CN212341554U

CN212341554U - Filter lens

Info

Publication number: CN212341554U
Application number: CN202021393068.8U
Authority: CN
Inventors: 邱晶; 叶世贤
Original assignee: Shenzhen Amido Technology Co ltd
Current assignee: Shenzhen Amido Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-01-12
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to the technical field of photographic equipment, and provides a filter, which comprises a first component, a second component, balls and a spring, wherein the first component comprises a first picture frame and a first lens, the first picture frame is provided with at least one ball clamping groove, the second component comprises a second picture frame and a second lens, the second picture frame is provided with a holding cavity, the spring is clamped in the holding cavity, the spring supports the balls between the first picture frame and the second picture frame, the first picture frame and the second picture frame are relatively rotated to control the balls to move from one ball clamping groove to the other ball clamping groove so as to adjust the light transmittance between the first lens and the second lens, the utility model adjusts the light transmittance between the first lens and the second lens by controlling the movement of the balls through the relative rotation of the first picture frame and the second picture frame, and accurately controls the adjusting angle, the accuracy and efficiency of adjusting the luminousness are improved.

Description

Filter lens

Technical Field

The utility model relates to a photographic goods technical field especially relates to a filter.

Background

At present, most of filters need to rotate the angles of two lenses to obtain different transmittances in order to ensure that the filtering characteristics of the filters are consistent with a calibrated value, for example, the ND value, i.e. the transmittance, of an adjustable ND filter is closely related to the relative angles of the front and rear lenses. The adjustment of the angle of filter for realizing two lenses among the prior art, through beating damping oil between last picture frame and lower picture frame, the luminousness of filter is adjusted to two picture frames of resistance rotation through damping oil, because rotate accommodation process and rely on the unable accurate control angle of adjustment of damping oil completely, the degree of accuracy of adjusting the luminousness is not high, and is inefficient.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention provides a filter, which can precisely control the adjustment angle by adjusting the light transmittance between the first lens and the second lens by providing a ball groove structure between two lens frames, thereby improving the accuracy and efficiency of adjusting the light transmittance of the filter.

A lens assembly, comprising: the spring is connected with the first assembly, the spring enables the balls to abut against any one of the ball clamping grooves and between the second assembly, and the first lens frame and the second lens frame rotate relatively to enable the balls to move in the ball clamping grooves to adjust light transmittance between the first lens and the second lens.

Furthermore, the first frame is clamped with the second frame.

Furthermore, the outer wall surface of one end of the first lens frame is provided with a first flange along the circumferential direction, and the position of the inner wall surface of the second lens frame corresponding to the first flange is provided with a first groove.

Furthermore, a second groove is formed in one end, connected in a clamped mode, of the first mirror frame and the second mirror frame in the circumferential direction, a second flange is arranged on the inner wall face of the end, connected in a clamped mode, of the second mirror frame and corresponds to the second groove, and the first mirror frame and the second mirror frame rotate mutually to enable the second flange and the second groove to move mutually.

Furthermore, the second glasses frame is provided with an accommodating cavity, and the spring is clamped and sleeved in the accommodating cavity.

Furthermore, at least one first positioning point is arranged at the edge of the first lens, at least one second positioning point corresponding to the at least one first positioning point is arranged on the first lens frame, the shape of the at least one first positioning point is embedded with the shape of the at least one second positioning point, a first step part for bearing the first lens is further arranged on the first lens frame, and the first lens is arranged on the first step part and fixedly connected with the first lens frame.

Furthermore, the first assembly further comprises a first pressing ring, and the first pressing ring is pressed above the first lens, so that the first lens is abutted against the first step part and is fixedly connected with the first lens frame.

Furthermore, at least one third positioning point is arranged at the edge of the second lens, at least one fourth positioning point corresponding to the at least one third positioning point is arranged on the second lens frame, the shape of the at least one third positioning point is embedded with the shape of the at least one fourth positioning point, a second step part for bearing the second lens is further arranged on the second lens frame, and the second lens is mounted on the second step part and fixedly connected with the second lens frame.

Furthermore, the second assembly further comprises a second pressing ring, and the second pressing ring is pressed above the second lens, so that the second lens is abutted against the second step part and is fixedly connected with the second lens frame.

Further, the first lens and the first frame are bonded by an adhesive, or the second lens and the second frame are bonded by an adhesive.

