Optical ranging device with optical image stabilization function

Abstract

An optical ranging device includes a transmitting component, a receiving component, a first OIS module, a limiting mechanism and a control module. The emitting component emits a detection beam travel toward an object to be measured and is reflected by the object to form a reflected beam. The reflected beam is received by the receiving component. The first OIS module corresponds to the transmitting component and includes a first lens having a first optical axis and a first compensation component. As the detection beam passes through the first lens, the first compensation component moves the first lens relative to the emitting component, whereby the detection beam is maintained to reach the object to be measured. As the reflected light beam passes through the second lens, the second compensation components move the second lens relative to the receiving component, whereby the reflected light beam is maintained to be received by the receiving component. The limiting mechanism is joined to the first OIS module and to limit the stroke of the first lens. The control module is electrically connected to the first compensation component, and controls the first compensation component to move the first optical axis of the first lens. The first OIS module includes a driving member and a limiting member. The driving member drives the limiting member to move in a locking-unlocking stroke.

Description

[Technical Field]

[0001] This invention relates to an optical device with anti-shake function, and more particularly to an anti-shake distance measuring optical device. [Previous Technology]

[0002] Existing laser ranging devices include a transmitting component, a receiving component, and a sight. The user aims the sight at the distant object to be measured. The transmitting component emits a laser beam to illuminate the object to be measured. The laser beam is then reflected by the object to be measured and received by the receiving component, thereby measuring the distance of the object to be measured.

[0003] However, when a user aims at a distant object with a scope, the slight shaking of the user's hand may sometimes prevent the user from maintaining a consistent aim at the object during the distance measurement process, thus preventing the laser beam from accurately illuminating the object and thus failing to measure the distance accurately. This is especially true when the object is far away, as slight shaking of the human body can easily cause the laser beam to deviate from the object. [Summary of the Invention]

[0004] In view of this, the object of the present invention is to provide an anti-shake distance measuring optical device that solves the problem that prior art laser distance measuring devices cannot accurately measure distances due to user body shaking.

[0005] An embodiment of the anti-shake ranging optical device of the present invention includes a transmitting component, a receiving component, a first anti-shake module, a limiting mechanism, and a control module. The transmitting component emits a detection beam, which illuminates the object to be measured and is reflected by the object to form a reflected beam. The reflected beam is received by the receiving component. The first anti-shake module corresponds to the transmitting component and includes a first lens and a first compensation component. The first lens has a first optical axis, the detection beam passes through the first lens, and the first compensation component causes the first lens to move relative to the transmitting component so that the detection beam continues to illuminate the object to be measured. The limiting mechanism is coupled to the first compensation component and limits the movement stroke of the first lens. The control module is electrically connected to the first compensation component and controls the first compensation component so that the first optical axis of the first lens moves or is centered and fixed within the movement stroke of the limiting mechanism; wherein the first compensation component includes a driving member and a limiting member, the driving member driving the limiting member to move within the stroke limited by the limiting mechanism.

[0006] In another embodiment, it further includes a telescope assembly having an objective lens end, an eyepiece end and a telescope optical axis. The telescope assembly corresponds to the emitting assembly. The telescope optical axis is coincident with the first optical axis. The detection beam is transmitted to the object under test via the telescope assembly and the first lens. The first compensation assembly moves the first lens relative to the telescope assembly so that the light emitted by the object under test is imaged on the eyepiece end via the telescope assembly.

[0007] In another embodiment, it further includes a second anti-shake module corresponding to the receiving component. The second anti-shake module includes a second lens and a second compensation component. The second lens has a second optical axis. The reflected light beam passes through the second lens. The second compensation component allows the second lens to move relative to or be centered and fixed with respect to the receiving component. A limiting mechanism is combined with the second compensation component and limits the movement stroke of the second lens. The control module controls the second compensation component according to the detection of the motion sensor, so that the second optical axis of the second lens moves synchronously with the first axis of the first lens or is centered and fixed within the movement stroke limited by the limiting mechanism.

[0008] In another embodiment, it further includes a telescope assembly having an objective lens end, an eyepiece end and a telescope optical axis. The telescope assembly corresponds to the receiving assembly. The telescope optical axis is coincident with the second optical axis. The reflected light beam is transmitted to the receiving assembly via the second lens and the telescope assembly. The second compensation assembly causes the second lens to move relative to the telescope assembly, so that the light emitted by the object under test is imaged on the eyepiece end via the telescope assembly.

[0009] In another embodiment, it further includes a telescope assembly and a third anti-shake module. The telescope assembly has an objective lens end, an eyepiece end, and a telescope optical axis. The third anti-shake module includes a third lens and a third compensation assembly. The third lens has a third optical axis that coincides with the telescope optical axis. The third compensation assembly causes the third lens to move relative to the telescope assembly, so that the light emitted by the object under test is imaged on the eyepiece end by the telescope assembly. The first lens is disposed on a first cross-section perpendicular to the first optical axis, the second lens is disposed on a second cross-section perpendicular to the second optical axis, and the third lens is disposed on a third cross-section perpendicular to the third optical axis. The third cross-section is parallel to the first cross-section and parallel to the second cross-section. The third compensation assembly is electrically connected to a control module. The control module controls the third compensation assembly to move the third optical axis of the third lens synchronously with the first optical axis of the first lens and the second optical axis of the second lens, wherein the allowable error of the synchronous movement is ±0.1 degrees.

