|
|
||||||||||||||
|
|
|||||||||||||||
|
|||||||||||||||
Examples of Investigation and
Measurement
Lambert Beer Law
In a first measurement the influence of absorbing material on the
intensity of transmitted light is investigated. Parameters like
thickness of the sample or the wavelength of the light source are varied
and the transmission is detected by a photodiode.
Absorption spectrum
With a white light source and an optical grating the spectral
distribution of the absorption profile is visualized and can be
observed.
Fluorescence spectrum
Slight changes in the set-up allow the excitation of fluorescing samples
with LEDs of different wavelengths. The spectra of absorption and
fluorescence are investigated by means of an optical grating.
Phosphorescence
A phosphorescing sample is tested for its wavelength sensitivity. With a
photo detector the phosphorescence decay is measured as a function of
time.
|
OXP-17 Required Equipment |
|||||||||||||||||||
|
|
|
|
![]() |
||||||||||||||||
|
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. |
![]() |
||||||||||||||||
|
2 |
02.1024 |
Carrier OCM 650, 20 mm with attached plate holder |
![]() |
||||||||||||||||
| 1 |
02.1602
|
Screen with scale |
![]() |
||||||||||||||||
|
1 |
02.2126 02.2132 |
Mounting plate OCM 650 for click 25, including carrier
20 mm |
![]() |
||||||||||||||||
|
1 |
02.6106 |
4 axis adjustment holder KH650, theta, phi, X and Y,
including carrier 20 mm |
![]() |
||||||||||||||||
| 1 |
04.0060 04.0062 |
Plano convex
lens f=40
mm, mounted in click 30 mount |
![]() ![]() |
||||||||||||||||
| 2 | 04.0104 |
Phosphorescing sample in click 25 mount With this element, the
wavelength sensitivity as well as the time dependent
decay of a phosphorescing sample can be investigated. A
sample of phosphorescing material 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). |
![]() |
||||||||||||||||
| 1 | 04.0194 |
Set of 3 fluorescent
filters |
![]() |
||||||||||||||||
| 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. |
![]() |
||||||||||||||||
|
1 1 |
05.0032 05.0036 05.0038
|
LED red 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. |
![]() |
||||||||||||||||
| 1 | 07.0010 |
BNC – Banana adapter
connection leads 2x4 mm plugs |
![]() |
||||||||||||||||
| 1 | 07.0102 |
PIN Si Photodetector
BPX 61 complete with housing |
![]() |
||||||||||||||||
| 1 | 07.0206 |
LDD-05 active power supply |
![]() |
||||||||||||||||
| 1 | 09.2720 |
Absorption unit |
![]() |
||||||||||||||||
| 1 | 19.0400 |
Digital multimeter 3 ˝ digits
|
![]() |
||||||||||||||||