An IR laser module plays an important role in 3D machine vision systems, where reliable depth information and consistent pattern projection are essential for accurate detection. However, selecting the wrong wavelength, output power, or beam pattern can affect imaging quality, detection stability, and system integration. For applications such as face recognition, industrial inspection, and 3D scanning, you need a laser source that matches your optical design and working environment. An 830nm infrared laser module with structured light projection offers a practical option for these applications. Understanding its specifications and integration requirements helps you determine whether it fits your detection system.
Why Use an IR Laser Module for 3D Machine Vision?
Infrared lasers provide structured illumination for machine vision systems that need additional information about object surfaces, shapes, and spatial positions. Unlike visible laser sources, an 830nm IR laser operates in the near-infrared spectrum, making it suitable for systems designed to capture infrared illumination.
A structured light system projects a predefined pattern onto an object. A camera then captures the pattern distortion, and image-processing software uses this information to reconstruct surface geometry or calculate depth.
Common applications include:
- 3D object recognition: Capture surface information for object identification and classification.
- Face recognition: Provide structured illumination for facial depth acquisition in compatible imaging systems.
- Industrial inspection: Support dimensional measurement and surface inspection.
- 3D scanning: Generate projected reference patterns for point cloud reconstruction.
- Robotic vision: Supply depth information for object positioning and automated guidance.
The actual detection performance depends on the camera, optical configuration, calibration, processing algorithm, and operating environment.
Key Specifications of the 830nm 200mW IR Laser Module
The BU-LASER 830nm 200mW structured light laser module combines infrared emission with a DOE (Diffractive Optical Element) lens to generate a 30,000-point pattern.
Its compact housing also supports integration into space-constrained optical and electronic equipment.
Core Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | IR Laser Module |
| Wavelength | 830nm |
| Output Power | 200mW |
| Working Voltage | 3–5V |
| Beam Mode | 30,000 points |
| Housing Size | 9 × 18mm |
| Lens | Glass + DOE |
| Lifespan | 10,000 hours |
| Customization | Housing size customizable |
1. 830nm Infrared Wavelength
The 830nm wavelength belongs to the near-infrared range. It is suitable for optical systems designed around infrared illumination, including machine vision and 3D detection equipment.
When selecting an infrared laser module, check whether your camera sensor and optical filters support the selected wavelength. Their spectral response directly affects how effectively the projected pattern can be captured.
2. 200mW Output Power
With a rated optical output of 200mW, this module provides an illumination source for structured light projection.
The product description specifies a reference detection range of 0.5–5m. However, the usable distance depends on target reflectivity, ambient illumination, camera sensitivity, lens configuration, and system calibration.
3. 30,000-Point Structured Light Projection
The integrated DOE optical element generates a random pattern containing approximately 30,000 laser points.
This pattern provides multiple reference features for machine vision algorithms to analyze surface deformation and calculate 3D information. It is particularly relevant to systems that require dense structured light patterns rather than a single laser spot or line.
IR Laser Module vs. Other Laser Types: How Do They Differ?
Not every laser module suits the same optical application. Comparing common configurations can help you narrow down your selection.
| Laser Type | Main Characteristics | Typical Applications |
|---|---|---|
| IR Laser Module | Near-infrared emission | 3D sensing, face recognition, machine vision |
| Red Laser Module | Visible red output | Positioning, alignment, measurement |
| Green Laser Module | Visible green output | Visual positioning, alignment |
| Blue Laser Module | Shorter visible wavelength | Engraving, processing, optical applications |
| Fiber-Coupled Laser | Optical fiber output | Industrial processing and specialized optical systems |
If your equipment uses an infrared camera and requires structured light for depth acquisition, an 830nm IR laser module may be more appropriate than a visible red or green laser.
How to Select an IR Laser Module for Your Detection System
Choosing a laser source involves more than matching its output power. You should evaluate the optical, electrical, and mechanical requirements of your complete system.
Follow these steps before purchasing:
- Confirm the wavelength: Check your camera’s spectral sensitivity and filter specifications. An 830nm source requires compatible optical components.
- Determine the required output power: Evaluate the target distance, surface reflectivity, ambient lighting, and exposure settings.
- Select the beam pattern: Decide whether your application requires a dot matrix, line, cross, grid, or DOE-generated structured light pattern.
- Check mechanical dimensions: Compare the module’s 9 × 18mm housing with your equipment’s available installation space.
- Verify electrical compatibility: Confirm the operating voltage, current requirements, driver circuit, and thermal conditions.
- Evaluate customization options: Discuss housing dimensions, optical configurations, and other OEM/ODM requirements with your manufacturer.
For 200mW infrared laser applications, also verify the applicable laser safety classification and protective measures for the complete system. Do not assume a safety class from the wavelength or output power alone.
Why Work with BU-LASER for IR Laser Modules?
Dongguan Blueuniverse Laser Co., Ltd. has specialized in semiconductor laser technology since 2010. Operating under the BU-LASER and VIAN brands, the company integrates laser R&D, manufacturing, and sales.
Its manufacturing and technical capabilities support customers developing laser-based equipment across different industries.
Key company strengths include:
- Broad wavelength coverage: Laser solutions covering 375nm–980nm.
- R&D capabilities: More than 80 patents, including 14 invention patents.
- OEM and ODM services: Custom laser module solutions for different equipment requirements.
- Quality management: ISO9001:2015 quality management system implementation.
- Certification and inspection: Relevant TUV, BV, and SGS certifications and testing credentials.
BU-LASER also offers different beam configurations, including dot, line, cross, grid, multi-line, and DOE patterns. This product range allows equipment manufacturers to discuss optical configurations according to their application requirements.
FAQ
1. What is an 830nm IR laser module used for?
An 830nm IR laser module can provide infrared illumination for 3D scanning, face recognition, machine vision detection, and structured light imaging systems. Its suitability depends on the camera and optical configuration.
2. What does a 30,000-point structured light pattern do?
A 30,000-point DOE pattern projects multiple reference points onto an object’s surface. A compatible imaging system can analyze the captured pattern to obtain surface and depth information for 3D reconstruction.
3. Can BU-LASER customize IR laser modules for OEM projects?
Yes. BU-LASER provides OEM and ODM services for laser modules. Customers can discuss housing dimensions, wavelength, output power, beam pattern, and electrical requirements based on their equipment designs.
Conclusion
Selecting the right IR laser module requires careful consideration of wavelength, optical power, beam configuration, and system compatibility. BU-LASER’s 830nm 200mW structured light laser module combines a compact 9 × 18mm housing with DOE-based 30,000-point projection, making it a candidate for 3D scanning, face recognition, and machine vision detection systems. By evaluating your camera specifications and application requirements before integration, you can make a more informed choice for your optical equipment.
Contact BU-LASER to discuss your IR laser module requirements, request technical specifications, or explore OEM/ODM customization for your next machine vision project.
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