[0010] In another embodiment, the first optical axis of the first lens and the second optical axis of the second lens have the same moving speed; the first lens is disposed on a first cross section perpendicular to the first optical axis, and the second lens is disposed on a second cross section perpendicular to the second optical axis, wherein the first cross section and the second cross section are parallel or coincident.

[0011] In another embodiment, the first compensation component further includes a base, a movable platform, a first coil, and a first magnet. The movable platform is movably disposed on the base, the first lens is disposed on the movable platform, the first coil is disposed on the base, and the first magnet is disposed on the movable platform. The first coil and the first magnet generate an electromagnetic interaction, causing the movable platform to move on the base along a first direction. The first coil is electrically connected to a control module. The dimensions of each part of the first compensation component satisfy any of the following conditions or any combination thereof: 0.25≦(ξmax / (φ2max-φ4))≦0.5; 0.475≦(ξmin / (φ2m))≦0.5; in-φ3))≦0.525;0.5≦(φ3 / φ1)≦0.7;0.65≦(φ3 / φ2max)≦0.75;0.495≦ξmax / (φ2max-φ2min)≦0.55, where φ1 is a diameter of the first compensation component, φ2 is an inner diameter of the limiting member corresponding to the movable platform, φ2max is the maximum value of φ2, φ2min is the minimum value of φ2, φ3 is the outer diameter of the movable platform corresponding to the limiting member, ξ is the gap between the limiting member and the movable platform, ξmax is the maximum value of ξ, ξmin is the minimum value of ξ, and φ4 is the inner diameter of the movable platform.

[0012] In another embodiment, the first compensation component further includes a second coil, a second magnet, a first position sensor, and a second position sensor. The second coil is disposed on the base, and the second magnet is disposed on the movable stage. The second coil and the second magnet generate electromagnetic interaction to move the movable stage on the base along a second direction. The second coil is electrically connected to the control module. The second direction is orthogonal to the first direction, and the first optical axis is perpendicular to the first and second directions. The first and second position sensors are both electrically connected to the control module. The control module controls the current flowing through the first coil and / or the second coil based on the position of the first magnet detected by the first position sensor and / or the position of the second magnet detected by the second position sensor. The limiting mechanism restricts the movable stage to have the same travel range as the first and second directions.

[0013] In another embodiment, the limiting mechanism includes a first limiting module, which includes a first limiting pin, a second limiting pin, a first limiting hole, and a second limiting hole. The first limiting pin and the second limiting pin are disposed on the movable platform, and the first limiting hole and the second limiting hole are formed on the base. The movable platform is limited in the first direction by the first limiting pin abutting against the wall of the first limiting hole, and the movable platform is limited in the second direction by the second limiting pin abutting against the wall of the second limiting hole. The total travel of the movable platform is at most ±0.8mm. The first compensation component further includes a driving member, which drives the limiting member to move between the locking position and the releasing position. The second compensation component has the same structure as the first compensation component.

[0014] In another embodiment, the first compensation component further includes a first position sensor and a second position sensor, both of which are electrically connected to the control module. The control module controls the current flowing through the first coil and / or the second coil based on the position of the first magnet detected by the first position sensor and / or the position of the second magnet detected by the second position sensor.

[0015] In another embodiment, the limiting member is disposed on the base, and the locking unlocking stroke includes a movement path between a locking position and a releasing position. When the limiting member moves to the locking position, the limiting member abuts against the movable platform, thereby positioning the movable platform. When the limiting member moves to the releasing position, the limiting member separates from the movable platform, and the movable platform can move relative to the base.

[0016] The anti-shake ranging optical device of the present invention is provided with a first anti-shake module corresponding to the transmitting component and a second anti-shake module corresponding to the receiving component. When the user performs ranging, in response to slight shaking of the user's body, the first anti-shake module compensates for the movement of the optical path of the detection beam of the transmitting component, and simultaneously compensates for the movement of the optical path of the reflected beam by the second anti-shake module. This allows the detection beam to accurately illuminate the object to be measured, and the reflected beam to be accurately received by the receiving component, thus compensating for the influence of the user's body shaking and accurately measuring the distance. [Simplified Explanation of the Diagram]

[0079] Figure 1 is a schematic diagram of the configuration of the first embodiment of the anti-shake ranging optical device of the present invention.

[0080] Figure 2 is a schematic diagram of the configuration of a second embodiment of the anti-shake ranging optical device of the present invention.

[0081] Figure 3 is a schematic diagram of the configuration of the third embodiment of the anti-shake ranging optical device of the present invention.

[0082] Figure 4 is a perspective view of an embodiment of the first compensation component of the first anti-shake module of the anti-shake ranging optical device of the present invention.

[0083] Figure 5 is a three-dimensional exploded view of the first compensation component of the first anti-shake module in Figure 4.

