Taw qhia txog lub teeb kev paub

Everyone's response to light is different. For the investigation of visible light, the dull level of 100 people is usually used, and the total is uniform. Animal eyes diverge from the sense of light and shade. Insects are slow to ultraviolet and slow to polarized light.

1. Lub teeb ci ntsa iab

Optical instruments feem ntau yog tsim raws li tib neeg lub qhov muag.

Feem ntau lub teeb incandescent yog qis dua 2800 degrees, thiab bromine tungsten teeb yog nyob rau ntawm txoj kev hlub tshua ntawm 3200 degrees.

Feem ntau, muaj ob txoj kev flash. Ib khub ntawm cov khoom cuam tshuam yog flashed los ntawm X-Y txoj kev.

Muaj lub khob hliav qab -zoo li lub hlwb thiab pas nrig- zoo li cov hlwb hauv tib neeg retina. Qws- cov hlwb zoo li npub mus rau lub teeb thiab ntxoov ntxoo, tsis npub rau lub suab nrov, kev txav siab thiab kev ntxub ntxaug ntau. Nyob rau hauv qhov tsaus ntuj, nws yog feem ntau xav tias pas nrig - zoo li lub hlwb ua lub luag haujlwm hauv kev yaum. Rau cov tsiaj, tib neeg lub qhov muag tsis tshua pom kev thaum hmo ntuj.

2. Spectrum ntawm domestic teeb qhov chaw

Lub teeb hluav taws xob ib txwm siv cov xim kub flash.

Ningbo buried manufacturers searched out people's slowness to brilliance, with a wavelength range of about 380 nm to 760 nm.

3. Tib neeg qhov muag

Lub khob hliav qab yog qeeb rau lub suab nrov, tsis tshua muaj kev txav mus los thiab tsis tshua muaj kev ntxub ntxaug. Tib neeg lub qhov muag tuaj yeem hnov ​​ntau yam xim raws li qhov sib piv ntawm liab, ntsuab thiab xiav.