BS IEC 62595-2-2:2018
$102.76
Display lighting unit – Measuring methods of LED light bars used in LCD BLUs
| Published By | Publication Date | Number of Pages |
| BSI | 2018 | 18 |
This document specifies the standard measurement conditions and measuring methods for determining electrical and optical performances of LED light bars with white LEDs used in LCD backlight units.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 4 | CONTENTS |
| 6 | FOREWORD |
| 8 | 1 Scope 2 Normative references 3 Terms, definitions, abbreviated terms and letter symbols 3.1 Terms and definitions 3.2 Abbreviated terms |
| 9 | 3.3 Letter symbols (quantity symbols/unit symbols) 4 Measuring configuration 4.1 General Table 1 – Letter symbols (quantity symbols/unit symbols) |
| 10 | 4.2 Light measuring device (LMD) 4.2.1 Luminance meter 4.2.2 Spectroradiometer 4.2.3 Colorimeter Figures Figure 1 – Example of measuring system and arrangement for LED light bar |
| 11 | 4.3 Sample stage 5 Measuring conditions 5.1 Standard measuring conditions 5.2 Electrical driving conditions 5.3 Warm-up time 5.4 Dark room conditions 5.5 Standard thermal conditions 5.6 Setting conditions 5.7 Mechanical alignment condition |
| 12 | 6 Measuring methods 6.1 Electrical parameters 6.1.1 Purpose 6.1.2 Measuring conditions 6.1.3 Measuring method 6.2 Luminance distribution profile 6.2.1 Purpose 6.2.2 Measuring conditions 6.2.3 Measuring method Figure 2 – Example of LED light bar set and mechanical origin alignment |
| 13 | Figure 3 – Example of 2D luminance distribution on the diffuser plate with litLED light bar |
| 14 | 6.2.4 Report Figure 4 – Example of the luminance distribution profiles along the x- and y-axes Figure 5 – Example of the luminance distribution profiles along the x–axis, Lv(x, 0) |
| 15 | 6.3 Chromaticity and colour uniformity 6.3.1 Purpose 6.3.2 Measuring conditions 6.3.3 Measuring method 6.3.4 Report |
| 16 | 7 Test report |
| 17 | Bibliography |