[0084] Figure 6 shows the limiting mechanism of the first compensation component in Figure 5 from different perspectives.

[0085] Figure 7 is a top view of the base of the first compensation component in Figure 6.

[0086] Figure 8 is a bottom view of the movable platform of the first compensation component in Figure 6.

[0087] Figure 9 is a top view of the first compensation component of Figure 4 with the top cover removed, which shows the state of the limiting member in the locking position (right) and the releasing position (left).

Implementation Method

[0088] Please refer to Figure 1, which shows a first embodiment of the anti-shake ranging optical device of the present invention. The anti-shake ranging optical device 1 of this embodiment includes a transmitting component 10, a receiving component 20, a first anti-shake module 30, a second anti-shake module 40, a control module 50, and a telescope component 60.

[0089] In this embodiment, the emitting component 10 is integrated with the telescope component 60. The emitting component 10 includes a light source 11 and a reflector 12. The telescope component 60 includes a lens group 61 and a prism 62. The lens group 61 includes an objective lens end 611, an eyepiece end 612, and a telescope optical axis 613. The objective lens end 611 faces the object to be measured, and the eyepiece end 612 is close to the user's eye. The prism 62 is integrated into the optical path of the lens group 61. The reflector 12 is positioned close to the prism 62, so that the optical paths of the emitting component 10 and the telescope component 60 coincide at the objective lens end 611. The light source 11 emits a detection beam, which is reflected by the reflector 12 and the prism 62 and then projected onto the object to be measured through the objective lens end 611 of the lens group 61. In this embodiment, the light source 11 can be, for example, a laser diode, and the detection beam is a laser beam. Visible or infrared light emitted by the object under test is incident from the objective lens end 611 of the lens assembly 61 and imaged onto the eyepiece end 612. In this way, the user can observe and aim at the object under test through the telescope assembly 60, and then the detection beam is projected onto the object under test through the optical path of the telescope assembly 60 at the objective lens end 611.

[0090] The receiving component 20 includes a receiver 21 and a light receiver 22. After the detection beam shines on the object under test, it is reflected by the object under test to form a reflected beam. The reflected beam is converged by the light receiver 22 and then received by the receiver 21.

[0091] The first anti-shake module 30 corresponds to the transmitting component 10 and the telescope component 60. The first anti-shake module 30 includes a first lens 31 and a first compensation component 32. The first lens 31 is disposed within the lens group 61 of the telescope component 60. The first lens 31 has a first optical axis 311, which coincides with the telescope optical axis 613. When the detection beam passes through the lens group 61, it also passes through the first lens 31. The first compensation component 32 causes the first lens 31 to move relative to the transmitting component 10. Thus, when the user's body shakes, the detection beam will deviate slightly in response to the shaking of the body. The movement of the first lens 31 can compensate for the slight deviation of the detection beam, so that the detection beam continues to illuminate the object under test. Since the first optical axis 311 coincides with the telescope optical axis 613, the movement of the first lens 31 also simultaneously compensates for and fine-tunes the optical path of visible light or infrared light from the object under test, allowing the user to keep aiming at the object under test with the telescope component 60. The first lens element 31 can be a spherical lens, an aspherical lens, or a liquid lens.

[0092] The second anti-shake module 40 corresponds to the receiving component 20. The second anti-shake module 40 includes a second lens 41 and a second compensation component 42. The second lens 41 has a second optical axis 411. The reflected light beam passes through the light-receiving component 22 and the second lens 41 and is received by the receiving component 21. The second compensation component 42 causes the second lens 41 to move relative to the receiving component 21. Thus, when the user's body shakes, the reflected light beam will also deviate slightly in response to the shaking of the body. The movement of the second lens 41 can compensate for the slight deviation of the reflected light beam, so that the reflected light beam continues to travel to the receiving component 21. The second lens 41 can be a spherical lens, an aspherical lens, or a liquid lens.

[0093] The control module 50 is electrically connected to the first compensation component 32 and the second compensation component 42, and controls the first compensation component 32 and the second compensation component 42 to move the first lens 31 and the second lens 41, and to move the first lens 31 and the second lens 41 synchronously, that is, the first optical axis 311 of the first lens 31 and the second optical axis 411 of the second lens 41 move synchronously, so as to synchronously compensate and finely adjust the optical paths of the detection beam and the reflected beam, thereby ensuring that the detection beam accurately illuminates the object under test and that the reflected beam is accurately received by the receiver 21. The control module 50 measures the state of human body shaking based on a motion sensor (e.g., an electronic gyroscope) installed in the anti-shake ranging optical device 1, thereby controlling the first compensation component 32 and the second compensation component 42 to move the first lens 31 and the second lens 41. Since human body shaking will change the incident angle of the detection beam onto the object to be measured, and the reflection angle of the reflected beam will also change, the optical paths of the detection beam and the reflected beam will change simultaneously. Therefore, the control module 50 synchronously controls the first compensation component 32 and the second compensation component 42 to move the first lens 31 and the second lens 41, which can instantly and synchronously fine-tune and compensate the optical paths of the detection beam and the reflected beam, so as to keep the detection beam accurately illuminating the object to be measured and the receiving component 20 accurately receiving the reflected beam, thereby obtaining an accurate distance measurement result.

