• The LSM03 is Ideal for 1315 nm Imaging Systems
• 5X Magnification
• Constant Magnification Over Entire Field of View
• Constant Spot Size and Flat Image Plane
• Excellent Coupling Efficiency

Thorlabs' LSM03 scan lens is a 5X telecentric objective that is ideal for use in laser scanning applications like Optical Coherence Tomography (OCT) and other laser imaging systems since it enables a flat imaging plane when used in applications that scan the laser across the sample being imaged. A flat imaging plane minimizes image distortion, which in turn allows for the creation of geometrically correct images without the need for extensive post image processing. The LSM03 telecentric scan lens also maximizes the coupling of the light scattered or emitted from the sample (the signal) into the detection system. In addition, the spot size in the image plane is nearly constant over the entire FOV so that resolution of the image is constant. The LSM03 scan lens has an AR coating designed to minimize back reflections from broadband light sources with a central wavelength of 1315 nm (a popular wavelength for OCT systems).

Dispersion compensating blocks have also been added to our product line to help compensate for dispersion up to second order. Most of these blocks also have an AR coating for the 800 - 1400 nm wavelength range.

• Magnification: 5X
• Center Wavelength: 1315 nm
• Wavelength Range: ±65 nm
• Effective Focal Length: 35.98 mm
• Lens Working Distance: 25.1 mm
• Scanning Distance: 18.9 mm
• Pupil Size (1/e²): 4 mm
• Depth of View: 0.58 mm
• Field of View: 9.4 x 9.4 mm
• Parfocal Distance: 50.6 mm
• Mean Spot Size (1/e²): 25 µm
• Scan Angle: 7.5°