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Optical Components

TOP® CollimatorsTOP® Collimators

TOP® Collimators

TOPRAYS offers a range of collimators and focusing beam-shaping devices designed for optical systems, covering a wide wavelength range. The product line includes three convenient sizes to suit fibers of different dimensions: small for fibers up to 400 µm, medium for fibers up to 800 µm, and large for larger fibers. Notably, medium and large collimators and focusing devices are fully interchangeable.

Lens Materials

Glass Lens (BK-7)UV-grade Fused Silica Lens
Made from high-quality optical glass for applications from 350 to 2000 nm. BK-7 lenses are stable in temperature-sensitive environments and compatible with most chemical conditions, making them a cost-effective alternative to silica lenses.For applications requiring deep-UV transmission down to 190 nm, our UV-grade fused silica lenses excel. They offer outstanding radiation resistance and maintain excellent performance in demanding conditions.

Outline Dimensions

DeviceLengthDiameterMaterial
Small Collimator23.50 mm6.35 mmStainless steel
Small Focusing Device6.35 mm6.35 mmStainless steel
Medium Collimator40.64 mm19.00 mmAnodised aluminium
Medium Focusing Device12.70 mm19.00 mmAnodised aluminium
Large Collimator59.18 mm31.75 mmAnodised aluminium
Large Focusing Device25.40 mm31.75 mmAnodised aluminium

Model Specifications

Small: lens diameter 5 mm / clear aperture 4.0 mm

FunctionBK-7 lens modelFocal Length (mm)Quartz lens modelFocal Length (mm)
CollimatorCOL-SMA-BK7-5.0mmN/ACOL-SMA-SIL-5.0mmN/A
Focusing DeviceFD-SMA-BK7-5.0mm-F55FD-SMA-SIL-5.0mm-F1010
Focusing DeviceFD-SMA-BK7-5.0mm-F1010FD-SMA-SIL-5.0mm-F1515
Focusing DeviceFD-SMA-BK7-5.0mm-F1515FD-SMA-SIL-5.0mm-F2020

Medium: lens diameter 12.7 mm / clear aperture 10.0 mm

FunctionBK-7 lens modelFocal Length (mm)Quartz lens modelFocal Length (mm)
CollimatorCOL-SMA-BK7-12.7mmN/ACOL-SMA-SIL-12.7mmN/A
Focusing DeviceFD-SMA-BK7-12.7mm-F2020FD-SMA-SIL-12.7mm-F2020
Focusing DeviceFD-SMA-BK7-12.7mm-F2525FD-SMA-SIL-12.7mm-F2525
Focusing DeviceFD-SMA-BK7-12.7mm-F4040FD-SMA-SIL-12.7mm-F4040

Large: lens diameter 25.4 mm / clear aperture 22.2 mm

FunctionBK-7 lens modelFocal Length (mm)Quartz lens modelFocal Length (mm)
CollimatorCOL-SMA-BK7-25.4mmN/ACOL-SMA-SIL-25.4mmN/A
Focusing DeviceFD-SMA-BK7-25.4mm-F4040FD-SMA-SIL-25.4mm-F4040
Focusing DeviceFD-SMA-BK7-25.4mm-F5050FD-SMA-SIL-25.4mm-F5050
Focusing DeviceFD-SMA-BK7-25.4mm-F7575FD-SMA-SIL-25.4mm-F7575