Light Speed Meter

The Light Speed Meter is an equipment set for determining the speed of light, thanks to electronic run-time measurement. The set comprises a compact housing containing a transmitter emitting short LED pulses, a photo receiver and a calibrated, oscillating quartz generator that produces chronologically precise square-wave pulses. 

Emitted light pulses are returned by an internal reflector and by a triple-prism reflector placed a long distance from the light source. The returning light signals are then superimposed on the original signal. A dual-channel oscilloscope is used to measure the time difference between the two signals, and the speed of light can be calculated from this difference and the distance to the triple-prism reflector. The triple-prism reflector itself can be installed by eye without the need for complex adjustments.

Features of the Light Speed Meter

• Equipment set for determining the speed of light
• Emitted light pulses are returned by an internal reflector and triple-prism reflector
• Triple-prism reflector can be installed by eye, without needing complex adjustment
• Combine with an oscilloscope and optical bench/rider for maximum results

Contents of the Equipment Set

• 1 x  Control unit with a transmitter, receiver and integrated power supply unit
• 1 x  Fresnel lens on shaft
• 1 x Triple-prism reflector on shaft
• 3 x  HF cables, 1m

Required Equipment

• Digital Oscilloscope
• Optical Bench
• Optical Rider (x2)
• Stand Equipment

Delivery Information

The Light Speed Meter is usually delivered within 3 to 5 working days of ordering via UPS courier.

If you would like up to the minute delivery and tracking information for your order, please contact the Lab World Customer Care Team by telephone on 020 7501 1105 or by email using the form below. We look forward to helping you with your enquiry.