ASTM F3654-23
(Test Method)Standard Test Method for Non-Subjective Optical Requirement Testing of Plano Protective Eyewear
Standard Test Method for Non-Subjective Optical Requirement Testing of Plano Protective Eyewear
SIGNIFICANCE AND USE
5.1 This test method offers a procedure for evaluation of the refractive components of plano-protective eyewear.
5.2 This test method has been specifically designed for protective eyewear that will not fit into conventional automatic/digital focimeters.
5.3 This test method has been designed to provide a determination of the image formation quality of plano-protective eyewear.
5.4 This test method offers a comprehensive refractive power measurement scanning protocol that measures the refractive power over a total 50 mm2 area in front of each eye. This measurement protocol known as the Multiple Gaze Direction Detailed Scan (MGDDS) measures the refractive powers of the zones of the plano-protective eyewear that are typically used as the wearer performs micro eye movements.
SCOPE
1.1 This test method is used to quantify the amount of refractive power (spherical and cylindrical powers) found in planoprotective eyewear.
1.2 This test method is used to quantify the optical performance of plano-protective eyewear as identified by the weighted root mean square average wavefront error.
1.3 This test method may also be used to measure the refractive powers of other plano-protective eyewear or ocular devices, or both.
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F3654 − 23
Standard Test Method for
Non-Subjective Optical Requirement Testing of Plano
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Protective Eyewear
This standard is issued under the fixed designation F3654; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
INTRODUCTION
The optical testing requirements of plano-protective eyewear rely on subjective evaluation methods
that are negatively impacted by factors such as accommodation, depth of focus, field of view and
resolving power differences that exist in the various optical systems that are used. These challenges
lead to significant variation in the testing results. This test method provides an objective means for
testing the optical requirements of plano-protective eyewear using wavefront analysis.
1. Scope 2. Referenced Documents
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1.1 This test method is used to quantify the amount of
2.1 ANSI/IEA Standard:
refractive power (spherical and cylindrical powers) found in
ANSI/ISEA Z87.1 American National Standard for Occupa-
planoprotective eyewear.
tional and Educational Personal Eye and Face Protection
Devices
1.2 This test method is used to quantify the optical perfor-
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mance of plano-protective eyewear as identified by the
2.2 ISO Standard:
weighted root mean square average wavefront error.
ISO 16321-1 Eye and face protection for occupational use
— Part 1: General requirements
1.3 This test method may also be used to measure the
refractive powers of other plano-protective eyewear or ocular
3. Terminology
devices, or both.
3.1 Definitions:
1.4 Units—The values stated in SI units are to be regarded
3.1.1 total peak-to-valley value (PV)—the maximum vari-
as standard. No other units of measurement are included in this
ance of the wavefront in the observed area.
standard.
3.1.2 root-mean-square (RMS) wavefront error—extent of
1.5 This standard does not purport to address all of the
image deterioration caused by wavefront deformations due to
safety concerns, if any, associated with its use. It is the
its deviation from spherical averaged over the entire wavefront.
responsibility of the user of this standard to establish appro-
3.1.2.1 Discussion—The RMS wavefront error is calculated
priate safety, health, and environmental practices and deter-
as the square root of the difference between the average of
mine the applicability of regulatory limitations prior to use.
squared wavefront deviations minus the square of average
1.6 This international standard was developed in accor-
wavefront deviation.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
3.1.3 intensity weighted root mean square average value
Development of International Standards, Guides and Recom- (WRMS)—the weighted average RMS where higher intensity
mendations issued by the World Trade Organization Technical spots in the pupil center have more weight than lower intensity
Barriers to Trade (TBT) Committee. spots away from the center.
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This test method is under the jurisdiction of ASTM Committee F08 on Sports Available from American National Standards Institute (ANSI), 25 W. 43rd St.,
Equipment, Playing Surfaces, and Facilities and is the direct responsibility of 4th Floor, New York, NY 10036, http://www.ansi.org.
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Subcommittee F08.57 on Eye Safety for Sports. Available from International Organization for Standardization (ISO), ISO
Current edition approved June 1, 2023. Published July 2023. DOI: 10.1520/ Central Secretariat, Chemin de Blandonnet 8, CP 401, 1214 Vernier, Geneva,
F3654-23. Switzerland, https://www.iso.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F3654 − 23
3.1.4 plano-protective eyewear—an optical lens which are 4.2.1 The optical arm of the WFAOT consists of a SHWS
designed to protect the eyes from ocular injuries and hazardous and a 542 nm collimated laser setup. SHWS provide accurate
external factors but provide no corrective power and as such
measurements of the wavefront shape and the intensity distri-
should have a refractive power of 0.00D. bution of optical beams. During operation, light is incident on
a microlens array (MLA), which creates a matrix of focal spots
3.1.5 refractive power—(also known as the optical power) is
on a CMOS camera sensor. The centroid locations of the focal
the degree to which a lens or optical system converges or
spo
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