In the fields of smart manufacturing, industrial automation, and consumer electronics, 3D detection technology has gradually become mainstream. Whether it's 3D structured light facial recognition in mobile phones or high-precision dimensional measurement in industrial production, stable and accurate light source support is indispensable.

In this field, Korean QSI laser diodes have become core components in numerous 3D inspection systems due to their high quality, strong stability, and reliability. As the general agent of Korean QSI laser diodes in China, Longxingda Technology is committed to providing customers with genuine original products and professional technical support, thereby contributing to the development of the 3D inspection industry.

1. Principle of 3D detection and the role of laser diode

The fundamental approach of 3D detection is to acquire spatial information of an object's surface through optical imaging. Currently, mainstream 3D detection methods include:

Laser triangulation: Using laser light to hit the surface of an object, the shape and size of the object can be calculated based on the angle and position of the reflected light.

Structured light projection: Using a laser to emit regular gratings or dot patterns, a camera captures the deformed patterns on the object surface, thereby reconstructing 3D information.

TOF (Time-of-Flight): A laser diode emits pulsed light, and the time it takes for the light to reflect back from an object's surface is calculated to obtain distance information.

Among these methods, the laser diode, as the core of the light source, determines the accuracy and reliability of the entire detection system.

II. Advantages of QSI laser diode in 3D detection

Compared to ordinary light sources, QSI laser diodes exhibit significant advantages in 3D detection:

1. Stable beam quality

The QSI laser diode outputs a beam with good directionality, a small divergence angle, and a uniform spot, which is crucial for precise 3D reconstruction.

2. Flexible wavelength selection

QSI offers a wide range of wavelength laser diodes, commonly including red light, near-infrared (780nm, 808nm, 850nm, 940nm, etc.), to meet different detection needs for structured light and Time-of-Flight (TOF).

3. Excellent pulse performance

In the Time-of-Flight (TOF) system, the pulse characteristics of the laser determine the resolution and accuracy of detection. The QSI low-power pulsed laser diode, with its fast response and high repetition rate, can significantly enhance ranging and imaging performance.

4. Reliability and longevity

3D detection systems often require continuous operation, especially in industrial inspection scenarios. QSI laser diodes undergo rigorous testing to ensure stable performance even during prolonged operation.

5. Small size and easy integration

QSI products come in various packaging forms and are compact in size, making them suitable for installation in micro sensor modules. They are widely used in 3D recognition and imaging for consumer electronic devices.

III. Typical application scenarios

The application of QSI laser diodes in 3D inspection spans multiple industries, specifically including:

Consumer electronics

Face recognition, gesture recognition, and 3D modeling for smartphones and tablet computers.

Industrial manufacturing

Part size inspection, surface defect detection, and industrial robot visual navigation.

Automobile industry

In-car gesture recognition, Driver Monitoring System (DMS), and 3D LiDAR-assisted detection.

Medical field

3D imaging surgery assistance, dental scanning, skin detection.

These applications all have strict requirements for light sources, and QSI laser diodes, with their high-performance characteristics, can ensure the accuracy and reliability of detection results.

IV. Longxingda Technology - General Agent of QSI in China

As the general agent of QSI laser diodes in China, Longxingda Technology is not just a supplier, but also a trusted partner for our customers. We not only offer a full range of QSI laser diode products, but also provide our customers with:

Product selection support: Recommend suitable models based on application scenarios.

Technical consulting services: Assist clients in optimizing designs and enhancing system performance.

Quick supply and after-sales support: Ensure the smooth progress of customers' research and development and production.

Leveraging years of industry experience, Longxingda Technology has forged stable partnerships with numerous research institutes, instrument manufacturers, and intelligent manufacturing enterprises.

In today's era where 3D detection is becoming increasingly prevalent, laser diodes have emerged as an indispensable core component. QSI laser diodes, with their exceptional performance and reliability, provide robust support for various 3D detection systems. Looking ahead, as smart manufacturing and consumer electronics continue to evolve, QSI laser diodes are poised to shine brilliantly in even more domains. As the general agent of QSI in China, Longxingda Technology will persistently offer customers premium products and professional services, bolstering industry innovation and progress.