Astronomy Services

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L & L Optical Services offers the highest quality thin film coatings available, providing the Astronomical Telescope community with three aluminum coatings for your primary and secondary mirrors. Over thirty years of experience in designing and developing coating processes for a wide range of applications enable us to meet and exceed our clients' expectations.

Graphs:
Protected Aluminum
Semi-Enhanced Aluminum
Enhanced Aluminum
Visibleband Dielectric

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PROTECTED ALUMINUM

Aluminum coating with a Silicon Monoxide overcoat. This coating achieves a reflection of 89% and meets specifications of MIL-M-13508C.

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SEMI ENHANCED ALUMINUM

Aluminum coating with a Silicon Dioxide/Silicon Monoxide overcoat. This coating achieves a reflection of 93% and meets specifications of MIL-M-13508C.

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ENHANCED ALUMINUM

Aluminum coating with a Silicon Dioxide/Tantalum Pentoxide overcoat. This coating achieves a reflection of 96% and meets specifications of MIL-M-13508C.

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VISIBLEBAND DIELECTRIC

All Dielectric coating made to last the lifetime of your secondary.
This coating has an average reflection of 98% from 420nm to 650nm.
The coating meets all specifications of Mil-C-675C.