CN211293421U - Focusing module with improved structure - Google Patents

Focusing module with improved structure Download PDF

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Publication number
CN211293421U
CN211293421U CN201922155941.3U CN201922155941U CN211293421U CN 211293421 U CN211293421 U CN 211293421U CN 201922155941 U CN201922155941 U CN 201922155941U CN 211293421 U CN211293421 U CN 211293421U
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China
Prior art keywords
ring
base
focusing
movable
movable focusing
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CN201922155941.3U
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Chinese (zh)
Inventor
钟木生
***
赵少伟
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Dongguan Vide Technology Co ltd
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Dongguan Vide Technology Co ltd
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Abstract

The utility model discloses a focusing module with improved structure, which comprises a casing connecting base, a snap ring, a movable focusing wheel, a movable focusing ring and a ball bearing; the shell connecting base is provided with a base light-transmitting through hole, the shell connecting base is provided with a base connecting circular ring and a base limiting retaining shoulder, and the upper end part of the outer circumferential surface of the base connecting circular ring is provided with an external thread; the inner circumferential surface of the clamping ring is provided with internal threads of the clamping ring, and the internal threads of the clamping ring are in threaded connection with the external threads of the base connecting ring; the movable focusing wheel is in a circular ring shape, the ball bearing is in interference fit with a central hole of the movable focusing wheel, and the inner ring of the ball bearing is clamped and limited between the clamping ring and the base limiting retaining shoulder; the movable focusing ring is positioned on the upper end side of the movable focusing wheel and connected with the upper end part of the movable focusing wheel, and a focusing ring light-transmitting through hole is formed in the middle of the movable focusing ring. Through the structure design, the utility model has the advantages of structural design is novel, reliable and stable nature is good, focusing does not have virtual burnt.

