Electrically driven flip lens cover

Abstract

The application provides an electric turnover lens cover. Through a connecting rod mechanism, the lens cover is switched between an unfolded state shown in Fig. 1 and a protection state shown in Fig. 2 when the lens cover is turned by 90 degrees. The effect of the original lens cover being turned by more than 180 degrees around a rotation axis is achieved, the situation of the lens cover having a large windward area during the turning process is avoided, the influence of wind resistance is reduced, and the environmental adaptability is strong.

Description

Technical Field

[0001] This application relates to the field of optoelectronic equipment technology, and in particular to an electrically operated flip lens cover. Background Technology

[0002] Optoelectronic equipment is often subjected to erosion by wind, sand and rain during use, which can cause corrosion or contamination of the lens, thereby reducing the performance and lifespan of the equipment. Therefore, a protective cover, also known as a lens cap, is often installed in front of the optical lens of the optoelectronic equipment.

[0003] Lens caps commonly come in two opening and closing methods: manual and electric. Manual lens caps are suitable for general cameras or applications where manual opening is convenient. Electric lens caps are more widely used. Many optoelectronic devices are mounted on the top of armored vehicles or on ship masts and need to open and close automatically while in motion. This requires electric operation to flip the lens open and close. Common electric flip lens caps are generally driven by gearboxes, synchronous belts, etc., rotating the lens cap more than 180° via a pivot to open it. Under normal circumstances, this method can achieve the opening and closing function well. However, considering the operating environment of armored vehicles or ships, when the vehicle is on a bumpy road or the ship is in high sea states, coupled with strong winds, the lens cap is prone to failure to open or even damage. Summary of the Invention

[0004] The purpose of this invention is to provide an electrically operated flip lens cap that, through a linkage mechanism, allows the lens cap to rotate 90° to achieve... Figure 1 Lens cap open state and Figure 2 The lens cap protection mode can be switched. It achieves the effect of rotating the lens cap more than 180° around the rotation axis, avoiding the large windward area of ​​the lens cap during the rotation process, reducing the impact of wind resistance, and making it highly adaptable to the environment.

[0005] This invention provides an electrically adjustable lens cap, comprising:

[0006] The slider mechanism includes a linear motor module 8 and a slider 7, wherein the linear motor module 8 is used to drive the slider 7 to perform linear motion;

[0007] Linkage 3 6 is connected to the slider 7 and lens cover plate 5 respectively via two pins 2 9, and is fixed with cotter pins 10 to prevent it from falling off;

[0008] The dual rocker mechanism consists of a first connecting rod 2, a second connecting rod 3, and a lens cover plate 5. The first connecting rod 2 and the second connecting rod 3 are connected to the side wall of the optical instrument 12 by a pin 11, and can rotate freely and are connected to the lens cover plate 5.

[0009] In some embodiments, the linear motor module 8 drives the slider 7 to move linearly, and the connecting rod 6 drives the double rocker mechanism to rotate, thereby rotating the lens cover 5 to achieve an open or closed state.

[0010] In some embodiments, the slider mechanism controls the dual rocker mechanism to achieve the self-locking function of the lens cover 5.

[0011] In some embodiments, the lengths of the first connecting rod 2 and the second connecting rod 3, and the position of the connection point of the lens cover plate 5, enable the lens cover plate 5 to extend a certain length H beyond the lens 1 in the open state, thereby ensuring the field of view of the optoelectronic device sensor. It can be used as a sunshade without blocking the light.

[0012] In some embodiments, the slider 7 of the linear motor module 8 moves linearly via a lead screw and has a self-contained positioning mechanism to control its position, ensuring that the lens cover 5 can achieve both closed and open states.

[0013] In some embodiments, in the dual rocker mechanism, the second link 3 is limited by the fixed point B of the first link 2 at the left extreme position and by the limiting rod 4 at the right extreme position, ensuring that the second link 3 rotates within a limited angle range.

[0014] This invention provides an optical device having an electrically rotating lens cap as described in any of the above embodiments.

[0015] The beneficial effects of the above embodiments include:

[0016] This invention provides an electrically operated flip lens cap that, through a linkage mechanism, allows the lens cap to switch between an open and protected state while rotating 90°. This achieves the effect of a traditional lens cap flipping more than 180° around its axis, avoiding the large windward area during the flipping process, reducing wind resistance, and demonstrating strong environmental adaptability. Attached Figure Description

[0017] The accompanying drawings illustrate, by way of example and not limitation, the various embodiments discussed herein.

[0018] Figure 1 Diagram showing the lens cap in its unfolded state;

[0019] Figure 2 This is a diagram showing the lens cap protection status.

