Optics step windows are either windows or plates ground with a step into the edge or length of the glass. This step can allow for rings or sealant, useful for sealing into housing or mechanical assembly. The step windows are made from a wide range of materials including BK7, Fused Quartz, Borosilicate, Sapphire & many crystal materials. In fact all materials can be engineered in this way subject to thickness. Additional bevels can be ground to the step for assembly and handling. Angles can also be produced to create angled cones or an angled ground step.
Material:
UV Fused Silica, Borosilicate, Float glass (plate finish) & Sapphire
Dimension Tolerance:
+0.00/-0.10mm
Thickness Tolerance:
± 0.10mm
Edge Finish:
Fine Ground
Surface Flatness:
3-5 Fringes (@633nm)
Surface Quality:
60/40 Scratch/Dig
Parallelism:
≤ 5 Arc mins
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