The finest home theatre projection screens

Transcription

1 The finest home theatre projection screens

2 Acoustically Transparent screen materials 20/06/2017 Copyright 2017 Screen Excellence 1

3 Why an Acoustically Transparent screen? üall commercial theatres use it üall sound to film studios use it for mixing üwhen you see an actor speaking, you expect the sound to come from his or her mouth and from nowhere else üthe coherence between the sound and the image is essential at any time. When it travels across the screen, it becomes crucial: üthe acoustic environment of a loudspeaker located very near to the floor or to the ceiling is disastrous 20/06/2017 Copyright 2017 Screen Excellence 2

4 Sound vs Image with solid screen The speakers can only be placed around the screen. The image travels across the screen following a straight path, while you perceive the sound travelling down and then up, which is incoherent and therefore sounds wrong 20/06/2017 Copyright 2017 Screen Excellence 3

5 Sound vs Image with Acoustically Transparent screen The speakers can be placed behind the screen, as originally intended in the soundtrack and the image and the sound remain in perfect coherence and sounds right generating a real cinematic experience 20/06/2017 Copyright 2017 Screen Excellence 4

6 Installing speakers behind the screen 20/06/2017 Copyright 2017 Screen Excellence 5

7 What kind of A.T. screen? Micro perforated screen Woven screen A solid, perforated material with very tiny holes is used to let the air, and sound to flow through. A synthetic woven fabric is used that allows the air and the sound flow through. 20/06/2017 Copyright 2017 Screen Excellence 6

8 The sound can only go through the holes punched in the screen material, representing about 6% of its surface. This means 94% of the sound is reflected backwards The insertion loss can be > 10dB! Micro perforated screen materials The red trace is the response of the speaker alone. The black trace is through a micro perforated screen 20/06/2017 Copyright 2017 Screen Excellence 7

9 The sound diffracts around the woven threads to make its way through the screen surface. No sound is reflected backwards. The insertion loss < 1dB! (Enlightor NEO-S) Woven Screen Materials Enlightor Neo-S Frequency Response The red trace is the response of the speaker alone. The blue trace is through a the Enlightor NEO-S 20/06/2017 Copyright 2017 Screen Excellence 8

10 Woven vs. Micro perforated 20/06/2017 Copyright 2017 Screen Excellence 9

11 How about that moiré? Moiré effect is one of the greatest challenge in designing a good acoustic projection screen since the appearance of the fixed pixel projectors. It appears when the projected pixels pattern (grille) hits the similar size and/or order pattern of the screen, formed by the holes or weaves of the material, and creates vertical, horizontal and diagonal lines (artefacts) that really diminish the picture quality. In extreme cases it looks like the picture is being viewed through the mesh on a screen door, as seen here on the right. Moiré does not necessarily occur with micro perforated screens or with other woven screens, but simply, it can The probability increases as the resolution gets higher Screen Excellence Enlightor woven surfaces are 100% immune to moiré effect even beyond 4K resolution due to their extremely fine weave. 20/06/2017 Copyright 2017 Screen Excellence 10

12 Woven screen materials Enlightor 4K Enlightor NEO-S Enlightor NEO-W Enlightor A.L. The original 4K woven surface The audiophile screen surface The large size Enlightor surface Woven Ambient Light surface A woven synthetic flameretardant fabric with an excellent colour neutrality and negligible and frequency independent acoustic transmission loss, A woven synthetic flameretardant fabric with a negligible acoustic insertion loss and an enhanced video dynamic range, A woven synthetic flameretardant fabric with a minimum acoustic insertion loss and an excellent video dynamic range for very large seamless screens. A woven synthetic flameretardant fabric with a moderate acoustic insertion loss and an excellent video capability even in the moderate ambient light. Acoustic insertion loss (constant) <2.5 db <1.0 db <1.5 db <5.0 db Gain Max standard sizes (Base Width) HD AR: 1.78:1 (16/9) WS AR: : mm mm mm mm mm mm mm mm 20/06/2017 Copyright 2017 Screen Excellence 11

13 Comparison of woven materials 20/06/2017 Copyright 2017 Screen Excellence 12

14 Ambient Light Rejecting screen materials 20/06/2017 Copyright 2017 Screen Excellence 13

15 Rejecting that Ambient Light Sometimes the cinema or media room can not be fully dark, even that would be ideal for the best picture. Therefore, we also offer a range of best in class Ambient Light Rejecting materials for a perfect image in any ambient light conditions: Light absorbing particles Nano-mirrors Structured surface Binder ~0.17mm Light absorption layer 16K resolution pixel 0 The Ambient Visionaire Silver and Black use the latest Nano-technology to effectively reject any ambient light while enhancing the contrast and gain. chris seymour managing director tel chris@s-se.us 618 crystal street. // Ames IA seymourscreenexcellence.com 20/06/2017 The Ambient Visionaire Grey uses microscopic lenses to allow the use of the ultra short throw projector while effectively blocking the ambient light Copyright 2017 Screen Excellence chris seymour generalissimo tel chris@seymour-screenexcellence.com 1234 pleasent view street. // Ames IA seymour-screenexcellence.com 14