[0020] Symbol explanation:

[0021] 1-Lens; 2-Link 1; 3-Link 2; 4-Limiting rod; 5-Lens cap; 6-Link 3; 7-Slider; 8-Linear motor module; 9-Pin 2; 10-Cotter pin; 11-Pin 1; 12-Optical instrument. Detailed Implementation

[0022] In order to gain a more detailed understanding of the features and technical content of the embodiments of this application, the implementation of the embodiments of this application will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration only and are not intended to limit the embodiments of this application.

[0023] In the embodiments described in this application, it should be noted that, unless otherwise stated and limited, the term "connection" should be interpreted broadly. For example, it can be an electrical connection, or a connection between two internal components. It can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above term according to the specific circumstances.

[0024] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those illustrated or described herein.

[0025] The electric flip lens cover of the present invention is driven by the linear motor module 8 to drive the linear motion of the slider 7, which in turn drives the flipping of the double rocker mechanism composed of the first link 2, the second link 3, and the lens cover 5 through the third link 6, so that the lens cover 5 rotates 90° around points A and B to reach the open or closed state.

[0026] The present invention provides an electrically operated flip lens cap that, through a linkage mechanism, enables the lens cap to rotate 90° to achieve... Figure 1 Lens cap open state and Figure 2 The lens cap protection mode can be switched. It achieves the effect of rotating the lens cap more than 180° around the rotation axis, avoiding the large windward area of ​​the lens cap during the rotation process, reducing the impact of wind resistance, and making it highly adaptable to the environment.

[0027] The present invention provides an electrically operated flip lens cap that achieves self-locking of the lens cap via a lead screw, thereby preventing the lens cap from not closing properly or opening completely due to vibration of the base body or strong winds.

[0028] The electric flip lens cover of the present invention uses a linear motor module 8 to drive the linear motion of a slider mechanism composed of a slider 7, thereby moving the lens cover plate to achieve flipping. The flipping action is large, the movement is smooth, and it is easy to drive.

[0029] The present invention provides an electrically operated flip lens cover that, through the design of the lengths of connecting rod 2 and connecting rod 3 and the position of the connection point of the lens cover plate 5, allows the lens cover plate 5 to flip in the open state, such as... Figure 1 As shown, lens 1 extends a certain length H to ensure the field of view of the photoelectric device sensor. Provided it is not obstructed, it can be used as a sunshade to reduce the exposure of sunlight and the influence of stray light.

[0030] The electric flip lens cover of the present invention uses a linear motor module 8, on which the slider 7 can move linearly through a lead screw. It has a built-in positioning mechanism that can control the moving position and ensure that the lens cover can achieve both closed and open states.

[0031] Linkage 36 is connected to slider 7 and lens cover plate 5 respectively via two pins 29, and is prevented from detaching by cotter pin 10;

[0032] Link 1 2 and Link 2 3 are connected to the side wall of optical instrument 12 by pin 11, can rotate freely, and are connected to lens cover plate 5 to form a double rocker mechanism.

[0033] In the double rocker mechanism, link 2 3 is limited by fixed point B of link 1 2 at the left extreme position and by limiting rod 4 at the right extreme position, so that link 2 3 can rotate within a limited angle range;

[0034] The electric flip lens cap of the present invention, when unfolded, leaves a certain length H to block direct sunlight and stray light.

[0035] In this invention, the slider 7, driven by the linear motor module 8, moves to the right, and the connecting rod 3 6 drives the double rocker mechanism composed of connecting rod 1 2, connecting rod 2 3, and lens cover plate 5 to rotate, so that the lens cover plate 5 rotates 90° around points A and B and reaches the open state.

[0036] The slider 7 driven by the linear motor module 8 moves to the left, and through the connecting rod 3 6, it drives the double rocker mechanism composed of connecting rod 1 2, connecting rod 2 3, and lens cover plate 5 to rotate, so that the lens cover plate 5 rotates 90° around points A and B and reaches the closed state.

[0037] The present invention provides an electrically operated flip lens cap that, through a linkage mechanism, enables the lens cap to rotate 90° to achieve... Figure 1 Lens cap open state and Figure 2 The lens cap protection mode is switched. It achieves the effect of rotating the lens cap 180° around the rotation axis, avoiding the large windward area of ​​the lens cap during the rotation process, reducing the impact of wind resistance, and making it highly adaptable to the environment.

[0038] The electric flip lens cover of the present invention uses a linear motor module 8 to drive the linear motion of a slider mechanism composed of a slider 7, thereby moving the lens cover plate to achieve flipping. The flipping action is large, the movement is smooth, and it is easy to drive.

