Optoma Theme Scene HD82 - Page 6

FULLY AUTOMATED CONSTANT
HEIGHT PROJECTION
The optional Optoma BX-AL133-B Anamorphic Projection Kit, combined
with the HD82 projector, provides a unique “fit and forget” solution for
Constant Height projection. Most major movie titles are released in
the 2.35:1 format and the BX-AL133-B Kit provides uncompromised
widescreen reproduction of this format. When a change from a 1.78:1
(16:9) to a 2.35:1 movie is detected the image simply gets wider - the full
screen height is maintained and so eliminates black bars. The resulting
2.35:1 image is bigger, brighter, higher resolution and completely
immersive - exactly as it would be at the cinema.
The BX-AL133-B Anamorphic Projection Kit Comprises:
Anamorphic Lens
• Fiveelement,100%glass,fullymulticoatedopticaldesigncorrected
for chromatic aberration and astigmatism
• Optics designed to exceed the resolution requirements for
1080P projection
Motorised Lens Mount
• Integrateswith theThemeSceneAuto235 featureto automatically
detect 2.35:1 presentations and configure the projector and
anamorphic lens accordingly
• HighPrecisionmaintenancefreemechanism
Mounting Plate
• Allows the lens and the motorised lens mount to be mounted
perfectly in relation to the projector
• EnablestheprojectorandtheAnamorphicProjectionKittobe
mounted as one
CEILING MOUNT ASSEMBLY
What is Constant Height Projection?
Many movies are presented in 2.35:1 aspect ratio. When these are
viewed on a 16:9 projector with a 16:9 screen black bars are visible
at the top and bottom of the image as below. A 16:9 source – like TV
fills all of a 16:9 screen with no black bars. This is called Constant
Width projection as with both formats the width of the image stays
the same.
2.35:1 Movie
16:9 TV
Constant Height projection uses a 2.35:1 aspect ratio screen. A 2.35:1
movie is displayed with no black bars top and bottom. 16:9 TV is
displayed with black bars at the sides.
2.35:1
16:9
Constant Height projection is optimised for watching movies. When using
the Optoma Anamorphic Kit the full potential of the projector is used when
displaying 2.35:1 movies. This enables a brighter, higher resolution image.
Image Sizes
For the same throw distance the Optoma Anamorphic Lens Kit
increasesthe horizontalsize ofa 2.35:1imageby33%relativetothe
same 2.35:1 image being displayed on a 16:9 screen. The vertical
height stays the same.
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HD82