個人認為: )vsX (/WU TV distortion一般會小於2%且屬於負畸變,那光學畸變當然有正有負,以照相機來說2~3%人眼還可以接受,如果超過5%人眼就會察覺~~~一點淺見
文天祥
2005-09-15 00:49
再補充說明: xep8CimP' 在規格書上看到的TV distortion是傳送到螢幕的變形量。
xiaoniu
2005-09-15 17:19
distortion与TV distortion有一定的关联吧!?
puxinghai
2005-11-07 15:08
应该是畸变的一种,只是专门针对TV的,对TV有一个指标而已
puxinghai
2005-11-07 15:09
也就是说你要将畸变控制在一个范围以内
davidchao61
2005-11-30 18:09
Optical distortion是所計算絕對的值, |[Rlg`TQ;* TV distortion是在sreen上所的得到的相對值,只care max 及 min的差異, TYKs2+S6 因為數碼容易調整。 c[>xM3=e^q TV distortion與optical distortion會依不同視場定義不同。
转一个光学设计论坛里的帖子 suS[P?4 Z(XohWe2 在光学设计中有人经常碰到这样的问题,光学镜头的指标中有两项对于畸变的要求 wF9L<<&B $^_6,uBM[ 一个是DISTORTION,另一个是TV DISTORTION ^IKT!"J&? ;0U*N &
f 其中的TV 畸变很多人不知道它的含义,再此给大家提供以下信息供参考,看了之后TV 畸变的概念就很清楚了 8iTB c'>_JlG~ & 'CUc/, guG&3{&\s What is distortion? >=4(' Distortion is the ratio of the change between the center and edge areas of a captured image. Due to the aberration of the lens, the distortion is more noticeable at the edges of a captured image. There are two types of distortion: barrel distortion and pincushion distortion. The general rule is that when the absolute value of the distortion value is smaller, the lens offers higher accuracy. 6e8 gFQ"w2 fy$?~Ji& Calculating formula O0FUJGuTS TV distortion (Dtv) = Δh/2h x 100 (%) UwxszEHC A positive value of TV distortion indicates 2M*i'K;;)P pincushion distortion and a negative value dVUe!S` indicates barrel distortion. 6?Kl L [~ <F8e?xy 原帖网址:http://www.opto-tech.com/read.php?tid-3086.html Cs(sar:7 S@'%dN6e