Structured Light Projection Engine

Structured Light Projection Engine is the heart of high-performance 3D AOI cameras, powering precise 3D topography reconstruction for electronics manufacturing inspection. As the core component that emits coded light patterns, it defines the inspection accuracy, anti-interference capability, and speed of the entire 3D AOI system. Adopting advanced DLP display technology, this projection engine delivers high-brightness, and high-contrast coded patterns (multi-frequency fringes, Gray codes, or random dot matrices) with ultra-fine pixel pitch. Its blue-light projection design effectively minimizes reflection interference from glossy surfaces (e.g., solder joints, metal components), while the adaptive pattern modulation technology ensures clear imaging even for high-density PCBs and shadowed areas。

Accuray Newly Developed a Structured Light Projection Engine with following specs.

Features:

1. TI DLP4710 DMD is adopted
2. Resolution：1920*1080
3. Confocal projection ensured by Special tilt-shift design
4. Support programmable exposure time
5. Supports multiple interfaces such as USB, RS 485, Trigger In, and Trigger Out
6. All-metal material combined with passive cooling ensures the industrial-grade stability

Applications:
3D AOI, 3D SPI, high-precision 3D scanning, etc.

Electric Parameters:
Main board Power Supply: 12～19 V
LED Current: 200mA～16000mA
Trigger Input: Optocoupler isolated input, drive current range 6~14mA, default at 5V
Trigger Output: Schmitt buffer output, with a maximum drive capability of 32mA at 5V

Optical Parameters:
Display Technology: DMD Technology
Illuminant: Blue LED (450-460nm)
F#2.6
Relative Illumination: >95%
Resolution: 1920*1080
Projection Angle: 25°
Contrast: >1500:1
Distortion: ≦1.8%
Illumination Uniformity: >85%
Working Distance: 220mm
Frame Size (mm): 132x77