[0039] The present invention provides an electrically operated flip lens cover that, through the design of the lengths of connecting rod 2 and connecting rod 3 and the position of the connection point of the lens cover plate 5, allows the lens cover plate 5 to flip in the open state, such as... Figure 1 As shown, lens 1 extends a certain length H, ensuring the field of view of the optical instrument. When not obstructed, it can be used as a sunshade to reduce sunlight and stray light.

[0040] This invention provides a technical solution for an electrically adjustable lens cap, such as... Figure 1 and Figure 2 As shown, the electrically adjustable lens cap includes:

[0041] Linear motor module (8): As the source of driving force, it is responsible for driving the slider (7) to perform linear motion.

[0042] Slider (7): Driven by linear motor module (8), it performs linear motion.

[0043] Link 3 (6): Connects slider (7) and lens cover plate (5), is connected to slider (7) and lens cover plate (5) by pin 2 (9), and is fixed with cotter pin (10) to prevent it from falling off.

[0044] The dual rocker mechanism consists of a first connecting rod (2), a second connecting rod (3), and a lens cover plate (5). The first connecting rod (2) and the second connecting rod (3) are connected to the side wall of the optical instrument (12) via a first pin (11) and are connected to the lens cover plate (5).

[0045] The working mechanism of this electrically adjustable lens cap is as follows:

[0046] The linear motor module (8) drives the slider (7) to move linearly, and through the connecting rod three (6), it drives the double rocker mechanism to flip, so that the lens cover (5) rotates 90° around points A and B, and reaches the open or closed state.

[0047] Through the design of the linkage mechanism, the lens cover (5) can switch between the unfolded state and the protected state when it rotates 90°, reducing the impact of wind resistance and enhancing environmental adaptability.

[0048] The lens cover (5) is self-locking via a lead screw, which avoids problems such as the lens cover not closing properly or not opening completely due to vibration of the base or wind.

[0049] The linear motor module (8) drives the slider mechanism composed of the slider (7) to move linearly, thereby moving the lens cover plate (5) to achieve flipping. It has a large rotational power arm, smooth movement, and is easy to drive.

[0050] The lengths of connecting rod 1 (2) and connecting rod 2 (3) and the position of the lens cover plate (5) are designed so that the lens cover plate (5) extends a certain length H beyond the lens (1) in the open state, ensuring the field of view of the optoelectronic device sensor. While not blocking sunlight, it can also be used as a sunshade to reduce the impact of sunlight and stray light.

[0051] The slider (7) of the linear motor module (8) moves linearly through the lead screw and has a self-contained positioning mechanism to control the movement position and ensure that the lens cover (5) can achieve both closed and open states.

[0052] In the double rocker mechanism, link 2 (3) is limited by the fixed point B of link 1 (2) at the left extreme position and by the limiting rod (4) at the right extreme position, ensuring that link 2 (3) rotates within a limited angle range.

[0053] This invention provides an optical device having an electrically rotating lens cover as described in any of the above embodiments.

[0054] The technical solutions described in the embodiments of this application can be combined arbitrarily without conflict.

[0055] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An electrically operated flip lens cap, characterized in that, include: The slider mechanism includes a linear motor module (8) and a slider (7), wherein the linear motor module (8) is used to drive the slider (7) to perform linear motion; Linkage 3 (6) is connected to the slider (7) and lens cover plate (5) respectively by two pins 2 (9), and is fixed with cotter pins (10) to prevent it from falling off; The dual rocker mechanism consists of connecting rod one (2), connecting rod two (3) and the lens cover plate (5). The connecting rod one (2) and the connecting rod two (3) are connected to the side wall of the optical instrument (12) by a pin one (11), and can rotate freely and are connected to the lens cover plate (5). The linear motor module (8) drives the slider (7) to move linearly, and the connecting rod (6) drives the double rocker mechanism to rotate, so that the lens cover (5) rotates to achieve the open or closed state. The slider mechanism controls the dual rocker mechanism to achieve the self-locking function of the lens cover (5); The lengths of the first connecting rod (2) and the second connecting rod (3) and the position of the connection point of the lens cover plate (5) enable the lens cover plate (5) to extend a certain length H beyond the lens (1) in the open state, ensuring the field of view of the optoelectronic device sensor. It can be used as a sunshade without blocking the light; The slider (7) of the linear motor module (8) moves linearly through the lead screw and has a self-contained positioning mechanism to control the movement position, ensuring that the lens cover (5) can achieve both closed and open states. In the dual rocker mechanism, the second link (3) is limited by the fixed point B of the first link (2) at the left extreme position and by the limiting rod (4) at the right extreme position, ensuring that the second link (3) rotates within a limited angle range.

2. An optical device, characterized in that, It is equipped with an electrically rotating lens cap as described in claim 1.

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