Toshiba e-STUDIO453 - Exposure Lamp

e-STUDIO350/352/353/450/452/453
SCANNER
6
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6.4.2 Exposure lamp
Externalelectrodetypexenonuorescentlampisusedasanexposurelampinthisequipment.
(1) Structure
Fluorescer is applied on the inside surface of the lamp pipe (except a part to be an opening)
whichislledwiththexenongas.
 Apairoftheexternalelectrodescoveredbythelmwiththeadhesiveagentisattachedoverthe
pipe.
(2) Behavior inside the lamp
 Theelectroninsidethepipeisledtotheelectriceldbyapplyingvoltagetothepairoftheexter
-
nalelectrodes,anddischargeisstarted.Electronsthenowandclashwiththexenonatominside
thepipetoexcitethem,andgeneratetheultravioletray.Thisultravioletrayconvertstheuoresc-
er into the visible light.
PETlm
Aluminum tape
electrode
Adhesive agent,
PET,lm
Glass valve
Fluorescer
Xenon gas
(1)Electrode (2)Electron (3)Xenon atom (4)Ultraviolet ray (5)Fluorescer
(6)Visible light (irradiated from the opening to outside the pipe)
(7)Opening (8)Harness
(1)
(6)
(8)
(7)
(5)
(2)
(4)
(3)
Fig. 6-402
Fig. 6-403