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GB/T 38256-2019 English PDF

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US$279.00 · In stock
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GB/T 38256-2019: Test method for optical axis parallelism of multiple optical paths
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 38256-2019	279	Add to Cart	3 days	Test method for optical axis parallelism of multiple optical paths	Valid

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Basic data

Standard ID: GB/T 38256-2019 (GB/T38256-2019)
Description (Translated English): Test method for optical axis parallelism of multiple optical paths
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L50
Classification of International Standard: 17.180.99
Word Count Estimation: 14,166
Date of Issue: 2019-12-10
Date of Implementation: 2020-07-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 38256-2019: Test method for optical axis parallelism of multiple optical paths

---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.
Test method for optical axis parallelism of multiple optical paths ICS 17.180.99 L50 National Standards of People's Republic of China Multi-optical path optical axis parallelism test method 2019-12-10 release 2020-07-01 implementation State Administration of Market Supervision Published by the National Standardization Management Committee

Foreword III 1 Scope 1 2 Terms and definitions 1 3 Test method classification and principle 1 3.1 Test method classification 1 3.2 Full-caliber coverage test principle 1 3.3 Test principle of beam splitting method 2 4 Test equipment 2 4.1 Equipment selection 2 4.2 Equipment requirements 2 5 Test environment 3 5.1 Indoor test environment 3 5.2 Field test environment 3 6 Test Procedure 4 6.1 Optical axis parallelism test of visible/infrared imaging system 4 6.2 Parallelism test of the optical axis of the laser emission system and the optical axis of the infrared imaging system 4 6.3 Parallelism test of the optical axis of the laser emission system and the optical axis of the visible imaging system 4 7 Test data processing 4 Appendix A (Normative Appendix) Pentaprism Verification Method for Parallelism of Large Beams Appendix B (Normative Appendix) Beam Splitting Component Calibration Method 7 Appendix C (Informative) Test Record of Optical Parallelism 8

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. Please note that some elements of this document may involve patents. The issuer of this document is not responsible for identifying these patents. This standard is proposed by the Chinese Academy of Sciences. This standard is under the jurisdiction of the National Technical Committee for Photoelectric Measurement Standardization (SAC/TC487). This standard was drafted. Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun University of Science and Technology, Microelectronics, Chinese Academy of Sciences Institute, Institute of Optoelectronics, Chinese Academy of Sciences. The main drafters of this standard. Ye Lu, Shen Xiangheng, He Jing, Zhang Lei, Zhou Weihu, Wu Jin, Lu Yonghong. Multi-optical path optical axis parallelism test method

1 Scope

This standard specifies the classification and principle of test methods, test equipment, test environment, test procedures and test numbers for the optical axis parallelism of multiple optical paths. It is processed. This standard applies to the testing of the optical axis parallelism of multi-optical-path optoelectronic equipment with visible and infrared imaging systems and laser emission systems.

2 terms and definitions

The following terms and definitions apply to this document. 2.1 Multiple optical path optoelectronic equipment multipleopticalpathsoptoelectronicequipment Those with two or more visible/infrared imaging systems at the same time, or laser emission systems and visible/infrared imaging systems at the same time Optoelectronic equipment. 2.2 Optical axis parallelism Consistency of multiple optical paths pointing at infinite targets. 2.3 Pixel angular resolution The ratio of the detector's single pixel size to the focal length of the optical system. 2.4 Laser to infrared target lasertoinfraredtarget A device that converts a beam emitted by a laser emission system into a hot spot that can be received by an infrared imaging system.

3 Test method classification and principle

3.1 Classification of test methods Test methods fall into two categories. a) full caliber coverage method; b) Beam splitting method. 3.2 Full-caliber coverage test principle Align the parallel beams emitted by the large-diameter parallel light tube to the systems in the multi-optical device of the multi-path under test at the same time to achieve the optical axis of each system Parallelism test. Ensure that the clear aperture of the parallel light pipe completely covers the clear aperture of each system. The principle of full-caliber overlay method is shown in Figure 1. As shown. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 38256-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 38256-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 38256-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 38256-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.