[0094] The control module 50 controls the first compensation component 32 and the second compensation component 42 to make the first lens 31 and the second lens 41 move at the same speed, that is, the first compensation component 32 and the second compensation component 42 have the same sensitivity, thereby ensuring that the first optical axis 311 of the first lens 31 and the second optical axis 411 of the second lens 41 move synchronously. It is further explained that the same sensitivity refers to synchronous movement, and the allowable error of synchronous movement is ±0.1 degrees. Within this allowable error range, it can be regarded as synchronous movement. The first compensation component 32 and the second compensation component 42 in this embodiment have the same structure. As illustrated in FIG1, the first lens 31 of the first anti-shake module 30 in the telescope component 60 is disposed on the first cross section P1 perpendicular to the first optical axis 311, and the second lens 41 of the second anti-shake module 40 is disposed on the second cross section P2 perpendicular to the second optical axis 411. The first cross section P1 and the second cross section P2 are parallel to each other. Therefore, the first lens 31 of the first anti-shake module 30 and the second lens 41 of the second anti-shake module 40 are not located on the same cross section that is perpendicular to both the first optical axis 311 and the second optical axis 411. In other words, the first lens 31 and the second lens 41 are not aligned, so that there is room below the prism 62 to assemble suitable components (such as a power supply unit), which makes the overall structure simple. The structure will be explained in the following paragraphs.

[0095] Although the transmitting component 10 in this embodiment is integrated with the telescope component 60, the present invention is not limited thereto. In other embodiments, the receiving component 20 may also be integrated with the telescope component 60, that is, the reflected light beam enters the lens group 61 from the objective lens end 611 of the lens group 61 of the telescope component 60, and then reaches the receiver 21 after being reflected by the prism 62. The first anti-shake module 30 corresponds to the transmitting component 10 to compensate for and fine-tune the optical path of the detection beam, and the second anti-shake module 40 corresponds to the receiving component 20 and the telescope component 60 to compensate for and fine-tune the optical path of the reflected light beam.

[0096] Please refer to Figure 2, which shows a second embodiment of the anti-shake ranging optical device of the present invention. This embodiment has some of the same structure as the first embodiment, therefore the same elements are given the same reference numerals and their descriptions are omitted. The difference between this embodiment and the first embodiment is that the transmitting component 10 and the receiving component 20 are separately arranged and not integrated with the telescope component 60.

[0097] The anti-shake ranging optical device 1 of this embodiment further includes a third anti-shake module 70. The third anti-shake module 70 includes a third lens 71 and a third compensation component 72. The third lens 71 has a third optical axis 711. The third lens 71 is disposed within the lens group 61 of the telescope assembly 60. The third optical axis 711 of the third lens 71 coincides with the telescope optical axis 613. The third compensation component 72 moves the third lens 71 relative to the telescope assembly 60, so that the visible light or infrared light emitted by the object under test is imaged on the eyepiece end 612 by the telescope assembly 60, allowing the user to keep aiming at the object under test with the telescope assembly 60. The third lens 71 can be a spherical lens, an aspherical lens, or a liquid lens.

[0098] The third compensation component 72 is electrically connected to the control module 50. The control module 50 controls the third compensation component 72 so that the third lens 71 moves synchronously with the first lens 31 and the second lens 41, that is, the third optical axis 711 of the third lens 71 moves synchronously with the first optical axis 311 of the first lens 31 and the second optical axis 411 of the second lens 41. Furthermore, the moving speed of the third lens 71 is the same as that of the first lens 31 and the second lens 41, thereby giving the first compensation component 32, the second compensation component 42 and the third compensation component 72 the same sensitivity. As illustrated in Figure 2, the first lens 31 of the first anti-shake module 30 is disposed on a first section P1 perpendicular to the first optical axis 311, the second lens 41 of the second anti-shake module 40 is disposed on a second section P2 perpendicular to the second optical axis 411, and the third lens 71 of the telescope component 60 is disposed on a third section P3 perpendicular to the third optical axis 711. The first section P1 coincides with the second section P2, and the third section P3 is parallel to the first section P1 and the second section P2. Therefore, the third lens 71 in the telescope assembly 60, the first lens 31 of the first anti-shake module 30, and the second lens 41 of the second anti-shake module 40 are not located on the same cross section that is simultaneously perpendicular to the third optical axis 711, the first optical axis 311, and the second optical axis 411. However, the first lens 31 of the first anti-shake module 30 and the second lens 41 of the second anti-shake module 40 are simultaneously located on a cross section that is perpendicular to the third optical axis 711, the first optical axis 311, and the second optical axis 411. In other words, the third lens 71 is not simultaneously aligned with the first lens 31 and the first lens 41, so that there is space below the prism 62 to accommodate suitable components (such as a power supply unit), making the overall structure simple. The third compensation assembly 72 has the same structure as the first compensation assembly 32 and the second compensation assembly 42.

