 13, and the light signal is reflected after reaching the target to be measured. The reflected light signal passes through the objective lens group 1, the focusing objective lens 2, the first dichroic prism 3, the receiving lens 4, and the filter 5, and is finally received by the laser receiver 6. According to the time difference between the emitted laser and the received laser signal, the distance of the target to be measured is calculated through circuit and software processing, and the distance information is displayed on the projection OLED liquid crystal 16. The projection OLED liquid crystal 16 is imaged to the position of the differentiation plate 7 through the display lens group 15 and the first dichroic prism 3, and is observed by the human eye through the front magnification lens group 8, the magnification compensation lens group 9, the rear magnification lens group 10 and the fixed eyepiece group 12.

[0053] In one embodiment, Figure 4As shown, the liquid crystal display system forms an image at the second focal plane of the receiving light path, and the splitting plate 7 is located at the first focal plane of the receiving light path; the liquid crystal display system includes a projection-type OLED liquid crystal 16 and a display lens group 15 arranged in sequence along the propagation direction of the light beam; wherein, the display information of the target distance contained in the projection-type OLED liquid crystal 16 formed by the display lens group 15 is combined into the receiving light path via the first beam splitter prism 3; the first beam splitter prism 3 is located in the propagation light path between the zoom rear group and the fixed eyepiece group 12, and the first beam splitter prism 3 is coated on the adhesive layer with a beam splitter film that transmits visible light, reflects the laser band, and the projection OLED display band.

[0054] It should be noted that the laser receiver 6 and the projection type OLED liquid crystal 16 are distributed on both sides of the optical axis of the dichroic prism.

[0055] The observation and ranging process is: the monocular sight observes the target to be measured, adjusts the focusing objective lens 2 and the fixed eyepiece group 12 and the magnification compensation lens group 9 to make the object and the differentiation plate 7 clear at the same time, the laser light emitting diode 14 emits a laser, which is emitted after passing through the emitting lens 13. After reaching the target to be measured, the light signal is reflected, and the reflected light signal passes through the objective lens group 1, the focusing objective lens 2, the differentiation plate 7, the magnification front lens group 8, the magnification compensation lens group 9, the magnification rear lens group 10, the dichroic prism, the receiving lens 4, the filter 5, and is finally received by the laser receiver 6. According to the time difference between the emitted laser and the received laser signal, the distance of the target to be measured is calculated through circuit and software processing, and the distance information is displayed on the projection OLED liquid crystal 16. The projection OLED liquid crystal 16 is imaged to the position of the field aperture 17 through the display lens group 15 and the first dichroic prism 3, and is observed by the human eye through the fixed eyepiece group 12.

[0056] In one embodiment, the optical system further includes a field stop 17 located between the zoom lens group 10 and the fixed eyepiece group 12, and the field stop 17 is located at the second focal plane of the receiving light path. Figure 2 and Figure 4 As shown, if a field stop 17 is set on the second focal plane, the projection OLED liquid crystal 16 display unit is imaged at the second focal plane position through the display lens group 15 and the dichroic prism, as shown in FIG. Figure 3 As shown, the image can also be formed on the differentiation plate 7 at the first focal plane by the display lens group 15 and the dichroic prism, so as to achieve simultaneous clarity with the differentiation plate 7 .

[0057] It should be noted that if Figure 1 As shown, the structured aperture is placed on the surface of the transmissive LCD or OLED liquid crystal 11, and then the entire structure is placed at the second focal plane position; Figure 2-4 As shown, for the projection OLED optical path structure, the structured aperture is placed separately at the second focal plane position.

[0058] In one embodiment, Figure 5 As shown, a U-shaped groove is provided on the edge of the lens of the objective lens group 1 close to the focusing objective lens 2, and the emitting lens 13 is embedded in the U-shaped groove; the laser light emitting diode 14 is located in the space between the objective lens group 1 and the focusing objective lens 2.

[0059] In one embodiment, Figure 7 As shown, the transmissive LCD liquid crystal display unit is a transmissive black font display, and the OLED liquid crystal display unit is a luminous liquid crystal display unit, which can be a colored font such as red font or green font, or can also display a two-color font.

[0060] In one embodiment, Figure 6-8 As shown, the display content of the differentiation board 7 and the liquid crystal display content are at different positions in the field of view, which can be determined according to different needs.

[0061] In one embodiment, the magnification is changed by adjusting the optical axis position of the zoom compensating lens group 9 between the front zoom lens group 8 and the zoom compensating lens group 9 .

