A dimming filter and camera lens

Abstract

The application discloses a dimming filter and a camera lens, and belongs to the dimming filter field. The dimming filter comprises a dimming panel and a magnetic ring frame. The magnetic ring frame comprises two, and at least one dimming panel is sequentially arranged between the two magnetic ring frames. Each dimming panel comprises a first lead wire, a second lead wire, sealing glue, a first glass substrate, a first electrode layer, a first orientation layer, a dye liquid crystal layer, a second orientation layer, a second electrode layer and a second glass substrate which are sequentially arranged. One end of the first lead wire is connected with the first electrode layer, one end of the second lead wire is connected with the second electrode layer, and the outer circle of the first glass substrate and the second glass substrate is bonded through the sealing glue. When the dimming panel comprises two or more, the dye liquid crystal layers of the two or more dimming panels are of the same color or different colors, and the orientations of the dye liquid crystals of the dye liquid crystal layers of the adjacent dimming panels are perpendicular to each other. The application can realize stepless adjustment without frequently replacing the dimming filter.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dimming filter, in particular to a dimming filter and a camera lens. BACKGROUND

[0002] As an important image recording tool, cameras play an irreplaceable role in people's daily life and work. A camera usually consists of a lens, an aperture, a shutter, a photosensitive element, a viewfinder, a control system, and a storage system. Among them, the lens is responsible for collecting light and focusing it on the photosensitive element.

[0003] The camera lens needs to adjust the amount of light entering the camera according to actual needs. Currently, the camera lens adjusts the amount of light entering the camera through a dimmer. However, it can only adjust the gear of the camera light amount by replacing different dimmers, and cannot achieve stepless adjustment. SUMMARY

[0004] The present application provides a dimming filter and a camera lens, which can solve the problem that the current camera light amount can only be adjusted by replacing different dimmers, and cannot achieve stepless adjustment.

[0005] To achieve the above purpose, the technical scheme of the present application embodiment is:

[0006] In a first aspect, the present application provides a dimming filter, comprising a dimming panel and a magnetic ring frame; the magnetic ring frame comprises two, and at least one dimming panel is sequentially stacked between the two magnetic ring frames; each dimming panel comprises a first lead, a second lead, a sealing glue, and a first glass substrate, a first electrode layer, a first orientation layer, a dye liquid crystal layer, a second orientation layer, a second electrode layer, and a second glass substrate sequentially arranged, one end of the first lead is connected with the first electrode layer, one end of the second lead is connected with the second electrode layer, and the outer circle of the first glass substrate and the second glass substrate is bonded by the sealing glue; when the dimming panel comprises two or more, the dye liquid crystal layers of the two or more dimming panels are the same or different in color, and the orientations of the dye liquid crystals of the dye liquid crystal layers of adjacent dimming panels are perpendicular to each other.

[0007] With reference to the first aspect, in a possible implementation manner, the first electrode layer is divided into at least two first electrode sub-blocks; the first lead is divided into at least two first sub-leads consistent with the number of the first electrode sub-blocks, one end of each first sub-lead being connected with one of the first electrode sub-blocks; the second electrode layer is divided into at least two second electrode sub-blocks consistent with the number of the first electrode sub-blocks, each second electrode sub-block being coincident with the first electrode sub-block at a corresponding position; and the second lead is divided into at least two second sub-leads consistent with the number of the second electrode sub-blocks, one end of each second sub-lead being connected with one of the second electrode sub-blocks.

[0008] With reference to the first aspect, in a possible implementation manner, two adjacent light modulation panels are bonded by PVB glue.

[0009] In a second aspect, another embodiment of the present application provides a camera lens, comprising the light modulation filter.

[0010] The one or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0011] The light modulation filter provided by the embodiments of the present application can, in actual use, pass an external voltage to the light modulation panel and the second lead, adjust the external voltage to a corresponding voltage driving value according to the light quantity required by a user, adjust the light and dark degree of each light modulation panel, thereby adjusting the light quantity entering the camera, and achieve stepless adjustment of the transmittance of the light modulation filter, without the need to frequently replace the light modulation filter, and the user can use it more conveniently. When the external environment is too bright or a special color environment is required, the user can freely select the light reduction degree according to the brightness of the external light and select a specific color filter according to a specific scene. The ideal light entering effect can be obtained by changing the driving voltage, and the driving voltage can be gradually changed to achieve gradual adjustment, so that the filter switching process is more convenient, a variety of color changes can be obtained without switching the filter, and the user's photography experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0013] Figure 1 The front view of the light modulation filter provided by an embodiment of the present application is shown in FIG. 1.

[0014] Figure 2 The right view of the light modulation filter provided by an embodiment of the present application is shown in FIG. 2. Figure 1 The right view of the light modulation filter provided by an embodiment of the present application is shown in FIG. 2.

[0015] Figure 3 A right view of the dimming filter provided for another embodiment of the present application is shown in the figure.

[0016] Figure 4 A front view of the dimming filter provided for another embodiment of the present application is shown in the figure.

[0017] Figure legend: 1-dimming panel; 11-first lead; 12-second lead; 13-FPC; 2-magnetic ring frame; 3-PVB glue. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0019] In the description of the embodiments of the present application, it should be noted that the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In addition, the terms “mounting”, “connecting”, “connecting” should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0020] Please refer to Figures 1-4 The embodiments of the present application provide a dimming filter, which comprises a dimming panel 1 and a magnetic ring frame 2.

[0021] The magnetic ring frame 2 comprises two, and at least one dimming panel 1 is sequentially stacked between the two magnetic ring frames 2.

[0022] The magnetic properties of the opposite surfaces of the two magnetic ring frames 2 are opposite, and the mutual attraction between the two magnetic ring frames 2 can clamp and fix at least one light adjustment panel 1 arranged between the two magnetic ring frames 2, so as to realize the sequential stacking and clamping of the at least one light adjustment panel 1. At the same time, it is convenient to increase or decrease or replace the light adjustment panel 1 according to the needs, and only the magnetic ring frame 2 needs to be easily removed and replaced, and then the two magnetic ring frames 2 are attracted to each other.

[0023] Generally, in order to adapt to the camera lens, the shape of the light adjustment panel 1 is circular. The shape of the magnetic ring frame 2 is adapted to the shape of the light adjustment panel 1.

[0024] The magnetic ring frame 2 can be made of a whole magnet. It can also include a plastic frame body, and a plurality of magnet blocks are inlaid in an annular array on the plastic frame body.

[0025] Each light adjustment panel 1 includes a first lead wire 11, a second lead wire 12, a sealing glue, and a first glass substrate, a first electrode layer, a first orientation layer, a dye liquid crystal layer, a second orientation layer, a second electrode layer, and a second glass substrate arranged in sequence. One end of the first lead wire 11 is connected to the first electrode layer, and one end of the second lead wire 12 is connected to the second electrode layer. The outer circle of the first glass substrate and the second glass substrate is bonded by the sealing glue.

[0026] The first lead wire 11 and the second lead wire 12 adopt a design of binding and soldering lead wires by FPC 13, omitting the PCB board, which can ensure the normal use of the magnetic ring frame 2. After the first lead wire 11 and the second lead wire 12 are led out, they are connected to a controller. There are two kinds of controller adjustment modes. The first kind is to adjust the light amount by changing the applied voltage value. The second kind is for the user to set the light amount, and the controller applies the corresponding applied voltage value according to the specified light amount to complete the adjustment of the transmittance.

[0027] Among them, the orientation angles of the first orientation layer and the second orientation layer are specific angles, such as 45°, 90°, and 180°, etc.

[0028] When the light adjustment panel 1 includes two or more, the colors of the dye liquid crystal layers of the two or more light adjustment panels 1 are the same or different, and the orientations of the dye liquid crystals of the dye liquid crystal layers of adjacent light adjustment panels 1 are perpendicular to each other.

