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J10919 SERIES

J10919 SERIES
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FAC LENS OPTICAL (Fast-Axis Collimating Lens) LENS J10919 SERIES OVERVIEW The J10919 series FAC lens is an optical lens that collimates light spreading from a semiconductor laser (LD) in the fast-axis direction. LD have a large divergence angle in the fast-axis direction, so the output light cannot be efficiently used unless collimated. The FAC lens collimates light spreading from a LD into a narrow beam with a radiation angle of several milliradians (mrad) or less so that the diverging light can be efficiently utilized. COLLIMATING LIGHT Radiation angle spreading in elliptical cone shape FAC lens Laser emitting point Laser emitting point FEATURES ●Aspheric micro-cylindrical lens ●Highly efficient utilization of light from LD ●Small variations in characteristics allow mass production ●Minimized smile and side lobes due to high-precision fabricating technology OUTPUT DISTRIBUTION IMAGE WHEN INSTALLED TO LD A–A' PROFILE 100 RELATIVE INTENSITY (%) Radiation angle axis RADIATION ANGLE (mrad)

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SPECIFICATIONS Parameter Type No. Wavelength area Numeric aperture (NA) Material Refractive Index at 915 nm Effective focal length (EFL) Back focal length (BFL) Height (H) Width (W) Length (L) Efficiency Transmittance DIMENSIONAL OUTLINES (Unit: mm) W OUTPUT SURFACE LASER LIGHT INPUT SURFACE * See the above specification table for L, H and W. CUSTOMIZATION ●Changing wavelength area ●Changing focal length ●Changing length Please feel free to contact us for modification. Subject to local technical requirements and regulations, availability of products included in this promotional material may...

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