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GB/T 27510-2011 English PDF

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GB/T 27510-2011: Fresnel lens in DLP, CRT, LCOS and LCD projection television screen
Status: Valid
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GB/T 27510-2011English279 Add to Cart 3 days [Need to translate] Fresnel lens in DLP, CRT, LCOS and LCD projection television screen Valid GB/T 27510-2011

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Basic data

Standard ID GB/T 27510-2011 (GB/T27510-2011)
Description (Translated English) Fresnel lens in DLP, CRT, LCOS and LCD projection television screen
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard N43
Classification of International Standard 37.040.10
Word Count Estimation 12,10
Date of Issue 2011-10-31
Date of Implementation 2012-01-01
Quoted Standard GB/T 2410-2008; GB/T 13384; JB/T 9329
Regulation (derived from) Announcement of Newly Approved National Standards No. 15 of 2011
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
Summary This standard specifies the DLP, CRT, LCOS, LCD projection TVs and projection display Fresnel lens (hereinafter referred to as the lens) the shape and structure, technical requirements, test face methods, inspection rules and signs, packaging, transportation and storage. This standard applies to 43 "~ 150" DLP, CRT, LCOS, LCD projection television screens and projection systems using Fresnel lenses.

GB/T 27510-2011: Fresnel lens in DLP, CRT, LCOS and LCD projection television screen

---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.
Fresnel lens in DLP, CRT, LCOS and LCD projection television screen ICS 37.040.10 N43 National Standards of People's Republic of China DLP, CRT, LCOS and LCD projection TVs Fresnel lens screen FresnellensinDLP, CRT, LCOSandLCDprojection Issued on. 2011-10-31 2012-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard is proposed and managed by China Machinery Industry Federation. This standard by the Qinhuangdao Audio-Visual Machinery Research Institute is responsible for drafting. This standard was drafted. Qinhuangdao Audio-Visual Machinery Research Institute, Chengdu Pfister Technology Co., Ltd. Qinhuangdao Changlong screen. The main drafters of this standard. Dengrong Wu, Zhang Yimin, Chen Yijiang, Wuqing Fu, Wang Hongwei, Wong Cho Xiong, Zhang Fenglou, Zhang.

Introduction

Fresnel lens is a thin planar optical lens, the surface is a series of concentric circles of small and narrow, but the same focal length, from And to ensure that light can be centralized at the center of focus. It can be seen as two concentric circles between each a separate small lens, the light adjustment Into parallel light or converging. This eliminates the part-spherical lens aberrations, to achieve high-quality images provide low-cost solutions. Philippines Fresnel lens is the best application in the projection system collimated and the condenser, its advantage is straight thereby significantly increasing the overall focus or adjust the light by quasi Shows brightness. DLP, CRT, LCOS and LCD projection TVs Fresnel lens screen

1 Scope

This standard specifies the DLP, CRT, LCOS, LCD projection televisions and projection display Fresnel lens (hereinafter referred to as lens) shape And construction, technical requirements, test methods, inspection rules and signs, packaging, transportation and storage. This standard applies to 43 "~ 150" DLP, CRT, LCOS, LCD projection television screen and projection system with a Fresnel lens.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 2410-2008 Determination of transparent plastic light transmittance and haze (ASTMD1003.2007, MOD) GB/T 13384 mechanical and electrical products packaging General technical conditions JB/T 9329 Instrumentation transport, transportation, storage and basic environmental conditions and test methods

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Transmittance totaltransmittance Through flux ratio and flux incident on the specimen sample, expressed as a percentage. 3.2 Haze haze And through the specimen deviates from the incident direction of the scattered light flux transmitted luminous flux ratio, expressed as a percentage (for GB/T 2410- 2008, the only deviation from the direction of the incident light is scattered more than 2.5 ° for calculating the flux haze). 3.3 Focal length focallength Parallel light beam through the lens from the spindle, on the other side of the lens is one o'clock converging lens focus. The geometric center of the lens as The optical center, focal point of the lens is called the nominal distance optical center of the lens focal length. 3.4 Pitch pitch Distance between the lens of the fine structure of two adjacent grooves between the top or root groove. 3.5 Working angle slopeangle Face angle between the plane of the lens and the lens fine structure. see picture 1. 3.6 Interference angle draftangle The angle between the lens plane of the lens surface and the interference fine structure.

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