For faster navigation, this Iframe is preloading the Wikiwand page for RealD 戏院.

RealD 戏院

RealD 影院是一个数码立体投影技术并由RealD 公司英语RealD销售,是目前最广泛使用的适用于电影院的3D电影技术。[1]

技术

[编辑]
两个 RealD 眼境显示的偏振效应
由于镜片的不对称性,黑暗反射出现在镜片中。

RealD 3D 技术采用圆偏振光来产生立体图像投影,优势是观众能够倾斜地观看而不会看到双重或变暗图像。[2] 然而与其他系统一样,任何歪头会导致不正确的立体图像融合。

因为RealD 3D只使用投影机技术,受到亮度限制。该系统将有显著的光损失; RealD的估计,观看RealD 3D时和普通电影相比,观众只会看到约35%的光。[2] RealD 3D 采用高清晰度,数字影院级的影像投影技术。投影机交替投射右眼帧和左眼帧,它们之间的切换每秒144次。[2]投影机使用得克萨斯仪器或索尼产生的数字或光处理设备。推挽光电液晶调制器(或称为ZScreen)放置在投影机镜头前负责交替和分化每一帧。RealD 3D 推挽光电液晶调制器将右眼的帧顺时针圆极化,左眼的帧则逆时针圆极化。观众戴上圆偏振光眼镜后,相反的偏光镜片令确保每只眼睛看到只有其指定的帧。每帧预计可减少三次闪烁(称为三重闪光系统)。通常在每眼秒24帧/秒,共48帧/秒。但可能导致微妙的鬼影。而RealD 3D则使用银幕控制反射光的偏振和减少反射损耗,补充一些由偏振过滤器导致的画质损失。 [3]

观看舒适度

[编辑]

画质由于使用偏振光技术,所以造成画质损失。屏幕亮度一半损失在投影机前偏振过滤器,另四分之一损失在眼镜上,真正到达眼睛的光线预计只有四分之一[2] 。但由于银幕有措施提升亮度,所以整体效果是戴着一副稍微变暗的眼镜。不会看不清屏幕。

一些电影观众抱怨看3D时头痛或恶心。[4][5]这是因为观众倾斜头部,使大脑难融合的两幅图像(由于视差和相机)。造成非常不同深度的场景之间的帧快速转换。因此,观看3D电影时应该避免倾斜头部。[6]

参见

[编辑]
  • 三维电影
  • Digital 3D
  • IMAX
  • Disney Digital 3-D
  • Panavision 3D
  • Dolby 3D
  • XpanD 3D
  • MasterImage 3D
  • Lenny Lipton

参考文献

[编辑]
  1. ^ Verrier, Richard. 3-D technology firm RealD has starring role at movie theaters. Los Angeles Times. 2009-03-26 [2011-02-05]. (原始内容存档于2011-03-04). 
  2. ^ 2.0 2.1 2.2 2.3 Cowan, Matt. Real D 3D Theatrical System (PDF). European Digital Cinema Forum. [2009-03-28]. (原始内容 (PDF)存档于2016-09-10). 
  3. ^ Cowan, Matt. Presentations (technical). RealD Media Room downloadable files. [2009-03-28]. (原始内容存档于2009-08-03). 
  4. ^ Watt, Nick. Will 'Avatar' Make Viewers Nauseous? The 3D Effects in Blockbuster Movie 'Avatar' Are Claimed to Be 'Vomit Inducing'. ABC news. 2009-12-19 [2012-04-22]. (原始内容存档于2011-06-04). 
  5. ^ How to avoid getting a 3D headache while watching Avatar. Shadowlocked. 2009-12-21 [2012-04-22]. (原始内容存档于2013-01-05). 
  6. ^ Needleman, Rafe. 3D means new rules for directors. 2009-06-18 [2012-04-22]. (原始内容存档于2012-03-20). 

外部链接

[编辑]
{{bottomLinkPreText}} {{bottomLinkText}}
RealD 戏院
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?