Filter device capable of controlling and adjusting light transmittance

Abstract

The utility model discloses a filter device capable of controlling and adjusting light transmittance, which relates to the technical field of lenses, and comprises a shell, the shell is provided with a light hole at the central position of a mounting ring, the top and the bottom of the shell are provided with movable grooves in a penetrating manner, the movable grooves are internally provided with filter rings, and the filter rings are arranged in the movable grooves. A filter is mounted in the center of the filter ring; according to the utility model, light passes through the light hole, the filter ring in the movable groove is moved to be aligned with the light hole, and the light transmittances of a plurality of groups of filters are mutually superposed, so that the light passing through the light hole is changed, and the manual adjustment of the light transmittance of the device is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lens technical field, concretely relates to a filter device that can control and adjust the light transmittance. BACKGROUND

[0002] The light transmittance represents the ability of light to pass through a medium, that is, the percentage of the light flux that passes through a transparent or translucent body to the incident light flux. When parallel monochromatic light passes through a uniform and non-scattering medium, part of the light is absorbed, part of the light transmits through the medium, and part of the light is reflected by the surface of the medium. The light transmittance can represent the efficiency of the light transmission of a display device, which directly affects the visual effect of the touch screen.

[0003] The Chinese patent with publication number CN216921975U discloses a light transmittance adjustable glass, which comprises a glass body, a main support frame is fixedly installed at the front end of the glass body, a side sliding groove is formed at the side end of the main support frame, at least two inner support frames are fixedly installed inside the main support frame, a spacing groove is formed between every two inner support frames, and each inner support frame is parallel to the upper and lower inner support frames. The above-mentioned prior art changes the light transmittance by shielding. In actual use, the shielding of light will cause the user's visual range to become smaller, which is not conducive to observation.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art, provide a filter device that can control and adjust the light transmittance, and solve the problems raised in the background.

[0006] To solve the above-mentioned technical problems, the basic idea of the technical scheme of the utility model is as follows:

[0007] A filter device that can control and adjust the light transmittance comprises an outer shell, characterized in that a mounting ring is arranged on one side of the back surface of the outer shell, a light transmission hole is formed at the center position of the mounting ring, a movable slot is formed through the top and bottom of the outer shell, a filter ring is arranged inside the movable slot, and a filter is installed at the center position of the filter ring.

[0008] Optionally, a connecting seat is arranged at the top and bottom of the filter ring, a hook is transversely installed through the connecting seat, a spring column is inserted into the center position of the hook, a spring is sleeved on the surface of the spring column, a pressure rod is arranged on the top of the hook outside the spring column, a pressure block is arranged at the top of the pressure rod, a plug hole is formed at both sides of the movable slot, and a limiting strip is arranged at the top of the plug hole close to the movable slot.

[0009] Optionally, inclined surfaces are formed at both ends of the hook.

[0010] Optionally, the movable groove is provided with a baffle, a sliding groove is horizontally arranged at the center of the baffle, and a sliding block is arranged at the middle position of the front and back surfaces of the filter ring.

[0011] Optionally, a dust cover is arranged on the front surface of the light transmission hole, and a rotating shaft is vertically arranged on the other side of the dust cover.

[0012] Optionally, a magnet one is arranged on the front surface of the left side of the shell, and a magnet two is arranged on the front surface of the dust cover.

[0013] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0014] 1. The filter device capable of controlling and adjusting the light transmission rate, light passes through the light transmission hole, the filter ring in the movable groove is moved, the corresponding filter is moved to align with the light transmission hole, the light transmission rates of the multiple filters are superimposed on each other, the light passing through the light transmission hole is changed, and thus the manual adjustment of the light transmission rate of the device is realized, the light transmission rate is changed only by the filter material, and there is no any shielding at the light transmission hole in the adjustment process, and the observation of personnel is not affected.

[0015] 2. The filter device capable of controlling and adjusting the light transmission rate, the whole is small and simple in structure, and can be installed at the front end of the corresponding lens through the mounting ring, serves as an additional component, and adjusts the light transmission rate of the light entering the lens quickly, is suitable for a wide range of applications, and is convenient to use.

[0016] The specific implementation manner of the present application will be further described in detail below with reference to the drawings. DRAWINGS

[0017] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. In the drawings,

[0018] In the drawings:

[0019] Figure 1 It is a front view of the present application;

[0020] Figure 2 It is a back view of the present application;

[0021] Figure 3 It is a baffle view of the present application;

[0022] Figure 4 It is a filter ring of the present application;

[0023] Figure 5 It is a sectional view of the present application;

[0024] Figure 6 For Figure 5 the enlarged view at A shown.