16 Ambient Light Rejecting materials Ambient Visionaire Black The high contrast Ambient Light projection surface A solid projection surface for ultimate imaging and enhanced contrast in medium to moderate ambient light conditions Ambient Visionaire Silver The extreme Ambient Light projection surface A solid projection surface for ultimate imaging and enhanced contrast even in extreme ambient light conditions Ambient Visionaire Grey The Ultra Short Throw Ambient Light projection surface A solid projection surface ultimate imaging and enhanced contrast especially designed for Ultra Shorth Throw projectors Off Axis light rejection x 9.2 x 3 x 3 Gain Max standard sizes (Base Width) HD AR: 1.78:1 (16/9) mm mm mm WS AR: : mm mm mm 20/06/2017 Copyright 2017 Screen Excellence 15

17 Screens Flat, curved, HD, WS, fixed or electrically retractable... Screen Excellence provides a complete range of the highest quality screens. Each screen is hand crafted to the customers exact specifications in England or in the USA using the finest materials and components 20/06/2017 Copyright 2017 Screen Excellence 16

18 Fixed Frame Screens Max standard sizes (Base Width) Surfaces Options HD AR: 1.78:1 (16/9) WS AR: :1 Reference Contrast Slim FullScreen VistaCurve A reference fixedframe screen with high grade aluminium frame and 94mm InfineBlack Velvet borders mm 280" 7112mm Enlightor Magnetic masking Snap-In Brackets A neat fixed-frame screen with high grade aluminium frame and 38mm InfineBlack Velvet borders mm 140" 3556mm Enlightor Ambient Visionaire A slim fixed-frame screen with high grade aluminium frame and 15mm InfineBlack Velvet borders mm 140" 3556mm A borderless fixedframe screen with high grade aluminium frame mm 140" 3556mm A curved fixed-frame screen with high grade aluminium frame and 94mm InfineBlack Velvet borders 210" 5334mm 210" 5334mm Enlightor Enlightor Enlightor Magnetic masking Snap-In Brackets 20/06/2017 Copyright 2017 Screen Excellence 17

19 Masking Screens TAM 1 TAM 2 TB TAM 2 L TAM 2 FC Absolute TAM-4 A fixed-frame screen with single top down motorised mask A fixed-frame screen with top and bottom motorised masks A fixed-frame screen with lateral motorised masks A fixed-frame screen with fully closing lateral motorised masks A Curved fixedframe screen with fully closing lateral motorised masks A fixed-frame screen with 4-way motorised masks Native AR Closed AR Max standard sizes (Base Width) 180" 4572mm 180" 4572mm 200" 5080mm 180" 4572mm 180" 4572mm mm Surfaces Enlightor Ambient Visionaire Enlightor Ambient Visionaire Enlightor Ambient Visionaire Enlightor Enlightor Enlightor Controls RS232 IR RF RS232 IR RF RS232 IR RF RS232 IR RF RS232 IR RF RS232 IR RF 20/06/2017 Copyright 2017 Screen Excellence 18

20 Retractable Screens Max standard sizes (Base Width) HD AR: 1.78:1 (16/9) WS AR: :1 RST RM2 T MFR A retractable tab tensioned screen with solid projection surface mm 160" 4064mm A retractable tab tensioned Acoustically Transparent screen mm 140" 3556mm A retractable tab tensioned Acoustically Transparent screen with motorised masking mm 140" 3556mm Surfaces Enlightor S (solid) Enlightor 4K Enlightor 4K Options Case colour: White / Black Custom Black Drop In Ceiling Version Case colour: White / Black Custom Black Drop Case colour: White / Black Custom Black Drop 20/06/2017 Copyright 2017 Screen Excellence 19

21 Reference Installations Screen Excellence screens are installed in some of the finest home cinemas around the world. Here few examples 20/06/2017 Copyright 2017 Screen Excellence 20

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27 For more information please contact us Screen Excellence Ltd. Unit 136, Bentwaters Parks, Rendlesham IP12 2TW, Suffolk, United Kingdom t: + 44 (0) sales@screenexcellence.com - screenexcellence.com 20/06/2017 Copyright 2017 Screen Excellence 26