The name refers to the lens's ability to produce a spot displacement proportional to the scan angle (theta) multiplied by the focal length (f), resulting in a constant scan velocity.
F-Theta Laser Scan Lenses Component Intelligence
Precision scan lenses for flat-field laser processing systems.
What are F-Theta Laser Scan Lenses components?
F-Theta lenses are specialized scan lenses designed to maintain a flat image plane and constant scan velocity across the entire field. They are critical for laser marking and cutting, ensuring uniform spot size and intensity without requiring dynamic focus adjustment.
How to Choose F-Theta Laser Scan Lenses Components
Selecting the correct F-Theta lens requires balancing optical performance with mechanical constraints.
Wavelength Matching
Ensure the lens coating is optimized for your laser source (e.g., 1064nm, 532nm, or 355nm) to prevent damage and maximize throughput.
Scan Field Size
Match the lens scan field to your work area; larger fields often require longer focal lengths, which increase the minimum achievable spot size.
Working Distance
Verify the effective focal length and working distance to ensure the lens fits within your existing laser head and enclosure constraints.
Aperture Size
The clear aperture must accommodate the incoming laser beam diameter to prevent clipping and thermal damage to the lens housing.
Telecentricity
Choose telecentric lenses if your application requires the laser beam to strike the surface perpendicularly across the entire scan field.
Popular F-Theta Laser Scan Lenses Components
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