CN214627426U - System capable of adjusting brightness of LED lamp - Google Patents
System capable of adjusting brightness of LED lamp Download PDFInfo
- Publication number
- CN214627426U CN214627426U CN202120267474.8U CN202120267474U CN214627426U CN 214627426 U CN214627426 U CN 214627426U CN 202120267474 U CN202120267474 U CN 202120267474U CN 214627426 U CN214627426 U CN 214627426U
- Authority
- CN
- China
- Prior art keywords
- led lamp
- light source
- photosensitive sensor
- mcu
- light
- 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.)
- Active
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model provides a system capable of adjusting the brightness of an LED lamp, which comprises an MCU, a light path device and a current adjusting circuit; the light path device is provided with a light emitting component, the light emitting component comprises a light source and a photosensitive sensor, the photosensitive sensor is arranged in a preset range of the light source, the light source is connected with the MCU through the current regulating circuit, and the photosensitive sensor is connected with the MCU. The utility model discloses an increase feedback circuit (photosensitive sensor), make the light source form closed loop adjustting of the lighteness, avoid appearing the LED lamp along with long-term use the inconsistent problem of luminance between the unstable and a plurality of LED to can guarantee the uniformity of the luminous luminance of different LED lamp pearls.
Description
Technical Field
The utility model belongs to the technical field of the light adjustment technique and specifically relates to a LED lamp brightness adjusting system is related to.
Background
At present, a light path excitation source of a dry fluorescence immunoassay analyzer generally adopts a low-power laser or a low-power LED lamp, and the service life of the LED lamp is generally more than 5 to 10 ten thousand hours, so that the use in most scenes is met.
The LED lamp is usually designed by adopting a constant current driving circuit, the brightness of the LED lamp under the same driving current has a great relation with lamp beads, a shell, temperature and the like, and the consistency of the brightness of different LED lamp beads cannot be ensured in the prior art, so that the excitation consistency of signals cannot be ensured.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a LED lamp brightness control system to solve above-mentioned technical problem, thereby can improve the uniformity of the luminous luminance of different LED lamp pearls.
In order to solve the technical problem, the utility model provides a system for adjusting the brightness of a LED lamp, which comprises an MCU, a light path device and a current adjusting circuit;
the light path device is provided with a light emitting component, the light emitting component comprises a light source and a photosensitive sensor, the photosensitive sensor is arranged in a preset range of the light source, the light source is connected with the MCU through the current regulating circuit, and the photosensitive sensor is connected with the MCU.
Preferably, the number of the light emitting components is at least 2.
As a preferred scheme, the current adjusting circuits are in one-to-one correspondence with the light sources, and each light source is connected to the MCU through the current adjusting circuit corresponding thereto.
Preferably, the distance between the photosensitive sensor in each light-emitting component and the light source is consistent.
Preferably, the photosensitive sensor in each of the light emitting assemblies is oriented in the same direction relative to the light source.
Compared with the prior art, the utility model discloses beneficial effect lies in:
the utility model provides a system capable of adjusting the brightness of an LED lamp, which comprises an MCU, a light path device and a current adjusting circuit; the light path device is provided with a light emitting component, the light emitting component comprises a light source and a photosensitive sensor, the photosensitive sensor is arranged in a preset range of the light source, the light source is connected with the MCU through the current regulating circuit, and the photosensitive sensor is connected with the MCU. The utility model discloses an increase feedback circuit (photosensitive sensor), make the light source form closed loop adjustting of the lighteness, avoid appearing the LED lamp along with long-term use the inconsistent problem of luminance between the unstable and a plurality of LED to can guarantee the uniformity of the luminous luminance of different LED lamp pearls.
Drawings
Fig. 1 is a partial side view of an LED lamp brightness adjustment system according to an embodiment of the present invention;
fig. 2 is a partial top view of an LED lamp brightness adjustment system according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a system for adjusting brightness of an LED lamp according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, an embodiment of the present invention provides a system for adjusting brightness of an LED lamp, including an MCU, a light path device, and a current adjusting circuit 3;
the light path device is provided with a light emitting component, the light emitting component comprises a light source 2 and a photosensitive sensor 1, the photosensitive sensor 1 is arranged in a preset range of the light source 2, the light source 2 is connected with the MCU through the current regulating circuit 3, and the photosensitive sensor 1 is connected with the MCU.
The utility model mainly adds a path of Photosensitive Device (PD) near the light source 2 of the existing light path system to detect the luminous brightness of the LED lamp at the same angle/position in real time and record and store the original data; after the detection value of a Photosensitive Device (PD) at the position changes and exceeds a threshold value (compared with original data) along with the long-term use and temperature change of the LED lamp, the system automatically adjusts the current value of the corresponding constant current driving circuit of the LED lamp to enable the brightness of the emitted light to return to an allowable range.
The utility model discloses an increase a feedback system on current optical path system, the change of real-time detection LED lamp luminous luminance, the electric current that adjusts the LED lamp through master control MCU after detecting luminance change and surpassing a definite value makes it remain unanimous all the time in order to change luminous luminance, effectively improves dry-type fluorescence immunoassay appearance excitation circuit's uniformity, and then improves the accuracy of detected signal.
In the embodiment of the present invention, as a preferable scheme, the number of the light emitting components is at least 2.
In the embodiment of the present invention, as a preferred scheme, the current adjusting circuit and the light source 2 are in a one-to-one correspondence relationship, each the light source 2 is connected to the MCU through the current adjusting circuit corresponding thereto.
