A function integrated infrared lens

Abstract

The utility model relates to a kind of function integrated infrared lens, including lens barrel, focusing drive part is equipped on the lens barrel, focusing drive part is connected with the focusing dynamic member transmission in the lens barrel by transmission assembly;The infrared lens also includes menu function operating part, the menu function operating part is movably integrated assembly on focusing drive part and is connected with the menu function selection module in the lens barrelIn the utility model, the menu function operating part is movably integrated assembly on focusing drive part, the integration coupling of focusing function and menu function can be realized, reduce the arrangement space and operating space required, beneficial to the structural design of infrared lens;Focusing function and menu function are executed at the same position, can greatly improve the convenience of infrared lens / related product operation, while meeting the use habit of right-hand operation crowd and left-hand operation crowd, improve experience good feeling.

Description

Technical Field

[0001] This utility model belongs to the field of infrared lens technology, specifically relating to a functionally integrated infrared lens. Background Technology

[0002] Existing infrared products generally feature focusing lenses. Furthermore, with the development and expansion of infrared product functions, many products require function switching and selection, typically achieved using left / right buttons plus a menu button. Currently, on lenses that simultaneously offer focusing and menu switching / selection functions, the focusing and menu operation units are generally positioned front and back on the camera body (focus unit in front, menu operation unit in back, or vice versa). This arrangement requires relatively large placement and operation space on the lens. When the two are arranged sequentially along the circumference of the camera body, for example, with the menu operation unit on the left or right side, it can be inconvenient for right-handed / left-handed users, impacting the user experience of the infrared product. Utility Model Content

[0003] This utility model relates to a functionally integrated infrared lens, which can at least solve some of the defects of the prior art.

[0004] This utility model relates to a functionally integrated infrared lens, including a lens barrel, on which a focusing drive unit is provided, and the focusing drive unit is connected to a focusing actuator inside the lens barrel through a transmission component.

[0005] The infrared lens also includes a menu function operation unit, which is movably integrated and mounted on the focusing drive unit and connected to the menu function selection module inside the lens barrel.

[0006] As one embodiment, the focusing drive unit includes a focusing knob, which is rotatably mounted on the outer wall of the lens barrel, and the rotation axis of the focusing knob is perpendicular to the optical axis inside the lens barrel.

[0007] As one embodiment, the focusing knob is provided with a hollow clearance hole, and the menu function operation part has a transmission rod, which passes through the hollow clearance hole and is connected to the menu function selection module.

[0008] As one embodiment, a first annular guide seat is provided on the outer wall of the lens barrel. The inner annular hole of the first annular guide seat is connected to the inner cavity of the lens barrel and the hollow clearance hole respectively. The transmission rod passes through the hollow clearance hole and the first annular guide seat in sequence and is connected to the menu function selection module.

[0009] As one embodiment, the transmission assembly includes a cooperating curved cylinder and a guide pin. The curved cylinder is coaxially and fixedly connected to the focusing knob, and the guide pin passes through the lens barrel and is connected to the focusing actuator.

[0010] As one embodiment, a second annular guide seat is provided on the outer wall of the lens barrel, a cover cavity is formed inside the focusing knob, and the curved cylinder is housed in the cover cavity, wherein the inner wall of the cover cavity is in clearance fit with the outer annular wall of the second annular guide seat, and the outer wall of the curved cylinder is in clearance fit with the inner annular wall of the second annular guide seat.

[0011] As one embodiment, the focusing actuator includes a movement frame and a detector disposed on the movement frame, the movement frame being connected to the transmission assembly.

[0012] As one embodiment, the movement frame is a cylindrical frame, and a guide cylinder coaxial with the optical axis is formed inside the lens barrel. The movement frame and the guide cylinder are coaxially guided and cooperated.

[0013] As one embodiment, the movement frame is slidably embedded in the guide cylinder, and an annular sealing groove is coaxially provided on the outer wall of the movement frame, and a sealing ring is provided in the annular sealing groove.

[0014] As one embodiment, the menu function operation unit includes a function knob, and the menu function selection module includes a menu encoder that is pulsatorically connected to the function knob. The function knob is rotatably mounted on the focusing drive unit and is at least partially exposed outside the focusing drive unit.

[0015] This utility model has at least the following beneficial effects:

[0016] In this invention, the menu function operation unit is movably integrated and mounted on the focusing drive unit, which can realize the integrated coupling of the focusing function and the menu function, reduce the required layout space and operating space, and facilitate the structural design of the infrared lens; the focusing function and the menu function are executed in the same position, which can greatly improve the convenience of operating the infrared lens / related products, while meeting the usage habits of both right-handed and left-handed users, and improving the user experience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1A schematic diagram of the structure of the infrared lens provided in this embodiment of the utility model;

[0019] Figure 2 An exploded view of the infrared lens provided in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram showing the fit between the curved cylinder and the guide pin;

[0021] Figure 4 This is a schematic diagram of the movement frame. Detailed Implementation

[0022] The technical solutions in the embodiments of this utility model are described clearly and completely below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] like Figure 1 and Figure 2 This utility model provides a functionally integrated infrared lens, including a lens barrel 1. The lens barrel 1 is provided with a focusing drive unit, which is connected to the focusing actuator inside the lens barrel 1 through a transmission assembly.

[0024] The infrared lens also includes a menu function operation unit, which is movably integrated and mounted on the focusing drive unit and connected to the menu function selection module inside the lens barrel 1.

[0025] The menu function operation unit is movably integrated into the focus drive unit, specifically, the menu function operation unit is movable relative to the focus drive unit. The movability of the menu function operation unit includes, but is not limited to, rotation, linear movement, or combinations thereof.

[0026] In one embodiment, such as Figure 1 and Figure 2 The focusing drive unit includes a focusing knob 21, which is rotatably mounted on the outer wall of the lens barrel 1. The rotation axis of the focusing knob 21 is perpendicular to the optical axis inside the lens barrel 1.

[0027] Based on the aforementioned settings of the focusing knob 21, optionally, as follows: Figures 1-3The transmission assembly includes a coaxial curved cylinder 22 and a guide pin 23. The curved cylinder 22 is coaxially and fixedly connected to the focusing knob 21, and the guide pin 23 passes through the lens barrel 1 and is connected to the focusing actuator. The curved cylinder 22 and the focusing knob 21 are detachably connected, including but not limited to, by means of screws; the guide pin 23 is fixedly connected to the focusing actuator, preferably by a detachable connection, including but not limited to threaded connections and snap-fit ​​connections.

[0028] The focusing knob 21 drives the curved cylinder 22 to rotate. The guide pin 23 and the curved guide groove 221 on the curved cylinder 22 are guided and engaged, allowing the guide pin 23 to move linearly along the lens barrel axis, thereby driving the focusing actuator to move linearly and achieving the focusing purpose. The axis of the guide pin 23 is parallel to the axis of the curved cylinder 22. The curved guide groove 221 is formed on the axial end of the curved cylinder 22 near the lens barrel 1, allowing for smooth engagement with the guide pin 23 that passes through the lens barrel 1. Optionally, the distance between the center trajectory line of the curved guide groove 221 (which is the set of midpoints of the two side walls of the curved guide groove 221, and the movement trajectory of the guide pin axis coincides with this center trajectory line) and the axis of the curved cylinder 22 gradually changes. Based on the guidance of the curved guide groove 221, the radius of motion of the guide pin 23 relative to the axis of the curved cylinder gradually changes, thereby causing the guide pin 23 to perform linear reciprocating motion. For example, if the distance between one end of the center trajectory line and the axis of the curved cylinder is R1 (starting radius), and the distance between the other end of the center trajectory line and the axis of the curved cylinder is R2 (ending radius), then the difference between R2 and R1 is the moving stroke of the guide pin 23, i.e., the focusing stroke. The above structure is simple, facilitates the setting and connection of various transmission components, and can ensure the cooperation effect between the guide pin 23 and the curved cylinder 22, thereby ensuring the smooth movement and focusing accuracy of the guide pin 23 and the focusing actuator.

[0029] Based on the requirement for the guide pin 23 to perform linear reciprocating motion, a slotted movable window needs to be opened on the lens barrel 1. The length of this slotted movable window (the length direction is parallel to the lens barrel axis) meets the linear stroke requirement of the guide pin 23. Preferably, the width of the slot of the guide pin 23 matches that of the slotted movable window, so that the slotted movable window can reliably guide the reciprocating motion of the guide pin 23. For example, there is a clearance fit between the guide pin 23 and the two side slot walls of the slotted movable window.

[0030] Based on the above-mentioned setting of the focusing knob 21, it is convenient to make the menu function operation part movable and to connect with the menu function selection module. For example, a hole can be made in the focusing knob 21 to install the menu function operation part. Here, the movement between the menu function operation part and the focusing knob 21 can be independent and do not interfere with each other, which also facilitates the connection with the menu function selection module; in particular, a hole can be made at the rotation axis of the focusing knob 21 to install the menu function operation part.

