ФОТОПРОВОДИМОСТЬ 

The optical lamp consists of a neutral white, high-power LED incorporated into a plastic case with a stem. It is suitable for carrying out experiments in ray optics. Power is provided by means of a 5 V DC plug-in power supply adapter. ... еще

Resistance: 100 Ω (bright light) … 10 MΩ (dark) Max. power dissipation: 0.2 W еще

Slit with symmetric aperture, in black metal frame on stem. With micrometer screw. Holder: 130 mm dia. Slit width: 0-3 mm Slit height: 25 mm Shaft: 10 mm dia. еще

Holding rod with 4-mm connector sockets to accommodate and connect components with two plugs matching a 19-mm or 50-mm grid or conductor loops for verifying the Biot-Savart law. Suitable for both 4-mm laminated plugs as well as 4-mm safety ... еще

Lenses in black frame on stem. With a lens protection ring for preventing damage to the lens. Holder: 130 mm dia. Shaft: 10 mm dia. Focal length: +50 mm Diaphragm diameter: +150 mm еще

Precision glass polarisation filter, which is in a mounting on a steel rod and can be rotated on a ball-bearing. With angular scale marked in 1° intervals. Aperture: 38 mm dia. Extinction coefficient: >99.9 % at λ = 450 – 750 nm Height ... еще