CN102486566A

CN102486566A - Automatic focusing module

Info

Publication number: CN102486566A
Application number: CN2010105743854A
Authority: CN
Inventors: 黄澄仪; 曾德生; 许文鸿
Original assignee: Largan Precision Co Ltd
Current assignee: Largan Precision Co Ltd
Priority date: 2010-12-06
Filing date: 2010-12-06
Publication date: 2012-06-06
Anticipated expiration: 2030-12-06
Also published as: CN102486566B

Abstract

The invention discloses an automatic focusing module at least comprising an installation pedestal, an electronically controlled zooming member, and at least one power transmission member. The installation pedestal at least is accommodated with a lens as well as the electronically controlled zooming member is assembled at one end of the installation pedestal. The electronically controlled zooming member and the lens are on a same optical axis. The power transmission member is buried in the installation pedestal as well as is respectively conducted with the electronically controlled zooming member and an external power supply. The electronically controlled zooming member obtains power supply by the power transmission member; and the curved surface of the electronically controlled zooming member is modulated by changing the power supply, so that an objective of automatic focusing is achieved. According to the automatic focusing module in the embodiment of the invention, the module part number is reduced so as to reduce costs; and because injection molding is realized after the power transmission part is buried in the focusing installation pedestal, the manufacturing technology of the module is easy. And moreover, not the whole power transmission member is exposed, so that it can be avoided that the power transmission member is contacted and conducted with other parts.

Description

Automatic Focusing module

Technical field

The present invention relates to a kind of lens construction, particularly about a kind of automatic Focusing module.

Background technology

Along with digital development of science and technology is rapid, the frivolous day by day dexterity of electronic product requires simplifying with reduced volume and be easy to carry for member, and is simultaneously cumulative for the product demand of tool zoom function, impels the automatic focusing product that produces on the market with motor driven.The following automatic Focusing module that is disclosed, it is installed on outer side surface and upper surface plates a metal conduction layer, uses to connect electric control zooming spare and sensor:

Figure 1A is the vertical view of existing automatic Focusing module, and Figure 1B is the diagrammatic cross-section of the A-A along the line of Figure 1A.Fig. 2 A is the vertical view behind the member partly that removes of existing automatic Focusing module, and Fig. 2 B is the B-B diagrammatic cross-section along the line of Fig. 2 A.One existing automatic Focusing module 10 comprises a zoom and takes up seat 11, one an electric control zooming spare 12, and focus and take up seat 13, one camera lens 14 and a sensor 15.This zoom takes up seat 11 and comprises an electric control zooming spare storage tank 16 and be provided with a light hole, and this electric control zooming spare storage tank 16 is organized mutually with this electric control zooming spare 12 and established, and wherein this electric control zooming spare 12 can be controlled its curved transition and then reach the focusing demand through power supply.This focuses and takes up seat 13 and be provided with an internal screw thread 17 and organize mutually with this camera lens 14 and establish; And this focuses and takes up seat 13 and plate a metal conduction layer 18 at outer side surface and upper surface, through this metal conduction layer 18 this electric control zooming spare of conducting 12 and this sensor 15.Wherein this sensor 15 is provided with a substrate 19 and a sensing element 20, and this substrate 19 is provided with a power end, driving this electric control zooming spare 12, and then reaches focus function through power supply size that this power end provided.Yet above-mentioned existing automatic Focusing module 10 but has disadvantage: 1. metal conduction layer conduction is unstable.2. the coating of metal conduction layer is made and is difficult for.3. the exposed metal conductting layer is easy to oxidation, and is prone to contact conducting with other part or friction is peeled off.So prior art still has disappearance and haves much room for improvement.

Summary of the invention

The object of the invention is for cutting down finished cost and increasing economic efficiency.

The automatic Focusing module that achieves the above object comprises at least: one takes up seat, an electric control zooming spare and a power supply conducting piece; Wherein, This takes up seat and is equipped with an eyeglass at least, and Yu Yiduan group establishes this electric control zooming spare, and this electric control zooming spare is positioned on the same optical axis with this eyeglass; And this power supply conducting piece imbeds this and takes up in the seat, and this power supply conducting piece is conducted with this an electric control zooming spare and an external power source respectively.

