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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.
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OXP-15 Required Equipment |
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| 1 |
02.1022
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Carrier OCM 650, 20 mm with screen holder |
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| 3 |
02.1024
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Carrier OCM 650, 20 mm with attached plate holder |
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| 1 | 02.1601 |
Screen Experimental results
like colour spectra and interference patterns can be
visualized on these screens. Horizontal or vertical
scales allow calibrations and quantitative measurements;
a screen with an aperture is used for observing
back-reflected rays. The screens are made out of
anodized aluminum plates with one side painted white and
can be fixed onto screen holders (02.1022, 02.1608). |
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3 1 |
02.2132 02.2150 |
Mounting plate OCM
650 for click 30, including carrier 20 mm Mounting plates are
used to hold optical mounts. A characteristic feature of
the mounting plates is the “click” mechanism of the
inserts based on spring loaded spheres. Snapping in the
groove of the inserted click mount, the optical element
is kept in an exact position. On the other hand, the
system allows a quick and easy change of the mounted
inserts. |
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| 1 | 02.2202 |
Filter plate holder FH 650, for 3 filters 50 x 50 x 3 mm, including carrier 30 mm The holder can support a total of three filter plates with the dimension 50 x 50 mm. The maximum thickness of the filters can be 5 mm. Lateral springs fix the filters within the holder. The holder and the carrier 30 mm are made out of special anodized aluminum and can be placed onto an optical rail. |
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3 |
02.6106 |
4 axis adjustment holder KH650, theta, phi, X and Y,
including carrier 20 mm |
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| 1 | 04.0054 |
Biconvex lens f=150 mm, mounted on click 50 mount Different glass lenses are mounted onto a
special anodized aluminum click mount 50 mm by two
threaded mounting rings to be used in connection with a
mounting plate (02.2150). |
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3 1 |
04.0060 04.0062 |
Plano convex lens f=40, mounted in click
30 mount |
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| 1 | 04.0190 |
Set of five optical filters This set of filters comprises of one high-
, one low-, one band-pass filter and two band-block
filters and can be fixed onto a plate holder (02.1024). |
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| 1 | 04.0702 |
Optical grating, 600 lines / mm This optical grating
copy mounted between two glass plates is used for
generating a spectrum of the investigated light. |
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| 1 | 04.0810 |
Set of four slides The superposition of
three coloured beams filtered by three black and white
masks results in a colour picture. The fourth mask is a
colour slide used for filtering out different colours.
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1 1 1 1 |
05.0030 05.0032 05.0036 05.0038 |
LED white in housing
As universal and
easy-to-change light sources, LED lamps are used in
optical experiments. The LEDs are mounted onto a 40 mm x
25 mm diameter housing tube made out of special anodized
aluminum. For the alignment, the lamps can be fixed onto
a four axis adjustment holder mounted onto a carrier.
For their operation, the active LDD-05 power supply
(07.0206) is required which controls the output power.
For the lamps 1 W (white LED: 3W), high brightness LEDs
are used. |
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| 3 | 07.0206 |
LDD-05 active power supply |
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| 1 | 09.2510 |
Angle joint mount OCM 650
cross-piece, modified with dichroic plates By combining three optical paths, this unit can connect four optical rails and is equipped with two dichroic beamsplitter plates mounted onto rotatable posts. |
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