CN2420657Y - zoom optical lens - Google Patents
zoom optical lens Download PDFInfo
- Publication number
- CN2420657Y CN2420657Y CN 00222705 CN00222705U CN2420657Y CN 2420657 Y CN2420657 Y CN 2420657Y CN 00222705 CN00222705 CN 00222705 CN 00222705 U CN00222705 U CN 00222705U CN 2420657 Y CN2420657 Y CN 2420657Y
- Authority
- CN
- China
- Prior art keywords
- zoom
- lens
- optical lens
- sensor
- focal length
- 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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- 230000003287 optical effect Effects 0.000 title claims abstract description 28
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 4
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses an optical lens zooms relates to an optical instrument zoom mechanism. The zoom optical lens solves the problem that the conventional zoom lens cannot display the focal length variation. The zoom optical lens comprises a zoom driving motor, a driving gear and a zoom cam for driving the lens to move, wherein a sensor is arranged on a transmission gear meshed with the zoom cam, and the zoom amount is converted into an electric signal and output to a display circuit for displaying, so that the zoom lens is remotely controlled and can be used in an environment where an operator is not close to or toxic and harmful.
Description
The utility model is a kind of novel focal optical lens, belongs to the optical lens structure of modification of optical instrument.
The fixing fixed circle of the shank portion of existing focal optical lens, moving-coil rotates with respect to fixed circle, and the eyeglass that drives camera lens inside moves axially, and focal length is changed.On the outer wall of moving-coil and fixed circle, be carved with different focal length numerical value and datum line respectively, during zoom, the operator estimates the focal length size of focal optical lens by the focal length numerical value scribed on the Direct observation moving-coil outer wall and the alignment case of datum line, rotates moving-coil then and carries out zoom.The defective of this zoom lens is that the focal length evaluated error of zoom lens is bigger, and needs to observe near camera lens.The optical lens Zoom structure of many in recent years cameras, video camera transform autozoom as, but still existence can not show the defective of the focal length size of focal optical lens more exactly, this zoom lens is used in the place and environment that the people can not be close, has brought difficulty just for zoom focal length and the far distance controlled autozoom of confirming a certain position.
The purpose of this utility model is to overcome the defective of prior art and a kind of focal length size that can show focal optical lens more exactly is provided, and the optical lens of energy autozoom.
The purpose of this utility model can realize by following technical measures: drive zoom cam, spacing collision block, limit switch and lens group by the zoom lens drive motor by gear wheel and constitute focal optical lens, engaged transmission gear on the zoom cam that the drive lens group moves, with sensor installation on the coaxial transmission shaft of driving gearshaft, the output of sensor is connected to focusing amount display circuit.
The purpose of this utility model can also realize by following technical measures: the output of sensor and microswitch is connected to the control circuit of drive motor.
The utility model has following advantage than prior art: sensor installation on the zoom mechanism of focal optical lens, the focal length variations amount is converted to electric signal output, show by display circuit, can allow the operator obtain accurately and the focal length variations error of easily observing indication, carry out zoom in conjunction with adopting drive motor to drive, can realize the far distance controlled of focal optical lens autozoom.
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the main body cut-away view of the focal optical lens of the utility model embodiment one.
Fig. 2 is that the A of Fig. 1 is to cut-open view.
Fig. 3 is the focal length display circuit schematic diagram of the focal optical lens of the utility model embodiment one.
Fig. 4 is the display circuit schematic diagram of the focal optical lens of embodiment two of the present utility model.
As shown in Figure 1, the drive motor 1 of the focal optical lens of the utility model embodiment one drives driving shaft 2 and rotates, and driven wheel 3 links to each other with driving shaft 2, and rotates thereupon.Driven wheel 3 and gear wheel 4 engagements.Gear wheel 4 is bound up with zoom gear 5.Focal optical lens group 14 is installed on the zoom cam 5, and drives lens group 14 and move, lens focus is changed.Transmission gear 6 is with 5 engagements of zoom cam and rotate thereupon, with sensor installation 9 on the transmission shaft 8 of transmission gear 6 coaxial rotation.The electric signal of sensor 9 outputs and the proportional variation of camera lens zoom amount.The output of sensor 9 is connected to the control circuit 19 of focusing amount display circuit 13 and drive motor 1.
