In light pipes light enters and reflects from the walls, at the glass-air boundary an indeterminate number of times until it emerges. Fused silica and BK7 will absorb in some parts of the electromagnetic spectrum. Designed to channel light from one end to the other through TIR (Total Internal Reflection), light pipes are also called homogenizers, waveguides and integrator bars.
The amount of absorption depends on:
Light Pipe Specifications:
| Material | BK7 or fused silica (other optical materials also available) | |
| Dimensional Tolerances | Length: ± 0.1 mm typical | |
| Ends: ± 0.05 mm typical | ||
| Surface Scratch/Dig | 60/40 or as required | |
| Clear Aperture | All edges sharp | |
| Edge Chips | Less than 0.1 mm or as required | |
| Parallelism | Less than 3 arc minutes |
Rectangular and tapered light pipes are available in a variety of custom sizes. Please call or email for a quotation to meet your specifications.
Return to Home Page: Fused silica and fused quartz substrates and wafers
Aluminum nitride Fused quartz Fused quartz properties Optical glass Optical technology Polished substrates Sapphire refraction index Small optical windows Stock wafers Wafer dicing
Updated: 27 September 2008
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