Product Catalog

E M I S S I ON S L I N E W AV E L ENGT H ( NM ) S T A N D ARD C O A T I N G ( %) U H T C ( %) B R IG HTNE S S INCRE A S E
HYDROGEN-ALPHA (HA) 656 7 6 .7 8 8. 4 6 15 . 3 3 %
HYDROGEN-BETA (HB) 4 8 6 7 6 . 8 8 9. 2 2 16 .17 %
OXYGEN III 49 6 77.6 8 9 .78 15 .7 %
OXYGEN III 50 1 77.9 8 8 . 9 8
15 . 5 1 %
HELIUM II 4 6 9 7 5 8 7. 6 3 16 . 8 4%
H E L I U M I 5 8 8 7 9 . 2 9 0 .1 13.7 6 %
N I T R O G E N I I 6 5 5 7 6 .7 8 8. 5 15 . 3 8 %
N I T R O G E N I I 6 5 8 7 6 . 6 8 8. 3 9 15 . 3 9 %
S U L F UR I I 6 7 3 7 5 .7 8 7.7 9 15 . 9 7 %
TOTAL LIGHT TR ANSMISSION
UHTC
™
ULTRA-HIGH TRANSMISSION COATINGS
EXHIBIT
5
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Why optical coatings matter.
More light means brighter views of galaxies, star clusters
and faint nebulas, plus greater details on planetary and
lunar surfaces. More light is what telescopes are all
about. So it’s an important scientific fact that each time
light reflects off a mirror or passes through a lens, some
light is lost. In the case of a lens, up to 10% of the light is
lost as it enters and exits each lens.
That’s why most Meade telescopes now include propri-
etary Ultra-high transmission coatings (UHTC). Adding
UHTC makes our telescopes dramatically brighter. It’s
equivalent to adding up to an inch of aperture (depending
on scope size).
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Over several years, Meade engineers pioneered the exotic
series of multi-layered coatings known as UHTC. They
are precisely designed to improve the performance of your
telescope’s optics. Unless you have a degree in optical engin-
eering, all you need to know is that these advanced
multi-coatings increase light transmission on average
(across the visual spectrum) by about 15%. For example,
Meade UHTC coatings will increase the image brightness
of a 10" LX200-ACF by the equivalent of about 0.75 inch of
aperture. That means higher performance for observers and
astrophotographers alike.
You’ll see brighter star clusters, more ne detail in
nebulas, and more surface features on planets with UHTC
than without. So go with a Meade telescope just for the
UHTC. It’s that good.
UHTC mirror coatings include aluminum enhanced with a complex multiple-
layer stack of titanium dioxide and silicon dioxide. UHTC lens coatings include
multiple layers of aluminum oxide, titanium dioxide and magnesium fluoride.
No, there will not be a test.
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