[0062] The optical system's first focal plane houses a diaphragm 7, while the second focal plane houses a field stop 17. The front and rear zoom lens groups 8 and 10 remain fixed in position. The compensating zoom lens group 9 is moved to achieve zoom focusing from 8x to 40x, or even greater. The operating principle involves aiming at a distant target or bird, adjusting the fixed eyepiece group 12 to bring the diaphragm 7 into focus, and adjusting the focusing objective lens 2 to bring the object into focus. Observation is then performed by adjusting the magnification based on the object's distance.

[0063] The above is a detailed introduction to the range-finding, target-sighting and bird-watching telescope provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of the present invention. At the same time, for those skilled in the art, according to the idea of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as limiting the present invention.

[0064] In this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

Claims

1. A rangefinder, target-viewing, birdwatching scope, comprising a receiving optical path, wherein the receiving optical path is provided with, in sequence along the direction of light beam propagation, an objective lens group, a focusing objective lens, a splitter plate, a front zoom lens group, a zoom compensation lens group, a rear zoom lens group, and a fixed eyepiece group; characterized in that: It also includes: a laser emitting system, a laser receiving system and a liquid crystal display system; wherein, The laser emission system includes a laser light emitting diode and an emission lens arranged along the propagation direction of the emission light path, and the emission lens is embedded in the objective lens group; The laser receiving system is arranged in the receiving optical path at the front end of the fixed eyepiece assembly, and is used to convert the optical signal in the receiving optical path into an electrical signal via a beam splitter prism, and obtain the target distance and display it via the liquid crystal display system; The liquid crystal display system is arranged in the receiving light path at the front end of the fixed eyepiece group, and is used to combine the display information containing the target distance into the receiving light path through a beam splitter prism, and transmit it to the fixed eyepiece group.

2. The range-finding and target-viewing bird-watching telescope according to claim 1, characterized in that: The laser receiving system includes a first beam splitter prism, a receiving lens and a laser receiver arranged in sequence along the propagation direction of the light beam; wherein the first beam splitter prism is used to split the receiving light path, reflect part of the light beam to the receiving lens, and be received by the laser receiver, and transmit the remaining light path and propagate along the propagation direction of the original receiving light path.

3. The distance measuring and target viewing bird watching telescope according to claim 2, characterized in that: The first beam splitter prism is located on the propagation light path between the focusing objective lens and the beam splitting plate.

4. A distance measuring and target viewing bird watching telescope according to claim 1, 2 or 3, characterized in that: The liquid crystal display system is imaged at the second focal plane of the receiving light path, and the differentiation plate is located at the first focal plane of the receiving light path; the liquid crystal display system includes a transmissive LCD or OLED liquid crystal.

5. A distance measuring and target viewing bird watching telescope according to claim 1, 2 or 3, characterized in that: The liquid crystal display system is imaged at the second focal plane of the receiving light path, and the splitting plate is located at the first focal plane of the receiving light path; the liquid crystal display system includes a projection-type OLED liquid crystal, a display lens group, and a second beam splitter prism, which are sequentially arranged along the propagation direction of the light beam; wherein the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group is combined by the second beam splitter prism to the receiving light path.

6. A distance measuring and target viewing bird watching telescope according to claim 2 or 3, characterized in that: The liquid crystal display system is imaged at a first focal plane of the receiving light path, and the splitting plate is located at the first focal plane of the receiving light path; the liquid crystal display system includes a projection-type OLED liquid crystal and a display lens group arranged in sequence along the propagation direction of the light beam; wherein, the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group is combined by the first beam splitting prism to the receiving light path.

7. The range-finding and target-viewing bird-watching telescope according to claim 2, characterized in that: The liquid crystal display system is imaged at the second focal plane of the receiving light path, and the differentiation plate is located at the first focal plane of the receiving light path; the liquid crystal display system includes a projection-type OLED liquid crystal and a display lens group arranged in sequence along the propagation direction of the light beam; wherein, the display information of the target distance contained in the OLED liquid crystal imaged by the display lens group is combined into the receiving light path through the first beam splitter prism; the first beam splitter prism is located on the propagation light path between the post-zoom group and the fixed eyepiece group.

8. The range-finding and target-viewing bird-watching telescope according to claim 1, characterized in that: It also includes a field stop located between the zoom rear lens group and the fixed eyepiece group, and the field stop is located at the second focal plane of the receiving light path.

9. The range-finding and target-viewing bird-watching telescope according to claim 1, characterized in that: The objective lens group is provided with a U-shaped groove at the edge of the lens near the focusing objective lens, and the emitting lens is embedded in the U-shaped groove; the laser light emitting diode is located in the space between the objective lens group and the focusing objective lens.

10. The range-finding and target-viewing bird-watching telescope according to claim 1, characterized in that: The magnification is changed by adjusting the optical axis position of the zoom compensation lens group between the front zoom lens group and the zoom compensation lens group.

Images