Focusable 650nm 5mW Red Straight Line Laser Module

The Focusable 650nm 5mW Red Straight Line Laser Module—a compact, high-precision optical component engineered for alignment, calibration, and positioning tasks across industrial, DIY, and scientific applications. Featuring a ultra-straight, uniform line beam, stepless focus adjustment, and eye-safe low-power output, this module delivers reliable optical guidance for scenarios requiring linear reference and precise spatial alignment.

Core Advantages of the Red Straight Line Laser Module

650nm Red Straight Line Beam: High Uniformity & Visibility

• 650nm (±5nm tolerance) red light boasts excellent naked-eye visibility and low ambient light interference, standing out clearly against metal, plastic, wood, and glass surfaces—ideal for both indoor calibration and outdoor alignment tasks.
• Standard straight line laser beam with high linear uniformity; focusable line width ranges from 1mm (fine focus, 0.5m distance) to 10mm (broad focus, 10m distance). The beam maintains a straight, non-distorted profile across the entire working range, eliminating alignment errors caused by beam bending or fading.

Stepless Focus Adjustment: Adaptive to Diverse Distance Needs

• Built-in precision focus ring with a focal distance range of 0.5m–10m, enabling tool-free tuning of line width for different application scenarios:
• Broad focus (1mm line width): For wide-area alignment tasks like conveyor belt leveling, cabinet installation reference, and laser level auxiliary line projection.
• No additional optical accessories required—rotate the focus ring to achieve the desired line width in seconds.

Eye-Safe Low-Power Output: Stable & User-Friendly

• 5mW CW output with ≤±1% power fluctuation over 24 hours (25°C), ensuring consistent line brightness and avoiding drift-induced alignment errors during long-duration operation.
• Class 2 laser safety compliance (IEC 60825-1): The low power output poses no risk of permanent eye damage, eliminating the need for protective goggles in workshop, lab, or home DIY environments.
• Ultra-low power consumption with 3V–5V DC wide-voltage input, compatible with battery-powered portable devices (e.g., handheld alignment tools) and extending runtime by 30% compared to higher-power alternatives.

Key Applications 

• Industrial Calibration & Aiming: Machine tool spindle positioning, conveyor belt alignment, SMT pick-and-place machine component targeting, and robotic arm path calibration.
• Optical Instrument Debugging: Telescope, microscope, and laser rangefinder optical axis alignment; camera lens focus calibration and distortion correction.
• Consumer & Portable Devices: Aiming scope accessories, DIY positioning tools, drone target marking systems, and laser level auxiliary reference sources.
• Scientific Research: Optical experiment spatial reference, surface topography measurement auxiliary, and lab equipment alignment calibration.
• Medical Device Tuning: Surgical instrument positioning, medical imaging equipment calibration, and dental tool alignment (safe Class 3R operation for clinical environments).