CN201716454U

CN201716454U - Optical filter connecting structure

Info

Publication number: CN201716454U
Application number: CN2009200798923U
Authority: CN
Inventors: 陈晖�; 陈蓉; 何世刚
Original assignee: CHENGDU BOOST TECHNOLOGY Co Ltd
Current assignee: CHENGDU BOOST INFORMATION TECHNOLOGY INC.
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2011-01-19
Anticipated expiration: 2019-03-30

Abstract

The utility model discloses an optical filter connecting structure which is characterized in that two permanent magnets (1 and 6) capable of attracting each other are symmetrically embedded on brackets (8), and two permanent magnets (2 and 7) capable of attracting each other are symmetrically embedded on bases (3). Due to the attraction between the permanent magnets, the optical filter brackets (8) can be tightly connected with the bases (3) when the permanent magnets (2 and 7) on the bases are in contact with the permanent magnets (1 and 6) on the brackets. Furthermore, the brackets (8) can be connected with each other in a cascaded manner. The utility model relies on magnetic force for connection, thereby facilitating the optical filter replacement process.

Description

A kind of optical filter syndeton

Technical field

The utility model relates to a kind of optical filter syndeton.

Background technology

Optical filter and camera lens ways of connecting generally are to use and are threaded.In use, the different optical filter of frequent if desired replacing, even need the overlapping use of multiple optical filters, then can feel very inconvenient in use.

The utility model content

In order to solve the problem that is convenient for changing different optical filters, the utility model has adopted a kind of optical filter syndeton, comprise the basis seat, pressure ring, optical filter and support, optical filter is positioned at the groove on the support, pressure ring is pushed down optical filter, pressure ring and support threadably or interference fit be connected, it is characterized in that, inlay mounting permanent magnet on the seat of basis, permanent magnet magnetic is symmetrically arranged on the seat of basis on the contrary, inlay mounting permanent magnet on the support, permanent magnet magnetic is symmetrically arranged on the support on the contrary, and the permanent magnet on the seat of basis contacts respectively mutually with the permanent magnet on the support to be inhaled.

The purpose of this utility model is a more convenient and quicker when changing different optical filter, owing to adopted the magnetic ways of connecting, utilizes the magnetive attraction of permanent magnet, and filter supporter can be linked together with the basis seat firmly.

Description of drawings

The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:

Fig. 1 is the cross-sectional view of support;

Fig. 2 is the cross-sectional view of basis seat;

Fig. 3 is the structural representation of embodiment one;

Fig. 4 is the structural representation of embodiment two;

Embodiment

Fig. 5 is the structural representation of embodiment three.

Disclosed all features in this instructions, or the step in disclosed all methods or the process except mutually exclusive feature and/or step, all can make up by any way.

Disclosed arbitrary feature in this instructions (comprising any accessory claim, summary and accompanying drawing) is unless special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, unless special narration, each feature is an example in a series of equivalences or the similar characteristics.

Embodiment one:

In conjunction with Fig. 1, Fig. 2 and Fig. 3, inlay in the through hole 9 on the support 8 two pieces of

permanent magnets

1 and 6 are installed, opposite and the symmetrical distribution of

permanent magnet

1 and 6 magnetic, in the groove 10 of support 8 optical filter 5 is installed, pressure ring 4 is arranged on the optical filter 5, pressure ring 4 is connected threadably with the threaded hole 11 of support 8, and support 8 rear ends are outwards outstanding; Inlay in the through hole 13 on the basis seat 3 two pieces of

permanent magnets

2 and 7 are installed, opposite and the symmetrical distribution of

permanent magnet

2 and 7 magnetic, the front end of basis seat 3 caves inward, and its sunk structure is corresponding with the structure that outwards give prominence to support 8 rear ends, and the rear end of basis seat 3 is connected with camera lens threadably.In use, two pieces of permanent magnets 2 on the basis seat 3 with 7 with support 8 on two pieces of permanent magnets 1 with the `6 combination in any it is contacted, just can realize that the utility model changes the purpose of optical filter fast.

