WO2014190634A1 - Multi-function cpl polarizing and adjustable nd filter - Google Patents

Multi-function cpl polarizing and adjustable nd filter Download PDF

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Publication number
WO2014190634A1
WO2014190634A1 PCT/CN2013/083087 CN2013083087W WO2014190634A1 WO 2014190634 A1 WO2014190634 A1 WO 2014190634A1 CN 2013083087 W CN2013083087 W CN 2013083087W WO 2014190634 A1 WO2014190634 A1 WO 2014190634A1
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WO
WIPO (PCT)
Prior art keywords
filter
cpl
frame
side wall
adjustable
Prior art date
Application number
PCT/CN2013/083087
Other languages
French (fr)
Chinese (zh)
Inventor
袁国奎
Original Assignee
珠海市川富光学技术有限公司
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Publication date
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Publication of WO2014190634A1 publication Critical patent/WO2014190634A1/en

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/003—Light absorbing elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/006—Filter holders
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B11/00—Filters or other obturators specially adapted for photographic purposes
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors

Definitions

  • the invention relates to the technical field of camera filter adjustment, and relates to a multifunctional CPL polarized, adjustable ND filter.
  • CPL polarizers and ND mirrors are commonly used filters on SLR cameras; among them, CPL polarizers mainly use CPL polarizing function to attenuate reflected light, which is commonly used to filter out reflected light from glass windows. Makes the glass clearer and more transparent, and also filters out the polarized light in the sky, making the contrast between the sky clearer and more realistic.
  • the ND mirror is mainly used to reduce the amount of light passing through, shooting outdoors in strong sunlight, or in normal light. When using a longer exposure time under conditions, an ND mirror is required to assist.
  • CPL polarizer and an ND mirror which is expensive, portable and difficult to carry and save, and these CPL polarizers and ND mirrors are separately provided by setting the thread structure.
  • the CPL polarizer when switching between CPL polarizing function and adjustable ND function, the CPL polarizer must be removed and assembled with the ND mirror, or the ND mirror can be removed and assembled with the CPL polarizer, which is very time consuming and inconvenient to operate.
  • the present invention provides a user who can purchase a filter to meet the requirements of the CPL polarizing function and the adjustable ND function, reduce repetitive purchase, save money, and carry and save easily.
  • a multifunctional CPL polarized, adjustable ND filter includes a ring-shaped rear frame, a CPL polarizer and an ND filter; the CPL polarizer is disposed in a ring shape of the rear frame, and the rear frame The inner side wall is rotatably connected; the one end of the ND filter is detachable from the card slot structure And rotating and rotatably connected to the rear frame, located in front of the CPL polarizer.
  • the ND filter is mainly composed of a filter frame and an ND lens disposed on the filter frame; the outer side wall of the filter frame is provided with a card block; and the inner side wall of the rear frame is provided There is a second card slot and a card inlet adapted to the card block; when assembled, the card block is inserted into the second card slot through the card inlet, and rotates with the ND filter The second card slot slides.
  • the outer side wall of the filter frame is provided with a second card slot and a card inlet;
  • the inner side wall of the rear frame is provided with a card block corresponding to the card inlet at a corresponding position; when assembled, the The card block is inserted into the second card slot through the card inlet, and slides in the second card slot as the ND filter rotates.
  • the filter frame is further provided with a locking component
  • the rear frame is provided with a limiting sliding slot toward the end surface of the ND filter
  • the outer side wall of the rear frame is provided with a locking component.
  • a position limiting chute is disposed at a corresponding position of the outer side wall of the ND filter; when assembled, the locking component is caught in the limiting chute, and the limit chute is rotated with the ND filter Sliding inside.
  • the locking member is a locking screw mainly composed of a threaded portion and a holding portion, one end of the threaded portion is connected to the holding portion, and the other end is screwed into the screw provided in the filter frame a hole, and the end is caught in the limit chute.
  • the threaded portion is integrally formed with the grip portion.
  • the CPL polarizer is mainly composed of a rotating frame and a CPL polarizer disposed on the rotating frame, and an outer side wall of the rotating frame is provided with a rotating rib, and an inner side wall of the rear frame is provided a first card slot; when assembled, the rotating rib is rotatably received in the first card slot.
  • the CPL polarizer is mainly composed of a rotating frame and a CPL polarizer disposed on the rotating frame, and an outer side wall of the rotating frame is provided with a first card slot, and an inner side wall of the rear frame is provided Rotating the rib; when assembled, the rotating rib is rotatably engaged in the first card slot.
  • the user only needs to purchase a multi-function CPL polarized light and adjustable ND filter according to the present invention to meet the requirements of the CPL polarizing function and the adjustable ND function, thereby reducing the repetitive product purchase, and greatly Save money, carry and save easily and conveniently, and simply complete the CPL polarized function and adjustable ND function by disassembling and assembling the ND filter Switching, operation is very simple, convenient and fast.