Description

Focusing module with improved structure
Technical Field
The utility model relates to an optical device technical field especially relates to a focus module of institutional advancement.
Background
For a camera, in the process of taking pictures and images, in order to ensure the definition of the pictures or images taken, focusing and focusing operations need to be performed on the camera lens of the camera during use.
It should be noted that, for the lens module of the existing camera, during the focusing process, the phenomenon of relatively serious virtual focus occurs, which will affect the image quality and is difficult to satisfy the requirement of high quality and high precision.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a focus module of institutional advancement to prior art's not enough, this configuration improvement's focus module structural design is novel, reliable and stable good, the focusing does not have virtual burnt.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A focusing module with improved structure comprises a shell connecting base, a clamping ring, a movable focusing wheel, a movable focusing ring and a ball bearing;
a base light-transmitting through hole which completely penetrates through the upper part and the lower part is formed in the middle of the case connection base, a base connection circular ring which protrudes upwards and extends in a circular ring shape is arranged on the periphery of the case connection base on the base light-transmitting through hole, external threads are arranged at the upper end part of the outer circumferential surface of the base connection circular ring, and a base limiting retaining shoulder is arranged at the lower end part of the outer circumferential surface of the base connection circular ring;
the clamping ring is in a circular ring shape, the inner circumferential surface of the clamping ring is provided with a clamping ring internal thread, and the clamping ring internal thread of the clamping ring is in threaded connection with the external thread of the base connecting circular ring;
the movable focusing wheel is in a circular ring shape, the movable focusing wheel is positioned on the periphery of the base connecting circular ring and is arranged at intervals with the base connecting circular ring, the ball bearing is embedded in a central hole of the movable focusing wheel, and the ball bearing is in interference fit with the central hole of the movable focusing wheel; the ball bearing is sleeved on the periphery of the base connecting circular ring, and the inner ring of the ball bearing is clamped and limited between the clamping ring and the base limiting retaining shoulder;
the movable focusing ring is located on the upper end side of the movable focusing wheel and connected with the upper end portion of the movable focusing wheel, a focusing ring light-transmitting through hole which completely penetrates through the middle position of the movable focusing ring from top to bottom and is aligned with a base light-transmitting through hole of the base connected with the machine shell is formed in the middle position of the movable focusing ring, and focusing ring internal threads are arranged on the inner wall of the focusing ring light-transmitting through hole.
The lower end part of the inner circumferential surface of the movable focusing wheel is provided with a focusing wheel limiting retaining shoulder protruding inwards, and the lower surface of the outer ring of the ball bearing is in contact with the focusing wheel limiting retaining shoulder.
The base connecting ring and the machine shell connecting base are of an integral structure.
The upper end part of the movable focusing wheel is in threaded connection with the edge part of the movable focusing ring through a locking screw.
And a groove is formed in the outer wall of the movable focusing wheel.
The utility model has the advantages that: the utility model relates to a focusing module with improved structure, which comprises a shell connecting base, a snap ring, a movable focusing wheel, a movable focusing ring and a ball bearing; a base light-transmitting through hole which completely penetrates through the upper part and the lower part is formed in the middle of the case connection base, a base connection circular ring which protrudes upwards and extends in a circular ring shape is arranged on the periphery of the case connection base on the base light-transmitting through hole, external threads are arranged at the upper end part of the outer circumferential surface of the base connection circular ring, and a base limiting retaining shoulder is arranged at the lower end part of the outer circumferential surface of the base connection circular ring; the clamping ring is in a circular ring shape, the inner circumferential surface of the clamping ring is provided with a clamping ring internal thread, and the clamping ring internal thread of the clamping ring is in threaded connection with the external thread of the base connecting circular ring; the movable focusing wheel is in a circular ring shape, the movable focusing wheel is positioned on the periphery of the base connecting circular ring and is arranged at intervals with the base connecting circular ring, the ball bearing is embedded in a central hole of the movable focusing wheel, and the ball bearing is in interference fit with the central hole of the movable focusing wheel; the ball bearing is sleeved on the periphery of the base connecting circular ring, and the inner ring of the ball bearing is clamped and limited between the clamping ring and the base limiting retaining shoulder; the movable focusing ring is located on the upper end side of the movable focusing wheel and connected with the upper end portion of the movable focusing wheel, a focusing ring light-transmitting through hole which completely penetrates through the middle position of the movable focusing ring from top to bottom and is aligned with a base light-transmitting through hole of the base connected with the machine shell is formed in the middle position of the movable focusing ring, and focusing ring internal threads are arranged on the inner wall of the focusing ring light-transmitting through hole. Through the structure design, the utility model has the advantages of structural design is novel, reliable and stable nature is good, focusing does not have virtual burnt.
Drawings
The invention will be further described with reference to the drawings, but the embodiments in the drawings do not constitute any limitation of the invention.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a schematic cross-sectional view of the present invention.
Fig. 1 to 3 include:
1-case connecting base 11-base light-transmitting through hole
12-base connecting ring 13-external thread
14-base limit shoulder 2-snap ring
21-snap ring internal thread 3-movable focusing wheel
31-groove 4-movable focusing ring
41-light-transmitting through hole 42 of focusing ring-internal thread of focusing ring
5-ball bearing 6-locking screw.
