These probes are primarily used to collimate the diverging output from an Oriel^® Fiber Bundle. We offer dedicated probes to collimate the output from our liquid light guides.
Move the fiber bundle away from the lens to produce a focused image ; to image at short distances use a focusing probe.
The 77644 Probe has a fused silica, 19 mm effective focal length lens. It captures and collimates the output cone from fused silica bundles. The 77645 has a low F/# compound glass lens with an 11 mm effective focal length. It collimates the highly divergent output from glass bundles, and transmits over their useful spectral range.

These probes are primarily used to collimate the diverging output from an Oriel^® Fiber Bundle. We offer dedicated probes to collimate the output from our liquid light guides.
Move the fiber bundle away from the lens to produce a focused image ; to image at short distances use a focusing probe.
The 77644 Probe has a fused silica, 19 mm effective focal length lens. It captures and collimates the output cone from fused silica bundles. The 77645 has a low F/# compound glass lens with an 11 mm effective focal length. It collimates the highly divergent output from glass bundles, and transmits over their useful spectral range.