SAFE FOR DIRECT SOLAR VIEWING - Thousand Oaks Optical Solar Eclipse Viewer (Card)
About Thousand Oaks Optical's Solar Eclipse Glasses
Safely view the sun anytime and during all partial phases of an eclipse (viewer required for all phases of annular eclipse). Thousand Oaks Optical's exclusive high quality black polymer substrates provide superior safety features, sharper solar images, and pleasing orange solar image. All solar eclipse viewers meet CE/ISO safety requirements. The transmission is 1/1,000th of 1% (Optical Density OD 5). More than 20 million of their solar viewers and glasses have been sold over the years.
Dimensions: Full card: 3" x 5" (76mm x 125mm); Viewing substrate area: 1" x 3.86" (25.4mm x 98mm). Made of sturdy paperboard.
About Thousand Oak's Solar Film Used in These Glasses
BLACK POLYMER: Exclusive Thousand Oaks Optical formula developed solely for SAFE solar observation. Unlike metallized Mylar (commonly used in food packaging), this polymer film gives a SHARP pleasing orange image versus unnatural pale blue. Mylar also reflects your eyes in the mirror like surface making it difficult to see the sun. And contrary to claims by some manufacturers, two layers does not guarantee no pinholes in the coatings. Simply hold a Mylar viewer at arms length, close to a light bulb, to see this defect. The protective properties of this Black Polymer are throughout the substrate so there is never a concern about safety.
About the Company
Thousand Oaks Optical is a leading US-based manufacturer of solar filters and films. They have been making these products for over 35 years, and their products have been used by NASA aboard the Space Shuttle. Other professional users include: ABC, BBC CBS, NBC, CNN, NOVA, The Discovery Channel, National Geographic and most major universities and observatories throughout the world.
Never look at the sun without special eye protection. When viewing the eclipse, use this viewer at all times when any part of the sun is visible. For direct, unmagnified viewing only. Do not look into an unfiltered telescope with this viewer.