  • FIG. 1 is a schematic diagram showing the decomposition structure of a multi-function CPL polarized and adjustable ND filter according to the first embodiment of the present invention
  • FIG. 2 is a cross-sectional structural view showing a first embodiment of a multifunctional CPL polarized and adjustable ND filter according to the present invention
  • FIG. 3 is a top plan view of a rear frame of a multi-function CPL polarized and adjustable ND filter according to the present invention
  • FIG. 4 is a bottom view of the ND filter in the first embodiment of the multi-function CPL polarized and adjustable ND filter according to the present invention
  • Fig. 5 is a cross-sectional structural view showing a second embodiment of a multifunctional CPL polarized and adjustable ND filter according to the present invention.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • a multifunctional CPL polarized, adjustable ND filter includes a ring-shaped rear frame 1, a CPL polarizer 2, and an ND filter 3;
  • the CPL polarizer 2 is disposed in the annular shape of the rear frame 1 and is rotatably connected to the inner side wall of the rear frame 1;
  • the end of the ND filter 3 has a card slot structure detachably and rotationally adjustable with the rear frame 1 connection, located in front of the CPL polarizer 2.
  • the specific structure can be:
  • the CPL polarizer 2 is mainly composed of a rotating frame 21 and a CPL polarizer 22; wherein the CPL polarizer 22 is disposed in the rotating frame 21 and fixed by a spinning ring 221; the outer side wall of the rotating frame 21 is provided a rotating bead 21 1 , the inner side wall of the rear frame 1 is provided with a first card slot 1 1 ; the ND filter 3 is mainly composed of a filter frame 31 and an ND lens 32; wherein the ND lens 32
  • the filter frame 31 is disposed in the filter frame 31 and passes through the spinning ring 321; the outer side wall of the filter frame 31 is provided with a block 311; the inner side wall of the rear frame 1 is provided with a second card slot 12 and a card inlet 13 adapted to the card block 31 1; the filter frame 31 is further provided with a locking member, the locking member is a locking screw 313, mainly composed of a threaded portion 314 and a holding portion 315, One end of the threaded portion 3
  • the CPL polarizer 2 When assembling, the CPL polarizer 2 is first placed in the ring of the rear frame 1, and the rotating bead 211 of the rotating frame 21 is rotatably caught in the first card slot 1 1 of the rear frame 1; then the ND filter is applied
  • the card block 311 on the filter frame 31 is inserted into the second card slot 12 via the card inlet 13 of the rear frame 1, so that the block 31 1 slides in the second card slot 12 with the rotation of the ND filter 3;
  • the locking screw 313 is screwed into the screw hole 312 provided in the filter frame 31 such that the end of the threaded portion 314 is caught in the limiting chute 14 and slides in the limiting chute 14 in accordance with the rotation of the ND filter 3.
  • the multifunctional CPL polarized and adjustable ND filter of the present invention is mounted on the lens of the photographing device through the external thread provided on the outer side wall of the rear end of the rear frame 1, and has an adjustable ND function;
  • the screw 313 is locked and the ND filter 3 is rotated so that the block 311 is located at the card inlet 13, the ND filter 3 can be detached and separated from the rear frame 1.
  • the user only needs to purchase a multi-function CPL polarized and adjustable ND filter according to the present invention to meet the requirements of the CPL polarizing function and the adjustable ND function, thereby reducing repetitive product purchase and greatly saving expenses. It is easy and convenient to carry and store, and the CPL polarizing function and the adjustable ND function can be switched by simply disassembling and assembling the ND filter 3. The operation is very simple, convenient and fast.
  • the card slot structure between the ND filter 3 and the rear frame 1 may be: the outer side wall of the filter frame 31 is provided with the same second card slot and card inlet as described above, The inner side wall of the rear frame 1 is provided with a block corresponding to the entrance of the card, and a limiting slot is provided toward the end surface of the ND filter 3; the filter frame 31 is further provided with a locking component ( That is, the locking screw 313); when assembled, the card block is also inserted into the second card slot through the card inlet, and slides in the second card slot with the rotation of the ND filter 3, the locking component The card is stuck in the limiting slot and slides in the limiting slot with the rotation of the ND filter 3.
  • the outer side wall of the rotating frame 21 is provided with a first card slot
  • the inner side wall of the rear frame 1 is provided with a rotating rib; when assembled, the A rotating rib is rotatably received in the first card slot.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the structure of a multi-function CPL polarized and adjustable ND filter according to the second embodiment of the present invention is basically the same as that of the first embodiment, and includes a ring-shaped rear frame 1, a CPL polarizer 2, and a
  • the ND filter 3 is disposed in the annular shape of the rear frame 1 and is rotatably connected to the inner side wall of the rear frame 1; the card slot structure of the ND filter 3 is detachable and rotatable.
  • the grounding is connected to the rear frame 1 and is located in front of the CPL polarizer 2.
