SOLUTION: An ultraviolet light irradiation device has a light source that emits ultraviolet light having a main emission wavelength of 190 nm to 235 nm, a housing that houses the light source, and the ultraviolet light that is emitted from the light source. It is provided with a take-out ...
Different photoreceptors(视细胞) in the eyes can affect how we see the world around us.Animals including bees and some birds can see ultraviolet light(紫外线) that human eyes cannot see. By reconstructing the colors that we know animals can see, scientists can learn more about how they commun...
Finding the right pair is key to your comfort, whether you're driving to work or climbing a mountain. All sunglasses offered at REI block 100% of ultraviolet light. UV protection information should be printed on the hangtag or price sticker of any sunglasses you buy, no matter where you ...
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Many birds and fish have four types of cones, enabling them to see ultraviolet light, or light with wavelengths shorter than what the human eye can perceive. Some insects can also see in ultraviolet, which may help them see patterns on flowers that are completely invisible to us. To a ...
But what if trout can see a wider range of light wavelengths than we can—what about ultraviolet (UV)? Recently, fly tiers have used materials treated with dyes to reflect UV light. Do they more accurately imitate the trout’s prey? Humans don’t have UV-sensitive cones in our eyes, th...
Even though the sun is 93 million miles away, the ultraviolet UV rays it emits can be a factor in causing cataracts, macular degeneration and growths on the eye, including cancer. There are two types of UV light you need to look out for: UVB Rays These rays are super intense and ...
The photopolymer is sensitive to ultraviolet light, so when the laser touches the photopolymer, the polymer hardens. If you stand next to the stereolithograph apparatus (SLA), you can actually see the laser as it builds each layer. SLA Materials A few primary materials include photosensitive poly...
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This image of the Sun in extreme ultraviolet light was taken by the Solar Dynamics Observatory on March 30, 2022. Several examples of solar activity are labelled, including a powerful solar flare that exploded on that day. Credit...