🔥🔥 Don’t Miss Out on Our End of Autumn Sale. If you have any questions, feel free to click the bottom right corner to contact our customer service..

Concat us[email protected]
Shopping Cart

No products in the cart.

🔍
BSI PD IEC TR 62595-1-3:2019

BSI PD IEC TR 62595-1-3:2019

$102.76

Display lighting unit – Lighting units with arbitrary shapes

Published By Publication Date Number of Pages
BSI 2019 22
PDF Format Searchable Printable Preview Now
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. We’re here to assist you 24/7.
Email:[email protected]

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.

NOTE 1 Almost 20 years ago plastic LCDs were developed and used in a few applications

NOTE 2 Flexible BLUs have been used for bendable LC panels in recent years.

NOTE 3 Recent transmissive and transflective flexible LCs require flexible BLUs.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 CONTENTS
5 FOREWORD
7 INTRODUCTION
8 1 Scope
2 Normative references
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
9 3.2 Abbreviated terms
10 4 Flexible lighting units
4.1 General
Figures
Figure 1 – Examples of curved FLS and curved display
11 4.2 FLSs possessing arbitrary curvature
Figure 2 – FLS with an arbitrary curvature and measurement system
12 5 Single-curvature FLS model
Figure 3 – FLS element with curvature and changeof measurement field contour due to curvature
14 6 FLS light emission directionality
Figure 4 – Curved FLS with convex and concave curvatures
15 Figure 5 – 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 – Radiation pattern profiles of FLSs with nearlyLambertian luminous intensities (n = 0,8, 1, 1,2)
16 7 Measurement field projection on a curved FLS
Figure 7 – Confined flux in solid angles (θ = 0° to 90°) for intensity distributions with n = 0,8, 1, 1,2 and 15
Figure 8 – LMD’s cone cross section nearly equalto that of the FLS’s diameter
17 Figure 9 – Contour of projected measurement field’s conecross section on a cylindrical FLS
Figure 10 – Contour of a cone’s cross section of the measurement fieldon a large radius cylindrical FLS RFLS = = ∞ (flat)
Figure 11 – Off-axis measurement and cone’s cross section contouron the DUT (right half expanded and left half contracted)
18 Figure 12 – Measurement field cone’s cross section contour on a cylindrical FLS versus the angle between the LMD and DUT axes (δ)
Figure 13 – Cross section of the measurement field (cone’s cross section) with the angle (δ) between the LMD and DUT axes, on a concave cylindrical FLS
19 8 Discussion and conclusions
20 Bibliography

Related products

BSI PD IEC TR 62595-1-3:2019
$102.76