Detailed Description
The present invention will be described with reference to specific embodiments.
As shown in fig. 1 to 3, a focusing module with improved structure comprises a housing connection base 1, a snap ring 2, a movable focusing wheel 3, a movable focusing ring 4 and a ball bearing 5.
Furthermore, a base light-transmitting through hole 11 which completely penetrates from top to bottom is formed in the middle of the case connection base 1, a base connection ring 12 which protrudes upwards and extends in a circular ring shape is arranged on the periphery of the base light-transmitting through hole 11 of the case connection base 1, external threads 13 are arranged at the upper end of the outer circumferential surface of the base connection ring 12, and a base limit shoulder 14 is arranged at the lower end of the outer circumferential surface of the base connection ring 12. Preferably, the base connecting ring 12 and the case connecting base 1 are of an integral structure.
Further, the snap ring 2 has a circular ring shape, and the inner circumferential surface of the snap ring 2 is provided with a snap ring internal thread 21, and the snap ring internal thread 21 of the snap ring 2 is screwed with the external thread 13 of the base attachment ring 12.
The movable focusing wheel 3 is in a circular ring shape, the movable focusing wheel 3 is positioned on the periphery of the base connecting circular ring 12, the movable focusing wheel 3 and the base connecting circular ring 12 are arranged at intervals, the ball bearing 5 is embedded in a central hole of the movable focusing wheel 3, and the ball bearing 5 is in interference fit with the central hole of the movable focusing wheel 3; the ball bearing 5 is sleeved on the periphery of the base connecting circular ring 12, and the inner ring of the ball bearing 5 is clamped and limited between the clamping ring 2 and the base limiting blocking shoulder 14.
In addition, the movable focusing ring 4 is located at the upper end side of the movable focusing wheel 3, the movable focusing ring 4 is connected with the upper end portion of the movable focusing wheel 3, a focusing ring light-transmitting through hole 41 which completely penetrates through the movable focusing ring 4 from top to bottom and is aligned with the base light-transmitting through hole 11 of the case connection base 1 from top to bottom is formed in the middle position of the movable focusing ring 4, and focusing ring internal threads 42 are formed in the inner wall of the focusing ring light-transmitting through hole 41.
When inlaying ball bearing 5 dress in the centre bore of activity focusing wheel 3, for realizing ball bearing 5 location, the utility model discloses a following location structural design, it is concrete: the lower end part of the inner circumferential surface of the movable focusing wheel 3 is provided with a focusing wheel limiting retaining shoulder which protrudes inwards, and the lower surface of the outer ring of the ball bearing 5 is in contact with the focusing wheel limiting retaining shoulder. During installation, when the outer ring of the ball bearing 5 touches the focusing wheel limit stop shoulder, the ball bearing 5 is installed in place.
As a preferred embodiment, as shown in fig. 1 to 3, the upper end of the movable focusing wheel 3 is screwed with the edge of the movable focusing ring 4 through a locking screw 6; of course, above-mentioned spiro union assembly methods do not constitute the restriction of the utility model discloses, promptly the utility model discloses an upper end of activity focusing wheel 3 still can be through lock joint mode and activity focusing ring 4 be assembled between/be connected between.
As a preferred embodiment, as shown in fig. 1 and 2, the outer wall of the movable focusing wheel 3 is provided with a groove 31. In the process that the user manually rotates the movable focusing wheel 3, the structure of the groove 31 can effectively increase the friction force when the finger acts, and further increase the convenience when the movable focusing wheel 3 is manually rotated.
It should be further explained that, for the case connection base 1 of the present invention, it is locked and installed on the case of the camera lens; the casing connection base 1 can be fastened and mounted with the casing of the camera lens in a screwing or buckling mode. For a lens component of a camera lens, the lens component is arranged in a focusing ring light-transmitting through hole 41 of a movable focusing ring 4, and the lens component is in threaded connection with an adjusting ring internal thread on the inner wall of the focusing ring light-transmitting through hole 41 through an external thread; it should be noted that the lens assembly of the camera lens can only move up and down, and cannot rotate.
When utilizing the utility model discloses when carrying out manual focusing operation, user manual rotation activity focusing wheel 3, and activity focusing ring 4 is along with activity focusing wheel 3 synchronous revolution, because the internal thread of focusing ring printing opacity through-hole 41 inner wall and the external screw thread spiro union of lens subassembly, at the in-process of activity focusing ring 4 spin motion, the screw thread depth of rotation between activity focusing ring 4 and the lens subassembly can change, because the fixed unable removal of activity focusing ring 4Z axle direction, so will promote the lens subassembly and remove in Z axle direction, thereby realize camera lens focusing operation.
It should be further emphasized that the roller bearing is assembled in the central hole of the movable focusing wheel 3 in an interference fit manner, that is, the ball bearing 5 and the movable focusing wheel 3 do not move in the Z-axis direction; in addition, the ball bearing 5 is sleeved on the periphery of the base connecting circular ring 12, and the inner ring of the ball bearing 5 is clamped and limited through the base limiting retaining shoulder 14 and the clamping ring 2, namely the ball bearing 5 and the machine shell connecting base 1 cannot move in the Z-axis direction. During operation, under any conditions of motion, stillness, extrusion by external force or vibration and the like, the Z-axis direction of the ball bearing 5 can not be changed all the time, the movable focusing ring 4Z-axis has no displacement and is always kept at the initial position, and then the virtual focus phenomenon can be effectively avoided.
Also, in the process of rotating the movable focusing wheel 3, since the ball bearing 5 is installed between the movable focusing wheel 3 and the base connecting ring 12, the ball bearing 5 can effectively improve the smoothness of the rotation of the movable focusing wheel 3.
Synthesize the above-mentioned condition and know, through above-mentioned structural design, the utility model has the advantages of structural design is novel, reliable and stable good, the focusing does not have virtual burnt.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.

