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发帖数: 1035 | 1 观测日食的安全眼镜需要能减少可见光，并且阻挡红外和紫外。
要达到ISO 12312-2 标准。
可靠品牌：https://eclipse.aas.org/resources/solar-filters
Solar Viewer Brands
American Paper Optics (Eclipser) / EclipseGlasses.com / 3dglassesonline.com
APM Telescopes (Sunfilter Glasses)*
Baader Planetarium (AstroSolar Silver/Gold Film)* [see note 1]
Celestron (EclipSmart Glasses & Viewers)
DayStar (Solar Glasses)
Explore Scientific (Solar Eclipse Sun Catcher Glasses)
Halo Solar Eclipse Spectacles
Jaxy Optical Instrument Co., Ltd.* [see note 2]
Lunt Solar Systems (SUNsafe SUNglasses) [see their unique kid-size eclipse
glasses]
Meade Instruments (EclipseView Glasses & Viewers)
Rainbow Symphony (Eclipse Shades)
Seymour Solar (Helios Glasses)
Solar Eclipse International / Cangnan County Qiwei Craft Co.*
Thousand Oaks Optical (Silver-Black Polymer & SolarLite)
TSE 17 / 110th.de (Solar Filter Foil)*
更多信息：https://eclipse.aas.org/eye-safety/iso-certification
Short Answer
We used to say that you should look for evidence that they comply with the
ISO 12312-2 international safety standard for filters for direct viewing of
the Sun. But now the marketplace is being flooded by counterfeit eclipse
glasses that are labeled as if they're ISO-compliant when in fact they are
not. So now we suggest that you make sure you get (or got) your eclipse
viewers from one of the suppliers listed on our Reputable Vendors of Solar
Filters & Viewers page.
Long Answer
The #1 rule for observing a solar eclipse, or for looking directly at the
Sun at any other time, is safety first.
As noted elsewhere on this site, with one exception, it is never safe to
look directly at the Sun without a special-purpose safe solar filter. That
exception is during totality, when the Moon completely blocks the dazzlingly
bright face of the Sun. On August 21, 2017, this will happen only within
the roughly 70-mile-wide path of the Moon's dark inner shadow from Oregon to
South Carolina — and only for a minute or two. Before and after totality,
and at all times outside the path of totality, you must use a special-
purpose safe solar filter when looking directly at the Sun.
Eclipse Viewers"Special-purpose" means designed exclusively for looking
directly at the everyday Sun. Filters for direct viewing of the Sun are
typically sold in the form of wearable “eclipse glasses” or "eclipse
shades" or as solar viewing cards that you hold in your hand. What makes
them special is that they reduce sunlight to safe levels so that you don't
injure your eyes. Our daytime star shines about a half million times
brighter than the full Moon in visible light and emits potentially harmful
ultraviolet (UV) and infrared (IR) radiation too. Looking directly at the
Sun through anything that isn't specially made to deal with all that visible
light and invisible radiation is a recipe for serious eye injury, perhaps
even blindness. Note that special-purpose solar filters are many thousands
of times darker than ordinary sunglasses! |
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