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Quarter-Wavelength Filter on Stem, 1021353 [U22023], 광학 도구 및 고정대

Quarter-Wavelength Filter on Stem

Item: 1021353 [U22023]
Retardation plate (λ/4 platelet) made of plastic foil, rotatable on a ball-bearing in a holder on a stem. With an angle scale possessing 1° increments. Aperture:                    ... more
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