  • the outer side wall of the rear frame 1 is provided with the same locking component as that of the first embodiment, that is, the locking screw 313, and the outer side wall of the ND filter 3 is provided with a limiting chute;
  • the locking member ie, the end of the threaded portion of the locking screw 313 is caught in the limiting slot and slides in the limiting slot with the rotation of the ND filter 3.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Blocking Light For Cameras (AREA)
  • Telescopes (AREA)
  • Polarising Elements (AREA)

Abstract

A multi-function CPL polarizing and adjustable ND filter, comprising a ring-shaped rear mirror frame (1), a CPL polarizer (2) and an ND filter (3), wherein the CPL polarizer (2) is provided in a ring of the rear mirror frame (1), and is rotationally connected to the side wall of the inner side of the rear mirror frame (1); and a clamping block-clamping groove structure at one end of the ND filter (3) is detachably, rotationally and adjustably connected to the rear mirror frame (1), and is located in front of the CPL polarizer (2). In this way, the demands of a CPL polarizing function and an adjustable ND function can be satisfied as long as a user only need buy one multi-function CPL polarizing and adjustable ND filter mentioned above, so that repetitive purchase of a product is reduced, and the expenditure is greatly saved. Meanwhile, it is easy and convenient to carry and save. Moreover, the switching between the CPL polarizing function and the adjustable ND function can be completed only by disassembling and assembling the ND filter, and the operation is very simple, convenient and quick.

Description

一种多功能 CPL儷光、 可调 ND滤锼  A multifunctional CPL neon, adjustable ND filter
技术领域 Technical field
本发明涉及照相机滤镜调节技术领域，涉及一种多功能 CPL偏光、可 调 ND滤镜。  The invention relates to the technical field of camera filter adjustment, and relates to a multifunctional CPL polarized, adjustable ND filter.
背暈技术 Halo technology
目前， CPL偏光镜和 ND镜（中灰密度镜）都是单反相机上常用的滤 镜；其中 ， CPL偏光镜主要起 CPL偏光功能，用于削弱反射光，常用以 滤掉玻璃窗反射光，使玻璃更加清晰透明 ，也用以滤掉的天空中的偏振光， 使天际间的对比更加清晰、 真实； ND 镜主要用于降低通光量，在阳光强 烈的室外拍摄，又或者需要在正常光线条件下用较长的曝光时间时，都需 要使用 ND镜予以辅助。 如果用户要为相机增加该两功能就必须配置一个 CPL偏光镜和一个 ND镜，花费较高，携带和保存十分麻烦、 不方便，而 且这些 CPL偏光镜和 ND镜都是通过设置螺纹结构分别单独安装在镜头 上，进行 CPL偏光功能和可调 ND功能切换时，必须将 CPL偏光镜卸下 再组装上 ND镜，或者将 ND镜卸下再组装上 CPL偏光镜，非常费时，操 作不方便。  At present, CPL polarizers and ND mirrors (medium gray density mirrors) are commonly used filters on SLR cameras; among them, CPL polarizers mainly use CPL polarizing function to attenuate reflected light, which is commonly used to filter out reflected light from glass windows. Makes the glass clearer and more transparent, and also filters out the polarized light in the sky, making the contrast between the sky clearer and more realistic. The ND mirror is mainly used to reduce the amount of light passing through, shooting outdoors in strong sunlight, or in normal light. When using a longer exposure time under conditions, an ND mirror is required to assist. If the user wants to add the two functions to the camera, it is necessary to configure a CPL polarizer and an ND mirror, which is expensive, portable and difficult to carry and save, and these CPL polarizers and ND mirrors are separately provided by setting the thread structure. Mounted on the lens, when switching between CPL polarizing function and adjustable ND function, the CPL polarizer must be removed and assembled with the ND mirror, or the ND mirror can be removed and assembled with the CPL polarizer, which is very time consuming and inconvenient to operate.
发明内容 Summary of the invention
为解决现有技术中存在的上述问题，本发明提供了一种用户只需购买 一个滤镜即可满足 CPL偏光功能和可调 ND功能的需求，减少重复购买， 节省开支， 同时携带和保存轻松、 方便，操作简单、 方便、 快捷的多功能 CPL偏光、 可调 ND滤镜。  In order to solve the above problems existing in the prior art, the present invention provides a user who can purchase a filter to meet the requirements of the CPL polarizing function and the adjustable ND function, reduce repetitive purchase, save money, and carry and save easily. Convenient, easy to operate, convenient and fast multi-function CPL polarized, adjustable ND filter.
为解决上述技术问题，本发明采用如下技术方案：  In order to solve the above technical problem, the present invention adopts the following technical solutions:
一种多功能 CPL偏光、可调 ND滤镜，包括有一环形后镜框、 一 CPL 偏光镜和一 ND滤镜；所述 CPL偏光镜设于所述后镜框的环形内，并与所 述后镜框的内侧侧壁转动连接；所述 ND滤镜的一端卡块卡槽结构可拆卸 并旋转可调地与所述后镜框连接，位于所述 CPL偏光镜的前方。 进一步地，所述 ND滤镜主要由滤镜框和设于所述滤镜框上的 ND镜 片组成；所述滤镜框的外侧侧壁设有卡块；所述后镜框的内侧侧壁设有第 二卡槽和与所述卡块相适配的卡入口 ；组装时，所述卡块经所述卡入口卡 入所述第二卡槽内，并随所述 ND滤镜的旋转在所述第二卡槽内滑动。 A multifunctional CPL polarized, adjustable ND filter includes a ring-shaped rear frame, a CPL polarizer and an ND filter; the CPL polarizer is disposed in a ring shape of the rear frame, and the rear frame The inner side wall is rotatably connected; the one end of the ND filter is detachable from the card slot structure And rotating and rotatably connected to the rear frame, located in front of the CPL polarizer. Further, the ND filter is mainly composed of a filter frame and an ND lens disposed on the filter frame; the outer side wall of the filter frame is provided with a card block; and the inner side wall of the rear frame is provided There is a second card slot and a card inlet adapted to the card block; when assembled, the card block is inserted into the second card slot through the card inlet, and rotates with the ND filter The second card slot slides.
