L2D2 Lamps (Deuterium Lamps )
LONG LIFE : 4000 HOURS
HIGH LIGHT OUTPUT : 1.3 TIMES HIGHER
(L2-2000 Series)
4 times longer guaranteed life
1.1 times higher (L2-4000 series)
ꢀ Life Characteristics
The L2-2000 series lamps
The L2-4000 series lamps
ꢀ Radiant Output Intensity
produce 1.3 times higher
light output than conven-
tional lamps. The L2-4000
series lamps even offer
light output 1.1 times higher
than conventional lamps.
assure an operating life of
4000 hours-4 times longer
than conventional lamps.
This is the longest operat-
ing life of any deuterium
lamp.
4
100
L2D2LAMP L2-2000 SERIES
1.3 TIMES HIGHER
3
2
50
0
L2D2 LAMP
L2-2000
SERIES
L2D2 LAMP
L2-4000
SERIES
CONVENTIONAL
TYPE
1
0
L
T
T
N
IT
(%
CONVENTIONAL
TYPE
L
I
E
S
(
U
0
1000
190
210
2000
TIME(hours)
230
250
270
WAVELENGTH(nm)
3000
290
310
330
350
4000
370
390
TLSOB0050EA
TLSOB0052EA
HIGH STABILITY:2TIMES STABLE
SMALL INTENSITY VARIATIONS : 1/2
Fluctuation: 0.05 %p-p, Drift: 0.3 %/h
Compared to our conventional lamps
The spacing between elec-
trodes is kept fixed by a
molded ceramic spacer.
This reduces the lamp to
lamp variations in the light
output to one half of that
obtained with our lamps
having a conventional all
metal structure.
ꢀ Intensity Variation
By using a newly devel-
ꢀ Light Output Stability
oped ceramic structure, a
TLSOB0053EA
4
uniform and optimum tem-
TLSOB0051EA
L2D2 LAMPS
perature distribution, which
are the most important
factor for stable operation,
can be obtained. This
results in fluctuations of
only 0.05 %p-p in the light
output, as well as a re-
duced drift of only 0.3 %/h.
3.5
3
L2D2 LAMPS
1×10-5AU
TLSOF0138
CONVENTIONAL
LAMPS
2.5
2
APPLICATIONS
UV-VIS Spectrophotometers
CE(Capillary Electrophoresis)
SOx/NOx Analyzers
HPLC
Atomic Absorption Spectrophotometers
Thin Layer Chromatography
1.5
1
CONVENTIONAL LAMPS
Film Thickness Measurement
0.5
0
190
210
230
250
270
290
310
330
350
370
390
TIME (30 s/div.)
WAVELENGTH (nm)
EXCELLENT
LESS MOVEMENT
OF ARC
EMISSION POINT
Use of a ceramic structure with excellent thermal
stability ensures stable lamp operation even in
the presence of ambient temperature variations.
Since the ceramic structure has a small thermal
expansion coefficient, there is virtually no move-
ment of the arc emission point during operation.
TEMPERATURE
CHARACTERISTICS
1
2
HAMAMATSU [ HAMAMATSU CORPORATION ]