[0099] Please refer to Figure 3, which shows a third embodiment of the anti-shake ranging optical device of the present invention. This embodiment has some of the same structure as the second embodiment, therefore the same elements are given the same reference numerals and their descriptions are omitted. The difference between this embodiment and the second embodiment is that the anti-shake ranging optical device 1 of this embodiment does not have a telescope component, the transmitting component 10 and the receiving component 20 are separately arranged, the first anti-shake module 30 corresponds to the transmitting component 10, and the second anti-shake module 40 corresponds to the receiving component 20. As illustrated in Figure 3, the first lens 31 of the first anti-shake module 30 is disposed on a first section P1 perpendicular to the first optical axis 311, and the second lens 41 of the second anti-shake module 40 is disposed on a second section P2 perpendicular to the second optical axis 411. The first section P1 and the second section P2 coincide. Therefore, the first lens 31 of the first anti-shake module 30 and the second lens 41 of the second anti-shake module 40 are located on the same section that is perpendicular to both the first optical axis 311 and the second optical axis 411.

[0100] Please refer to Figures 4 and 5, which show the structure of one embodiment of the first compensation component. Since the second and third compensation components have the same structure as the first compensation component, the first compensation component will be used as an example for explanation. The first compensation component 32 includes a base 321, a movable platform 322, a first coil 323, a second coil 324, a first magnet 325, a second magnet 326, a limiting member 327, and a driving member 328.

[0101] The base 321 includes a base 3211, a boss 3212 disposed on the base 3211, a plurality of support portions 3213 erected from the edge of the base 3211, and a top cover 3214 covering the base 3211 and supported by the support portions 3213. The boss 3212 is provided with a plurality of balls 3215, and the movable platform is disposed on the boss 3212 of the base 321 and is supported by the plurality of balls 3215. The movable platform 322 has a protruding lens mounting seat 3221 and two adjacent magnet mounting seats 3222 and 3223, and the lens mounting seat 3221 is provided with four abutting protrusions 3224.

[0102] The first lens 31 is disposed on the lens mounting base 3221 of the movable platform 322, and the first magnet 325 and the second magnet 326 are respectively disposed on the magnet mounting bases 3222 and 3223. The first coil 323 and the second coil 324 are respectively disposed on the base 3211 and located on the adjacent sides of the boss 3212.

[0103] When current passes through the first coil 323 and the second coil 324, the magnetic fields generated by the current in the first coil 323 and the second coil 324 interact with the magnetic fields of the first magnet 325 and the second magnet 326, causing the movable stage 322 to move on the base 321 along the first direction D1 and / or the second direction D2, thereby causing the first lens 31 on the movable stage 322 to move along the first direction D1 and / or the second direction D2. The first direction D1 and the second direction D2 are orthogonal to each other, and both the first direction D1 and the second direction D2 are perpendicular to the first optical axis 311.

[0104] The first coil 323 and the second coil 324 are electrically connected to the control module 50. The control module 50 controls the current values ​​of the first coil 323 and the second coil 324 according to the compensation movement distance required by the first lens 31.

[0105] The first compensation component 32 further includes a first position sensor 329a and a second position sensor 329b. The first position sensor 329a and the second position sensor 329b are both electrically connected to the control module 50. The control module 50 detects the position of the first magnet 325 by the first position sensor 329a and / or detects the position of the second magnet 326 by the second position sensor 329b. The first position sensor 329a and the second position sensor 329b transmit detection signals to the control module 50. The control module 50 controls the current flowing through the first coil 323 and / or the second coil 324 according to the detection signals.

[0106] Please refer to Figures 6, 7, and 8. The anti-shake ranging optical device 1 of this embodiment further includes a limiting mechanism, which includes a first limiting module 81 and a second limiting module. The first limiting module 81 is coupled to the first compensation component 32. The first limiting module 81 includes a first limiting pin 811, a second limiting pin 812, a first limiting hole 813, and a second limiting hole 814. The first limiting pin 811 and the second limiting pin 812 are disposed on the surface of the movable platform 322 near the base 321. The first limiting hole 813 and the second limiting hole 814 are formed on the surface of the base 321 near the movable platform 322. The first limiting pin 811 extends into the first limiting hole 813, and the second limiting pin 812 extends into the second limiting hole 814. When the movable platform 322 moves relative to the base 321, the first limiting pin 811 abuts against the wall of the first limiting hole 813 in the first direction D1, thereby limiting the movement of the movable platform 322 in the first direction D1. At the same time, the second limiting pin 812 abuts against the wall of the second limiting hole 814 in the second direction D2, thereby limiting the movement of the movable platform 322 in the second direction D2. Moreover, the range of movement of the movable platform 322 in the first direction D1 is the same as the range of movement of its movement in the second direction D2. In this embodiment, the maximum total travel distance (i.e., displacement) of the movable stage 322 is ±0.8 mm. To further clarify, the same sensitivity refers to synchronous movement, and the allowable error for synchronous movement is ±0.1 degrees. Within this allowable error range, it can be considered synchronous movement. However, the range will differ when calculating the movement distance using magnification. For example, 0.1 degrees in a 6x optical system corresponds to a lens movement distance of approximately 0.17 mm, and 0.1 degrees in a 10x optical system corresponds to a lens movement distance of approximately 0.07 mm. It can be observed that ((total travel distance - lens movement distance) / total travel distance) * magnification) is approximately equal to 11 ± 25%. For a 6x optical system, this is ((0.8 - 0.17) / 0.8) / 6 = 13%, and for a 10x optical system, it is ((0.8 - 0.07) / 0.8) / 10 = 9%. Furthermore, the field of view (field of) The movable stage 322 has a maximum total travel of approximately ±0.8 mm, allowing for simultaneous adaptation to different incident apertures and viewing angles. As illustrated in Figure 1, the objective lens 611 of the telescope assembly 60 may not have the same aperture and viewing angle as the receiver assembly 20. Therefore, the movable stage 322's sufficient travel range can simultaneously address different apertures, viewing angles, and the requirement for a synchronous movement tolerance of ±0.1 degrees. The second limiting module has the same structure as the first limiting module 81, and will not be described further here.

