OXP-15 Colour Mixing  

Topics

Primary / Secondary Colour
Additive / Subtractive Colour Mixing
Absorbance
Transmissivity


Examples of Investigation and Measurement

Additive colour mixing
First the light of three LEDs emitting different colours is superimposed on a screen. By changing the intensity of the sources a huge variety of colours can be generated. In the next step a grey scale mask is inserted in front of each LED. The spatially filtered beams are overlaid on the screen and generate a colour image.

Subtractive colour mixing
An arrangement of two or more colour filters in combination demonstrates the principle of subtractive colour mixing. By use of a diffraction grating the resulting colour can be spectrally resolved.
 
 


Required Equipment

Cat. No.      Qty.   Description
02.0300       3      Profile rail, 300 mm
02.0500       1      Profile rail, 500 mm
02.1022       1      Screen holder, carrier 25
02.1024       3      Plate holder, carrier 25
02.1601       1      Optical screen, 80x65
02.2132       3      Mounting plate, click 30, carrier 20
02.2152       1      Mounting plate, click 50, carrier 20
02.2202       1      Filter plate holder for 3 filters, carrier 30
02.6106       3      Adjustment holder, 4 axes, carrier 20
04.0054       1      Biconvex lens f=150 mm, 40, click 50
04.0060       3      Plano convex lens f=40 mm, 25.4, click 30
04.0062       1      Plano convex lens f=60 mm, 25.4, click 30
04.0190       1      Set of five optical filters
04.0702       1      Optical grating, 600 lines / mm
04.0810       1      Set of four slides
05.0030       1      High brightness LED lamp, white
05.0032       1      High brightness LED lamp, red
05.0036       1      High brightness LED lamp, green
05.0038       1      High brightness LED lamp, blue
07.0206       3      Active power supply LDD-05
09.2510       1      Angle joint mount, cross-piece, dichroic plates