{"id":234089,"date":"2024-10-19T15:16:03","date_gmt":"2024-10-19T15:16:03","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bsi-pd-iec-tr-62595-1-32019\/"},"modified":"2024-10-25T09:47:43","modified_gmt":"2024-10-25T09:47:43","slug":"bsi-pd-iec-tr-62595-1-32019","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bsi-pd-iec-tr-62595-1-32019\/","title":{"rendered":"BSI PD IEC TR 62595-1-3:2019"},"content":{"rendered":"

This part of IEC 62595 focuses on common issues of light emission such as spatial uniformity of luminance and colour, and angular distribution of luminance and colour, from lighting units with arbitrary shapes like flexible lighting sources (FLSs). This document provides a model of light emission from a curved FLS and of light measurement on a curved FLS. Because the development of flexible liquid crystal panels is in progress (see the notes), the intent of this document is to provide guidance for the development of future measurement standards. This document is applicable to FLSs either as light sources, products or elements with arbitrary shapes of geometrical curvature having different spectral and spatial characteristics of light emission.<\/p>\n

\n

NOTE 1 Almost 20 years ago plastic LCDs were developed and used in a few applications<\/p>\n<\/blockquote>\n

\n

NOTE 2 Flexible BLUs have been used for bendable LC panels in recent years.<\/p>\n<\/blockquote>\n

\n

NOTE 3 Recent transmissive and transflective flexible LCs require flexible BLUs.<\/p>\n<\/blockquote>\n

PDF Catalog<\/h4>\n\n\n\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
5<\/td>\nFOREWORD <\/td>\n<\/tr>\n
7<\/td>\nINTRODUCTION <\/td>\n<\/tr>\n
8<\/td>\n1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions <\/td>\n<\/tr>\n
9<\/td>\n3.2 Abbreviated terms <\/td>\n<\/tr>\n
10<\/td>\n4 Flexible lighting units
4.1 General
Figures
Figure 1 \u2013 Examples of curved FLS and curved display <\/td>\n<\/tr>\n
11<\/td>\n4.2 FLSs possessing arbitrary curvature
Figure 2 \u2013 FLS with an arbitrary curvature and measurement system <\/td>\n<\/tr>\n
12<\/td>\n5 Single-curvature FLS model
Figure 3 \u2013 FLS element with curvature and changeof measurement field contour due to curvature <\/td>\n<\/tr>\n
14<\/td>\n6 FLS light emission directionality
Figure 4 \u2013 Curved FLS with convex and concave curvatures <\/td>\n<\/tr>\n
15<\/td>\nFigure 5 \u2013 Radiation pattern of FLSs with nearly Lambertian luminous intensities(n = 0,8, 1, 1,2) and collimated light intensities (n = 5, 10, 15)in a spherical coordinate system
Figure 6 \u2013 Radiation pattern profiles of FLSs with nearlyLambertian luminous intensities (n = 0,8, 1, 1,2) <\/td>\n<\/tr>\n
16<\/td>\n7 Measurement field projection on a curved FLS
Figure 7 \u2013 Confined flux in solid angles (\u03b8 = 0\u00b0 to 90\u00b0) for intensity distributions with n = 0,8, 1, 1,2 and 15
Figure 8 \u2013 LMD\u2019s cone cross section nearly equalto that of the FLS\u2019s diameter <\/td>\n<\/tr>\n
17<\/td>\nFigure 9 \u2013 Contour of projected measurement field\u2019s conecross section on a cylindrical FLS
Figure 10 \u2013 Contour of a cone\u2019s cross section of the measurement fieldon a large radius cylindrical FLS RFLS = = \u221e (flat)
Figure 11 \u2013 Off-axis measurement and cone\u2019s cross section contouron the DUT (right half expanded and left half contracted) <\/td>\n<\/tr>\n
18<\/td>\nFigure 12 \u2013 Measurement field cone\u2019s cross section contour on a cylindrical FLS versus the angle between the LMD and DUT axes (\u03b4)
Figure 13 \u2013 Cross section of the measurement field (cone’s cross section) with the angle (\u03b4) between the LMD and DUT axes, on a concave cylindrical FLS <\/td>\n<\/tr>\n
19<\/td>\n8 Discussion and conclusions <\/td>\n<\/tr>\n
20<\/td>\nBibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Display lighting unit – Lighting units with arbitrary shapes<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2019<\/td>\n22<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":234092,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-234089","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\/234089","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\/234092"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=234089"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=234089"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=234089"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}