CN202710826U - Optical fingerprint head focusing apparatus - Google Patents
Optical fingerprint head focusing apparatus Download PDFInfo
- Publication number
- CN202710826U CN202710826U CN2012202646698U CN201220264669U CN202710826U CN 202710826 U CN202710826 U CN 202710826U CN 2012202646698 U CN2012202646698 U CN 2012202646698U CN 201220264669 U CN201220264669 U CN 201220264669U CN 202710826 U CN202710826 U CN 202710826U
- Authority
- CN
- China
- Prior art keywords
- wheel
- eccentrically
- barrel assembly
- focus
- circular hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1312—Sensors therefor direct reading, e.g. contactless acquisition
Landscapes
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Lens Barrels (AREA)
Abstract
Provided is an optical fingerprint head focusing apparatus, comprising a lens barrel assembly 1, an eccentric focusing wheel 2, and a casing seat 3, wherein the eccentric focusing wheel 2 comprises a rotating wheel 21 and a partial wheel 22; the rotating wheel 21 and the partial wheel 22 do not share the same shaft; the lens barrel assembly 1 is provided with a square-shaped groove 11; the partial wheel 22 of the eccentric focusing wheel 2 is embedded in the square-shaped groove 11; the radial direction of the partial wheel 22 cooperates with the square-shaped groove 11; the casing seat 3 is provided with a circular hole 31; and the rotating wheel 21 of the eccentric focusing wheel 2 cooperates with the circular hole 31. The rotating wheel 21 of the eccentric focusing wheel 2 rotates inside the circular hole 31 of the casing seat 3, thereby driving the lens barrel assembly 1 to move up and down and realizing the focusing function of the lens barrel assembly.
Description
Technical field
The utility model belongs to optical finger print head product, particularly a kind of optical finger print head focus control.
Background technology
Existing optical finger print head focus control is generally screw-type and dial type, and screw-type focus control cost is high; Dial type regulating device inconvenient operation, trim locations is wayward, can't satisfy accuracy requirement.Optical finger print head focus control of the present utility model has overcome above-mentioned shortcoming, and cost is low, and precision is high.
The utility model content
The purpose of this utility model provides a kind of novel optical finger print head focus control, and simple in structure, easy to operate, precision is high, and production cost is low.
In order to achieve the above object, the technical solution of the utility model is as follows:
A kind of optical finger print head focus control comprises barrel assembly 1, Eccentrically focus wheel 2, shell block 3; Eccentrically focus wheel 2 comprises runner 21 and wheel 22 partially, partially take turns 22 with runner 21 disalignments; Barrel assembly 1 is provided with square groove 11, and the inclined to one side wheel 22 of Eccentrically focus wheel 2 embeds in the square grooves 11, partially takes turns 22 radially match with square groove 11; Shell block 3 is provided with circular hole 31, and the runner 21 of Eccentrically focus wheel 2 matches with circular hole 31.
Owing to having adopted said structure, can take turns 2 runner 21 in the circular hole 31 interior rotations of shell block 3 by Eccentrically focus, drive barrel assembly 1 and move up and down, realize the focusing function of barrel assembly 1.
Description of drawings
Fig. 1 is the utility model assembling schematic diagram;
Fig. 2 is the A-A profile of Fig. 1;
Fig. 3 is the B-B profile of Fig. 1;
Fig. 4 is the utility model original state enlarged diagram;
Fig. 5 is the utility model raised state enlarged diagram;
Fig. 6 is shifting state enlarged diagram under the utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail:
A kind of optical finger print head focus control comprises barrel assembly 1, Eccentrically focus wheel 2, shell block 3; Such as Fig. 1, Fig. 2, shown in Figure 3, Eccentrically focus wheel 2 comprises runner 21 and wheel 22 partially, partially take turns 22 with runner 21 disalignments; Barrel assembly 1 is provided with square groove 11, and the inclined to one side wheel 22 of Eccentrically focus wheel 2 embeds in the square grooves 11, partially takes turns 22 radially match with square groove 11; Shell block 3 is provided with circular hole 31, and the runner 21 of Eccentrically focus wheel 2 matches with circular hole 31.