As shown in Figure 2, zoom cam 5 connects the spacing collision block 7 of zoom, and zoom lens shank portion is separately installed with position limit switch 10 corresponding to two extreme position of zoom.When spacing collision block 7 turns to the zoom extreme position with zoom cam 5, spacing collision block 7 collision limit switches 10, limit switch 10 produces a switching signal, sends into the control Driver Circuit 19 of drive motor 1, controlling and driving motor 1 stops operating, and can only backward rotation.
Figure 3 shows that the focal length display circuit schematic diagram of the focal optical lens of the utility model embodiment one.An output line of sensor 9 is connected to the tie point of constant pressure source 15 and voltage table 11, the other end of constant pressure source 15 resistance 12 that is connected in series.Resistance 12 is connected to another output line of sensor 9.The resistance value of sensor 9 changes along with lens focus and changes, and the voltage on the sensor 9 also utmost point should change, and the voltage table 11 in parallel with sensor 9 shows the numerical value that changes with respect to focal length value immediately.This display circuit can be placed at a distance of zoom lens position far away.
Figure 4 shows that the focal length display circuit schematic diagram of the focal optical lens of the utility model embodiment two.The focal optical lens physical construction of the utility model embodiment two is identical with embodiment one.The output of sensor 9 is connected to signal processing circuit 16, after the output of signal processing circuit 16 is sent into amplifying circuit 17 and amplified, delivers to the control circuit 19 of digital display circuit 18 and drive motor 1.
The output line of sensor 9 can be connected to as required apart from being separated by display circuit far away 13 and control circuit 19, realize that zoom lens focal length variations remote digital shows and automatic focusing.
Claims (2)
1. focal optical lens, driving zoom cam (5), spacing collision block (7), limit switch (10) and lens group (14) by zoom lens drive motor (1) by gear wheel (4) forms, it is characterized in that: drive the mobile zoom cam (5) of lens group (14) and go up engaged transmission gear (6), go up sensor installation (9) with the transmission shaft (8) that transmission gear (6) is coaxial, the output of sensor (9) is connected to focusing amount display circuit (13).
2. focal optical lens according to claim 1 is characterized in that: the output of sensor (9) and limit switch (10) is connected to the control circuit (19) of drive motor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222705 CN2420657Y (en) | 2000-04-05 | 2000-04-05 | zoom optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00222705 CN2420657Y (en) | 2000-04-05 | 2000-04-05 | zoom optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2420657Y true CN2420657Y (en) | 2001-02-21 |
Family
ID=33587384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00222705 Expired - Fee Related CN2420657Y (en) | 2000-04-05 | 2000-04-05 | zoom optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2420657Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474995A (en) * | 2016-01-11 | 2018-08-31 | Lg伊诺特有限公司 | Lens driver, camera model and Optical devices |
-
2000
- 2000-04-05 CN CN 00222705 patent/CN2420657Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108474995A (en) * | 2016-01-11 | 2018-08-31 | Lg伊诺特有限公司 | Lens driver, camera model and Optical devices |
| CN108474995B (en) * | 2016-01-11 | 2021-06-08 | Lg伊诺特有限公司 | Lens driving device, camera module, and optical device |
| US11079567B2 (en) | 2016-01-11 | 2021-08-03 | Lg Innotek Co., Ltd. | Lens driving device, camera module, and optical device |
| CN113341525A (en) * | 2016-01-11 | 2021-09-03 | Lg伊诺特有限公司 | Lens driving device, camera module, and optical device |
| CN113341525B (en) * | 2016-01-11 | 2023-10-27 | Lg伊诺特有限公司 | Lens driving device, camera module and optical device |
| US11815734B2 (en) | 2016-01-11 | 2023-11-14 | Lg Innotek Co., Ltd. | Lens driving device, camera module, and optical device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |