CN213126535U - LED light source - Google Patents
LED light source Download PDFInfo
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- CN213126535U CN213126535U CN202021963485.1U CN202021963485U CN213126535U CN 213126535 U CN213126535 U CN 213126535U CN 202021963485 U CN202021963485 U CN 202021963485U CN 213126535 U CN213126535 U CN 213126535U
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Abstract
The utility model discloses a LED light source, this LED light source includes: the LED light supplement lamp comprises a photosensitive sensor, at least one LED light supplement lamp, at least one signal conversion circuit for converting a signal detected by the photosensitive sensor into an output current, and a current control chip for generating a light supplement adjusting current according to the relationship between the output current and a pre-stored LED light supplement lamp adjusting current so as to respectively control the illumination intensity and illumination brightness of each LED light supplement lamp; the signal output end of the photosensitive sensor is connected with the signal input end of each signal conversion circuit, the current output end of each signal conversion circuit is respectively connected with the current control chip, and each LED light supplement lamp of the current control chip is respectively connected. Can be through every LED light filling lamp of independent control LED array the inside, according to the not equidirectional intensity of ambient light, the luminance of every LED light filling lamp is adjusted to the accuracy, makes illumination region luminance more even unified.
Description
Technical Field
The utility model relates to a microscope lighting technology field specifically, relates to a LED light source.
Background
The LED Light source (Light-Emitting Diode) is a Light source using a Light-Emitting Diode as a Light-Emitting body, and has the characteristics of high efficiency, long service life, and the like. The led was invented in the 60 s of the 20 th century, and in the next decades, its basic application was as an indicator light for electronic devices such as radio and recorder, which could be used continuously for 10 ten thousand hours, 100 times longer than a common incandescent bulb. Therefore, LED light sources are widely used in the field of illumination for photomicrography. However, in the prior art, due to different ambient light intensities and luminances in different directions, luminances of light sources required by an object on a microscope stage in different directions are also different, and when an object on the microscope stage is subjected to light supplement by an LED light source, a picture is not clear during microscopic shooting due to uneven illumination luminance, which affects use effects.
SUMMERY OF THE UTILITY MODEL
To overcome the problems in the related art, the present disclosure provides an LED light source including: the LED light supplement lamp comprises a photosensitive sensor, at least one LED light supplement lamp, at least one signal conversion circuit for converting a signal detected by the photosensitive sensor into an output current, and a current control chip for generating a light supplement adjusting current according to the relationship between the output current and a pre-stored LED light supplement lamp adjusting current so as to respectively control the illumination intensity and illumination brightness of each LED light supplement lamp;
the signal output end of the photosensitive sensor is connected with the signal input end of each signal conversion circuit, the current output end of each signal conversion circuit is respectively connected with the current control chip, and the current control chip is respectively connected with each LED light supplementing lamp.
Optionally, the LED light supplement lamps in the LED light source are circular LED light supplement lamp arrays or zigzag LED light supplement lamp arrays.
Optionally, the illumination intensity of the LED light supplement lamp is between 0Lux and 60000 Lux.
Optionally, the luminance of the LED fill light is between 0mcd and 3500 mcd.
Optionally, the color temperature of the LED fill-in light is 5500k-6500 k.
Optionally, the LED light source includes a heat sink inside.
Optionally, the heat sink includes an LED heat sink substrate and at least one fin.
Optionally, the photosensitive sensor is a phototriode.
To sum up, the utility model provides a LED light source, this LED light source includes: the LED light supplementing lamp comprises a photosensitive sensor, at least one LED, at least one signal conversion circuit for converting a signal detected by the photosensitive sensor into an output current, and a current control chip for generating a light supplementing adjusting current according to the relationship between the output current and a pre-stored LED light supplementing lamp adjusting current so as to respectively control the illumination intensity and the illumination brightness of each LED light supplementing lamp; the signal output end of the photosensitive sensor is connected with the signal input end of each signal conversion circuit, the current output end of each signal conversion circuit is respectively connected with the current control chip, and the current control chip is respectively connected with each LED light supplement lamp. Can be through every LED light filling lamp of independent control LED array the inside, according to the not equidirectional intensity of ambient light, the luminance of every LED light filling lamp is adjusted to the accuracy, makes illumination region luminance more even unified.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of an LED light source according to an exemplary embodiment;
fig. 2 is a schematic structural diagram of an annular LED fill-in light array according to an exemplary embodiment.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Fig. 1 is a schematic structural diagram of an LED light source according to an exemplary embodiment, and referring to fig. 1, the LED light source 100 includes: the light-emitting diode light-compensating control circuit comprises a photosensitive sensor 110, at least one LED light-compensating lamp 130, at least one signal conversion circuit 120 for converting a signal detected by the photosensitive sensor 110 into an output current, and a current control chip for generating a light-compensating adjusting current according to a pre-stored LED light-compensating lamp adjusting current relation (the adjusting current relation can be a comparison table preset in the chip) to respectively control the illumination intensity and the illumination brightness of each LED light-compensating lamp 130; the signal output end of the photosensitive sensor 110 is connected with the signal input end of each signal conversion circuit 120, and the current output end of each signal conversion circuit is respectively connected with each LED light supplement lamp.