Claims (5)

1. The utility model provides a focus module of institutional advancement which characterized in that: comprises a shell connecting base (1), a clamping ring (2), a movable focusing wheel (3), a movable focusing ring (4) and a ball bearing (5);
a base light-transmitting through hole (11) which completely penetrates through the upper part and the lower part is formed in the middle of the machine shell connecting base (1), a base connecting circular ring (12) which protrudes upwards and extends in a circular ring shape is arranged on the periphery of the base light-transmitting through hole (11) of the machine shell connecting base (1), external threads (13) are arranged at the upper end part of the outer circumferential surface of the base connecting circular ring (12), and a base limiting retaining shoulder (14) is arranged at the lower end part of the outer circumferential surface of the base connecting circular ring (12);
the clamping ring (2) is in a circular ring shape, the inner circumferential surface of the clamping ring (2) is provided with a clamping ring internal thread (21), and the clamping ring internal thread (21) of the clamping ring (2) is in threaded connection with the external thread (13) of the base connecting circular ring (12);
the movable focusing wheel (3) is in a circular ring shape, the movable focusing wheel (3) is positioned on the periphery of the base connecting circular ring (12), the movable focusing wheel (3) and the base connecting circular ring (12) are arranged at intervals, the ball bearing (5) is embedded in a central hole of the movable focusing wheel (3), and the ball bearing (5) is in interference fit with the central hole of the movable focusing wheel (3); the ball bearing (5) is sleeved on the periphery of the base connecting circular ring (12), and the inner ring of the ball bearing (5) is clamped and limited between the clamping ring (2) and the base limiting blocking shoulder (14);
the movable focusing ring (4) is located on the upper end side of the movable focusing wheel (3), the movable focusing ring (4) is connected with the upper end portion of the movable focusing wheel (3), a focusing ring light-transmitting through hole (41) which completely penetrates through the movable focusing ring (4) from top to bottom and is vertically aligned with a base light-transmitting through hole (11) of the shell connecting base (1) is formed in the middle of the movable focusing ring (4), and focusing ring internal threads (42) are arranged on the inner wall of the focusing ring light-transmitting through hole (41).
2. The improved focusing module set as claimed in claim 1, wherein: the lower end part of the inner circumferential surface of the movable focusing wheel (3) is provided with a focusing wheel limiting and blocking shoulder protruding inwards, and the lower surface of the outer ring of the ball bearing (5) is in contact with the focusing wheel limiting and blocking shoulder.
3. The improved focusing module set as claimed in claim 1, wherein: the base connecting ring (12) and the machine shell connecting base (1) are of an integral structure.
4. The improved focusing module set as claimed in claim 1, wherein: the upper end part of the movable focusing wheel (3) is in threaded connection with the edge part of the movable focusing ring (4) through a locking screw (6).
5. The improved focusing module set as claimed in claim 1, wherein: the outer wall of the movable focusing wheel (3) is provided with a groove (31).
CN201922155941.3U 2019-12-05 2019-12-05 Focusing module with improved structure Active CN211293421U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922155941.3U CN211293421U (en) 2019-12-05 2019-12-05 Focusing module with improved structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922155941.3U CN211293421U (en) 2019-12-05 2019-12-05 Focusing module with improved structure

Publications (1)

Publication Number Publication Date
CN211293421U true CN211293421U (en) 2020-08-18

Family

ID=72036151

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922155941.3U Active CN211293421U (en) 2019-12-05 2019-12-05 Focusing module with improved structure

Country Status (1)

Country Link
CN (1) CN211293421U (en)

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