或者，所述滤镜框的外侧侧壁设有第二卡槽和卡入口 ；所述后镜框的 内侧侧壁相应位置设有与所述卡入口相适配的卡块；组装时，所述卡块经 所述卡入口卡入所述第二卡槽内，并随所述 ND滤镜的旋转在所述第二卡 槽内滑动。  Alternatively, the outer side wall of the filter frame is provided with a second card slot and a card inlet; the inner side wall of the rear frame is provided with a card block corresponding to the card inlet at a corresponding position; when assembled, the The card block is inserted into the second card slot through the card inlet, and slides in the second card slot as the ND filter rotates.
进一步地，所述滤镜框上还设有锁位部件，所述后镜框朝向所述 ND 滤镜的端面设有限位滑槽，或者所述后镜框的外侧侧壁设有锁位部件，所 述 ND滤镜的外侧侧壁相应位置设有限位滑槽；组装时，所述锁位部件卡 在所述限位滑槽内，并随所述 ND滤镜的旋转在所述限位滑槽内滑动。  Further, the filter frame is further provided with a locking component, the rear frame is provided with a limiting sliding slot toward the end surface of the ND filter, or the outer side wall of the rear frame is provided with a locking component. a position limiting chute is disposed at a corresponding position of the outer side wall of the ND filter; when assembled, the locking component is caught in the limiting chute, and the limit chute is rotated with the ND filter Sliding inside.
进一步地，所述锁位部件是一锁定螺丝，主要由螺纹部和镊持部组成， 所述螺纹部的一端与所述镊持部连接，另一端拧进所述滤镜框设有的螺丝 孔，且末端卡在所述限位滑槽内。  Further, the locking member is a locking screw mainly composed of a threaded portion and a holding portion, one end of the threaded portion is connected to the holding portion, and the other end is screwed into the screw provided in the filter frame a hole, and the end is caught in the limit chute.
进一步地，所述螺纹部与镊持部一体成型。  Further, the threaded portion is integrally formed with the grip portion.
进一步地，所述 CPL偏光镜主要由旋转框和设于所述旋转框上的 CPL 偏光片组成，所述旋转框的外侧侧壁设有旋转凸筋，所述后镜框的内侧侧 壁设有第一卡槽；组装时，所述旋转凸筋可转动地卡在所述第一卡槽内。  Further, the CPL polarizer is mainly composed of a rotating frame and a CPL polarizer disposed on the rotating frame, and an outer side wall of the rotating frame is provided with a rotating rib, and an inner side wall of the rear frame is provided a first card slot; when assembled, the rotating rib is rotatably received in the first card slot.
进一步地，所述 CPL偏光镜主要由旋转框和设于所述旋转框上的 CPL 偏光片，所述旋转框的外侧侧壁设有第一卡槽，所述后镜框的内侧侧壁设 有旋转凸筋；组装时，所述旋转凸筋可转动地卡在所述第一卡槽内。  Further, the CPL polarizer is mainly composed of a rotating frame and a CPL polarizer disposed on the rotating frame, and an outer side wall of the rotating frame is provided with a first card slot, and an inner side wall of the rear frame is provided Rotating the rib; when assembled, the rotating rib is rotatably engaged in the first card slot.
本发明的有益效果是：  The beneficial effects of the invention are:
本发明通过上述技术方案，用户只需购买一个本发明所述的多功能 CPL偏光、 可调 ND滤镜即可满足 CPL偏光功能和可调 ND功能的需求， 减少了重复性的产品购买，大大节省了开支，同时携带和保存轻松、方便， 而且只需通过拆卸、组装 ND滤镜即可完成 CPL偏光功能和可调 ND功能 的切换，操作非常简单、 方便、 快捷。 According to the above technical solution, the user only needs to purchase a multi-function CPL polarized light and adjustable ND filter according to the present invention to meet the requirements of the CPL polarizing function and the adjustable ND function, thereby reducing the repetitive product purchase, and greatly Save money, carry and save easily and conveniently, and simply complete the CPL polarized function and adjustable ND function by disassembling and assembling the ND filter Switching, operation is very simple, convenient and fast.
