UV-A
Aging skin culprit
UV-A is the longest-wavelength form of ultraviolet radiation, spanning roughly 315 to 400 nanometers.
Unlike UV-B and UV-C, most UV-A passes through the atmosphere and penetrates deep into the skin, contributing to aging and some skin cancers.
Tanning beds rely primarily on UV-A.
Also written UVA.
UV-caused skin deterioration
- wrinklesSurface lines from folding
- hyperpigmentationLocalized skin darkening condition
- sunspotsDark patches on star
- collagenStructural body protein
elastin · fine lines · age spots · dermis · epidermis · melanoma · basal cell carcinoma · DNA damage
Ultraviolet radiation source
- fluorescenceLight emitted after absorption
- art authenticationDetermining if works are genuine
- invisible inkHidden writing fluid
- luminescenceHeatless light emission
Energy emitted by sun
- electromagnetic spectrumAll radiation frequencies ordered
- wavelengthSpatial repetition interval
- ozone layerAtmospheric UV filter
- atmosphereGaseous layer around planets
visible light · photons · irradiance · dawn · dusk · window glass
Natural coloring compound
- bronzingAcquiring sun-kissed color
- sunbedUV lamp lounger
- tanning salonUV bed establishment
- tanning boothUV light enclosure for darkening skin
spray tan · self-tanner · dihydroxyacetone · base tan · tan lines · tanning lotion · tanning mitt · bronzer
Able to kill microbes
- sterilizationComplete elimination of microbes
- photocatalysisLight-activated reaction acceleration
- titanium dioxideWhite inorganic pigment compound
- water purificationRendering liquid safe to drink
air purification · antimicrobial · decontamination · sanitization · bacteria · virus · cleanroom
UV-blocking skin cream
- SPFUltraviolet defense measure
- broad-spectrumEffective across many varieties
- zinc oxideInorganic UV-blocking compound
- titanium dioxideWhite inorganic pigment compound
antioxidants · vitamin C · retinoids · sun hat · shade · reapplication · moisturizer · facial cream
photoaging
UV-caused skin deterioration
- wrinklesSurface lines from folding
- hyperpigmentationLocalized skin darkening condition
- sunspotsDark patches on star
collagen · elastin · fine lines · age spots · dermis · epidermis · melanoma · basal cell carcinoma · DNA damage · free radicals
blacklight
Ultraviolet radiation source
- fluorescenceLight emitted after absorption
- art authenticationDetermining if works are genuine
- invisible inkHidden writing fluid
solar radiation
Energy emitted by sun
- electromagnetic spectrumAll radiation frequencies ordered
- wavelengthSpatial repetition interval
- ozone layerAtmospheric UV filter
atmosphere · visible light · photons · irradiance · dawn · dusk · window glass
melanin
Natural coloring compound
- bronzingAcquiring sun-kissed color
- sunbedUV lamp lounger
- tanning salonUV bed establishment
tanning booth · spray tan · self-tanner · dihydroxyacetone · base tan · tan lines · tanning lotion · tanning mitt · bronzer · exfoliation
germicidal
Able to kill microbes
- sterilizationComplete elimination of microbes
- photocatalysisLight-activated reaction acceleration
- titanium dioxideWhite inorganic pigment compound
water purification · air purification · antimicrobial · decontamination · sanitization · bacteria · virus · cleanroom
sunscreen
UV-blocking skin cream
- SPFUltraviolet defense measure
- broad-spectrumEffective across many varieties
- zinc oxideInorganic UV-blocking compound
titanium dioxide · antioxidants · vitamin C · retinoids · sun hat · shade · reapplication · moisturizer · facial cream · sunglasses
- Electromagnetic Wavesvisible light, radio waves, infrared light, ultraviolet light, gamma rays
- rayos UV
- radiation
- photobiologyphotoreceptor, photoreceptors, photosynthesis, phototropism, photoreception
UV-AUV-C
Germicidal light spectrum
UV-B · gamma rays · X-rays · infrared · radio waves
UV-Ainfrared
Heat-bearing electromagnetic waves
radio waves · visible light · microwaves · X-rays · gamma rays