[0107] Please refer to Figure 9, which shows the state of the limiting member in the locking position and the releasing position. The limiting member 327 is disposed on the upper cover 3214 of the base 321. The upper cover 3214 has an opening 3214a. The lens mounting base 3221 of the movable platform 322 protrudes from the upper cover 3214 through the opening 3214a. The limiting member 327 is rotatably disposed on the upper cover 3214. The limiting member 327 is annular and has four abutting teeth 3271 on its inner periphery and a driving tooth 3272 on its outer periphery. The driving tooth 3272 meshes with the gear on the output shaft of the driving member 328. Thus, the driving member 328 can drive the limiting member 327 to move within a locking unlocking stroke. The locking unlocking stroke includes the movement path between the locking position and the releasing position. Additionally, the upper cover 3214 has a limiting post 3214b and 3214c on each side of the drive tooth 3272 to limit the rotation stroke of the limiting member 327. When the drive tooth 3272 of the limiting member 327 abuts against the limiting posts 3214b and 3214c on both sides, the limiting member 327 is in the locking position and the releasing position, respectively.

[0108] When the limiting member 327 is rotated to the locking position (right side view of FIG9), the abutting tooth 3271 of the limiting member 327 abuts against the abutting protrusion 3224. At this time, the movable stage 322 is restricted by the limiting member 327 and cannot move. Therefore, the anti-shake function of the anti-shake ranging optical device 1 is turned off. When the limiting member 327 is rotated to the release position (left side view of FIG9), the abutting tooth 3271 of the limiting member 327 does not abut against the abutting protrusion 3224. The movable stage 322 can move in the first direction D1 and the second direction D2. Therefore, the anti-shake function of the anti-shake ranging optical device 1 is turned on.

[0109] The dimensions of each part of the first compensation component 32 satisfy any one of the following conditions or any combination thereof: the diameter φ1 of the first compensation component 32 is in the range of 9.25mm φ1 11.9mm; the inner diameter φ2 of the limiting member 327 corresponding to the movable platform 322 is in the range of 6.5mm φ2 8.9mm; the outer diameter φ3 of the movable platform 322 corresponding to the limiting member 327 is in the range of 4.2mm φ3 6.4mm; the gap ξ between the limiting member 327 and the movable platform 322 is in the range of 0.05mm ξ 1.25mm. 0.25≦(ξmax / (φ2max-φ4))≦0.5……………………………………Formula 1; 0.475≦(ξmin / (φ2min-φ3))≦0.525…………………………………Formula 2; 0.5≦(φ3 / φ1)≦0.7……………………………………………………Formula 3; 0.65≦(φ3 / φ2max)≦0.75………………………………………………Formula 4; 0.495≦ξmax / (φ2max-φ2min)≦0.55…………………………………Formula 5, where φ2max is the maximum value of φ2. φ2min is the minimum value of φ2, ξmax is the maximum value of ξ, ξmin is the minimum value of ξ, φ4 is the inner diameter of the movable stage 322, wherein the first lens 31 is disposed on the movable stage 322, so the inner diameter of the movable stage 322 is the incident light diameter of the first lens 31; wherein when any of the formulas 1-5 are satisfied, the movable stage 322 can be moved within an allowable range in the release position, and its range of movement is also the range of movement of the first lens 31, while in the locking position, the movable stage 322 can be appropriately fixed, and also the tolerance of the anti-shake ranging optical device 1 assembly limiting mechanism and its overall size compatibility (miniaturization).

[0110] The anti-shake ranging optical device of the present invention is provided with a first anti-shake module corresponding to the transmitting component and a second anti-shake module corresponding to the receiving component. When the user performs ranging, in response to slight shaking of the user's body, the first anti-shake module compensates for the movement of the optical path of the detection beam of the transmitting component, and simultaneously compensates for the movement of the optical path of the reflected beam by the second anti-shake module. This allows the detection beam to accurately illuminate the object to be measured, and the reflected beam to be accurately received by the receiving component, thus compensating for the influence of the user's body shaking and accurately measuring the distance.

