Class Set Optics 2.0

Experimental Study of Ray Optics with LED and Laser

School level: Secondary education
Number of students: 12–18 students in 6 parallel working groups of 2–3 students
Use: Student experiments on ray optics in small groups

The Class set Optics 2.0 enables students to carry out experiments on key topics in ray optics in six parallel working groups. The RiSu-certified student light source combines an LED and Class 1 laser in a single unit. Thanks to the LED's very low heat generation, the experiments can also be carried out in rooms that are not darkened.

The experiments cover shadow formation, reflection and the law of reflection, refraction and Snell's law, Fermat's principle, as well as ray paths through convex and concave lenses. Further experiments deal with determining the focal point and splitting LED light into its spectral colours using a prism.

High-quality optical components and a universal mirror with parabolic concave, spherical concave, spherical convex and plane reflecting surfaces enable a variety of experimental setups. A measuring sheet with an angular scale allows the angles of incidence and reflection to be read directly.

Student worksheets are also available as editable Word files for free download. Each experiment includes an equipment list, instructions for conducting the experiment, evaluation materials and practical tips. A comprehensive guide supports the preparation and performance of the experiments.

The picture shows a red case set containing various optical elements and accessories for experiments in education. The parts are neatly arranged in foam, allowing for easy access and transport.
The picture shows a red case set containing various optical elements and accessories for experiments in education. The parts are neatly arranged in foam, allowing for easy access and transport.
The picture shows a red case with an experiment kit for optics, which contains various lenses and prisms. Instructions in the form of a booklet are also included to support the conduct of experiments.
The picture shows a manual for the “Optics 2.0” experiment set from Cornelsen Experimenta, which deals with various optical phenomena. It includes topics such as light propagation, reflection, refraction and color decomposition.
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The picture shows an experimental device with a switch for a laser and an LED, which is stored in a padded box. Next to the device, batteries and other materials for experiments in the educational field are visible.
The picture shows a set of optical experiment materials arranged in a protective foam section of a red box. It contains several reflective and transparent lenses and a dimension sheet to support experiments in the educational field.
The image shows an arrangement of transparent geometric shapes placed in a textured foam insert. These materials can be used for experimental purposes in education to illustrate physics concepts.
The image shows an overview of experimental materials, particularly optical bodies, used in an educational set for schools. In the illustration, the different shapes and elements are numbered and listed, including safe usage instructions.
The image shows a page from a textbook on ray optics that deals with Fermat's principle. It contains information about an experiment, materials, and a sketch that illustrates the application of the principle.
The picture shows experiment material for teaching, including a device for controlling a laser and an LED. Next to it is a battery compartment and two batteries that are needed to operate the device.
The picture shows an experiment set with a laser device and instructions describing how to carry out an experiment on shadow formation. On a white sheet of paper there is a red toy or token on which the light from the laser is projected.
The picture shows two students working on an experimental project with a student lamp that contains lasers and LEDs. Various devices and materials are displayed on the table while the students interact with each other in a concentrated and engaged manner.
The picture shows an experiment kit called "Optik 2.0" from Cornelsen, which contains various optical accessories. The elements included include a laser, an LED, lenses, batteries and instructions for experiments in the field of optics.
The image shows a transparent optical element that interacts with a light beam and refracts or reflects light rays. It is placed in an experimental setup designed for educational purposes.
The picture shows an experimental device with a laser and a lens that creates a pattern of light rays. Next to the device are two batteries that are used to supply energy.
The picture shows an optical experimental device consisting of two transparent elements that refract or direct light. The light beam is sent through the materials, making various light phenomena visible.
The image shows a page from an experiment book that deals with reflection from curved mirrors. It contains a table for recording angles of incidence and reflection as well as definitions of different mirror shapes such as convex and concave.
The picture shows a page from a teaching material on ray optics that describes an exercise on the refraction of light. It contains information on the materials required and instructions on how to carry out the experiment using a student lamp and optical bodies.
The picture shows a transparent prism lying on a worksheet containing diagrams of the refraction of light rays. Red laser lines illustrate the path of the light through the prism and the corresponding angles at points A, B and C.
The picture shows an experimental device with a control box and a laser beam that is projected onto a measuring sheet with a semicircle and scales. Next to the box there is a battery compartment to power the device.
The picture shows a high-quality optical lens in the form of a prism through which a red laser beam is projected. Next to it is an experimental device and a worksheet with diagrams and lines for investigating light refraction and reflection.
The picture shows a universal mirror divided into different shapes: spherical convex, spherical concave and flat. It can be used to create caustics and focal points, which makes it suitable for educational experiments.

item number 47545

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Video: (c) Cornelsen Experimenta GmbH

With the laser and the LED of the student lamp as well as the associated worksheet, the formation of shadows as a stitching optics is investigated.


The law of reflection is discovered with the laser of the student lamp on the measuring table.


The reflection of a parallel beam of light is reflected convex spherically, concavely spherically and concave parabolically on the surfaces. The test is carried out as a stitching optics.


The transition of light from air to glass is investigated. Snellius's law of refraction is discovered and the refractive index of air in glass is determined experimentally.


In this experiment, the principle of Fermat with a stitching optics is discovered.


The refraction of light in different bodies is constructed in a stitching optic and then controlled with the laser of the student lamp.


The beam paths through convex and concave lenses are examined as stitching optics.


In two partial tests, the focal points of a cut-collecting lens with the stitching optics are first determined. The focal point of a lens on the optical bench is then measured.


The light of the LED is broken down into its spectral colors with a prism. The test is carried out as stitching optics.


  • 6 × Student lamp LED/LASER
  • 6 × Colour filters, primary red, green, blue
  • 6 × Power supply unit, 3 V/1 A
  • 6 × Set of 6 optical bodies
  • 3 × AA battery, 1.5 V, alkaline
  • 6 × Screen, white, with scale
  • 6 × Prism, equilateral, 25 x 25 mm
  • 6 × Universal mirror
  • 6 × Cross base
  • 1 ×
  • 6 × Battery holder
  • 1 ×
  • 1 ×
  • 1 ×

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