Illustratively, the photosensor 110 is typically a photo transistor, and is capable of absorbing light energy emitted from the environment or from the LED light source and converting the light energy into electrical energy, detecting the brightness of the environment around the object to be photographed, and sending a detected ambient light brightness signal to the signal conversion circuit 120. The signal conversion circuit 120 is a preset circuit capable of processing an ambient light brightness signal and converting the ambient light brightness signal into an output current, and the output current respectively controls the illumination intensity and the illumination brightness of each LED light supplement lamp 130, so that the purpose of automatically supplementing light to an object to be photographed according to the ambient light brightness is achieved.
In addition, the photosensor 110 can detect the ambient light brightness of the object to be photographed in different directions, and determine the ambient light brightness signal in each direction after conversion, and the signal conversion circuit 120 converts the ambient light brightness signal in each direction into output currents corresponding to different directions, and respectively controls the LED fill-in light corresponding to each direction.
In addition, the structure of the signal conversion circuit 120 is determined by the operator according to the preset ambient light brightness signal in each direction and the conversion relationship between the brightness and the intensity of each LED fill light.
Fig. 2 is a schematic structural diagram of an annular LED light supplement lamp array according to an exemplary embodiment, and as shown in fig. 2, the LED light supplement lamp in the LED light source is an annular LED light supplement lamp array or a rectangular LED light supplement lamp array.
The illumination intensity of the LED light supplement lamp is between 0Lux and 60000Lux, the brightness of the LED light supplement lamp is between 0mcd and 3500mcd, and the color temperature of the LED light supplement lamp is between 5500k and 6500 k. The LED light supplement lamp has the characteristics of low power consumption, energy conservation and environmental protection. Because the LED light supplement lamps form a square-shaped array, the brightness difference from the illumination central point to the light edge is very small, and the illumination effect is very uniform. Also, the array LED typically has a 5-10 times longer life than the conventional halogen lamp.
Optionally, the LED light source includes a heat sink inside, and the heat sink includes an LED heat sink substrate and at least one fin. The heat dissipation structure formed by the base body of the LED heat dissipation fin and the plurality of fins is different from a single fin, and the heat dissipation units are U-shaped or V-shaped channels formed by every two adjacent fins and the base body.
The utility model provides a LED light source, this LED light source includes: the LED light supplementing lamp comprises a photosensitive sensor, at least one LED, at least one signal conversion circuit for converting a signal detected by the photosensitive sensor into an output current, and a current control chip for generating a light supplementing adjusting current according to the relationship between the output current and a pre-stored LED light supplementing lamp adjusting current so as to respectively control the illumination intensity and the illumination brightness of each LED light supplementing lamp; the signal output end of the photosensitive sensor is connected with the signal input end of each signal conversion circuit, the current output end of each signal conversion circuit is respectively connected with the current control chip, and the current control chip is respectively connected with each LED light supplement lamp. Can be through every LED light filling lamp of independent control LED array the inside, according to the not equidirectional intensity of ambient light, the luminance of every LED light filling lamp is adjusted to the accuracy, makes illumination region luminance more even unified.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.
In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.
Claims (8)
1. An LED light source, comprising: the LED light supplement lamp comprises a photosensitive sensor, at least one LED light supplement lamp, at least one signal conversion circuit for converting a signal detected by the photosensitive sensor into an output current, and a current control chip for generating a light supplement adjusting current according to the relationship between the output current and a pre-stored LED light supplement lamp adjusting current so as to respectively control the illumination intensity and illumination brightness of each LED light supplement lamp;
the signal output end of the photosensitive sensor is connected with the signal input end of each signal conversion circuit, the current output end of each signal conversion circuit is connected with the current control chip, and the current control chip is connected with each LED light supplementing lamp respectively.
2. The LED light source of claim 1, wherein the LED fill-in light in the LED light source is an annular LED fill-in light array or a rectangular LED fill-in light array.
3. The LED light source as claimed in claim 1, wherein the LED fill-in light has an illumination intensity of 0Lux-60000 Lux.
4. The LED light source as claimed in claim 1, wherein the brightness of the LED fill light is between 0mcd and 3500 mcd.
5. The LED light source as claimed in claim 1, wherein the color temperature of the LED fill light is between 5500k and 6500 k.
6. The LED light source of claim 1 comprising a heat sink inside the LED light source.
7. The LED light source of claim 6 wherein the heat sink comprises an LED heat sink substrate and at least one fin.
8. The LED light source of claim 1 wherein the photosensor is a phototransistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963485.1U CN213126535U (en) | 2020-09-09 | 2020-09-09 | LED light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021963485.1U CN213126535U (en) | 2020-09-09 | 2020-09-09 | LED light source |
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| Publication Number | Publication Date |
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| CN213126535U true CN213126535U (en) | 2021-05-04 |
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| CN202021963485.1U Active CN213126535U (en) | 2020-09-09 | 2020-09-09 | LED light source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115103096A (en) * | 2022-06-16 | 2022-09-23 | 西安文理学院 | Artificial intelligence machine vision image acquisition system |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115103096A (en) * | 2022-06-16 | 2022-09-23 | 西安文理学院 | Artificial intelligence machine vision image acquisition system |
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