[0029] For example, the light adjustment panel 1 can be one. When the light adjustment panel 1 is one, it can be one of gray, red, green, and blue. At this time, the light adjustment filter is a single-color light adjustment filter, which can be used for adjusting the overall picture light. By adjusting the transmittance of the light adjustment filter, the control of different light amounts can be realized.

[0030] The light adjusting panel 1 can be two. When the light adjusting panel 1 is two, the two light adjusting panels 1 can be simultaneously one of the colors of gray, red, green and blue, the light adjusting amount of the light adjusting filter can be better adjusted, the light adjusting range is larger, the light adjusting effect is better, and the cost performance is high. For example, if the transmittance is low, the two light adjusting panels 1 are used simultaneously. If the transmittance is high, one of the light adjusting panels 1 can be selected. The first lead wire 11 and the second lead wire 12 of each layer of the light adjusting panel 1 are connected to different channels of the controller, and the model and color of the light adjusting panel 1 used by each channel are set. By setting the required color and transmittance, the voltage is automatically adjusted to match the requirements.

[0031] When the light adjusting panel 1 is two, the two light adjusting panels 1 can be different in color, each of which can select one of the colors of gray, red, green and blue, so as to realize two-color light adjustment.

[0032] The light adjusting panel 1 can be three, and the three light adjusting panels 1 are respectively red, green and blue, which can form a multi-color light adjusting filter. The applied voltage can be adjusted according to the required color and transmittance of the user, so as to realize the effect required by the user. Moreover, the red, green and blue are basic colors, and any required color can be adjusted. Table 1 below shows the dark state value and the bright state value of the light adjusting panel 1 of a single layer which is respectively red, green and blue, and the dark state value and the bright state value after superposition. As shown in Table 1, the adjustment effect of the light adjusting filter is better. In practice, the dark state value and the bright state value after superposition of three layers under different applied voltages can be obtained through experiments. The value can be recorded and directly adjusted to the required value in actual application.

[0033] Table 1

[0034] Single layer light modulation panel 1 Dark state value Bright state value Blue 37.8 64.1 Red 38.5 63.7 Green 38.4 65.3 Three layer superposition 1.8 28.6

[0035] When the light adjusting panel 1 is three, the colors of the three light adjusting panels 1 can be consistent, or two colors are consistent and the other color is different, which can be set according to actual requirements.

[0036] The light adjusting panel 1 is provided with at least one. When the light adjusting panel 1 is more than two, the light adjusting panel 1 has multiple models and multiple colors, and specific color light adjusting filters can be used for different scenes to achieve the best effect.

[0037] The light adjusting filter provided by the embodiment of the application can adjust the light adjusting filter transmittance without frequent replacement of the light adjusting filter, and the user can use it more conveniently. When the external environment is too bright or a special chroma environment is needed, the light adjusting degree can be freely selected according to the external light brightness, and a special color filter can be selected according to a specific scene. The ideal light entering effect can be obtained by changing the driving voltage, and the driving voltage can be gradually changed to achieve gradual adjustment, so that the filter switching process is more simple, a variety of color changes can be obtained without switching the filter, and the user's photography experience is improved.

[0038] Further, the first electrode layer is divided into at least two first electrode sub-blocks. The first lead 11 is divided into at least two first sub-leads consistent with the number of the first electrode sub-blocks, and one end of each first sub-lead is connected to one first electrode sub-block. The second electrode layer is divided into at least two second electrode sub-blocks consistent with the number of the first electrode sub-blocks, and each second electrode sub-block is projected to coincide with the first electrode sub-block at the corresponding position. The second lead 12 is divided into at least two second sub-leads consistent with the number of the second electrode sub-blocks, and one end of each second sub-lead is connected to one second electrode sub-block.

