Technical data

Lambert's law of radiation on optical base plate

Article no: P2240411

Principle

Visible light impinges on a diffusely reflecting surface. The luminance of this surface is determined as a function of the angle of observation.

Benefits

Study the light intensity that a sheet of paper is diffusely reflecting
Learn about the different physical units associated with light
Very versatile optical base plate

Tasks

The luminous flux emitted reflected by a diffusely reflecting surface is to be determined as a function of the angle of observation.
Lambert's law (cos-law) is to be verified using the graph of the measurement values.

Learning objectives

Luminous flux
Light quantity
Light intensity
Illuminance
Luminance

Scope of delivery

Optical base plate 450 x 600 mm	08750-00	1
YAG Laser green, 1 mW, 532 nm for component holder	08767-99	1
Adjusting support 35 x 35 mm	08711-04	2
Surface mirror 30 x 30 mm	08711-01	2
Magnetic foot for optical base plate	08710-00	1
Component holder	08043-00	2
Lens made of glass, biconvex, f = + 100 mm	08051-00	1
Universal Holder, rotational	08040-02	1
Rotational guide rail with angular scale	08717-00	1
Photoelement	08734-00	1
PHYWE Universal measuring amplifier	13626-93	1
PHYWE Digital multimeter, 600V AC/DC, 10A AC/DC, 20 MΩ, 200 µF, 20 kHz, −20°C…760°C	07122-00	1
Connecting cable, 32 A, red, various lengths	07361-01	2
Accesory set for optical base plate	08750-50	1
Ring for component holder	08044-00	2