The automatic Focusing module of the embodiment of the invention can reduce the module part number reducing cost, and because this power turn-on spare is imbedded this focuses and take up a back ejection formation, so manufacturing process is easy.And since this power turn-on spare be not whole section be exposed to outside, and then can avoid contacting conducting with other part.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute qualification of the present invention.In the accompanying drawings:

Figure 1A is the vertical view of existing automatic Focusing module;

Figure 1B is the A-A diagrammatic cross-section along the line of Figure 1A;

Fig. 2 A has the vertical view after automatic Focusing module removes the part member now for Figure 1A;

Fig. 2 B is the B-B diagrammatic cross-section along the line of Fig. 2 A;

Fig. 3 A is the vertical view of automatic Focusing module first embodiment of the present invention;

Fig. 3 B is the C-C diagrammatic cross-section along the line of Fig. 3 A;

Fig. 4 A is the vertical view behind the member partly that removes of automatic Focusing module first embodiment of the present invention;

Fig. 4 B is the D-D diagrammatic cross-section along the line of Fig. 4 A;

Fig. 5 A is the vertical view of sensor of the present invention;

Fig. 5 B is the side view of sensor of the present invention;

Fig. 6 A is the vertical view of automatic Focusing module second embodiment of the present invention;

Fig. 6 B is the E-E diagrammatic cross-section along the line of Fig. 6 A;

Fig. 7 A is the vertical view of automatic Focusing module the 3rd embodiment of the present invention;

Fig. 7 B is the F-F diagrammatic cross-section along the line of Fig. 7 A.

Drawing reference numeral:

100,200,300 automatic Focusing modules

110 zooms take up seat

120 electric control zooming spares

130 power supply conducting pieces

131 electrode tips

140 focus and take up seat

150 camera lenses

160 sensors

161 printed circuit board (PCB)s

162 power supplys are supplied with section

163 sensing elements

170 eyeglasses

180 conducting resinls

Embodiment

For making the object of the invention, technical scheme and advantage clearer, the embodiment of the invention is explained further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.

Automatic Focusing module of the present invention will cooperate appended graphic the detailed description through following specific embodiment.

See also Fig. 3 A and Fig. 3 B, show schematic top plan view and the C-C diagrammatic cross-section along the line of Fig. 3 A of first embodiment of the automatic Focusing module of the present invention respectively.In this specific embodiment; The automatic Focusing module 100 of the present invention comprises at least that a zoom takes up seat 110, one electric control zooming spare 120, at least one power supply conducting piece 130, focuses and takes up seat 140, one camera lens 150 and a sensor 160, and wherein this camera lens 150 comprises an eyeglass 170 at least.

This zoom takes up the accommodation space that seat 110 has a penetration state.This electric control zooming spare 120 for example includes an optics of liquids camera lens; Preferably, this electric control zooming spare 120 can be flat, and this electric control zooming spare 120 and this zoom take up seat 110 and be mounted on this relatively and focus and take up seat 140 tops.This power supply conducting piece 130 is a conductive material, and this power supply conducting piece 130 takes up seat 110 with this zoom and is oppositely arranged, and is connected with 120 contacts of this electric control zooming spare.This camera lens 150 moves on same optical axis with this electric control zooming spare 120 relatively, and this camera lens 150 focuses with this and takes up 140 bolt.This sensor 160 is provided with a printed circuit board (PCB) (PCB) 161, and this printed circuit board (PCB) 161 is provided with a plurality of power supplys at least one side and supplies with section 162 (seeing also Fig. 5 A), and wherein this sensor 160 focuses with this and takes up seat 140 and organize relatively and establish.This zoom take up seat 110, this focus take up seat 140 and this sensor 160 relatively group establish, and this focuses and takes up seat 140 and be disposed at this zoom and take up between seat 110 and this sensor 160.

This power supply conducting piece 130 is for impact briquetting and imbed this and focus and take up in the seat 140, and this power supply conducting piece 130 has the electrode tip 131 that extends towards horizontal direction more than at least two.Aforementioned two electrode tips 131 are formed at the top and the bottom of this power supply conducting piece 130 respectively, are conducted to supply with section 162 with these power supplys of this electric control zooming spare 120 and this printed circuit board (PCB) 161 respectively.Preferably, this electrode tip 131 of this power supply conducting piece 130 can be through a conducting resinl 180 with this power supply supply section 162 of this printed circuit board (PCB) 161 and is linked each other.In addition, this electrode tip 131 of this power supply conducting piece 130 also can pass through a conducting resinl (scheming not shown) binding and mutual conduction with this electric control zooming spare 120.

Please continue to consult Fig. 3 B; When a power supply was supplied with this power supply give this sensor 160 and supplied with section 162, this power supply was supplied with this electrode tip 131 of section 162 conduction power supplys through these power supply conducting pieces 130, and this electric control zooming spare 120 so that electric current is flowed through; Utilize the size of power supply supply and then let the focal length of this electric control zooming spare 120 change; And then reach the effectiveness of autozoom, and not only reduce the complicacy of member and reduce optical mirror slip quantity, reduce cost greatly.

In sum, this zoom of the present invention takes up seat 110 and focuses with this and take up 140 and utilize this electric control zooming spare 120, this power supply conducting piece 130 and this sensor 160 to link each other; Wherein, this electric control zooming spare 120 size variation of utilizing power supply with change curved surface adjustment focal position so that reach automatic focusing function.

