4 times longer guaranteed life

I Life Characteristics

TIME(hours)

4000

3000

2000

1000

0

0

100

50

1.1 times higher (L2-4000 series)

I Radiant Output Intensity

L2D2LAMP

L2-2000

SERIES

1.3 TIMES

HIGHER

(L2-2000 Series)

Fluctuation: 0.05 %p-p, Drift:

TIME (30 s/div.)

I Light Output Stability

TLSOB0051EA

1

L2D2 LAMPS

CONVENTIONAL LAMPS

EXCELLENT

TEMPERATURE

CHARACTERISTICS

LESS MOVEMENT

OF ARC

EMISSION POINT

SMALL INTENSITY VARIATIONS : 1/2

Compared to our conventional lamps

I Intensity Variation

TLSOB0053EA

TLSOF0138

TLSOB0052EA

HPLC

Atomic Absorption Spectrophotometers

Thin Layer Chromatography

UV-VIS Spectrophotometers

CE(Capillary Electrophoresis)

SOx/NOx Analyzers

Film Thickness Measurement

APPLICATIONS

The L2-4000 series 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.

The L2-2000 series lamps

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.

By using a newly devel-

oped ceramic structure, a

uniform and optimum tem-

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.

Use of a ceramic structure with excellent thermal

stability ensures stable lamp operation even in

the presence of ambient temperature variations.

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.

Since the ceramic structure has a small thermal

expansion coefficient, there is virtually no move-

ment of the arc emission point during operation.

TLSOB0050EA

WAVELENGTH (nm)

190

0

0.5

1

1.5

2

2.5

3

3.5

4

210

230

250

270

290

310

330

350

370

390

L2D2 LAMPS

CONVENTIONAL

LAMPS

L2-2000

SERIES

L2D2 LAMP

L2D2 LAMP

L2-4000

SERIES

CONVENTIONAL

TYPE

CONVENTIONAL

TYPE

1

2

WAVELENGTH(nm)

390

370

350

330

310

0

1

2

3

4

290

270

250

230

210

190