CN204028436U - A kind of infrared focus adjusting mechanism - Google Patents
A kind of infrared focus adjusting mechanism Download PDFInfo
- Publication number
- CN204028436U CN204028436U CN201420386069.8U CN201420386069U CN204028436U CN 204028436 U CN204028436 U CN 204028436U CN 201420386069 U CN201420386069 U CN 201420386069U CN 204028436 U CN204028436 U CN 204028436U
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- China
- Prior art keywords
- linear module
- precision linear
- focusing
- limit switch
- adjusting mechanism
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Abstract
The utility model discloses a kind of infrared focus adjusting mechanism, comprise precision linear module, precision linear module is provided with focusing picture frame, installation infrared focusing eyeglass in focusing picture frame, the surface of focusing eyeglass is aspheric surface; The rotating shaft of precision linear module connects follower gear, and follower gear engages with driving gear, and driving gear is connected with the output shaft of stepper motor, and stepper motor is arranged on motor cabinet; Precision linear module is provided with two stop means, stop means is positioned at focusing eyeglass both sides, stop means comprises limit switch fixture, limit switch fixture is fixed on precision linear module, limit switch fixture is provided with limit switch, limit switch connection control device, controller connects stepper motor.This infrared focus adjusting mechanism can use the automatic focusing of monolithic eyeglass realization to optical system.
Description
Technical field
The utility model belongs to a kind of optical facilities, is specifically related to a kind of infrared focus adjusting mechanism.
Background technology
Focusing is the distance changing camera lens photocentre plate plane on earth, to obtain the adjustment process of this object sharply defined image.We know the principle of lens imaging, picture (egative film of camera or photo-sensitive cell) on screen always has a position the most clearly, and this is the position of light collection, and numerous point constitutes a plane, here be just called focal plane, focusing namely changes bifocal front and back position.
The infrared focus adjusting mechanism of existing infrared optical system is generally formed by multiple lens combination, not only adds the weight of focus adjusting mechanism, and adds manufacturing cost; Meanwhile, automatic focusing can not be realized.
Utility model content
The purpose of this utility model is to provide a kind of infrared focus adjusting mechanism, can use the automatic focusing of monolithic eyeglass realization to optical system.
For achieving the above object, the technical scheme that an embodiment of the present utility model is taked is:
Comprise precision linear module, precision linear module is provided with focusing picture frame, installation infrared focusing eyeglass in focusing picture frame, the surface of focusing eyeglass is aspheric surface; The rotating shaft of precision linear module connects follower gear, and follower gear engages with driving gear, and driving gear is connected with the output shaft of stepper motor, and stepper motor is arranged on motor cabinet; Precision linear module is provided with two stop means, stop means is positioned at focusing eyeglass both sides, stop means comprises limit switch fixture, limit switch fixture is fixed on precision linear module, limit switch fixture is provided with limit switch, limit switch connection control device, controller connects stepper motor.
Preferably, focus between picture frame and described precision linear module and be provided with adjustment pad.
Preferably, precision linear module is ball module.
Preferably, between stepper motor output shaft and driving gear, precision linear module output shaft is all connected by pin with between follower gear, and fixes with holding screw.
The beneficial effect that this infrared focus adjusting mechanism produces is:
1, precision linear module is set, precision linear module is provided with focusing picture frame, installation infrared focusing eyeglass in focusing picture frame, the surface of focusing eyeglass is aspheric surface, precision linear module passes through driving stepper motor, drive on infrared focusing eyeglass online property module and move, realize the automatic focusing to optical system with monolithic eyeglass.
2, precision linear module arranges stop means, can prevent focusing eyeglass from exceeding focusing range.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of a kind of infrared focus adjusting mechanism of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the utility model specific embodiment and corresponding accompanying drawing, technical solutions of the utility model are clearly and completely described.