Embodiment two:

In conjunction with Fig. 1, Fig. 2 and Fig. 4, inlay in the through hole 9 on the support 8 two pieces of

permanent magnets

1 and 6 are installed, opposite and the symmetrical distribution of

permanent magnet

1 and 6 magnetic, in the groove 10 of support 8 optical filter 5 is installed, pressure ring 4 is arranged on the optical filter 5, pressure ring 4 is connected threadably with the threaded hole 11 of support 8, and support 8 rear ends are outwards outstanding; Inlay in the through hole 12 on the basis seat 3 two pieces of

permanent magnets

2 and 7 are installed, opposite and the symmetrical distribution of

permanent magnet

2 and 7 magnetic, the front end of basis seat 3 caves inward, and its sunk structure is corresponding with the structure that outwards give prominence to support 8 rear ends, and the rear end of basis seat 3 is connected with camera lens threadably.In use, need the optical filter on 3 supports, at this moment, two pieces of permanent magnets 2 on the basis seat 3 with 7 with support 8 on two pieces of permanent magnets 1 with 6 combination in any it is contacted, two pieces of permanent magnets 1 on the

support

8 and 6 can also contacts arbitrarily to make up and make its contact with the two pieces of

permanent magnets

2 and 7 on the same support 8, can also add a support 8, make on the support 8 two pieces of permanent magnets 2 with 7 with before support 8 on two pieces of permanent magnets 2 with 7 combination in any it is contacted, to realize using the purpose of a plurality of optical filters.

Embodiment three:

By shown in Figure 5, this is a kind of syndeton of reflective lens optical filter, shading sleeve 13 connects as one with the basis seat, four pieces of permanent magnet 14 magnet magnetic are opposite, be symmetrically distributed separately, inlay and be installed on support and the basis seat, permanent magnet 14 is positioned at the outer ring of shading sleeve 13, and the connected mode of pressure ring and support is an interference fit.

Magnet number in the utility model can be even numbers such as 2,4, as long as be symmetrically arranged in separately on the contrary on basis seat and the support every magnetic.The optical filtering external member that embodiment one is connected with magnetic among the embodiment two is applicable to the zoom and the tight shot of the different burnt sections of different bores that comprise transmission-type camera lens and refraction-reflection camera lens.Be installed in camera lens foremost, also can be installed in the front of light shield.Can take off optical filtering just can the normal mounting lens cap.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. optical filter syndeton, comprise basis seat (3), pressure ring (4), optical filter (5) and support (8), optical filter (5) is positioned at the groove (10) on the support (8), pressure ring (4) is pushed down optical filter (5), pressure ring (4) and support (8) threadably or interference fit be connected, it is characterized in that, inlay mounting permanent magnet (2) and (7) on the basis seat (3), permanent magnet (2) and (7) magnetic are symmetrically arranged on the basis seat (3) on the contrary, inlay mounting permanent magnet (1) and (6) on the support (8), permanent magnet (1) and (6) magnetic are symmetrically arranged on the support (8) on the contrary, and the permanent magnet (2) on the basis seat (3) and (7) contact suction mutually with permanent magnet (1) on the support (8) respectively with (6).

2. optical filter syndeton according to claim 1 is characterized in that, support (8) and another support (8) are inlayed the opposite permanent magnet of magnetic that is installed on the support (8) by symmetry and be connected.

3. optical filter syndeton according to claim 1 is characterized in that, the number that basis seat (3) is gone up permanent magnet is an even number, and the direction of permanent magnet is that one positive one anti-phase interval is symmetrically arranged on the basis seat (3).

4. optical filter syndeton according to claim 1 is characterized in that, the number that support (8) is gone up permanent magnet is an even number, and the direction of permanent magnet is that one positive one anti-phase interval is symmetrically arranged on the support (8).

5. optical filter syndeton according to claim 1 is characterized in that, the front end of basis seat (3) caves inward, and the front end of support (8) caves inward, and the rear end is outwards outstanding.

6. optical filter syndeton according to claim 5, it is characterized in that, basis seat (3) front end frame mode that caves inward with support (8) front end that caves inward is identical, and basis seat (3) front end caves inward corresponding with the outside frame mode of giving prominence in support (8) rear end.