G555D050-18x55-30 Green Laser Module

High visibility DPSS laser at peak human eye sensitivity wavelength, ideal for alignment, positioning, and precision measurement applications

555nm
Green
555nm

Key Features

Visibility Peak Human Eye
Beam Divergence 30 mrad
Stability < ±5%
Lifetime 5,000 hrs

Top Applications

🎯
Alignment
📏
Positioning
🔬
Interferometry
📊
Machine Vision

Pricing Information

Quantity 1-10 $550
Quantity 11-50 $490
Quantity 51-100 $430
OEM Integration Contact Us
Request Quote

Technical Specifications

Optical Specifications

Wavelength 549-561 nm (typ. 555 nm)
Output Power 50-60 mW (CW)
Power Stability ±5% typ. (±10% max)
Output Power Mode CW
Beam Divergence 30 mrad typ. (50 mrad max)
Beam Diameter 0.5 mm at aperture
Beam Waist 250 μm
Polarization Linear, 100:1
Beam Roundness 70%

Electrical & Environmental

Operating Voltage 1.8-2.3 VDC (typ. 2V)
Operating Current 2000 mA typ. (2500 mA max)
Power Type ACC
Power Consumption 4W typ. (5.75W max)
Operating Temp 15-35°C (at NTC)
Storage Temp 0-40°C
Humidity 5-85% RH
Dimensions Ø18 × 55 mm
Weight < 200 g

Performance Characteristics

Laser Technology DPSS (Diode-Pumped Solid-State)
Housing Material Brass with gold-plating
MTTF (Mean Time To Failure) 5,000 hours @ optimal temperature
Laser Class 3B
Beam Mode Multi-mode longitudinal, TEMno transverse
Residual IR < 3%
Thermistor Integrated NTC (10kΩ @ 25°C)

Applications

🎯

Laser Alignment

Precision optical alignment systems, leveling instruments, and construction layout tools benefiting from maximum visibility.

📏

Positioning Systems

Industrial positioning, CNC reference beams, and automated manufacturing alignment with optimal human eye response.

🔬

Interferometry

Optical testing, surface metrology, and precision measurement systems requiring stable coherent light sources.

📊

Machine Vision

Structured light scanning, 3D profiling, and quality inspection systems with enhanced contrast and visibility.

🎬

Display & Projection

Laser projectors, light shows, and display systems leveraging the peak photopic response for maximum brightness perception.

🌡️

Spectroscopy

Raman spectroscopy, fluorescence excitation, and analytical instruments requiring precise green wavelength sources.

Why 555nm?

The 555nm wavelength represents the peak of the photopic luminosity function - the maximum sensitivity of the human eye under daylight conditions. This makes it appear significantly brighter than other wavelengths at the same power level:

  • Maximum perceived brightness per milliwatt
  • Ideal for daylight and well-lit environments
  • Superior visibility for alignment applications
  • Optimal contrast against most backgrounds
  • Standard wavelength for photometric calibration

Application Note

"The 555nm wavelength provides unmatched visibility for industrial alignment applications. In bright factory environments where other laser wavelengths become difficult to see, the G555D050 maintains clear visibility even at distances exceeding 100 meters, significantly improving worker efficiency and reducing alignment errors."

- Industrial Metrology Applications Guide

Features & Technology

Core Features

  • DPSS technology for reliable operation
  • Peak human eye sensitivity wavelength
  • Integrated NTC thermistor for temperature monitoring
  • Gold-plated brass housing for durability
  • Stable power output with ±5% typical variation
  • Multi-mode longitudinal operation
  • Linear polarization (100:1 ratio)
  • Low residual IR emission (<3%)
  • Compact form factor (Ø18mm × 55mm)
  • Wide operating temperature range
  • 5000 hour MTTF reliability
  • RoHS compliant construction
  • Class 3B laser safety rating
  • ACC power supply compatibility

Visibility Advantages

  • Peak photopic response
  • Maximum brightness perception
  • Excellent daylight visibility
  • Superior contrast ratio
  • Reduced eye strain
  • Long-range visibility

Technical Advantages

  • DPSS reliability
  • Temperature compensation
  • Low power consumption
  • Stable beam profile
  • Consistent wavelength
  • Minimal maintenance

DPSS Laser Technology

The G555D050 utilizes advanced Diode-Pumped Solid-State (DPSS) technology to achieve reliable 555nm output. This design provides exceptional wavelength stability and power consistency throughout the operational lifetime. The integrated NTC thermistor enables precise temperature monitoring and compensation, ensuring optimal performance across varying environmental conditions.

The 555nm wavelength corresponds exactly to the peak sensitivity of the human photopic vision curve, making this laser appear approximately 3.5 times brighter than a 633nm red laser and 2 times brighter than a 532nm green laser of the same power. This efficiency makes it ideal for applications requiring maximum visibility with minimal power consumption.

⚠️ Safety Information

Class 3B laser product. Avoid direct eye exposure. Use appropriate laser safety eyewear (OD 3+ @ 555nm). Follow all safety protocols per IEC 60825-1 and 21 CFR 1040.10. Maximum permissible exposure limits apply.

Resources & Integration

💿 Software & Drivers

Available upon request.

🔧 Technical Resources

Available upon request.

System Integration

Mechanical Interface
  • Ø18mm cylindrical housing
  • 55mm maximum length
  • Gold-plated brass construction
  • Front aperture beam output
  • Standard mounting compatible
Electrical Interface
  • 2VDC nominal operation
  • ACC power type
  • 20AWG LD power wires
  • 28AWG NTC sensor wires
  • 200mm wire length (customizable)
Temperature Management

The integrated NTC thermistor provides real-time temperature monitoring with 10kΩ resistance at 25°C. Proper heat sinking is required for optimal performance and longevity. The customer is responsible for implementing suitable thermal management based on application requirements.

Related Products