Reference: Lab Experiments Journal vol-9, No.3, Page-212
Numerical aperture & acceptance angle
Model: NA-201
Experiment(s):
Determination of numerical aperture and acceptance angle of OFC
Specifications
1. X-Y Bed
Bed length: 220 mm Screen: 35 mm dia Graduations on screen: 2 mm Movement: Course and fine using screw movement
2. Laser
Type: Semiconductor diode Laser Wavelength: 625 nm (Red) Output Power: 3 mW Mount: Cast iron base with leveling screw Power supply Output: Suitable for 3 mW & 5 mW semiconductor Lasers Rated Input: 220 V/50 Hz or 110 V/60 Hz
3. Optical Fibre Cable (OFC)
Length: 1.5 m or 3 m (any one) Core dia of the cable: 0.5 mm