[0111] However, the above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Any simple equivalent changes and modifications made in accordance with the claims and description of the invention are still within the scope of the patent. Furthermore, any embodiment or claim of the present invention does not need to achieve all the objectives, advantages, or features disclosed in the present invention. In addition, the abstract and headings are merely for assisting in patent document searches and are not intended to limit the scope of the invention.

Claims

1. A hand-shake-resistant distance measuring optical device for detecting the distance to an object, the hand-shake-resistant distance measuring optical device comprising: A transmitting component emits a detection beam that illuminates the object under test and is reflected by the object under test to form a reflected beam; A receiving component, the reflected light beam is received by the receiving component; a first anti-shake module, corresponding to the transmitting component, the first anti-shake module includes a first lens and a first compensation component, the first lens has a first optical axis, the detection light beam passes through the first lens, the first compensation component allows the first lens to move relative to or be centered and fixed with respect to the transmitting component; a limiting mechanism, combined with the first compensation component, the limiting mechanism limits a movement stroke of the first lens; a control module, electrically connected to the first compensation component and a motion sensor, controls the first compensation component according to the detection of the motion sensor, so that the first optical axis of the first lens moves or is centered and fixed within the movement stroke limited by the limiting mechanism; a first... The second anti-shake module, corresponding to the receiving component, includes a second lens and a second compensation component. The second lens has a second optical axis, through which the reflected light beam passes. The second compensation component allows the second lens to move relative to or be centered and fixed with respect to the receiving component. A limiting mechanism is attached to the second compensation component and limits the movement stroke of the second lens. The control module controls the second compensation component based on the detection of the motion sensor, so that the second optical axis of the second lens moves synchronously with or is centered and fixed with the first axis of the first lens within the movement stroke limited by the limiting mechanism. The first compensation component includes a driving member and a limiting member, and the driving member drives the limiting member to move within the stroke.

2. The anti-shake ranging optical device as described in claim 1 further includes a telescope assembly having an objective lens end, an eyepiece end, and a telescope optical axis. The telescope assembly corresponds to the emitting assembly, and the telescope optical axis coincides with the first optical axis. The detection beam is transmitted to the object under test via the telescope assembly and the first lens. The first compensation assembly causes the first lens to move relative to the telescope assembly, so that the light emitted by the object under test is imaged on the eyepiece end via the telescope assembly.

3. The anti-shake ranging optical device as described in claim 1 further includes a telescope assembly having an objective lens end, an eyepiece end, and a telescope optical axis. The telescope assembly corresponds to the receiving assembly. The telescope optical axis partially coincides with the second optical axis. The reflected light beam is transmitted to the receiving assembly via the second lens and the telescope assembly. The second compensation assembly causes the second lens to move relative to the telescope assembly, so that the light emitted by the object under test is imaged on the eyepiece end via the telescope assembly.

4. The anti-shake ranging optical device as described in claim 1, further comprising a telescope assembly and a third anti-shake module, wherein the telescope assembly has an objective lens end, an eyepiece end, and a telescope optical axis, and the third anti-shake module includes a third lens and a third compensation assembly, the third lens having a third optical axis that coincides with the telescope optical axis, and the third compensation assembly causing the third lens to move relative to the telescope assembly, so that the light emitted by the object under test is imaged onto the eyepiece end by the telescope assembly; the first lens is disposed perpendicular to the objective lens. The first optical axis has a first cross section, the second lens is disposed on a second cross section perpendicular to the second optical axis, and the third lens is disposed on a third cross section perpendicular to the third optical axis. The third cross section is parallel to the first cross section and the third cross section is parallel to the second cross section. The third compensation component is electrically connected to the control module. The control module controls the third compensation component to make the third optical axis of the third lens move synchronously with the first optical axis of the first lens and the second optical axis of the second lens. The allowable error of the synchronous movement is ±0.1 degrees.

5. A hand-shake-resistant distance measuring optical device for detecting the distance to an object, the hand-shake-resistant distance measuring optical device comprising: A transmitting component emits a detection beam that illuminates the object under test and is reflected by the object under test to form a reflected beam; A receiving component, the reflected light beam is received by the receiving component; a first anti-shake module, corresponding to the transmitting component, the first anti-shake module includes a first lens and a first compensation component, the first lens has a first optical axis, the detection light beam passes through the first lens, the first compensation component allows the first lens to move relative to or be centered and fixed with respect to the transmitting component; a limiting mechanism, combined with the first compensation component, the limiting mechanism limits a movement stroke of the first lens; a control module, electrically connected to the first compensation component and a motion sensor, controls the first lens according to the detection of the motion sensor. A compensation component enables the first optical axis of the first lens to move or be centered and fixed within the travel limit restricted by the limiting mechanism; a second anti-shake module includes a second lens; wherein the first compensation component includes a driving member and a limiting member, the driving member driving the limiting member to move within the travel limit; wherein the first optical axis of the first lens and the second optical axis of the second lens have the same moving speed; the first lens is disposed on a first cross-section perpendicular to the first optical axis, and the second lens is disposed on a second cross-section perpendicular to the second optical axis, the first cross-section and the second cross-section being parallel or coincident.

