Newtons Ring Apparatus Model: LEOK 30

Newtons Ring Apparatus Model: LEOK 30

Brand: Lambda Scientific

Origin: USA

Model: LEOK 30

The phenomenon of Newton's rings, named after Isaac Newton, is an
interference pattern caused by the reflection of light between two sur-
faces - a spherical surface and an adjacent flat surface. When viewed
with monochromatic light, it appears as a series of concentric, alter-
nating light and dark rings centered at the point of contact between
the two surfaces. Using this apparatus, students can observe the phe-
nomenon of equal-thickness interference. By measuring interference
fringe separation, the radius of curvature of the spherical surface can
be calculated.

Specifications
Note: above product information is subject to change without notice.

Minimum Division of Reading Drum
0.01 mm
Magnification
20x, (1x, f = 38 mm for Objective; 20x, f = 16.6 mm for Eyepiece)
Working Distance
76 mm
View Field
10 mm
Measurement Range of Reticle
8 mm
Measurement Accuracy
0.01 mm
Sodium Lamp
15 ± 5 V AC, 20 W
Radius of Curvature of Newton's Ring
868.5 mm
Beam Splitter
5:5

Part List
Main apparatus with beam splitter
1
Power supply for Sodium lamp (LLE-1/2)
1
Sodium bulb
1
Reading Microscope
1
Newton's Ring Assembly (SZ-37B)
1
Power cord
1
Instructional manual CD
1

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