Automobile lamp LED light detection mechanism based on photosensitive sensors

A technology of photosensitive sensor and detection mechanism, which can be used in lamp testing, instruments, measuring electricity and other directions, and can solve problems such as detection

Inactive Publication Date: 2015-10-07
5 Cites 2 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a photosensitive sensor-based LED light detection mechanism for car lights, which solves the problem th...
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The invention discloses an automobile lamp LED light detection mechanism based on photosensitive sensors. The automobile lamp LED light detection mechanism comprises a clamp load disc which is fixedly provided with an automobile lamp clamp and a PCB circuit board. The automobile lamp clamp is provided with an LED automobile lamp. The clamp load disc is provided with a position adjusting mechanism which is provided with light guide elements and the photosensitive sensors. The LED automobile lamp is connected with an automobile lamp power-on device via an automobile lamp power plug. The automobile lamp power-on device is connected with a power supply module. A problem that the LED hidden in the internal side of the automobile lamp cannot be detected by using a conventional camera detection mode can be solved so that detection cost performance and stability can be enhanced.

Application Domain

Lamps testing

Technology Topic

Light detectionEngineering +4


  • Automobile lamp LED light detection mechanism based on photosensitive sensors
  • Automobile lamp LED light detection mechanism based on photosensitive sensors
  • Automobile lamp LED light detection mechanism based on photosensitive sensors


  • Experimental program(1)

Example Embodiment

[0012] With reference to the attached drawings, a light-sensitive sensor-based LED light detection mechanism for car lights includes a fixture carrier plate. The fixture carrier plate is fixedly mounted with car lamp fixtures and PCB circuit boards. The car lamp fixture is equipped with LED car lights and fixture carriers. A position adjustment mechanism is installed on the disk, and the position adjustment mechanism is equipped with light guide elements and photosensitive sensors. The LED car lights are connected to the car light energizing device through the light power plug, and the car light energizing device is connected to the power module; the position adjustment mechanism will lead The light element extends into the LED car light and approaches the LED light. The light guide element exports the light of the corresponding LED light to the receiving end of the photosensitive sensor. The LED light triggers the photosensitive sensor, and the photosensitive sensor transmits the output signal to the PCB circuit board. The circuit board amplifies and converts the signal of the photosensitive sensor into a 24V switch signal, which is transmitted to the PLC controller, and the PLC controller detects the abnormality of the LED car light according to the output signal of the PCB board. The trigger photosensitive sensor is installed in the photosensitive sensor mounting hole, and the photosensitive sensor mounting hole is located on the position adjustment mechanism.
[0013] The photosensitive sensor detects the visible light signal and outputs a low level to the PCB board. Multiple sensor signals are processed by the NAND gate inside the PCB, and the inverted Schmitt trigger is triggered to output the switch signal to the PLC.
[0014] 3.2 The high level of the switch signal means that all the input sensors have detected visible light, and the low level means that at least one sensor has not detected visible light. Use this as a sign to judge whether the LED light is qualified.
[0015] The position adjustment mechanism can ensure that the light guide element is close enough to the LED car light to ensure the stability of the detection signal reception.


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Description & Claims & Application Information

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