{"id":233937,"date":"2024-10-19T15:15:25","date_gmt":"2024-10-19T15:15:25","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-iec-62595-2-22018\/"},"modified":"2024-10-25T09:46:40","modified_gmt":"2024-10-25T09:46:40","slug":"bs-iec-62595-2-22018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-iec-62595-2-22018\/","title":{"rendered":"BS IEC 62595-2-2:2018"},"content":{"rendered":"

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.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
4<\/td>\nCONTENTS <\/td>\n<\/tr>\n
6<\/td>\nFOREWORD <\/td>\n<\/tr>\n
8<\/td>\n1 Scope
2 Normative references
3 Terms, definitions, abbreviated terms and letter symbols
3.1 Terms and definitions
3.2 Abbreviated terms <\/td>\n<\/tr>\n
9<\/td>\n3.3 Letter symbols (quantity symbols\/unit symbols)
4 Measuring configuration
4.1 General
Table 1 \u2013 Letter symbols (quantity symbols\/unit symbols) <\/td>\n<\/tr>\n
10<\/td>\n4.2 Light measuring device (LMD)
4.2.1 Luminance meter
4.2.2 Spectroradiometer
4.2.3 Colorimeter
Figures
Figure 1 \u2013 Example of measuring system and arrangement for LED light bar <\/td>\n<\/tr>\n
11<\/td>\n4.3 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 <\/td>\n<\/tr>\n
12<\/td>\n6 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 \u2013 Example of LED light bar set and mechanical origin alignment <\/td>\n<\/tr>\n
13<\/td>\nFigure 3 \u2013 Example of 2D luminance distribution on the diffuser plate with litLED light bar <\/td>\n<\/tr>\n
14<\/td>\n6.2.4 Report
Figure 4 \u2013 Example of the luminance distribution profiles along the x- and y-axes
Figure 5 \u2013 Example of the luminance distribution profiles along the x\u2013axis, Lv(x, 0) <\/td>\n<\/tr>\n
15<\/td>\n6.3 Chromaticity and colour uniformity
6.3.1 Purpose
6.3.2 Measuring conditions
6.3.3 Measuring method
6.3.4 Report <\/td>\n<\/tr>\n
16<\/td>\n7 Test report <\/td>\n<\/tr>\n
17<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Display lighting unit – Measuring methods of LED light bars used in LCD BLUs<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2018<\/td>\n18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":233939,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-233937","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/233937","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/233939"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=233937"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=233937"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=233937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}