产品品牌：

DNP(日本)

产品型号：

4: 3 types

详细介绍：

1. This test chart has become identical standard with the resolution chart of ITE standard. 2. (1) resolution (2) streaking (3) linking (4) interlaced scanning (5) shading (6) linearity of scan (7) Aspect ratio of scan (8) the alignment (9) you can appraise gradation. 3. Transmissivity or reflectance ratio of the main part is shown below. (1) transmissivity of white inside great circle or reflectance ratio 60% or more (2) transmissivity or reflectance ratio 40 5% of background outside±great circle (3) referring to transmissivity or reflectance ratio of the grey scale the below-mentioned chart
功能描述：

Step number	1	2	3	4	5	6	7	8	9	10
Transmissivity or Reflectance ratio	60% or more	60.0%	41.7%	28.2%	19.5%	13.5%	9.3%	6.3%	4.4%	3.0%