near ultraviolet การใช้

• COS has two channels, the Near Ultraviolet ( NUV ) covering 170 320 nm.
• Some authors Spectroscopic investigations are limited to the visible-near ultraviolet region where exciplex lasers operate.
• :Melanin absorbs strongly in the near ultraviolet, and not much at all in the infrared.
• It relies on inelastic scattering, or Raman scattering, of monochromatic light, usually from a laser in the near ultraviolet range.
• With a mirror, Hubble's four main instruments observe in the near ultraviolet, determining the rate of expansion of the universe.
• The SBUV / 2 measures solar irradiance and Earth radiance ( backscattered solar energy ) in the near ultraviolet spectrum ( 160 to 400 nm ).
• I don't know whether the channels should be all in the visible light range, or also in the near infrared or near ultraviolet.
• Still, much of the reported research and applications, utilizing the photoacoustic effect, is concerned with the near ultraviolet / visible and infrared spectral regions.
• "' Xenon monochloride "'( XeCl ) is an excimer which is used in excimer lasers emitting near ultraviolet light at 308 nm.
• For this reason, the near infrared region of the spectrum is commonly incorporated as part of the " optical " spectrum, along with the near ultraviolet.
• The polarization also depends strongly on the wavelength, and for near ultraviolet 3000 ?the light near the limb is 100 times more polarized than red light at 7000 ?
• The Faint Object Spectrograph was one of the 4 original axial instruments aboard the HST . FOS was designed to make spectroscopic observations of astrophysical sources from the near ultraviolet to the near infrared.
• Feces and urine, which reflect ultraviolet light, are important to raptors such as kestrels, who can see the near ultraviolet and thus find their prey by their middens and territorial markers.
• Most film has relatively low sensitivity to colors outside the visible range, so light spread in the near ultraviolet ( UV ) or near infrared ( IR ) rarely has a significant impact on the image recorded.
• White LEDs can also be made by coating near ultraviolet ( NUV ) emitting LEDs with a mixture of high efficiency europium based red and blue emitting phosphors plus green emitting copper and aluminium doped zinc sulfide ( ZnS : Cu, Al ).
• For this purpose the UBV system is widely used, in which the magnitude is measured in three different wavelength bands : U ( centred at about 350 nm, in the near ultraviolet ), B ( about 435 nm, in the blue region ) and V ( about 555 nm, in the middle of the human visual range in daylight ).
• The photoreceptor cells of the retina are sensitive to near ultraviolet light and people lacking a lens ( a condition known as aphakia ) see near ultraviolet light ( down to 300 nm ) as whitish blue, or for some wavelengths, whitish violet, probably because all three types of cones are roughly equally sensitive to ultraviolet light, but blue cones a bit more.
• The photoreceptor cells of the retina are sensitive to near ultraviolet light and people lacking a lens ( a condition known as aphakia ) see near ultraviolet light ( down to 300 nm ) as whitish blue, or for some wavelengths, whitish violet, probably because all three types of cones are roughly equally sensitive to ultraviolet light, but blue cones a bit more.
• The paper detailing the results reports measurement of " geometric albedos of Ag = 0.40 ?0.12 at 290 450 nm [ near ultraviolet to blue in the visible light region of the electromagnetic spectrum ] and Ag < 0.12 at 450 570 nm . . . with sodium absorption suppressing the scattered light signal beyond < " 450 nm as predicted by models of hot Jupiter atmospheres ."
• The ozone layer has little effect on the longer UV wavelengths called UV-A ( 315 400 nm ), but this radiation does not cause sunburn or direct DNA damage, and while it probably does cause long-term skin damage in certain humans, it is not as dangerous to plants and to the health of surface-dwelling organisms on Earth in general ( see ultraviolet for more information on near ultraviolet ).