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Examples of Investigation and
Measurement
Colour filters
The spectrum of a white light source will be dispersed by an optical
grating and can be observed on a screen. In the white light beam,
different colour filters will be placed and the change in the spectrum
will be observed and detected by a photodiode.
Neutral density filters
Intensity reduction over the whole spectrum is achieved by neutral
density filters. The overall reduction as well as dimming of a certain
colour is detected by a photodiode.
Interference filters
White light, sent through a pair of coated plates, shows colourful
interference stripes. Together with a colour filter a certain colour can
be selected which shows a more narrow spectrum than generated by the
colour filter only.
IR filters
Since the detector in use is sensitive to infrared light, a filtering
experiment of IR light with special IR filters can be performed.
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OXP-16 Required Equipment |
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1 |
02.1022 |
Carrier OCM 650, 20 mm with screen holder This module can mount optical screens. Through the attached carrier, the screen holder can be placed onto the optical rail. The carrier 20 mm and the holder are made out of special anodized aluminum. |
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2 |
02.1024 |
Carrier OCM 650, 20 mm with attached plate holder |
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| 1 |
02.1602
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Screen with scale |
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1 |
02.2126 02.2132 |
Mounting plate OCM 650 for click 25, including carrier
20 mm |
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1 |
02.6106 |
4 axis adjustment holder KH650, theta, phi, X and Y,
including carrier 20 mm |
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| 1 |
04.0060 04.0062 |
Plano convex
lens f=40
mm, mounted in click 30 mount |
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| 1 | 04.0192 |
Set of eight optical
filters |
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| 1 | 04.0630 |
Fabry Perot, mounted in click 25 mount
A pair of parallel semi-transparent
high quality mirrors in close contact act as a Fabry
Perot filter. The Fabry Perot is mounted onto a special
anodized aluminum click mount 25 mm by two threaded
mounting rings to be used in connection with a mounting
plate (02.2126). |
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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 1 |
05.0030 05.0040
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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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| 1 | 07.0010 |
BNC – Banana adapter
connection leads 2x4 mm plugs |
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| 1 | 07.0102 |
PIN Si Photodetector
BPX 61 complete with housing |
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| 1 | 07.0206 |
LDD-05 active power supply |
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| 1 | 19.0400 |
Digital multimeter 3 ˝ digits
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