附图说明 DRAWINGS
图 1是本发明所述一种多功能 CPL偏光、可调 ND滤镜实施例一的分 解结构示意图 ；  1 is a schematic diagram showing the decomposition structure of a multi-function CPL polarized and adjustable ND filter according to the first embodiment of the present invention;
图 2是本发明所述一种多功能 CPL偏光、可调 ND滤镜实施例一的剖 视结构示意图 ；  2 is a cross-sectional structural view showing a first embodiment of a multifunctional CPL polarized and adjustable ND filter according to the present invention;
图 3是本发明所述一种多功能 CPL偏光、可调 ND滤镜实施例一中后 镜框的俯视结构示意图 ；  3 is a top plan view of a rear frame of a multi-function CPL polarized and adjustable ND filter according to the present invention;
图 4是本发明所述一种多功能 CPL偏光、 可调 ND滤镜实施例一中 ND滤镜的仰视结构示意图 ；  4 is a bottom view of the ND filter in the first embodiment of the multi-function CPL polarized and adjustable ND filter according to the present invention;
图 5是本发明所述一种多功能 CPL偏光、可调 ND滤镜实施例二的剖 视结构示意图。  Fig. 5 is a cross-sectional structural view showing a second embodiment of a multifunctional CPL polarized and adjustable ND filter according to the present invention.
具体实施方式 detailed description
为了使本发明的目的、 技术方案及优点更加清楚明白 ，以下结合附图 及实施例，对本发明进行进一步详细说明。 应当理解，此处所描述的具体 实施例仅用以解释本发明，并不用于限定本发明。  The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
实施例一：  Embodiment 1:
如图 1至图 4中所示，本发明实施例一所述的一种多功能 CPL偏光、 可调 ND滤镜，包括有一环形后镜框 1、 - CPL偏光镜 2和一 ND滤镜 3； 所述 CPL偏光镜 2设于后镜框 1 的环形内 ，并与后镜框 1 的内侧侧壁转 动连接；所述 ND滤镜 3的一端卡块卡槽结构可拆卸并旋转可调地与后镜 框 1连接，位于 CPL偏光镜 2的前方。 具体结构可以为 ：  As shown in FIG. 1 to FIG. 4, a multifunctional CPL polarized, adjustable ND filter according to the first embodiment of the present invention includes a ring-shaped rear frame 1, a CPL polarizer 2, and an ND filter 3; The CPL polarizer 2 is disposed in the annular shape of the rear frame 1 and is rotatably connected to the inner side wall of the rear frame 1; the end of the ND filter 3 has a card slot structure detachably and rotationally adjustable with the rear frame 1 connection, located in front of the CPL polarizer 2. The specific structure can be:
所述 CPL偏光镜 2主要由旋转框 21和 CPL偏光片 22组成；其中 ， 所述 CPL偏光片 22设于旋转框 21 内并通过旋压环 221固定；所述旋转 框 21 的外侧侧壁设有旋转凸筋 21 1 ,所述后镜框 1 的内侧侧壁设有第一 卡槽 1 1 ； 所述 ND滤镜 3主要由滤镜框 31和 ND镜片 32组成；其中 ， 所述 ND镜片 32设于滤镜框 31 内，并通过旋压环 321 ；所述滤镜框 31 的外侧侧壁设有卡块 311 ；所述后镜框 1 的内侧侧壁设有第二卡槽 12和 与卡块 31 1相适配的卡入口 13；所述滤镜框 31上还设有锁位部件，所述 锁位部件是一锁定螺丝 313 ,主要由螺纹部 314和镊持部 315组成，所述 螺纹部 314的一端与镊持部 315连接，并一体成型；所述后镜框 1 朝向 ND滤镜 3的端面设有限位滑槽 14。 The CPL polarizer 2 is mainly composed of a rotating frame 21 and a CPL polarizer 22; wherein the CPL polarizer 22 is disposed in the rotating frame 21 and fixed by a spinning ring 221; the outer side wall of the rotating frame 21 is provided a rotating bead 21 1 , the inner side wall of the rear frame 1 is provided with a first card slot 1 1 ; the ND filter 3 is mainly composed of a filter frame 31 and an ND lens 32; wherein the ND lens 32 The filter frame 31 is disposed in the filter frame 31 and passes through the spinning ring 321; the outer side wall of the filter frame 31 is provided with a block 311; the inner side wall of the rear frame 1 is provided with a second card slot 12 and a card inlet 13 adapted to the card block 31 1; the filter frame 31 is further provided with a locking member, the locking member is a locking screw 313, mainly composed of a threaded portion 314 and a holding portion 315, One end of the threaded portion 314 is connected to the holding portion 315 and integrally formed; and the rear frame 1 is provided with a limiting chute 14 toward the end surface of the ND filter 3 .