The utility model discloses beneficial effect:

adopt the utility model discloses a filter through set up ball draw-in groove structure between two picture frames, the rotation each other first picture frame and second picture frame are controlled the ball moves another ball draw-in groove from a ball draw-in groove to adjust the luminousness between first lens and the second lens, the angle that the control that can be accurate was adjusted has improved the regulation the degree of accuracy and the efficiency of the luminousness of filter.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a filter according to an embodiment of the present invention;

fig. 2 is an exploded view of a filter according to an embodiment of the present invention;

fig. 3 is an exploded view of a filter according to an embodiment of the present invention;

fig. 4 is an exploded view of a filter according to an embodiment of the present invention;

fig. 5 is a cross-sectional view taken along section line V-V in fig. 1 according to an embodiment of the present invention.

Description of the main elements

Filter 100 first Assembly 10 first lens 11

First positioning point 111 and ball clamping groove 121 of first spectacle frame 12

First flange 122, second groove 123, second positioning point 124

First step 125 first clamping ring 13 balls 20

Spring 30 second assembly 40 second lens 41

Third positioning point 411 second frame 42 receiving cavity 421

First recess 422 second ledge 423 fourth anchor point 424

Second step 425 second pressing ring 43

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

The terms "first" and "second," and the like in the description and claims of the present invention and the above-described drawings are used for distinguishing between different objects and not for describing a particular order. To the extent that the term "includes" and any variations thereof are used in either the detailed description or the claims, as well as the appended drawings, this is intended to cover non-exclusive inclusions.

Example one

Referring to fig. 1 to 2, in the filter 100 of the present embodiment, the filter 100 includes a first component 10, a second component 40, a ball and a spring 30, the spring 30 is connected to the second component 40, the spring 30 pushes the ball against between the first component 10 and the second component 40, and the first component 10 and the second component 40 rotate mutually to adjust the light transmittance of the filter 100.

Referring to fig. 3 and 4, the first assembly 10 includes a first frame 12 and a first lens 11, and the first frame 12 is provided with at least one ball catching groove 121 for movement of the ball 20.

The outer wall surface of one end of the first frame 12 is provided with a first flange 122 along the circumferential direction for clamping the second frame 42.

The edge of the first lens 11 is provided with at least one first positioning point 111, the first frame 12 is provided with at least one second positioning point 124 corresponding to the at least one first positioning point 111, the shape of the at least one first positioning point 111 is embedded with the shape of the at least one second positioning point 124, the first frame 12 is further provided with a first step portion 125 for bearing the first lens 11, and the first lens 11 is mounted on the first step portion 125 and fixedly connected with the first frame 12.

Preferably, the first lens 11 and the first frame 12 may be bonded by an adhesive, wherein the adhesive may be other adhesive such as glue.

Preferably, the first assembly 10 further includes a first pressing ring 13, and the first pressing ring 13 is pressed above the first lens 11 so that the first lens 11 abuts against the first step portion 125 and is fixedly connected to the first frame 12.

Referring to fig. 3 to 5, the second assembly 40 includes a second frame 42 and a second lens 41, and the second frame 42 is provided with a receiving cavity 421 for receiving the spring 30.

A first groove 422 is provided along the circumferential direction on the inner wall surface of the second frame 42, and the shape of the first flange 122 is fitted to the shape of the first groove 422.

In this embodiment, the first groove 422 and the first flange 122 are used to connect the first frame 12 and the second frame 42, so that the frames can be mounted without using tools, thereby improving the assembly efficiency of the filter 100.

One end of the first lens frame 12, which is connected with the second lens frame 42 in a clamped manner, is provided with a second groove 123 with a preset circumference along the circumferential direction, the inner wall surface of one end of the second lens frame 42, which is connected with the first lens frame 12 in a clamped manner, is provided with a second flange 423, and the first lens frame 12 and the second lens frame 42 rotate mutually to control the second flange 423 to move in the second groove 123.

In this embodiment, the circumference of the second groove 123 may be set in advance according to the rotation angle, and by setting the second groove 123 with a preset circumference, the rotation angles of the first assembly 10 and the second assembly 40 may be accurately positioned, so that the accuracy of adjusting the rotation angles is improved.

At least one third positioning point 411 is arranged at the edge of the second lens 41, at least one fourth positioning point 424 corresponding to the at least one third positioning point 411 is arranged on the second frame 42, the shape of the at least one third positioning point 411 is embedded with the shape of the at least one fourth positioning point 424, a second step portion 425 used for bearing the second lens 41 is further arranged on the second frame 42, and the second lens 41 is mounted on the second step portion 425 and fixedly connected with the second frame 42.

