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GB/T 11168-2009: Image quality of optical systems -- Method of determination
Status: Valid GB/T 11168: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11168-2009 | English | 279 |
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3 days [Need to translate]
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Image quality of optical systems -- Method of determination
| Valid |
GB/T 11168-2009
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| GB/T 11168-1989 | English | 479 |
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Image quality of optical systems--Method of determination
| Obsolete |
GB/T 11168-1989
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PDF similar to GB/T 11168-2009
Basic data | Standard ID | GB/T 11168-2009 (GB/T11168-2009) | | Description (Translated English) | Image quality of optical systems -- Method of determination | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N30 | | Classification of International Standard | 37.020 | | Word Count Estimation | 12,180 | | Date of Issue | 2009-09-30 | | Date of Implementation | 2009-12-01 | | Older Standard (superseded by this standard) | GB/T 11168-1989 | | Quoted Standard | JB/T 6263-1992; JB/T 7473-1994; JB/T 9328-1999 | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 10 of 2009 (No. 150 overall) | | 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 optical system used to evaluate the image quality of the star point, resolution, geometric aberrations and wavefront aberration test methods. This standard applies to the application of the visible spectrum region infinity imaging optical system, and limited afocal optical system from the imaging optical system. Application of other nearby spectral region can refer to the use of the optical system. | GB/T 11168-2009: Image quality of optical systems -- Method of determination---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.
Image quality of optical systems.Method of determination
ICS 37.020
N30
National Standards of People's Republic of China
Replacing GB/T 11168-1989
Optical system quality test method
2009-09-30 release
2009-12-01 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 replaces GB/T 11168-1989 "Optical system quality test method".
The main differences between this standard and GB/T 11168-1989 are.
- standardize the reference standard in Chapter 2 of GB/T 11168-1989;
--- the GB/T 11168-1989 Chapter 3, Chapter 4, Chapter 5 and Chapter 6 into the same chapter, the title changed to "quality test side
law".
Appendix A of this standard is a normative appendix.
This standard is proposed by the China Machinery Industry Federation.
This standard is nationalized by the National Committee for the Standardization of Optics and Photonics (SAC/TC103).
This standard is responsible for drafting units. Shanghai Polytechnic University.
This standard participates in the drafting unit. Nanjing Jiangnan Yongxin Optical Co., Ltd., Ningbo Yongxin Optics Co., Ltd., Suzhou Yiguang Instrument
Limited company.
The main drafters of this standard. Feng Qionghui, Zhang Huixian.
This standard replaced the previous version of the standard release.
--- GB/T 11168-1989.
Optical system quality test method
1 Scope
This standard specifies the test methods used to evaluate the star, resolution, geometric aberration and wave aberration of the optical system.
This standard is applicable to infinity imaging optics systems, far-focus optical systems and limited-distance imaging optics systems for use in visible spectral regions.
The use of optical systems for other adjacent spectral regions may be used.
2 normative reference documents
The terms of the following documents are hereby incorporated by reference into this standard. Whichever is the date of the reference file, which is followed by all
(Excluding corrigenda) or revisions do not apply to this standard, however, encourage the parties to reach an agreement under this standard
Whether you can use the latest version of these files. For undated references, the latest edition applies to this standard.
Photographic Lens - Photographic Resolution Test Specimen
Photographic lens resolution test chart JB/T 7473-1994
JB/T 9328-1999 resolution board
3 quality test method
3.1 Star point
3.1.1 Principle
According to the star point (point light source) after the measured system imaging, in the image plane and image before and after the different sections of the diffraction pattern of light intensity distribution (ie star
Like the intensity distribution) to determine the image quality.
The light intensity distribution of the ideal optical system on the image plane is the value of the complex amplitude distribution function (referred to as pupil function)
Transform the square of the mold. In the case of a circular pupil, the distribution of the light intensity distribution (Airy) is given by (1) and (2).
I = IO
2J1 (V) [] V
(1)
V = 2πλ
Where.
IO --- measured by the system of the star point of the center of the diffraction light intensity;
J1 --- 1st order Bessel function;
V - complex amplitude distribution function;
A - measured system pupil radius;
X, y - the coordinates of the geometric image points.
Figure 1 shows the intensity distribution of the meridional surface near the ideal image plane according to the diffraction theory. Through the optical axis
The diffraction pattern of the diffraction intensity on the cross section (see Fig. 2) should have the same diffraction pattern on the symmetrical cross section before and after the image plane.
For optical systems with aberrations, the intensity distribution of the starlike image is different from that of the patch. According to its star point diffraction pattern and image plane attached
Nearly different sections of the diffraction pattern changes, you can determine the quality of good or bad.
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