组装时，首先将 CPL偏光镜 2装置在后镜框 1 的环形内，且使旋转 框 21 的旋转凸筋 211 可转动地卡在后镜框 1 的第一卡槽 1 1 内；接着将 ND滤镜 3滤镜框 31上的卡块 311经后镜框 1的卡入口 13卡入第二卡槽 12内 ，使卡块 31 1随 ND滤镜 3的旋转在第二卡槽 12内滑动；最后将锁 定螺丝 313拧进滤镜框 31设有的螺丝孔 312 ,使其螺纹部 314的末端卡 在限位滑槽 14内，并随 ND滤镜 3的旋转在限位滑槽 14内滑动。  When assembling, the CPL polarizer 2 is first placed in the ring of the rear frame 1, and the rotating bead 211 of the rotating frame 21 is rotatably caught in the first card slot 1 1 of the rear frame 1; then the ND filter is applied The card block 311 on the filter frame 31 is inserted into the second card slot 12 via the card inlet 13 of the rear frame 1, so that the block 31 1 slides in the second card slot 12 with the rotation of the ND filter 3; The locking screw 313 is screwed into the screw hole 312 provided in the filter frame 31 such that the end of the threaded portion 314 is caught in the limiting chute 14 and slides in the limiting chute 14 in accordance with the rotation of the ND filter 3.
使用时，本发明所述的多功能 CPL偏光、 可调 ND滤镜通过后镜框 1 后端的外侧侧壁上设有的外螺纹安装在拍摄设备的镜头上，具有可调 ND 功能；当拧松锁定螺丝 313并将旋转 ND滤镜 3 ,使卡块 311位于卡入口 13处时，即可将 ND滤镜 3拆卸，与后镜框 1分离，此时本多功能 CPL 偏光、 可调 ND滤镜具有 CPL偏光功能。  In use, the multifunctional CPL polarized and adjustable ND filter of the present invention is mounted on the lens of the photographing device through the external thread provided on the outer side wall of the rear end of the rear frame 1, and has an adjustable ND function; When the screw 313 is locked and the ND filter 3 is rotated so that the block 311 is located at the card inlet 13, the ND filter 3 can be detached and separated from the rear frame 1. At this time, the multi-function CPL polarized, adjustable ND filter With CPL polarizing function.
这样，用户只需购买一个本发明所述的多功能 CPL偏光、可调 ND滤 镜即可满足 CPL偏光功能和可调 ND功能的需求，减少了重复性的产品购 买，大大节省了开支， 同时携带和保存轻松、 方便，而且只需通过拆卸、 组装 ND滤镜 3即可完成 CPL偏光功能和可调 ND功能的切换，操作非常 简单、 方便、 快捷。  In this way, the user only needs to purchase a multi-function CPL polarized and adjustable ND filter according to the present invention to meet the requirements of the CPL polarizing function and the adjustable ND function, thereby reducing repetitive product purchase and greatly saving expenses. It is easy and convenient to carry and store, and the CPL polarizing function and the adjustable ND function can be switched by simply disassembling and assembling the ND filter 3. The operation is very simple, convenient and fast.
当然，所述 ND滤镜 3与后镜框 1之间的卡块卡槽结构也可以是：所 述滤镜框 31 的外侧侧壁设有与前述相同的第二卡槽和卡入口 ，所述后镜 框 1的内侧侧壁相应位置设有与该卡入口相适配的卡块，且朝向 ND滤镜 3 的端面设有限位滑槽；所述滤镜框 31 上还设有锁位部件（即锁定螺丝 313 ) ;组装时，所述卡块也是经所述卡入口卡入所述第二卡槽内 ，并随 ND滤镜 3的旋转在第二卡槽内滑动，所述锁位部件卡在所述限位滑槽内， 并随 ND滤镜 3的旋转在所述限位滑槽内滑动。 所述旋转框 21 的外侧侧 壁设有第一卡槽，所述后镜框 1的内侧侧壁设有旋转凸筋；组装时，所述 旋转凸筋可转动地卡在所述第一卡槽内。 Of course, the card slot structure between the ND filter 3 and the rear frame 1 may be: the outer side wall of the filter frame 31 is provided with the same second card slot and card inlet as described above, The inner side wall of the rear frame 1 is provided with a block corresponding to the entrance of the card, and a limiting slot is provided toward the end surface of the ND filter 3; the filter frame 31 is further provided with a locking component ( That is, the locking screw 313); when assembled, the card block is also inserted into the second card slot through the card inlet, and slides in the second card slot with the rotation of the ND filter 3, the locking component The card is stuck in the limiting slot and slides in the limiting slot with the rotation of the ND filter 3. The outer side wall of the rotating frame 21 is provided with a first card slot, and the inner side wall of the rear frame 1 is provided with a rotating rib; when assembled, the A rotating rib is rotatably received in the first card slot.
