Can IR sensors see through plastic?

Can IR sensors see through plastic?

Can thermal imaging see through plastic? Infrared radiation will pass through the plastic, allowing the thermal camera to detect whatever is behind it, while visible light will be blocked. However, this trick only works with very thin plastic—thicker plastics will block infrared radiation.

Can infrared light pass through clear plastic?

Far-infrared light is not detected by digital cameras and will not pass through clear plastic or water.

What is IR transparent material?

In addition to previously mentioned NIR materials such as IR fused silica, IR transparent materials include Zinc Selenide (ZnSe), Zinc Sulfide (ZnS), Calcium Fluoride (CaF2) and Magnesium Fluoride (MgF2). All of these operate from the visible spectrum up to 8-10μ.

Is polycarbonate transparent to IR?

Note that polycarbonate goes opaque in the UV spectrum and has good IR transmission.

Can my phone detect infrared?

And while our naked eyes can’t pick up on infrared light, the sensors in your phones and digital cameras can — essentially making the invisible visible. The cell phone camera is more sensitive to light than human eyes are, so it “sees” the infrared light that is invisible to us.

What materials can infrared not pass through?

Infrared radiation in this range will not pass through many types of material that pass visible light such as ordinary window glass and plastic. However it will pass through, with some attenuation, material that is opaque to visible light such as germanium and silicon.

What materials can IR pass through?

Glass, Plexiglas, wood, brick, stone, asphalt and paper all absorb IR radiation. While regular silver-backed mirrors reflect visible light waves, allowing you to see your reflection, they absorb infrared radiation. Gold, manganese and copper also absorb IR radiation well.

What material can infrared pass through?

Is acrylic transparent to IR?

Some transparent plastics such as acrylic glass are used where there is need to transmit IR-light or visible light. Poly(methyl methacrylate) (PMMA) passes infrared light of up to 2,800 nm and blocks IR of longer wavelengths up to 25,000 nm.

Which is the best material to transmit IR light?

IR materials are usually opaque in the visible while visible materials are usually opaque in the IR; in other words, they exhibit nearly 0% transmission in those wavelength regions. For example, consider silicon, which transmits IR but not visible light (Figure 2). Figure 2: Uncoated Silicon Transmission Curve

Which is transparent to part of the IR spectrum?

Natural colour PC is reasonably transparent to some parts of the IR spectrum, especially in the 700 to 1600 nm range where it transmits about 80% in thin sections. 1) The specific spectrum of the light to be transmitted. 2) The transmission of the naturally coloured plastic in that wavelength band.

Is the NIR transmitter cover opaque or opaque?

“Opaque,” in optical parlance, implies NO transmission. Most, if not all, NIR transmitter covers are “clear” red, i.e., they will look red with bright backlighting, and while dark, they are not “opaque.” That said, they are usually sufficiently dark enough to prevent the average person from seeing through the window into the circuitry.

Where does a CCD sensor sit in the IR range?

FWIW, I once needed to create a plexiglass window/shell for a near-IR camera. Most CCD and CMOS sensors are sensitive in the near IR range (e.g. around 850nm), which is where @user3095849 suggested your sensor sits.