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Difference between infrared lens and ordinary lens.
Jan 09, 2023
Difference between infrared lens and ordinary lens.
First, they have different uses:
In a monitoring environment that does not require infrared light assistance, ordinary lenses can be used; In the monitoring environment with infrared light compensation, if you want to have an ideal imaging effect, you must use an infrared lens; Of course, you can see the picture with ordinary lens under the infrared light, but the picture will become blurred
Secondly, their prices are different:
The price of professional infrared lens is several times higher than that of ordinary lens. Because the imaging of infrared lens is clear at night and in the morning, the effect is good
The reason why their functions and prices are so different:
Because the glass has different refractive indexes for light of different wavelengths, the position of the focus will be different. At present, ordinary lenses on the market can focus light with a wavelength difference of about 250nm on the same solid, that is, light within 430~650nm or 650~900nm can focus to produce a clear image.
The professional infrared lens adopts special lenses, which can make imaging clear in the daytime or night.
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