|
 
- 积分
- 17983
- 威望
- 17983
- 包包
- 26159
|
本帖最后由 细胞海洋 于 2013-3-22 14:41 编辑 4 @9 g5 m$ W* F4 T
% e; }$ A1 O% B7 Z* ]' b3 X
( U5 }5 X9 F" e3 c" W) d' U9 D" C* j! v
Glasses-free three-dimensional (3D) displays could
& t F: l/ u( O% @6 R& I) nrevolutionize areas such as data visualization, medical training and w, T; Y+ M; a8 ]) E
entertainment, particularly if adapted to mobile devices. Holography can provide
1 E, R! ]+ C p! P4 W$ Mideal 3D viewing but is too slow or expensive for many applications. Multiview 4 q l6 J3 {2 k' ?. ?
approaches are the alternative, exploiting various geometric optical tricks to
( @9 k- E% r9 g* _, k2 D# Pcreate 3D images that can be viewed from many directions at the same time. A team working at Hewlett-Packard’s laboratories in Palo Alto
. q3 S9 E# h: Z8 ]+ _, S# Bhas developed a new multiview 3D display that is particularly well suited to
, N" S2 f5 ^9 s9 Z6 zmobile devices, which require thin displays with high spatial resolution and a & f, s% K2 @7 p- f
wide-angle view zone. Central to the new device is a set of directional grating
7 I: {% A6 Z. b& G, Ypixels, associated with different views and colours, etched on the backlight
1 B9 S. M$ c' {7 D1 V4 `surface. The display uses an LED-lit backlight very similar to those in use in ' Y" R1 v$ {, }* N
LCD screens today, and is demonstrated in action in transparent hand-held
) Y8 E# l: j6 F+ \' Y5 |/ ]prototypes showing animated sequences of up to six different 200-view images at
- `9 W) q( b. R- b3 f/ @# @# la resolution of 127 pixels per inch. The cover image represents a 3D image from . V& N7 A/ @/ P8 |; A# R. i
a passively modulated backlight. ' i2 U4 A N" S
' D% F. ^2 T5 S% V# V5 }2 L! W; d
! t' N2 H& x4 W! m |
附件: 你需要登录才可以下载或查看附件。没有帐号?注册
-
总评分: 威望 + 20
包包 + 20
查看全部评分
|