实施例二：  Embodiment 2:
如图 5中所示，本发明实施例二所述的一种多功能 CPL偏光、 可调 ND滤镜的结构基本与实施例一相同，包括有一环形后镜框 1、 - CPL偏 光镜 2和一 ND滤镜 3；所述 CPL偏光镜 2设于后镜框 1的环形内，并与 后镜框 1的内侧侧壁转动连接；所述 ND滤镜 3的一端卡块卡槽结构可拆 卸并旋转可调地与后镜框 1连接，位于 CPL偏光镜 2的前方。 区别仅在 于，所述后镜框 1的外侧侧壁设有与实施例一同样的锁位部件，即锁定螺 丝 313 ,所述 ND滤镜 3的外侧侧壁相应位置设有限位滑槽；组装时，所 述锁位部件（即锁定螺丝 313的螺纹部的末端）卡在所述限位滑槽内，并 随 ND滤镜 3的旋转在所述限位滑槽内滑动。 ，  As shown in FIG. 5, the structure of a multi-function CPL polarized and adjustable ND filter according to the second embodiment of the present invention is basically the same as that of the first embodiment, and includes a ring-shaped rear frame 1, a CPL polarizer 2, and a The ND filter 3 is disposed in the annular shape of the rear frame 1 and is rotatably connected to the inner side wall of the rear frame 1; the card slot structure of the ND filter 3 is detachable and rotatable. The grounding is connected to the rear frame 1 and is located in front of the CPL polarizer 2. The difference is only that the outer side wall of the rear frame 1 is provided with the same locking component as that of the first embodiment, that is, the locking screw 313, and the outer side wall of the ND filter 3 is provided with a limiting chute; The locking member (ie, the end of the threaded portion of the locking screw 313) is caught in the limiting slot and slides in the limiting slot with the rotation of the ND filter 3. ,
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普 通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和 润饰,这些改进和润饰也视为本发明的保护范围。  The above is a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It is the scope of protection of the present invention.

Claims

权 利 要 求 书 Claim
1.一种多功能 CPL偏光、 可调 ND滤镜，其特征在于：包括有一环形 后镜框（ 1 - CPL偏光镜（ 2 )和一 ND滤镜（ 3 ) ;所述 CPL偏光镜（ 2 ) 设于所述后镜框（ 1 )的环形内 ，并与所述后镜框（ 1 )的内侧侧壁转动连 接；所述 ND滤镜（ 3 )的一端采用卡块卡槽结构可拆卸并旋转可调地与所 述后镜框（ 1 )连接，位于所述 CPL偏光镜（ 2 )的前方。 A multifunctional CPL polarized, adjustable ND filter comprising: a ring-shaped rear frame (1 - CPL polarizer (2) and an ND filter (3); said CPL polarizer (2) It is disposed in the annular shape of the rear frame (1) and is rotatably connected to the inner side wall of the rear frame (1); one end of the ND filter (3) is detachable and rotatable by using a card slot structure. Grounding is connected to the rear frame (1) and is located in front of the CPL polarizer (2).
2.根据权利要求 1所述的多功能 CPL偏光、可调 ND滤镜，其特征在 于：所述 ND滤镜（ 3 )主要由滤镜框（ 31 )和设于所述滤镜框（ 31 )上 的 ND镜片（ 32 )组成；所述滤镜框（ 31 )的外侧侧壁设有卡块（ 31 1 )； 所述后镜框（ 1 )的内侧侧壁设有第二卡槽（ 12 )和与所述卡块（ 31 1 )相 适配的卡入口（ 13 ) ;组装时，所述卡块（ 31 1 )经所述卡入口（ 13 )卡入 所述第二卡槽（ 12 )内，并随所述 ND滤镜（ 3 )的旋转在所述第二卡槽The multifunctional CPL polarized, tunable ND filter according to claim 1, wherein the ND filter (3) is mainly composed of a filter frame (31) and a filter frame (31). The ND lens (32) is formed; the outer side wall of the filter frame (31) is provided with a block (31 1 ); and the inner side wall of the rear frame (1) is provided with a second card slot (12) And a card inlet (13) adapted to the card block (31 1 ); when assembled, the card block (31 1 ) is snapped into the second card slot via the card inlet (13) (12) Inside, and with the rotation of the ND filter (3) in the second card slot
( 12 )内滑动。 (12) Sliding inside.
3.根据权利要求 2所述的多功能 CPL偏光、可调 ND滤镜，其特征在 于：所述滤镜框（ 31 )上还设有锁位部件，所述后镜框（ 1 )朝向所述 ND 滤镜（ 3 )的端面设有限位滑槽（ 14 ) ,或者所述后镜框（ 1 )的外侧侧壁 设有锁位部件，所述 ND滤镜（ 3 )的外侧侧壁相应位置设有限位滑槽；组 装时，所述锁位部件卡在所述限位滑槽（ 14 )内 ，并随所述 ND滤镜（ 3 ) 的旋转在所述限位滑槽（ 14 )内滑动。 The multi-function CPL polarized, adjustable ND filter according to claim 2, wherein the filter frame (31) is further provided with a locking member, and the rear frame (1) faces the The end surface of the ND filter (3) is provided with a limiting chute (14), or the outer side wall of the rear frame (1) is provided with a locking member, and the outer side wall of the ND filter (3) is correspondingly positioned. a limited position chute; during assembly, the locking member is caught in the limit chute (14) and slides in the limit chute (14) as the ND filter (3) rotates .
