American Owned & Operated
Esco Optics is a leading manufacturer of custom and catalog optics, precision optical components, and ITAR optics in the United States.
Esco Optics witness samples used for transmission are precision polished on both sides to a scratch dig of 60-40. Flatness of each side is < 1 wave @ 633nm at 80% CA. Parallelism < 1 arc min. Edges are safety beveled. Witness sample diameter is 25.40mm and the thickness is 1.50mm.
All of our witness samples are melt lot controlled and individual melt data is available on request. The refractive index values listed are representative of nd at 587nm.
|Diameter||25.40 mm +\-0.10|
|Thickness||1.50 mm +/-0.25|
|Flatness||< 1 wave @ 633nm|
|Surface Quality||60-40 scratch-dig|
|Edges||Fine ground and beveled|
|Materials||S-BSM2, S-NBM51, S-BSM4, S-PHM52, F2, N-SF2, S-LAL7, N-SF5, S-LAL18, LAFN7, S-TIH4, S-TIM35, N-SF11, S-TIH3, SF 11,|
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As the leader for military and defense optics in the United States, Esco Optics adheres to the International Traffic in Arms Regulations.
ITAR registered and compliant, Esco manufactures ITAR optics for all of its customers with the strictest confidentiality.