Magirazi eBlue blocking, iwe unofanirwa kuapfeka here?

Chiedza chebhuruu ipfupi wevelength pakati pe400 ne500nm, inova chikamu chakakosha chechiedza chepanyama.Zvaizorodza kuona denga rebhuruu negungwa rebhuruu.Sei ndichiona denga negungwa zviri bhuruu?Imhaka yekuti chiedza chipfupi cheblue wavelength chinobva kuzuva chinoparadzirwa netwunhu twakasimba nemhute yemvura mudenga chopinda muziso, zvichiita kuti denga riratidzike sebhuruu.Apo zuva rinorova pamusoro pegungwa, masaisai mazhinji anotorwa negungwa, nepo chiedza chebhuruu chiri muurefu hupfupi hwechiedza chinooneka hachibatiki, chichiratidzira muziso uye kuita kuti gungwa riratidzike sebhuruu.

Kukuvadza kwechiedza chebhuruu kunoreva kuti mwenje webhuruu unogona kusvika zvakananga ku fundus, uye chiitiko chephotochemical chinokonzerwa nekufumurwa chinogona kukuvadza retinal rod masero uye retinal pigment epithelial cell layer (RPE), zvichikonzera zera-ane hukama macular degeneration.Asi mushure memakore ekutsvagisa, masayendisiti akaona kuti mapfupi mapfupi echiedza chebhuruu (pasi pe450nm) ndiwo anonyanya kukonzera kukuvadzwa kweziso, uye kukuvadzwa kwacho kunoenderana nenguva uye dhamu rekuratidzwa kwechiedza chebhuruu.

Iwo magetsi emwenje e LED anoshandiswa zvakanyanya muhupenyu hwedu hwezuva nezuva anokuvadza kuchiedza chebhuruu?Marambi e LED anoburitsa mwenje chena nekukurudzira yero phosphor neblue chip.Pasi pemamiriro ekupisa kwemavara emhando yepamusoro, kune crest yakasimba mubhandi rebhuruu rechiedza chechiedza.Nekuda kwekuvapo kwebhuruu mubhendi pazasi 450nm, zvinodikanwa kudzora kupenya kwakanyanya kana kuvhenekera kwe LED mukati menzvimbo yakachengeteka yeyakajairwa mwenje wemukati.Kana mukati me100kcd·m -- 2 kana 1000lx, saka zvigadzirwa izvi hazvikuvadzi kuchiedza chebhuruu.

Inotevera ndiyo IEC62471 yebhuruu mwenje chengetedzo mwero (maererano nemeso anotenderwa kugadzirisa nguva yekugadzika), chiyero ichi chinoshanda kune ese magetsi masosi kunze kwelaser, yakagamuchirwa zvakanyanya nenyika:
(1) Zero ngozi: t > 10000s, kureva kuti, hapana njodzi yechiedza chebhuruu;
(2) Kirasi yenjodzi: 100s≤t <10000s, kubvumira maziso akareba se10000 seconds kutarisa zvakananga pane chiedza pasina kukuvadza;
(3) Chikamu II njodzi: 0.25s≤t <100s, inoda kuti maziso atarise panguva yechiedza chechiedza haigoni kudarika 100 seconds;
(4) Mhando nhatu dzenjodzi: t <0.25s, ziso rinotarisa pachiedza che 0.25 seconds rinogona kuunza njodzi.

Parizvino, marambi anoshandiswa semwenje we LED muhupenyu hwezuva nezuva anotsanangurwa seChikamu Zero uye Chikamu Chekutanga njodzi.Kana ari emhando mbiri dzengozi, ane anosungirwa mavara (" Meso haagone kutarisa ").Njodzi yechiedza chebhuruu chemwenje we LED uye mamwe magetsi akafanana, kana mukati mekudzivirira kwechikumbaridzo, izvi zvitubu zvemwenje uye mwenje zvinoshandiswa nenzira yakajairika, isingakuvadzi maziso evanhu.Masangano ehurumende emudzimba nekunze uye masangano eindasitiri yekuvhenekesa vakaita tsvakiridzo yakadzama uye kuenzanisa kuyedza pane photobiosafety yemarambi akasiyana uye masisitimu emwenje.Shanghai Lighting Product Quality Supervision uye Inspection Station yakaedza 27 LED samples kubva kwakasiyana masosi, gumi nemana ayo ari echikamu chisina ngozi uye gumi nematatu ayo ari ekutanga-kirasi njodzi.Saka yakachengeteka.

Kune rumwe rutivi, tinofanirawo kubhadhara kune zvinobatsira zvechiedza chebhuruu pamuviri.Masayendisiti akawana kuti light-sensitive retinal ganglion cells (ipRGC) inoratidzira opmelanin, iyo inokonzera kusaona kwehupenyu hwehupenyu mumuviri uye inodzora circadian rhythms.Iyo optic melanin receptor inonzwa pa 459-485 nm, inova chikamu cheblue wavelength.Chiedza chebhuruu chinogadzirisa rhythm ye circadian senge kurova kwemoyo, kusvinura, kurara, tembiricha yemuviri uye gene expression nekukanganisa kuburitswa kweoptic melanin.Kana iyo circadian rhythm ikavhiringidzwa, yakaipa kwazvo kune hutano hwevanhu.Chiedza chebhuruu chinonziwo kurapa mamiriro akaita sekuora mwoyo, kufunganya uye dementia.Chechipiri, chiedza chebhuruu chinoenderanawo nekuona usiku.Kuona usiku kunogadzirwa nemasero erod anonzwa chiedza, nepo chiedza chebhuruu chinonyanya kushanda pamasero etsvimbo.Kunyanya kudzivirira kwechiedza chebhuruu kunotungamira kuderera kwekuona kwehusiku.Zviyedzo zvemhuka zvakaonawo kuti mwenje-pfupi-wavelength sechiedza chebhuruu unogona kutadzisa myopia mumhuka dzekuyedza.

Zvese mune zvese, hatifanire kuwedzeredza zvinokuvadza zvechiedza chebhuruu pameso.Zvemagetsi zvemhando yepamusoro zvinotosefa kunze kunokuvadza short-wave blue light, izvo zvisingakuvadze.Magirazi ekuvharira ebhuruu akakosha chete kana akafumurwa kune yakakwira uye nguva refu yechiedza chebhuruu, uye vashandisi havafanire kutarisa zvakananga kune yakajeka nzvimbo masosi.Pakusarudzamagirazi eblue-blocking, unofanira kusarudza kudzivirira chinokuvadza short-wave blue light pazasi 450nm uye kuchengetedza bhuruu rinobatsira riri pamusoro pe450nm mubhendi refu.