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| PREC OPTICS-BEAM EXPANDERS |
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PRECISION 6X FOCUSING BEAM EXPANDER FOR 750-850NM
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Item No: PM1042
Price: $342.50
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| Manufacturer's part #06 GBF 001. Original price: $3000+. Expansion ratio of 6x, wavelength range is 750-850 nm. Beam Diameter in: 8mm, out: 48mm. 59mm diameter lens, anodized aluminum barrel is 140-146mm long. Beautifully coated! These are used to reduce natural beam divergence, and they achieve uniform coherent illumination over a wide area. Adjustable focus from 2 meters to infinity which allows perfect collimation throughout the wavelength range and enables focusing to a diffraction limited spot at extended distances. Unused, complete with original wood case and front and rear lens caps!! |
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