ANSI Z80.3:2018 pdf download.Ophthalmics一Nonprescription Sunglass and Fashion Eyewear Requirements.
ANSI Z80.3 applies to all nonprescription sunglasses and fashion eyewear, normally used for casual, dress, and recreational purposes, having lenses of substantially piano power. This standard specifically excludes products covered by ANSI Z87.1, ANSI Z80.1, and those covered within the ASTM F08.57 committee. Sunglass needs for aphakics may not be met by this standard.
1.2 Purpose
The purpose of this standard is to establish standards for noncorrective (essentially piano power) lenses that are intended for attenuation of light and for fashion eyewear, and for the flammability and durability of frames and lenses. These products are commonly called sunglasses, and they are not designed to be industrial safety eyewear as defined in ANSI Z87.1, or to provide corrective prescriptions as defined in ANSI Z80.1, or to provide protection for selected sports as defined within ASTM F08.57 committee standards, or to provide protection when making direct observation of the sun, such as for viewing a partial or annular solar eclipse. Lenses covered by this standard are not intended for use under conditions of reduced illumination; however, variable tint lenses that fade to a luminous transmittance greater than 75% are covered. Lenses with less than 75% luminous transmittance anywhere on the lenses are not suitable for driving under low light conditions, such as but not limited to twilight or night.
2 Normative References
The following standards contain provisions that, through reference in this text, constitute provisions of this American National Standard. All standards are subject to revision, and parties to agreements based on this American National Standard are encouraged to apply the most recent editions of the standards indicated below.
ANSI Z80.1, Ophthalmics — Prescription Ophthalmic Lenses — Recommendations
ANSI Z80.5, Ophthalmics — Requirements for ophthalmic frames
ANSI Z80.17, Focimeters
ANSI Z87.1, Occupational and educational eye and face protection devices
3 Definitions
3.1 Capable of withstanding an impact test
The ability of a lens to withstand statistically significant sample (for Zi .4) of each production batch, or manufacturing process. Capability any feasible stage of manufacture,
3.2 Reference point
impact as determined by 100% testing or by testing of a example, conforming to the requirements of ANSI/ASQC at the option of the manufacturer, as an integral part of the of withstanding an impact test is determined by testing at as described in 5.1.1 and 5.1.2.
The point on a lens blank, unmounted lens, or finished lens at which refractive properties, and around which transmittance properties, are specified and measured.
3.2.1 Intended visual axis
When specified, the point on a lens coincident with the wearer’s interpupillary distance or other known or presumed line of sight.ANSI Z80.3 pdf download.