No, 3D Movie Glasses Are Not Like Eclipse Glasses



3D Movie Glasses


On the off chance that some asked me what the hot, "must have" result existing apart from everything else was, I would reply "obscure glasses." With the Great American Eclipse just a couple of days away, I am supported by the way that individuals are presently focusing and looking for glasses to see the heavenly shadow follow up on August 21st. One of inquiries that I have gotten, as a researcher, over and over is whether obscure glasses are the same as 3-D motion picture glasses utilized as a part of theaters. The appropriate response is "no." 

Obscuration glasses are a vital piece of the survey understanding for the Great American Eclipse, and the anticipated a minute ago surge has been to some degree entertaining. I have gotten messages, messages, and calls about glasses on account of the review occasion that I composed at the University of Georgia. NASA and other dependable overshadowing disapproved of associations have sounded the alert about the threats of survey the shroud without appropriate gear. NASA's site calls attention to, 

"It's presence of mind not to gaze straightforwardly at the Sun with your bare eyes or hazard harming your vision, and that guidance remains constant for a mostly obscured Sun. In any case, just with exceptional reason sun powered channels, for example, overshadow glasses or a handheld sunlight based watcher, you can securely take a gander at the Sun. NASA prescribes that individuals who intend to see the shroud should check the security validness of survey glasses to guarantee they meet essential appropriate wellbeing seeing gauges. 

NASA has suggested that survey glasses and other sun powered watchers meet the ISO 12312-2 confirmation standard. A rundown of trustworthy merchants for the glasses can be found at the American Astronomical Society (AAS) site. You may be pondering, "what's so uncommon about the overshadowing glasses, and how are they not the same as 3-D motion picture glasses?.........they beyond any doubt seem to be like me." 

Sun powered overshadowing glasses are considerably darker than standard glasses or shades. How dim? Most sources say that they are in regards to 100,000 times darker. Be that as it may, it is their structure that genuinely emerges. As per data distributed in The Orange County Register, the glasses are produced using a dark polymer (a sap imbued with carbon particles). This creation pieces all unmistakable light and the greater part of the bright (UV) radiation. Standard shades make an entirely decent showing with regards to with UV radiation however just channels under 20 percent of obvious light. 

So what can happen? Sunlight based retinopathy can happen. This happens when splendid light soaks the retina, which is situate at the back of the eyeball. As indicated by Livescience.com, 

"The retina is home to the light-detecting cells that make vision conceivable. When they're over-invigorated by daylight, they discharge a surge of correspondence chemicals that can harm the retina. This harm is frequently easy, so individuals don't understand what they're doing to their vision." 

Sun based retinopathy can be transitory or lasting, and the indications extend from loss of vision to misshaped vision as per Preventblindness.org. 

Overshadowing glasses are intended to anticipate immersion of the retina with light while taking a gander at a shroud. 3-D film glasses work in a totally extraordinary manner. To clarify how they function, I present the idea of stereoscopy. More or less, with a 3D motion picture, the projector sends two pictures to a similar screen and after that the glasses are utilized to isolate them and give profundity or the third measurement. Straight Polarized Stereoscopy is a typical approach to accomplish the "3D" impact. Mental Floss portrays it along these lines, 

"Two pictures are anticipated through polarizers of two unique introductions, regularly 45 and 135 degrees in respect to the skyline. The anticipated pictures are then separated utilizing polarizer movies in the focal points of your glasses on the way to your eyes. Along these lines, one picture is prohibited from your left eye while the other picture is avoided from your privilege." 

Circularly spellbound methods have likewise progressively supplemented the direct polarization procedure as of late. In this procedure, as indicated by the same Mental Floss article, 

"one of the pictures is anticipated utilizing light waves that follow out a left-gave winding, and the other utilizing light that follows out a privilege gave winding. Every focal point contains a quarter wave plate, which is an aloof gadget that changes the two counterspiraling waves into two opposite direct waves." 

Toward the finish of that procedure, standard straight polarization isolates the pictures from each eye, individually. 

The key point here is that the focal points in 3D glasses have no properties that will secure your eyes while seeing a sun powered overshadowing. By a similar token, there is nothing about the carbonized focal points of obscuration glasses that will bolster the ideas of stereoscopy. My companion and partner Dave Jones of Stormcenter Communications, Inc is working with NASA on obscure effort and communicates, he nails it via web-based networking media, 

"It would be ideal if you remind your watchers consistently until the obscuration on Monday that they MUST wear overshadow glasses to take a gander at the sun directly...or utilize pinhole projection to see the shroud. I am hearing that a few people think they needn't bother with obscure glasses on the off chance that they are not in totality. Shades don't work so don't ease up on this exhortation. This is legitimate for wherever in North America."

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