[0031] Specifically, such as Figure 1 and Figure 2 The focusing knob 21 has a hollow clearance hole, and the menu function operation unit has a transmission rod 32. The transmission rod 32 passes through the hollow clearance hole and connects to the menu function selection module. The hollow clearance hole extends through both axial ends of the focusing knob 21, allowing the operating end of the menu function operation unit to protrude from the focusing knob 21 and facilitating the transmission rod 32 to pass through and connect to the menu function selection module. As described above, the hollow clearance hole is preferably formed at the rotation axis of the focusing knob 21; for example, the axis of the hollow clearance hole coincides with the axis of the focusing knob 21.

[0032] As an optional embodiment, such as Figure 1 and Figure 2 The outer wall of the lens barrel 1 is provided with a first annular guide seat 13. The inner annular hole of the first annular guide seat 13 is connected to the inner cavity of the lens barrel 1 and the hollow clearance hole respectively. The transmission rod 32 passes through the hollow clearance hole and the first annular guide seat 13 in sequence and is connected to the menu function selection module.

[0033] Preferably, there is a clearance fit between the transmission rod 32 and the inner ring wall of the first annular guide seat 13 to ensure the smooth operation of the transmission rod 32. Furthermore, an annular sealing groove is coaxially provided on the outer wall of the transmission rod 32 and a sealing ring is provided in the annular sealing groove. This not only effectively improves the waterproof and dustproof performance of the infrared lens, but also eliminates the gap between the transmission rod 32 and the first annular guide seat 13 through the elasticity of the sealing ring, thereby improving the accuracy of menu function operation.

[0034] The focusing knob 21 can be configured with a guide ring that fits with the outer ring wall of the first annular guide seat 13 with a clearance, which can improve the rotation smoothness and positional accuracy of the focusing knob 21. When a curved cylinder 22 is provided, the inner ring wall of the curved cylinder 22 can be fitted with the outer ring wall of the first annular guide seat 13 with a clearance, which can also improve the rotation smoothness and positional accuracy of the focusing knob 21. Both of the above structures can be used at the same time, which can effectively improve the reliability and smoothness of the focusing operation.

[0035] As an optional embodiment, such as Figure 1 and Figure 2 The outer wall of the lens barrel 1 is provided with a second annular guide seat 14, the focusing knob 21 has a cover cavity, the curved cylinder 22 is housed in the cover cavity, wherein the inner wall of the cover cavity is in clearance fit with the outer annular wall of the second annular guide seat 14, and the outer wall of the curved cylinder 22 is in clearance fit with the inner annular wall of the second annular guide seat 14.

[0036] In the above structure, by forming a cavity in the focusing knob 21, it is not only convenient for its integrated assembly with the curved cylinder 22, but also convenient for the cooperation between the focusing knob 21, the second annular guide seat 14, and the curved cylinder 22, which can improve the reliability and smoothness of the focusing operation.

[0037] Furthermore, an annular sealing groove can be coaxially provided on the inner wall of the cover cavity, and a sealing ring can be provided in the annular sealing groove. This can not only effectively improve the waterproof and dustproof performance of the infrared lens, but also eliminate the gap between the focusing knob 21 and the second annular guide seat 14 through the elasticity of the sealing ring, thereby improving the accuracy of menu function operation.

[0038] In one embodiment, such as Figure 1 and Figure 2 The menu function operation unit includes a function knob 31, which can rotate relative to the focusing drive unit; when the focusing drive unit includes a focusing knob 21, the function knob 31 can rotate relative to the focusing knob 21, and the rotation of the two do not interfere with each other; when the menu function operation unit has a transmission rod 32, the transmission rod 32 is connected to the function knob 31, and preferably is integrally formed with the function knob 31.

[0039] In some embodiments, the focusing knob 21 can be constrained by the function knob 31, thus binding the focusing knob 21 to the lens barrel 1 and restricting its axial movement, allowing it to only rotate. For example, in... Figure 1 and Figure 2 In the middle, the function knob 31 / transmission rod 32 is fixedly connected to the menu function selection module, and the focusing knob 21 is axially constrained on the outside, while the focusing knob 21 is axially constrained on the inside by the lens barrel 1; wherein, a pressure ring 34 can be used to press the focusing knob 21 onto the outer wall of the lens barrel 1, and the function knob 31 can press the pressure ring 34 onto the first annular guide seat 13 mentioned above, and the transmission rod 32 passes through the pressure ring 34.

[0040] In another embodiment, the focusing knob 21 can be pressed onto the outer wall of the lens barrel 1 by the pressure ring 34 and the pressure ring 34 can be detachably fixed to the first annular guide seat 13.