In the embodiment of the present invention, as a preferable scheme, the distance between the photosensitive sensor 1 in each of the light emitting assemblies and the light source 2 is uniform.
In the embodiment of the present invention, as a preferable scheme, the direction of the photosensitive sensor 1 in each of the light emitting assemblies is consistent with the direction of the light source 2.
It should be noted that the present invention is applicable to the optical path system of the plurality of light sources 2. Preferably, each light source 2 is provided with one photosensitive sensor 1 for brightness feedback, and each light source 2 adjusts the brightness through a current adjusting circuit, so that the brightness consistency of each light source 2 can be better ensured. Further, in each group of light emitting components, the distance and the direction between the photosensitive sensor 1 and the light source 2 are all the same, and the consistency of brightness feedback is unified, so that the brightness consistency among different light sources 2 is more effectively improved.
In a specific embodiment, a brightness detector (photosensitive sensor) may be disposed beside the LED lamp, and the current brightness value of the LED may be detected and compared with the initial value each time the LED lamp is used, and after the brightness is reduced to the lower limit, the MCU may control the digital adjustable resistor (current adjusting circuit) to increase the current of the LED lamp and increase the brightness to be close to the initial value.
Compared with the prior art, the utility model discloses increased feedback circuit (photosensitive device PD), made light source 2 form the luminance feedback and the regulation of closed loop, avoided the LED lamp along with long-term life, temperature, light decay etc. lead to the dry-type fluorescence immunoassay appearance signal excitation that LED lamp luminance reduction arouses to weaken so that the measured value changes great to but the running state of real time monitoring instrument forms matter accuse, in time effectual warning user's instrument is in effective running state.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (5)
1. A system capable of adjusting the brightness of an LED lamp is characterized by comprising an MCU, a light path device and a current adjusting circuit;
the light path device is provided with a light emitting component, the light emitting component comprises a light source and a photosensitive sensor, the photosensitive sensor is arranged in a preset range of the light source, the light source is connected with the MCU through the current regulating circuit, and the photosensitive sensor is connected with the MCU.
2. The LED lamp brightness adjustable system according to claim 1, wherein the number of the light emitting components is at least 2.
3. The system of claim 2, wherein the current adjusting circuits are in one-to-one correspondence with the light sources, and each light source is connected to the MCU through the corresponding current adjusting circuit.
4. The LED lamp brightness adjustable system according to claim 3, wherein the photosensitive sensor in each of the light emitting assemblies is at a uniform distance from the light source.
5. The LED lamp brightness adjustable system according to claim 4, wherein the photosensitive sensor in each of the light emitting assemblies is oriented in a same direction with respect to the light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267474.8U CN214627426U (en) | 2021-01-29 | 2021-01-29 | System capable of adjusting brightness of LED lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120267474.8U CN214627426U (en) | 2021-01-29 | 2021-01-29 | System capable of adjusting brightness of LED lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214627426U true CN214627426U (en) | 2021-11-05 |
Family
ID=78439713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120267474.8U Active CN214627426U (en) | 2021-01-29 | 2021-01-29 | System capable of adjusting brightness of LED lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214627426U (en) |
-
2021
- 2021-01-29 CN CN202120267474.8U patent/CN214627426U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3205326U (en) | Automatic sensing lighting dimmer | |
| KR101561853B1 (en) | A led lighting device having a kind of function of time managment and method of verifying lifetime thereof | |
| KR101048856B1 (en) | Image Intrusion Detection System and Method Using Dot Lighting | |
| CN104582166A (en) | Constant illumination driving method for coping with LED (light-emitting diode) light decay | |
| CN108235518B (en) | LED intelligent control energy-saving system | |
| CN214627426U (en) | System capable of adjusting brightness of LED lamp | |
| CN108347811A (en) | A kind of light of stage control method, electronic equipment and storage medium | |
| SE9803620D0 (en) | Method and device for error detection | |
| US9195346B2 (en) | Touch panel, touch device using the same, and touch control method | |
| CN116723600A (en) | LED illumination output control method and system | |
| CN202551448U (en) | Photoelectric sensor for auto-dimming constant-light table lamp | |
| CN204269847U (en) | Novel key action detection photoelectric sensor | |
| CN107831141B (en) | Method for recording service life of consumable | |
| CN114323575B (en) | Detection and calculation method for brightness attenuation of traffic signal lamp beads | |
| RU2009137605A (en) | METHOD OF ORGANIZING ENERGY-SAVING ARTIFICIAL LIGHTING AND INTELLECTUAL DEVICE (OPTIONS) | |
| CN208719995U (en) | A kind of anti-interference vision light source | |
| CN2914139Y (en) | Invisible light source for shooting | |
| CN209748856U (en) | Little night-light of intelligence response | |
| CN112614465A (en) | Method and device for accurately controlling backlight brightness of airborne display | |
| CN206977754U (en) | Eye-protecting lamp based on colour temperature control | |
| CN204554416U (en) | A kind of LED energy conserving lamp | |
| CN209435345U (en) | The web camera of the infrared night vision of outdoor water-proof type and double end LED light | |
| JPS57133685A (en) | Excitation circuit for light emitting element | |
| CN209842303U (en) | High-brightness camera point light source | |
| CN202414230U (en) | Camera shooting illuminator for cigarette packet comprehensive appearance quality online detection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |