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PRECISION 75MM DIAMETER, 200MM FL BI-CONVEX LENS
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Item No: PL1144
Price: $9.00
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| Manufacturer's part #01 LDX 221. Made of grade A fine annealed BK7 glass, with an index of 1.5187 and a design wavelength of 546.1nm. Edge thickness is 3mm, center thickness is 9.5mm. Surface quality is pitch polished. Centration is 3 arc minutes. Symmetrical bi-convex lenses are made with the same curve on each side and are used to minimize coma and distortion. Unused, limited supply. |
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