This eyepiece, called 'Fresnel Eyepiece', allows the measurement of optical phenomena of very small dimensions.
It is driven by a lateral movement device with a vernier, allowing the operator to measure figures with an accuracy of 0.01 mm.
- Displacement: 25 mm
- Vernier precision: 1/100th of a mm
- Dimensions: 90x45 mm
- Eyepiece: 10x with focus
- Eyepiece graduations: cross + 1/10th of a mm
- Holding: rod Ø 10 mm - L 100 mm