4.根据权利要求 1所述的多功能 CPL偏光、可调 ND滤镜，其特征在 于：所述 ND滤镜（ 3 )主要由滤镜框（ 31 )和设于所述滤镜框（ 31 )上 的 ND镜片（ 32 )组成；所述滤镜框（ 31 )的外侧侧壁设有第二卡槽和卡 入口 ；所述后镜框（ 1 )的内侧侧壁相应位置设有与所述卡入口相适配的 卡块；组装时，所述卡块经所述卡入口卡入所述第二卡槽内 ，并随所述 ND 滤镜（ 3 )的旋转在所述第二卡槽内滑动。 The multifunctional CPL polarized, adjustable ND filter according to claim 1, wherein the ND filter (3) is mainly composed of a filter frame (31) and is disposed in the filter frame (31) The ND lens (32) is formed; the outer side wall of the filter frame (31) is provided with a second card slot and a card inlet; the inner side wall of the rear frame (1) is provided at the corresponding position The card inlet is adapted to the card slot; when assembled, the card block is inserted into the second card slot through the card inlet, and the second card slot is rotated with the ND filter (3) Sliding inside.
5.根据权利要求 4所述的多功能 CPL偏光、可调 ND滤镜，其特征在 于：所述滤镜框（ 31 )上还设有锁位部件，所述后镜框（ 1 )朝向所述 ND 滤镜（ 3 )的端面设有限位滑槽，或者所述后镜框（ 1 )的外侧侧壁设有锁 位部件，所述 ND滤镜（ 3 )的外侧侧壁相应位置设有限位滑槽；组装时， 所述锁位部件卡在所述限位滑槽内，并随所述 ND滤镜（ 3 )的旋转在所述 限位滑槽内滑动。 5. The multifunctional CPL polarized, tunable ND filter according to claim 4, characterized in The filter frame (31) is further provided with a locking component, and the rear frame (1) is provided with a limiting sliding slot toward the end surface of the ND filter (3), or the rear frame (1) The outer side wall of the ND filter (3) is provided with a limiting chute; and when assembled, the locking component is caught in the limiting chute, and The rotation of the ND filter (3) slides within the limit chute.
6.根据权利要求 3或 5所述的多功能 CPL偏光、可调 ND滤镜，其特 征在于：所述锁位部件是一锁定螺丝（ 313 ) ,主要由螺纹部（ 314 )和镊 持部（ 315 )组成，所述螺纹部（ 314 )的一端与所述镊持部（ 315 )连接， 另一端拧进所述滤镜框（ 31 )设有的螺丝孔（ 312 ) ,且末端卡在所述限位 滑槽内。 The multifunctional CPL polarized, adjustable ND filter according to claim 3 or 5, wherein the locking member is a locking screw (313) mainly composed of a threaded portion (314) and a holding portion (315), the threaded portion (314) has one end connected to the holding portion (315), and the other end screwed into the screw hole (312) provided in the filter frame (31), and the end is stuck The limit chute is inside.
7.根据权利要求 6所述的多功能 CPL偏光、可调 ND滤镜，其特征在 于：所述螺纹部（ 314 )与镊持部（ 315 )一体成型。 The multifunctional CPL polarized, adjustable ND filter according to claim 6, wherein the threaded portion (314) is integrally formed with the holding portion (315).
8.根据权利要求 1至 5中任何一项所述的多功能 CPL偏光、可调 ND 滤镜，其特征在于：所述 CPL偏光镜（ 2 )主要由旋转框（ 21 )和设于所 述旋转框（ 21 )上的 CPL偏光片（ 22 )组成，所述旋转框（ 21 )的外侧 侧壁设有旋转凸筋（ 211 )，所述后镜框（ 1 )的内侧侧壁设有第一卡槽（ 11 ) ; 组装时，所述旋转凸筋（ 21 1 )可转动地卡在所述第一卡槽（ 1 1 )内。 The multi-function CPL polarized, adjustable ND filter according to any one of claims 1 to 5, characterized in that the CPL polarizer (2) is mainly composed of a rotating frame (21) and a CPL polarizer (22) on the rotating frame (21), the outer side wall of the rotating frame (21) is provided with a rotating rib (211), and the inner side wall of the rear frame (1) is first The card slot (11); when assembled, the rotating rib (21 1 ) is rotatably caught in the first card slot (1 1 ).
9.根据权利要求 1至 5中任何一项所述的多功能 CPL偏光、可调 ND 滤镜，其特征在于：所述 CPL偏光镜（ 2 )主要由旋转框（ 21 )和设于所 述旋转框（ 21 )上的 CPL偏光片（ 22 ) ,所述旋转框（ 21 )的外侧侧壁设 有卡槽，所述后镜框（ 1 )的内侧侧壁设有旋转凸筋；组装时，所述旋转 凸筋可转动地卡在所述第一卡槽内。 The multi-function CPL polarized, adjustable ND filter according to any one of claims 1 to 5, characterized in that the CPL polarizer (2) is mainly composed of a rotating frame (21) and is provided in the a CPL polarizer (22) on the rotating frame (21), the outer side wall of the rotating frame (21) is provided with a card slot, and the inner side wall of the rear frame (1) is provided with a rotating rib; when assembled, The rotating rib is rotatably captured in the first card slot.
PCT/CN2013/083087 2013-05-31 2013-09-07 Multi-function cpl polarizing and adjustable nd filter WO2014190634A1 (en)

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US20210239890A1 (en) * 2021-03-10 2021-08-05 Polar Pro Filters, Inc. Locking variable neutral density filter

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