[0039] The light adjusting filter of the embodiment of the application divides the first electrode layer and the second electrode layer into at least two blocks, can realize the zoning processing of the light adjusting filter, realizes two-zone and above zoning light adjustment, and the process is simple and easy to realize. For example, when the first electrode layer and the second electrode layer are divided into two blocks, the light adjusting filter can be controlled to adjust the light entering amount of the lower half block, and the upper half block remains unchanged to press the highlight part of the picture, so that the effect of a customized gradient lens can be achieved according to the use demand of the user. Of course, the entire light adjusting glass can also be divided into at least two blocks.

[0040] The number of blocks matches the number of sub-leads, that is, when the entire surface is driven, the number of the first lead 11 and the second lead 12 is one. When the entire surface is divided into two blocks, the number of the first lead 11 and the second lead 12 is two, and so on. When the controller is connected, different leads need to be connected to different channels to realize independent adjustment. Zoning control can be used to shoot scenes such as sunset that need zoning light adjustment, and can be used as a gradient lens.

[0041] Further, the adjacent two light adjusting panels 1 are bonded with PVB glue 3. When two or more light adjusting panels 1 are of the same color, bonding through the PVB glue 3 can make the entire light adjusting filter structure more stable.

[0042] Another embodiment of the present application provides a camera lens comprising the light-adjusting filter described above, so that in actual use, by applying an external voltage to the first lead wire 11 and the second lead wire 12, the external voltage can be adjusted to a corresponding voltage driving value according to the light quantity required by the user, the light quantity entering the camera can be adjusted by adjusting the brightness and darkness of each light-adjusting panel 1, the stepless adjustment of the transmittance of the light-adjusting filter can be realized, the light-adjusting filter does not need to be frequently replaced, and the user can use it more conveniently. When the external environment is too bright or a special color environment is required, the light reduction degree can be freely selected according to the brightness of the external light, and a specific color filter can be selected according to a specific scene. By changing the driving voltage, the ideal light entering effect can be obtained, the driving voltage can also be gradually changed to achieve gradual adjustment, the filter switching process is more simple, a variety of color changes can be obtained without switching the filter, and thus the user's photography experience is improved.

[0043] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments.

[0044] The above embodiments are only used to illustrate the technical solutions of the present application, and are not limited to the present application; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the present application.

Claims

1. A camera lens, characterized in that, Includes a dimming filter, the dimming filter comprising a dimming panel and a magnetic ring frame; The magnetic ring frame includes two, and three dimming panels are stacked between the two magnetic ring frames in sequence. Each of the dimming panels includes a first lead, a second lead, a sealant, and a first glass substrate, a first electrode layer, a first alignment layer, a dye liquid crystal layer, a second alignment layer, a second electrode layer, and a second glass substrate arranged sequentially. One end of the first lead is connected to the first electrode layer, and one end of the second lead is connected to the second electrode layer; The first electrode layer is divided into at least two first electrode sub-blocks; The first lead is divided into at least two first sub-leads, which are the same number as the number of the first electrode sub-blocks, and one end of each first sub-lead is connected to one of the first electrode sub-blocks. The second electrode layer is divided into at least two second electrode sub-blocks, the same number as the number of first electrode sub-blocks, and each second electrode sub-block projects onto the first electrode sub-block at the corresponding position; The second lead is divided into at least two second sub-leads, which are the same number as the number of the second electrode sub-blocks, and one end of each second sub-lead is connected to one of the second electrode sub-blocks; The outer rings of the first glass substrate and the second glass substrate are bonded together by the sealant; The three dimming panels are red, green and blue, respectively, and the orientation of the dye liquid crystals in the dye liquid crystal layers of adjacent dimming panels is perpendicular to each other; By applying an external voltage to the first lead and the second lead, the external voltage is adjusted to the corresponding voltage drive value according to the light intake required by the user.

2. The camera lens according to claim 1, characterized in that, The two adjacent dimming panels are bonded together with PVB adhesive.

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