PB Phase Lens LFL2050-633
JCOPTIX liquid-crystal-polymer PB phase lenses combine one UV fused-silica flat window and polymer film to minimize spherical aberration. A side arrow V marks input direction and points toward the polymer face; avoid hard contact. Circular input focuses/diverges according to handedness, emerging circular with opposite handedness. Elliptical/linear input distributes energy between ±1 orders according to circular-component ratios. Custom focal length, wavelength, size and retardance available.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Optical element material | Liquid crystal polymer and UV fused silica windows |
| Operating Wavelength | 633 nm |
| Focal Length | 50.0 mm |
| Clear Aperture | Ø20.0 mm |
| f | 2.5 # |
| Decentration | <3 arcmin |
| Diffraction Efficiency | >98% |
| Element Dimensions | Ø24.0 mm×1.6 mm |
| Diameter Tolerance | +0.00/-0.05 mm |
| Thickness Tolerance | ± 0.05 mm |
| Coating R_avg [350-700 nm; 0° angle of incidence] | Antireflection Coating: 350-700 nm, R_avg<0.5% (0° Incidence) |
| Transmittance | >94% |
| Transmitted Beam Deviation | < 3 arcmin |
| Surface quality (scratch/dig) | 60/40 |
| Operating Temperature | -20-60 ℃ |
| Surface parallelism | < 3 arcmin |
| Focal Length Tolerance | ± 1% |
| Damage Threshold [515 nm, 10 Hz, 202 fs, Ø113 µm] | 0.1 J/cm² (515 nm, 10 Hz, 202 fs, Ø113 µm) |
Key Features
Datasheet
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