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GB/T 33048-2016 English PDF

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GB/T 33048-2016: Polarizing film -- Test method of optical retardation
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Basic data

Standard ID GB/T 33048-2016 (GB/T33048-2016)
Description (Translated English) Polarizing film -- Test method of optical retardation
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G15
Classification of International Standard 71.080.99
Word Count Estimation 6,653
Date of Issue 2016-10-13
Date of Implementation 2017-05-01
Regulation (derived from) National Standard Notice No.1716 of 2016
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 33048-2016: Polarizing film -- Test method of optical retardation

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Polarizing film - Test method of optical retardation ICS 71.080.99 G15 National Standards of People's Republic of China Determination of optical compensation value of polarizer 2016-10-13 released 2017-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Petroleum and Chemical Industry Association. This standard by the National Optical Functional Film Materials Standardization Technical Committee (SAC/TC431) centralized. The drafting of this standard. Shenzhen Shengbo Optoelectronics Technology Co., Ltd. The main drafters of this standard. Qiu Shaohua, Chen Min, Zhong Weihong, Sudan, Zhong Weihong, Qian Kun, Sheng Zhengjun. Determination of optical compensation value of polarizer

1 Scope

This standard specifies the compensation method for compensating the compensation film for polarizers. This standard is applicable to the testing of single-layer optical compensation films and also to the compensation values of polarizers with compensating films.

2 terms and definitions

The following terms and definitions apply to this document. 2.1 Compensation value When the light passes through the birefringent material, the two kinds of light superposition caused by the difference between the ordinary light and the unusual light transmission speed Into the bit difference. 2.2 In-plane compensation value in-planeretardation Re The phase difference obtained in the plane is compensated. Re = (nx-ny) d Where. nx - the refractive index in the slow axis direction of the plane of the film; ny - the refractive index in the direction of the fast axis in the plane of the film; d - the thickness of the film, in nanometers (nm). 2.3 Thickness compensation value Rth Thickness direction obtained by the phase difference compensation. Rth = nx ny 2 -nz ÷ d Where. nx - the refractive index in the slow axis direction of the plane of the film; ny - the refractive index in the direction of the fast axis in the plane of the film; nz - the refractive index in the film thickness direction; d - the thickness of the film, in nanometers (nm). 2.4 Ordinary light ordinarylight o light Follow the law of refraction.

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