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???????

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Title: 1 Author: yuanlingli Last modified by: yuanlingli Created Date: 12/4/2002 8:35:06 AM Document presentation format: – PowerPoint PPT presentation

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Title: ???????


1
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6.4 ?????
2
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?. ?????????????????.
????????
??J ??E(???PHg)
?.????????
???HPM???HPM???????????
3
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1.???????????????
????
a) ?????????
HgAr
larcgt8mm, ?????
??
larclt8mm, ?????
4
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b) ??
E ??? PHg
E?????? EJ/eneµe I Sarc J????
L?????
c) ???????0.52atm ? Xe
?? ?? ??? ??
5
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2. ????????
d13mm
?????
??
??????
???? ????
??
?????
HgAr 5kPa
6
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UHP ??
??????
??TV
CRT
LCD ??,????? CCFL
????
LCOS ??MH, UHP
PDP (Plasma Display Panel)
7
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?. LCOS?????
???????????
UHP 1.01.5mm ?? 60 6103 100200 10001500/cm
MH 3.03.5 ?? 60 lt3000 200350 7001000W/cm
??(mm) ?? ??(lm/w) ??(h) ??(w) ????(Pl1)
8
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?????? ????? ?????????????
????????
Projection Set
?very big images ?excellent image quality ?low
volume and weight
Advantages
9
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Professional Presentation
?variable image size ?animation effects
Home TV
?front and rear projector ?screen diagonal 125cm
and more ?low set depth lt30cm possible ?no heavy
and big CRT tube
10
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  • Comparing between MHL and UHP
  • 1)good white color
  • 2)filling chemical materials react with
    quarts

Rapid decrease in brightness Relative short lamp
life Color shift over the service life
3)too long gap
11
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UHP Lamp
?10000 hrs of life ?small color shift ?brightness
drops far less than in MHL ?ultra short arc gap
L(100 UHP)(24) L(200400MHL) ?low power
consumption
12
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UHP an outstanding concept
only Hg as radiating species very short
arc(1.3mm1.0mm) working Hg pressure of 200
bar 104 hrs life possible
13
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HPM ??
1.????????????????????????????
2.?????????????????
3.??????????????????
4.?????????????????
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