[0041] When the menu function operation section includes a function knob 31, preferably, such as Figure 1 and Figure 2 The menu function selection module includes a menu encoder 33 that is kinetically connected to a function knob 31, which is rotatably mounted on the focusing drive unit and at least partially exposed outside the focusing drive unit. The menu encoder 33 is electrically connected to a PCB board disposed within the infrared lens or in a related product (e.g., an infrared product).

[0042] In one embodiment, such as Figure 1 , Figure 2 as well as Figure 4 The focusing actuator includes a frame 12 and a detector mounted on the frame 12, which is connected to the transmission assembly. Based on this design, the focusing operation is achieved by positioning the focusing detector, allowing the focusing drive unit to be located rearward, closer to the operator, making focusing more convenient and improving user experience.

[0043] Furthermore, such as Figure 1 , Figure 2 as well as Figure 4 The mechanism frame 12 is a cylindrical frame, and a guide cylinder 11 coaxial with the optical axis is formed inside the lens barrel 1. The mechanism frame 12 and the guide cylinder 11 are coaxially guided and cooperated, which can improve the coaxiality of the detector and the lens group, thereby ensuring the stability of the optical axis in the infrared lens.

[0044] Furthermore, such as Figure 1 , Figure 2 as well as Figure 4 The mechanism frame 12 is slidably embedded in the guide cylinder 11. The outer wall of the mechanism frame 12 is coaxially provided with an annular sealing groove 121 and a sealing ring is provided in the annular sealing groove 121. In this way, the elasticity of the sealing ring can eliminate the gap between the mechanism frame 12 and the guide cylinder 11, ensuring that the optical axis does not deviate during the smooth transmission of the mechanism frame 12.

[0045] Optionally, such as Figure 1 , Figure 2 as well as Figure 4 A connecting arm 122 can be provided on the mechanism frame 12 to facilitate connection with the transmission components. For example, the connecting arm 122 can be connected to the guide pin 23. The connection methods include, but are not limited to, threaded connection, snap-fit, plug-in connection, etc.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A functionally integrated infrared lens, comprising a lens barrel, characterized in that, The lens barrel is provided with a focusing drive unit, which is connected to the focusing actuator inside the lens barrel via a transmission assembly. The infrared lens also includes a menu function operation unit, which is movably integrated and mounted on the focusing drive unit and connected to the menu function selection module inside the lens barrel.

2. The infrared lens as described in claim 1, characterized in that: The focusing drive unit includes a focusing knob, which is rotatably mounted on the outer wall of the lens barrel, and the rotation axis of the focusing knob is perpendicular to the optical axis inside the lens barrel.

3. The infrared lens as described in claim 2, characterized in that: The focusing knob is provided with a hollow clearance hole, and the menu function operation part has a transmission rod, which passes through the hollow clearance hole and is connected to the menu function selection module.

4. The infrared lens as described in claim 3, characterized in that: The outer wall of the lens barrel is provided with a first annular guide seat. The inner annular hole of the first annular guide seat is connected to the inner cavity of the lens barrel and the hollow clearance hole respectively. The transmission rod passes through the hollow clearance hole and the first annular guide seat in sequence and is connected to the menu function selection module.

5. The infrared lens as described in claim 2, characterized in that: The transmission assembly includes a coaxial curved cylinder and a guide pin. The curved cylinder is coaxially and fixedly connected to the focusing knob, and the guide pin passes through the lens barrel and is connected to the focusing actuator.

6. The infrared lens as described in claim 5, characterized in that: The outer wall of the lens barrel is provided with a second annular guide seat, the focusing knob has a cavity, the curved cylinder is housed in the cavity, wherein the inner wall of the cavity is in clearance fit with the outer annular wall of the second annular guide seat, and the outer wall of the curved cylinder is in clearance fit with the inner annular wall of the second annular guide seat.

7. The infrared lens as described in any one of claims 1 to 6, characterized in that: The focusing actuator includes a movement frame and a detector mounted on the movement frame, the movement frame being connected to the transmission assembly.

8. The infrared lens as described in claim 7, characterized in that: The movement frame is a cylindrical frame, and a guide cylinder coaxial with the optical axis is formed inside the lens barrel. The movement frame and the guide cylinder are coaxially guided and fitted together.

9. The infrared lens as described in claim 8, characterized in that: The movement frame is slidably embedded in the guide cylinder, and an annular sealing groove is coaxially provided on the outer wall of the movement frame, with a sealing ring provided in the annular sealing groove.

10. The infrared lens as described in claim 1, characterized in that: The menu function operation unit includes a function knob, and the menu function selection module includes a menu encoder that is pulsatorically connected to the function knob. The function knob is rotatably mounted on the focusing drive unit and is at least partially exposed outside the focusing drive unit.

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