[0025] In the drawings, the components represented by each reference numeral are listed as follows:

[0026] 1, shell; 101, movable slot; 102, light transmission hole; 103, insertion hole; 104, limiting strip; 105, baffle; 106, sliding slot; 107, magnet I; 2, filter ring; 201, filter; 202, connecting seat; 203, pressing block; 204, hook; 205, spring column; 206, spring; 207, pressing rod; 208, sliding block; 3, mounting ring; 4, dust cover; 401, magnet II; 402, rotating shaft.

[0027] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The utility model will be further described in detail in combination with the drawings.

[0029] Please refer to Figures 1-6 , in this embodiment, a filter device capable of controlling and adjusting light transmittance is provided, which comprises a shell 1.

[0030] As Figures 1-4 shown, the shell 1 of the embodiment is provided with a mounting ring 3 near one side of the back, the shell 1 is provided with a light transmission hole 102 at the center position of the mounting ring 3, the movable slot 101 is provided through the top and bottom of the shell 1, the filter ring 2 is arranged in the movable slot 101, and the filter 201 is installed at the center position of the filter ring 2; wherein the shell 1 is in the shape of a long strip, the light transmission hole 102 is provided at one side and the mounting ring 3 is provided at the back, the centers of the two are aligned, the transparent glass is mounted at both ends of the light transmission hole 102, the filter ring 2 in the shell 1 can be moved, when all the filter rings 2 are located away from one end of the light transmission hole 102, the light enters from the front of the shell 1, passes through the light transmission hole 102 and the surface glass, and finally shoots out from the mounting ring 3, at this time, the light transmittance is the largest, the filter 201 in each filter ring 2 can reduce the light transmittance of the passing light, the light transmittance is reduced by moving each filter ring 2 to the light transmission hole 102, the light transmittance of the passing light is further reduced by the mutual superposition of multiple filter rings 2, and then the corresponding number of filter rings 2 can be moved to the light transmission hole 102 according to the actual light transmittance requirement.

[0031] As Figure 5 , 6As shown, the top and bottom of the filter ring 2 of the embodiment are provided with connecting seats 202, hooks 204 are transversely installed through the connecting seats 202, spring columns 205 are inserted into the center positions of the hooks 204, springs 206 are sleeved on the surfaces of the spring columns 205, pressure rods 207 are arranged on the top of the hooks 204 on the outer side of the spring columns 205, pressure blocks 203 are arranged on the top of the pressure rods 207, and insertion holes 103 are arranged on both sides of the movable groove 101, and limit strips 104 are arranged on the top of the insertion holes 103 close to the movable groove 101; wherein, when the filter ring 2 moves, the connecting seat 202 in the movable groove 101 moves, the hook 204 in the connecting seat 202 is inserted into the insertion hole 103, and the connecting seat 202 is fixed by hooking the limit strip 104, so as to fix the filter ring 2 on one side of the shell 1, the center axis of the filter ring 2 and the light transmission hole 102 coincide when being fixed on the side close to the light transmission hole 102, and the diameter of the filter ring 2 is larger than that of the light transmission hole 102, so that the edge of the filter ring 2 can not be seen at the light transmission hole 102, and the line of sight is not blocked, and the filter ring 2 not needed is fixed on the insertion hole 103 on the other side of the shell 1 by the hook 204, away from the light transmission hole 102, the limit strip 104 in the insertion hole 103 can be hooked by both ends of the hook 204, the spring on the spring column 205 is pressed downward by pressing the pressure block 203 on the top of the connecting seat 202, the pressure rod 207 on the bottom of the pressure block 203 wraps the spring column 205, and the hook 204 is pressed downward together, the limit strip 104 is loosened, the hook 204 is separated from the insertion hole 103, so that the filter ring 2 can be moved and adjusted in the movable groove 101, and the hook 204 on the other side is inserted into the distal insertion hole 103, the pressure block 230 is loosened, the hook 204 is lifted upward by the spring 206, and is clamped into the limit strip 104, so as to realize the movement and fixation of the filter ring 2.

[0032] As shown in the figure, Figure 6 The two ends of the hook 204 of the embodiment are provided with inclined surfaces; wherein, the inclined surfaces make the hook 204 extrude the limit strip 104 when entering the insertion hole 103, and convert the transverse force into downward force, so that the pressure block 203 does not need to be pressed, and the hook 204 can be fixed to the limit strip 104 by being pushed into the insertion hole 103 to fix the filter ring 2.

