Speckle Structured Light Laser 450nm 40mW Blue Diode Laser Module with 30K Random Dots for 3D Scanning

This 450nm 40mW blue speckle structured light laser is equipped with precision DOE diffractive optical element, projecting fixed 30,000 unique random speckle dots, specially optimized for single-shot high-precision 3D reconstruction, depth sensing and industrial machine vision scanning. Thanks to short 450nm blue wavelength, it achieves superior imaging performance on glossy metal, dark plastic and curved surfaces compared with infrared & red structured light modules.

Core Advantages

1. 30K Unique Random Speckle DOE Design

Custom diffractive lens generates 30,000 non-repeating random dots; each speckle serves as exclusive feature marker, enabling fast stereo matching and dense point-cloud output without multi-frame exposure. Uniform dot distribution across full field of view, no local over-dense or blank blind area.

2. 450nm 40mW Stable Blue Laser Superiority

Shorter blue wavelength restrains stray reflection, effectively scans high-gloss metal, black non-reflective workpieces without matte spray pretreatment

Built-in constant-current driving circuit, ±3% power stability during long continuous operation, consistent speckle definition for long-term batch inspection

Moderate 40mW output balances eye safety and enough imaging brightness under indoor factory ambient light.

3. Compact Adjustable Industrial Structure

Standard brass cylindrical housing, focus lens adjustable to calibrate clear speckle working distance (custom range available). Compact size for easy embedded installation inside depth camera, handheld 3D scanner and automated inspection equipment.

4. High Anti-interference & Wide Compatibility

Strong anti-ambient-light interference, works stably under normal workshop illumination; compatible with mainstream structured-light algorithm software and stereo vision SDK.

5.Typical Applications

• Industrial 3D dimensional inspection, surface defect detection on the production line
• Handheld 3D scanner, reverse modeling for mold & artwork
• Robotic depth vision, automated bin picking positioning
• Biometric recognition, AR depth sensing module

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