CN202759528U - Camera with self-equipped lighting source - Google Patents
Camera with self-equipped lighting source Download PDFInfo
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- CN202759528U CN202759528U CN201220436371.0U CN201220436371U CN202759528U CN 202759528 U CN202759528 U CN 202759528U CN 201220436371 U CN201220436371 U CN 201220436371U CN 202759528 U CN202759528 U CN 202759528U
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- light source
- camera
- brightness
- control circuit
- photo
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Abstract
The utility model relates to the mining illumination shooting field, particularly to a camera with a self-equipped lighting source. The camera of the utility model comprises a light source and a photosensitive element which are arranged upon the camera, wherein the photosensitive element is connected with a control circuit controlling the brightness of the light source; both the light source and the control circuit are connected with the power supply of the camera; the photosensitive element transmits the brightness signal in the mine to the control circuit; and the control circuit adjusts the brightness of the light source according to the signal, thereby providing proper lighting brightness for the camera and improving the shooting quality. The camera can automatically adjust the light source according to the on-site brightness and saves the trouble of specially providing a lighting device, thereby reducing the device cost and facilitating the carrying.
Description
Technical field
The utility model relates to coalmine illumination shooting field, particularly self illumination light source camera.
Background technology
Usually the mine need of work carries video camera for video acquisition under the mine, video monitoring under the mine belongs to carry out video acquisition under dark surrounds, because light is relatively poor in the mine, can not satisfy common camera to the requirement of shooting brightness, must increase secondary light source to improve the brightness in the mine, normally give explosion-proof illuminating lamp of every independent adapted of video camera, so just improved equipment cost, and be not easy to carry.Also have at present and adopt infrared image pickup device to carry out the interior video acquisition of mine, but the infrared image pickup device price is high, and image effect is undesirable, can only see that the rib of pickup image is wide, the non-constant of video effect.
Summary of the invention
The purpose of this utility model provides a kind of saving cost, and can automatically adjust according to site environment the self illumination light source camera of brightness.
For achieving the above object, the utility model has adopted following technical scheme: a kind of self illumination light source camera, comprise the light source and the photo-sensitive cell that are arranged on the video camera, photo-sensitive cell is connected with the control circuit that is used for the control light-source brightness, and described light source, control circuit all link to each other with the power supply of video camera.
Owing to adopting above technical scheme, photo-sensitive cell is passed to control circuit with the luminance signal in the mine, control circuit is regulated the brightness of light source according to this signal, for video camera provides moderate brightness of illumination, thereby the raising pickup quality, this device not only can be according to the automatic brightness adjustment light source at scene, and need not the optional equipment lighting device, reduced equipment cost, be easy to carry.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of self illumination light source camera, comprise the light source 10 and the photo-sensitive cell 20 that are arranged on the video camera, photo-sensitive cell 20 is connected with the control circuit 30 that is used for 10 brightness of control light source, and described light source 10, control circuit 30 all link to each other with camera power supply 40.Photo-sensitive cell 20 is passed to control circuit 30 with the luminance signal in the mine that collects, and control circuit 30 is regulated the brightness of light source 10 according to this signal, that is to say that the brightness that light source 10 provides under the different environment is different.In the utility model, if more the irradiation brightness that provides of half-light source 10 is larger for the light in the mine, 10 need of light source replenished a small amount of brightness when the light in the mine was sufficient, avoided the brightness of imaging environment to cross by force or excessively, remain video camera moderate brightness of illumination is provided, guarantee the definition of image, thereby the raising pickup quality, this device not only can be according to the automatic brightness adjustment light source at scene, and need not the optional equipment lighting device, reduced equipment cost, and be easy to carry.
Described light source 10 places the LED white light in the video camera explosion-proof chamber to consist of by a plurality of, the small volume of LED white light is easily mounted in the explosion-proof chamber of video camera, avoid increasing the volume of video camera, LED white light energy consumption is lower, can effectively prolong the stand-by time of video camera, be suitable for long shooting.
Described photo-sensitive cell 20 is for being arranged on the photo resistance of camera lens side, and this element is comparatively common, and cost is low.
Described control circuit 30 drives chip for LED.LED drives chip has an output current to adjust pin, and when its current potential changed, the output current that led chip drives is linear change thereupon also, potential rise, and output current increases.Photo-sensitive cell 20 is that photo resistance is connected between LED driving chip current adjustment pin and the ground, when ambient light was dimmed, the photo resistance resistance increased, and caused that LED drives chip current and adjusts the pin potential rise, drive current increases, thereby the luminosity of light source 10 is increased; Otherwise when ambient light brightened, the photo resistance resistance reduced, cause that LED drives chip current and adjusts the reduction of pin current potential, drive current reduces, thereby the luminosity of light source 10 is diminished, realization is satisfied the brightness requirement of video camera according to the different brightness of automatically regulating light source 10 of ambient light.
Claims (4)
1. self illumination light source camera, it is characterized in that: comprise the light source (10) and the photo-sensitive cell (20) that are arranged on the video camera, photo-sensitive cell (20) is connected with the control circuit (30) that is used for the brightness of control light source (10), and described light source (10), control circuit (30) all link to each other with camera power supply (40).
2. self illumination light source camera according to claim 1, it is characterized in that: described light source (10) places the LED white light in the video camera explosion-proof chamber to consist of by a plurality of.
3. self illumination light source camera according to claim 1 is characterized in that: described photo-sensitive cell (20) is for being arranged on the photo resistance of camera lens side.
4. self illumination light source camera according to claim 1 and 2 is characterized in that: described control circuit (30) is that LED drives chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220436371.0U CN202759528U (en) | 2012-08-30 | 2012-08-30 | Camera with self-equipped lighting source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220436371.0U CN202759528U (en) | 2012-08-30 | 2012-08-30 | Camera with self-equipped lighting source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202759528U true CN202759528U (en) | 2013-02-27 |
Family
ID=47738686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220436371.0U Expired - Fee Related CN202759528U (en) | 2012-08-30 | 2012-08-30 | Camera with self-equipped lighting source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202759528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843516A (en) * | 2012-08-30 | 2012-12-26 | 珠海拓普智能电气股份有限公司 | Video camera with lighting source |
| CN103561204A (en) * | 2013-11-13 | 2014-02-05 | 上海创力集团股份有限公司 | Mining flame-proof type photographic device |
-
2012
- 2012-08-30 CN CN201220436371.0U patent/CN202759528U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843516A (en) * | 2012-08-30 | 2012-12-26 | 珠海拓普智能电气股份有限公司 | Video camera with lighting source |
| CN103561204A (en) * | 2013-11-13 | 2014-02-05 | 上海创力集团股份有限公司 | Mining flame-proof type photographic device |
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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: 20130227 Termination date: 20190830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |