- Shenzhen Threenh Technology Co., Ltd.
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Shenzhen, Guangdong, China
- Main products: Colorimeter/Spectrophotometer/Spectrodensitometer, Standard Light Source Booth/Lamp/Test Chart/Color Card, Gloss Meter/Color Haze Meter/Thickness Gauge
Home > Products > Test Charts > Sine Image YE0223 HDTV Gray Scale Test Chart for Camera Mobile Phone Lens Halftone Reproduction Testing (D = 0.75)
Sine Image YE0223 HDTV Gray Scale Test Chart for Camera Mobile Phone Lens Halftone Reproduction Testing (D = 0.75)
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/ Piece
1 Piece(Min. Order)
- Shenzhen, China
- 7 days
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Product Details
| Brand Name | Sine Image | Model Number | YE0223 |
Product Description
PRODUCT DETAILS
The YE 0223 is designed for evaluation of the halftone reproduction of electronic cameras. Two 13-graduated counter current gray scales are arranged on a gray background (D = 0.75), the gray scales being graduated logarithmically. Related to the densities of the gray scales: gamma = 0.45, related to the transmission values (brightness): gamma = 2.2, that being exactly the reciprocal value of gamma = 0.45. The output signal of a optimally gamma-corrected camera yields two 13-gratuated counter current linear step signals.
The contrast range of the gray scales is 200 : 1.
The values of the 11-graduated gray scale are as follows:
| Step | Density | Reflectance in % |
| 1 | 0.05 | 89 |
| 2 | 0.13 | 74 |
| 3 | 0.21 | 62 |
| 4 | 0.30 | 50 |
| 5 | 0.40 | 40 |
| 6 | 0.51 | 31 |
| 7 | 0.63 | 23 |
| 8 | 0.78 | 17 |
| 9 | 0.95 | 11 |
| 10 | 1.15 | 7 |
| 11 | 1.41 | 4 |
| 12 | 1.77 | 2 |
| 13 | 2.35 | 0.5 |
The density of the white field between the gray scale is D = 0.05 (reflectance = 89 %).
Contact Us
- Shenzhen Threenh Technology Co., Ltd.
- Contact nameYumi Chat Now
- AddressBaoan District, Shenzhen, Guangdong
Product Categories
| Spectrophotometer | Colorimeter | Glossmeter | Light Booths |
| Spectrodensitometers | Spectrophotometer Accessories | Test Charts |
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