Preferably, the second lens 41 and the second frame 42 can be bonded by an adhesive, wherein the adhesive can be other adhesive such as glue.

Preferably, the second assembly 40 further includes a second pressing ring 43, and the second pressing ring 43 is pressed above the second lens 41, so that the second lens 41 abuts against the second step portion 425 and is fixedly connected to the second frame 42.

In this embodiment, the spring 30 is clamped in the accommodating cavity 421, the spring 30 pushes the ball 20 against between the first frame 12 and the second frame 42, and the first frame 12 and the second frame 42 are relatively rotated to move the ball 20 from one of the ball slots 121 to the other of the ball slots 121 to adjust the light transmittance between the first lens 11 and the second lens 41.

In this embodiment, since the balls 20 are preset when moving from one ball slot 121 to another ball slot 121, the first frame 12 and the second frame 42 are relatively rotated to enable the balls 20 to move to adjust the light transmittance between the first lens 11 and the second lens 41, so as to precisely control the adjustment angle, and improve the accuracy and efficiency of adjusting the light transmittance.

It is understood that in other embodiments, the shape of the first positioning point 111 is a third flange protruding outward away from the center of the first lens 11 or a third groove recessed inward toward the center of the first lens 11, and the shape of the third flange or the third groove is not limited herein.

It is understood that, in other embodiments, the shape of the third positioning point 411 is a fourth flange protruding outward away from the center of the second lens 41 or a fourth groove recessed inward toward the center of the second lens 41, and the shape of the fourth flange or the fourth groove is not limited herein.

In summary, in the filter 100 provided by the present embodiment, the first lens frame 12 and the second lens frame 42 are relatively rotated to enable the balls 20 to move to adjust the light transmittance between the first lens 11 and the second lens 41, so that the adjustment angle can be precisely controlled, and the accuracy and efficiency of adjusting the light transmittance of the filter 100 are improved.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A filter, comprising: the spring is connected with the first assembly, the spring enables the balls to abut against any one of the ball clamping grooves and between the second assembly, and the first lens frame and the second lens frame rotate relatively to enable the balls to move in the ball clamping grooves to adjust light transmittance between the first lens and the second lens.

2. The filter of claim 1, wherein the first frame is snap-fit to the second frame.

3. The filter according to claim 2, wherein an outer wall surface of one end of the first lens frame is provided with a first flange along a circumferential direction, and an inner wall surface of the second lens frame is provided with a first groove at a position corresponding to the first flange.

4. The filter according to claim 3, wherein a second groove is formed in an end of the first frame member where the second frame member is engaged with the first frame member along a circumferential direction, a second flange is formed on an inner wall surface of an end of the second frame member where the second frame member is engaged with the first frame member, the second flange and the second groove being moved relative to each other by rotating the first frame member and the second frame member relative to each other.

5. The filter according to claim 1, wherein said second frame defines a receiving cavity, and said spring is captured within said receiving cavity.

6. The filter according to any one of claims 1 to 5, wherein the edge of the first lens has at least one first positioning point, the first frame has at least one second positioning point corresponding to the at least one first positioning point, the at least one first positioning point has a shape that fits with the at least one second positioning point, the first frame further has a first step portion for carrying the first lens, and the first lens is mounted on the first step portion and fixedly connected to the first frame.

7. The filter of claim 6, wherein the first assembly further comprises a first pressing ring, and the first pressing ring is pressed above the first lens so that the first lens abuts against the first step portion and is fixedly connected with the first lens frame.

8. The filter of claim 7, wherein the second lens has at least one third positioning point at an edge thereof, the second frame has at least one fourth positioning point corresponding to the at least one third positioning point, the at least one third positioning point has a shape that is engaged with the at least one fourth positioning point, the second frame further has a second step portion for supporting the second lens, and the second lens is mounted on the second step portion and fixedly connected to the second frame.

9. The filter of claim 8, wherein the second assembly further comprises a second pressing ring, and the second pressing ring is pressed above the second lens so that the second lens abuts against the second step portion and is fixedly connected with the second lens frame.

10. The filter of claim 9, wherein the first lens is bonded to the first frame by an adhesive or the second lens is bonded to the second frame by an adhesive.