Accessories For Optical Benches-Photometer, Grease Spot

The Following Accessories Are Available Optiolly For Use With Optical Benches As Per Cat. Nos. 1110920 Are Provided With Metal Support Rods For Their Vertical Mounting In The Riders. The Sizes Of The Components And Lengths Of The Respective Mounting Rods Have Been Designed To Provide A Common Optical Center. (Photometer, Grease Spot For Comparison Of Light Intensity. Comprises A Waxed Paper Screen With A Wax-Free Central Spot 16Mm Diameter Mounted In A Metal Frame With Central Aperture Of About 50Mm.)