[0033] As shown in the figure, Figure 3 The movable groove 101 of the embodiment is provided with baffles 105, a sliding groove 106 is transversely arranged in the center position of the baffle 105, and a sliding block 208 is arranged in the middle position of the front and back surfaces of the filter ring 2; wherein, a plurality of baffles 105 divide a plurality of filter rings 2, so that the corresponding filter rings 2 move in the corresponding spaces without interfering with each other, and the sliding block 208 on each filter ring 2 is embedded in the gap sliding groove 106 in the middle of the baffle 105, so as to avoid the filter ring 2 from falling out of the movable groove 101.

[0034] As shown in the figure, Figure 1As shown, the shell 1 of the embodiment is located in the front of the light transmission hole 102, and a dust cover 4 is arranged on the front of the light transmission hole 102, and a rotating shaft 401 is vertically installed on the other side of the dust cover 4; wherein the dust cover 4 is installed on the front of the shell 1 through the rotating shaft 401, and the dust cover 4 is turned to the front of the light transmission hole 102 to shield and close the light transmission hole 102, so as to prevent the light transmission hole 102 from being affected by dust accumulation and affecting light transmission, and the dust cover 4 is turned to the other side to open the light transmission hole 102 for use.

[0035] As shown, Figure 1 As shown, the shell 1 of the embodiment is located in the front of the light transmission hole 102, and a dust cover 4 is arranged on the front of the light transmission hole 102, and a rotating shaft 401 is vertically installed on the other side of the dust cover 4; wherein the dust cover 4 is installed on the front of the shell 1 through the rotating shaft 401, and the dust cover 4 is turned to the front of the light transmission hole 102 to shield and close the light transmission hole 102, so as to prevent the light transmission hole 102 from being affected by dust accumulation and affecting light transmission, and the dust cover 4 is turned to the other side to open the light transmission hole 102 for use.

[0036] Working principle: install the mounting ring 3 on the corresponding lens, open the dust cover 4, and the light enters the lens through the light transmission hole 102, from the insertion hole 103 on one side, press the pressing block 203 of the corresponding filter ring 2, the pressing rod 207 extrudes the spring 206 under the hook 204, the hook 204 moves downward to separate from the limiting strip 104, the sliding block 208 moves in the sliding groove 106, and the filter ring 2 moves from one side to the other side, so as to adjust the number of filter rings 2 in the light transmission hole 102 position, and the light transmission rate is adjusted through the superposition of multiple filter rings 2.

[0037] The utility model is not limited to the above-mentioned embodiment, anyone should know that the structural change made under the inspiration of the utility model, any technical scheme with the same or similar technical scheme of the utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure parts are known technology.

Claims

1. A filter device with controllable and adjustable light transmittance, comprising: The outer shell (1) is characterized in that a mounting ring (3) is provided on the back side of the outer shell (1) near one side, a light-transmitting hole (102) is provided in the center of the mounting ring (3) of the outer shell (1), a movable groove (101) is provided through the top and bottom of the outer shell (1), a filter ring (2) is provided inside the movable groove (101), and a filter (201) is installed in the center of the filter ring (2).

2. The filter device with controllable and adjustable light transmittance according to claim 1, characterized in that, The filter ring (2) is provided with connecting seats (202) at the top and bottom. A hook (204) is installed horizontally through the connecting seat (202). A spring post (205) is inserted into the center of the hook (204). A spring (206) is sleeved on the surface of the spring post (205). A pressure rod (207) is provided on the outside of the spring post (205) at the top of the hook (204). A pressure block (203) is provided on the top of the pressure rod (207). Insertion holes (103) are provided on both sides of the movable groove (101). A limit strip (104) is provided on the top of the insertion hole (103) near the movable groove (101).

3. The filter device with controllable and adjustable light transmittance according to claim 2, characterized in that, The hook (204) has beveled surfaces at both ends.

4. The filter device with controllable and adjustable light transmittance according to claim 1, characterized in that, A baffle (105) is provided between the movable grooves (101), and a sliding groove (106) is opened laterally at the center of the baffle (105). A slider (208) is provided in the middle of the front and back sides of the filter ring (2).

5. A filter device with controllable and adjustable light transmittance according to claim 1, characterized in that, The outer casing (1) is provided with a dust cover (4) on the front of the light-transmitting hole (102), and a rotating shaft (401) is vertically installed through the other side of the dust cover (4).

6. A filter device with controllable and adjustable light transmittance according to claim 5, characterized in that, Magnet 1 (107) is provided on the left and right sides of the front of the outer shell (1), and magnet 2 (402) is provided on one side of the front of the dust cover (4).

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