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TOPIC: How important is curving for small screen.

How important is curving for small screen. 18 Jul 2002 07:53 #27860

  • fevzigenc
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Hi all,

I have a small screen (220mm*517mm). My question is; Is curving neccesary for my screen. What is the benefit to curve..

Thanks
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Re: How important is curving for small screen. 18 Jul 2002 08:45 #27861

  • Ken Layton
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Forget the curve. You don't need it.
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Re: How important is curving for small screen. 18 Jul 2002 09:31 #27862

  • Mike
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Masking is more important than curve on any screen other than the largest

Michael Hurley
Impresario
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Re: How important is curving for small screen. 18 Jul 2002 10:27 #27863

  • John Pytlak
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You should NOT curve a low gain ("matte") screen.

A gain screen should be curved to efficiently reflect the light to the prime seating area of the auditorium. This can be done by "ray tracing", or following the guidelines in SMPTE Recommended Practice RP95. Gain screens that are not properly curved will be difficult to illuminate uniformly, without having "hot spots" and falloff.

John P. Pytlak, Senior Technical Specialist
Worldwide Technical Services
Entertainment Imaging
Research Labs, Building 69, Room 7525A
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: 585-477-5325 Cell: 585-781-4036 Fax: 585-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
John P. Pytlak, Senior Technical Specialist
Customer Technical Services
Entertainment Imaging
Research Labs, Building 69, Room 7525A
Eastman Kodak Company
Rochester, NY 14650-1922
Telephone: +1 585-477-5325 Fax: +1 585-722-7243
E-Mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Website: http://www.kodak.com/go/motion
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Re: How important is curving for small screen. 18 Jul 2002 12:48 #27864

  • Large
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And I have heard that modern projection lenses are ground with the flat screen in mind.
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Re: How important is curving for small screen. 20 Jul 2002 04:41 #27865

  • fevzigenc
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Thank you or your help..

Fevzi
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Re: How important is curving for small screen. 06 Aug 2002 13:44 #27866

  • mesbursmith
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Fevzi

I just got back from vacation so I didn't see your question. I think you must mean your screen is 220 x 517 cm, not mm. Generally, we do not consider curved screens which are less than 12 meters in width. Even larger screens are often better flat. The best curved screen theatre we've designed had a 26 meter x 14 meter high high gain screen in a 923 seat auditorium. The response from John Pytlak is excellent advice. I have seen too many theatres with curved screens with distorted images and uneven illumination because the screens were not properly configured.
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