6. The anti-shake ranging optical device as described in any one of claims 1 to 5, wherein the first compensation component further includes a base, a movable stage, a first coil, and a first magnet, the movable stage being movably disposed on the base, the first lens being disposed on the movable stage, the first coil being disposed on the base, the first magnet being disposed on the movable stage, the first coil and the first magnet generating an electromagnetic interaction to cause the movable stage to move on the base along a first direction, the first coil being electrically connected to the control module; wherein the dimensions of each part of the first compensation component satisfy any one of the following conditions or any combination thereof: 0.25≦(ξmax / (φ2max-φ4))≦0.5; 0.475≦(ξmin / (φ2min-φ3))≦0.525; 0.5≦(φ3 / φ1)≦0.7; 0.65≦(φ3 / φ2max)≦0.75; 0.495≦ξmax / (φ2max-φ2min)≦0.55, where φ1 is a diameter of the first compensation component, φ2 is an inner diameter of the limiting member corresponding to the movable platform, φ2max is the maximum value of φ2, φ2min is the minimum value of φ2, φ3 is the outer diameter of the movable platform corresponding to the limiting member, ξ is the gap between the limiting member and the movable platform, ξmax is the maximum value of ξ, ξmin is the minimum value of ξ, and φ4 is the inner diameter of the movable platform.

7. The anti-shake ranging optical device as described in claim 6, wherein the first compensation component further includes a second coil, a second magnet, a first position sensor, and a second position sensor. The second coil is disposed on the base, and the second magnet is disposed on the movable platform. The second coil and the second magnet generate electromagnetic interaction to move the movable platform on the base along a second direction. The second coil is electrically connected to the control module. The second direction is orthogonal to the first direction, and the first optical axis is perpendicular to the first direction and the second direction. The first position sensor and the second position sensor are both electrically connected to the control module. The control module controls the current flowing through the first coil and / or the second coil based on the position of the first magnet detected by the first position sensor and / or the position of the second magnet detected by the second position sensor. The limiting mechanism restricts the movable platform to have the same travel range as the first direction and the second direction.

8. The anti-shake ranging optical device as described in claim 7, wherein the limiting mechanism includes a first limiting module, the first limiting module including a first limiting pin, a second limiting pin, a first limiting hole and a second limiting hole, the first limiting pin and the second limiting pin being disposed on the movable platform, the first limiting hole and the second limiting hole being formed in the base, wherein the first limiting pin abuts against the wall of the first limiting hole to limit the movement of the movable platform in the first direction, and the second limiting pin abuts against the wall of the second limiting hole to limit the movement of the movable platform in the second direction.

9. The anti-shake ranging optical device as described in claim 7, wherein the limiting member is disposed on the base, and the locking unlocking stroke includes a movement path between a locking position and a releasing position, wherein when the limiting member moves to the locking position, the limiting member abuts against the movable platform, thereby centering and fixing the movable platform, and when the limiting member moves to the releasing position, the limiting member separates from the movable platform, and the movable platform can move relative to the base.

10. A hand-shake-resistant distance measuring optical device for detecting the distance to an object, the hand-shake-resistant distance measuring optical device comprising: A transmitting component emits a detection beam that illuminates the object under test and is reflected by the object under test to form a reflected beam; A receiving component, the reflected light beam being received by the receiving component; a first anti-shake module, corresponding to the transmitting component, the first anti-shake module including a first lens and a first compensation component, the first lens having a first optical axis, the detection light beam passing through the first lens, the first compensation component allowing the first lens to move relative to or be centered and fixed relative to the transmitting component; a limiting mechanism, coupled to the first compensation component, the limiting mechanism limiting a movement stroke of the first lens; and a control module, electrically connected to the first compensation component and a motion sensor, controlling the first compensation component according to the detection of the motion sensor, such that the first optical axis of the first lens moves or is centered and fixed within the movement stroke limited by the limiting mechanism; wherein the first compensation component includes a driving member to... The first compensation component further includes a base, a movable platform, a first coil, and a first magnet. The movable platform is movably disposed on the base, the first lens is disposed on the movable platform, the first coil is disposed on the base, and the first magnet is disposed on the movable platform. The first coil and the first magnet generate an electromagnetic interaction, causing the movable platform to move on the base along a first direction. The first coil is electrically connected to the control module. The dimensions of each part of the first compensation component satisfy any of the following conditions or any combination thereof: 0.25≦(ξmax / (φ2max-φ4))≦0.5; 0.475≦(ξmin / (φ2min-φ3))≦0.525; 0.5≦(φ3 / φ1)≦0.7; 0.65≦(φ3 / φ2max)≦0.75; 0.495≦ξmax / (φ2max-φ2min)≦0.55, where φ1 is a diameter of the first compensation component, φ2 is an inner diameter of the limiting member corresponding to the movable platform, φ2max is the maximum value of φ2, φ2min is the minimum value of φ2, φ3 is the outer diameter of the movable platform corresponding to the limiting member, ξ is the gap between the limiting member and the movable platform, ξmax is the maximum value of ξ, ξmin is the minimum value of ξ, and φ4 is the inner diameter of the movable platform.

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