全部商品分類
-
- 品牌精選
-
-
- 品牌精選
-
-
- 品牌精選
-
|
歡迎電話咨詢：深圳 0755-27198826 上海 021-61278111 全國 400-666-2522
EIA GRAY SCALE
技術參數(shù)
Data: The EIA grayscale pattern is a standard 2" square projection slide. It
contains two parallel gray scales. The upper scale has nine nominally equal
transmission steps while the lower contains the same number of nominally equal
density steps. The transmission values range from 3% to 60%, corresponding to
density values of 1.52 and 0.22 respectively. The slide is chrome on glass and
densities are achieved by a fine halftone pattern.
?
Copyright ? 1998-2025深圳市天友利標準光源有限公司 旗下123儀器網(wǎng) 版權所有
主要產品系列：色差計，色差儀，國產進口色差計，便攜式色差計，手持式色差計，標準光源對色燈箱，分辨率測試卡，色卡