As shown in Figure 4, when clockwise rotating Eccentrically focus and take turns 2, because the runner 21 of Eccentrically focus wheel 2 matches with the circular hole 31 of shell block 3, the runner 21 of Eccentrically focus wheel 2 turns clockwise in the circular hole 31 of shell block 3, move on gradually in inclined to one side wheel 22 rotation processes of Eccentrically focus wheel 2, because the inclined to one side wheel 22 of Eccentrically focus wheel 2 matches with the square groove 11 of barrel assembly 1, partially take turns 22 and order about barrel assembly 1 relative shell block 3 and move up, as shown in Figure 5.
As shown in Figure 5, when counterclockwise or when continuing to clockwise rotate Eccentrically focus and taking turns 2, the runner 21 of Eccentrically focus wheel 2 is interior counterclockwise or turn clockwise at the circular hole 31 of shell block 3, move down gradually in inclined to one side wheel 22 rotation processes of Eccentrically focus wheel 2, move down thereby order about barrel assembly 1 relative shell block 3, as shown in Figure 6.
The rotation of Eccentrically focus wheel 2 can be according to the position needs free adjustment of barrel assembly 1.By moving up and down of barrel assembly 1, realize the focusing function of barrel assembly 1.
Claims (1)
1. an optical finger print head focus control is characterized in that: comprise barrel assembly (1), Eccentrically focus wheel (2), shell block (3); Described Eccentrically focus wheel (2) comprises runner (21) and partially takes turns (22), partially wheel (22) and runner (21) disalignment; Barrel assembly (1) is provided with square groove (11), and the inclined to one side wheel (22) of Eccentrically focus wheel (2) embeds in the square groove (11), and wheel (22) radially matches with square groove (11) partially; Shell block (3) is provided with circular hole (31), and the runner (21) of Eccentrically focus wheel (2) matches with circular hole (31).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202646698U CN202710826U (en) | 2012-05-17 | 2012-05-17 | Optical fingerprint head focusing apparatus |
| PCT/CN2013/073412 WO2013170670A1 (en) | 2012-05-17 | 2013-03-29 | Focusing device of optical fingerprinting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202646698U CN202710826U (en) | 2012-05-17 | 2012-05-17 | Optical fingerprint head focusing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202710826U true CN202710826U (en) | 2013-01-30 |
Family
ID=47591112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202646698U Expired - Fee Related CN202710826U (en) | 2012-05-17 | 2012-05-17 | Optical fingerprint head focusing apparatus |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN202710826U (en) |
| WO (1) | WO2013170670A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749695A (en) * | 2012-05-17 | 2012-10-24 | 闵瑜 | Focusing device of optical fingerprint head |
| WO2013170670A1 (en) * | 2012-05-17 | 2013-11-21 | Min Yu | Focusing device of optical fingerprinting head |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2539974Y (en) * | 2002-04-22 | 2003-03-12 | 庄海 | Endoscopic camera lens assembly |
| EP2001223B1 (en) * | 2007-06-04 | 2016-09-21 | fm marketing gmbh | Multi-media configuration |
| CN201436630U (en) * | 2009-06-30 | 2010-04-07 | 上海威士迪电子科技有限公司 | Fingerprint acquisition apparatus |
| CN201654805U (en) * | 2010-03-25 | 2010-11-24 | 杭州金指码实业有限公司 | Optical fingerprint head lens barrel focusing device |
| CN102749695A (en) * | 2012-05-17 | 2012-10-24 | 闵瑜 | Focusing device of optical fingerprint head |
| CN202710826U (en) * | 2012-05-17 | 2013-01-30 | 闵瑜 | Optical fingerprint head focusing apparatus |
-
2012
- 2012-05-17 CN CN2012202646698U patent/CN202710826U/en not_active Expired - Fee Related
-
2013
- 2013-03-29 WO PCT/CN2013/073412 patent/WO2013170670A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102749695A (en) * | 2012-05-17 | 2012-10-24 | 闵瑜 | Focusing device of optical fingerprint head |
| WO2013170670A1 (en) * | 2012-05-17 | 2013-11-21 | Min Yu | Focusing device of optical fingerprinting head |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013170670A1 (en) | 2013-11-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20210517 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |