NEW NEW Lens clock 28 MEASURING INSTRUMENTS 2.7 ALL RIGHTS RESERVED © LAB MOD SYSTEM FRAME PARTS LAB CONSUMABLES TOOLS PLIERS EQUIPMENTS LENSES REFRACTION & ORTHOPTIC INDEX Example 1 LENS CURVE READINGWITH SCALE n=1.523 External lens surface (positive): +4.0 dpt = BASE 4 Example 2 OPTICAL POWER READING WITH SCALES n=1.523 and n=1.70 External lens surface (positive): +4.0 dpt Internal lens surface (negative): –2.0 dpt = Optical power: +2.0 dpt Ref. 04983 LENS CLOCK WITH HARDENED BALL TIPS The lens clock measures the lens curve (base) and determines the optical power of the lens. Measuring range: 0 - 20 dioptres Double scale for refraction index: n=1.523 and n=1.70 Ref. 04951 THICKNESS GAUGE WITH HARDENED BALL TIPS Measuring range: 0-10 mm Jaw depth: 35 mm Reading: 0,05 mm Thickness Gauge
RkJQdWJsaXNoZXIy MjczNTY0