"water bath"

This laser ray box has several modes, with 1, 3, or 5 beams.

Laser diode of protection classification II with 1 m connector lead and barrel connector for connecting ultrasonic cw generator.

This laser ray box uses cylindrical LED lenses to focus the beam.

Perform many different lessons around reflection, refraction, diffraction, and interference.

This kit uses a compact yet powerful laser ray box, which has bright and well-defined rays perfect for classroom use.

This set has been designed for simple and clear demonstration of the principles of geometrical optics - transmission, reflection and refraction.

Efficiently illustrates the various types of diffraction.

An advanced laser ray box that clearly demonstrates the optical axis.

Classical demonstration of refraction and internal reflection.

Students can measure and study refraction of light.