Fig. 4 A takes up the vertical view after seat 110 and this electric control zooming spare 120 are removed for this zoom of first embodiment of the automatic Focusing module 100 of the present invention, and Fig. 4 B is the D-D diagrammatic cross-section along the line of Fig. 4 A.Fig. 5 A is the vertical view of sensor 160 of the present invention, and Fig. 5 B is the side view of sensor 160 of the present invention.This sensor 160 is provided with this printed circuit board (PCB) 161, and this printed circuit board (PCB) 161 is provided with a sensing element 163, and this printed circuit board (PCB) 161 is provided with a plurality of this power supplys in side and supplies with section 162, and its element connection relationship such as preamble each other is said.

Fig. 6 A is the vertical view of second embodiment of the automatic Focusing module of the present invention, and Fig. 6 B is the E-E diagrammatic cross-section along the line of Fig. 6 A.In a second embodiment, the automatic Focusing module 200 of the present invention comprises an electric control zooming spare 120, at least one power supply conducting piece 130, focuses and takes up seat 140, one camera lens 150 and a sensor 160.

Second embodiment shown in Fig. 6 B is with respect to the difference of first embodiment shown in Fig. 3 B: the element of Fig. 6 B has been formed few " this zoom takes up seat 110 ", this electric control zooming spare 120 directly be mounted on this focus take up seat 140 epimeres partly in.The connection relationship of each element of second embodiment is identical with first embodiment with combination.

Fig. 7 A is the vertical view of the 3rd embodiment of the automatic Focusing module of the present invention, and Fig. 7 B is the F-F diagrammatic cross-section along the line of Fig. 7 A.In the 3rd embodiment, the automatic Focusing module 300 of the present invention comprises an electric control zooming spare 120, a power supply conducting piece 130, focuses and takes up seat 140 and one sensor 160.

The 3rd embodiment shown in Fig. 7 B is with respect to the difference of first embodiment shown in Fig. 3 B: the element of Fig. 7 B is formed and has been lacked " this zoom takes up seat 110 " and " this camera lens 150 "; Wherein this electric control zooming spare 120 directly be mounted on this focus take up seat 140 epimeres partly in, and at least one eyeglass 170 is mounted on this and focuses and take up in the seat 140.Each element connection relationship each other of the 3rd embodiment is identical with first embodiment with combination.

No matter be the first embodiment of the present invention, second embodiment or the 3rd embodiment, its emphasis all is: the size variation of the power supply of this electric control zooming spare utilization supply is to change its curved surface, to adjust the focal position and then to reach automatic focusing.The present invention not only reduces complicacy and then the reduced volume of member and improves the utilization factor of accommodation space, and reduces member the convenience of assembling is provided, and then cuts down finished cost and enhance productivity.

The invention has the advantages that:

1. because this power turn-on spare is imbedded this focuses and take up a back ejection formation, so manufacturing process is easy.

This power turn-on spare be not whole section be exposed to outside, and then can avoid contacting conducting with other part.

3. can reduce the module part number to reduce cost.

After specifying specific embodiment of the present invention, those skilled in the art can clearly understand, and can carry out various variations and change not breaking away under claim scope and the spirit, and the present invention also are not subject to the embodiment of the embodiment of instructions.

Claims

1. automatic Focusing module is characterized in that it comprises at least: one takes up seat, an electric control zooming spare and at least one power supply conducting piece; Wherein, Saidly take up a ccontaining at least eyeglass in the seat; And in said take up the seat one an end group establish said electric control zooming spare; Said electric control zooming spare is positioned on the same optical axis with said eyeglass, and said power supply conducting piece is adopted to imbed to penetrate in said and taken up in the seat, and said power supply conducting piece is conducted with a said electric control zooming spare and an external power source respectively.

2. automatic Focusing module as claimed in claim 1 is characterized in that, said electric control zooming element is flat.

3. automatic Focusing module as claimed in claim 1; It is characterized in that; More comprise a sensor and be mounted on the said other end that takes up seat; Said sensor includes a substrate, and said substrate is provided with at least one power supply at least one side and supplies with section, and said power supply is supplied with section and said power supply conducting piece mutual conduction.

4. automatic Focusing module as claimed in claim 1 is characterized in that, the electrode tip that said power supply conducting piece has more than two at least is exposed outside, and the said electrode tip of said power supply conducting piece is conducted with said electric control zooming spare and said external power source respectively.

5. automatic Focusing module as claimed in claim 4 is characterized in that, said power supply conducting piece is impact briquetting.

6. automatic Focusing module as claimed in claim 4 is characterized in that, the said electrode tip of said power supply conducting piece and said electric control zooming spare can link and mutual conduction through a conducting resinl.

7. automatic Focusing module as claimed in claim 4 is characterized in that, the said power supply of the said electrode tip of said power supply conducting piece and said substrate is supplied with section and can be linked and mutual conduction through a conducting resinl.