With reference to figure 1, Figure 1 shows that a kind of type single tube of planting of the present utility model executes the structural representation of an embodiment in source.In the present embodiment, infrared focus adjusting mechanism comprises precision linear module 1, precision linear module 1 is provided with focusing picture frame 2, installation infrared focusing eyeglass 3 in focusing picture frame 2, focusing eyeglass 3 is fixed in focusing picture frame 2 by trim ring 12, and the surface of focusing eyeglass 3 is aspheric surface; The rotating shaft of precision linear module 1 connects follower gear 9, and follower gear 9 engages with driving gear 6, and driving gear 6 is connected with the output shaft of stepper motor 4, and stepper motor 4 to be arranged on motor cabinet 5; Precision linear module 1 is provided with two stop means 9, stop means 9 is positioned at focusing eyeglass 3 both sides, stop means 9 comprises limit switch fixture 11, limit switch fixture 11 is fixed on precision linear module 1, limit switch fixture is provided with limit switch 10, limit switch 10 connection control device, controller connects stepper motor 4.
With reference to figure 1, in an embodiment of the present utility model, be provided with between focusing picture frame 2 and precision linear module 1 and adjust pad 13, for regulating the optical axis between focus adjusting mechanism with optical system consistent.
With reference to figure 1, in an embodiment of the present utility model, precision linear module is ball module, ensures the consistance of the optical axis between focus adjusting mechanism and optical system, improves the performance of whole optical system.
With reference to figure 1, in an embodiment of the present utility model, between stepper motor 4 output shaft and driving gear 6, precision linear module 1 output shaft is all connected by pin 7 with between follower gear 9, and fixes with holding screw 8, connects simple, safe and reliable.
Above-mentioned embodiment is used for explaining and the utility model is described; instead of the utility model is limited; in the protection domain of spirit of the present utility model and claim, any amendment make the utility model and change, all fall into protection domain of the present utility model.
Claims (4)
1. an infrared focus adjusting mechanism, is characterized in that: comprise precision linear module, and described precision linear module is provided with focusing picture frame, installation infrared focusing eyeglass in described focusing picture frame, and the surface of described focusing eyeglass is aspheric surface; The rotating shaft of described precision linear module connects follower gear, and described follower gear engages with driving gear, and described driving gear is connected with the output shaft of stepper motor, and described stepper motor is arranged on motor cabinet; Described precision linear module is provided with two stop means, described stop means is positioned at described focusing eyeglass both sides, described stop means comprises limit switch fixture, described limit switch fixture is fixed on described precision linear module, described limit switch fixture is provided with limit switch, described limit switch connection control device, described controller connects described stepper motor.
2. infrared focus adjusting mechanism according to claim 1, is characterized in that: be provided with adjustment pad between described focusing picture frame and described precision linear module.
3. infrared focus adjusting mechanism according to claim 1 and 2, is characterized in that: described precision linear module is ball module.
4. infrared focus adjusting mechanism according to claim 1 and 2, is characterized in that: between described stepper motor output shaft and described driving gear, and described precision linear module output shaft is all connected by pin with between described follower gear, and fixes with holding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386069.8U CN204028436U (en) | 2014-07-14 | 2014-07-14 | A kind of infrared focus adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420386069.8U CN204028436U (en) | 2014-07-14 | 2014-07-14 | A kind of infrared focus adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204028436U true CN204028436U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420386069.8U Expired - Fee Related CN204028436U (en) | 2014-07-14 | 2014-07-14 | A kind of infrared focus adjusting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204028436U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605388A (en) * | 2015-10-20 | 2016-05-25 | 西京学院 | Variable-focus aerial photography cradle head device |
| CN107037564A (en) * | 2017-05-16 | 2017-08-11 | 速波机器人无锡有限公司 | Camera focusing mechanism |
-
2014
- 2014-07-14 CN CN201420386069.8U patent/CN204028436U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105605388A (en) * | 2015-10-20 | 2016-05-25 | 西京学院 | Variable-focus aerial photography cradle head device |
| CN107037564A (en) * | 2017-05-16 | 2017-08-11 | 速波机器人无锡有限公司 | Camera focusing mechanism |
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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: 20141217 Termination date: 20150714 |
|
| EXPY | Termination of patent right or utility model |