PARAPETTM is the trade name for the acrylic molding materials(PMMA),manufactured by KURARAY Co.,Ltd.
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GRADE INFO
PARAFILTER (Filter Grade)
Near infrared rays passing filter grade
Near infrared rays passing filter grade is a sharply cut filter with specific wavelength selection provided for methacrylic resin. It transmits only near infrared rays for both light emission and reception, completely shutting out the other harmful rays.

Color number Pass limit wavelength (nm) Absorption limit wavelength (nm) Wavelength slope width (nm)   Color number Pass limit wavelength (nm) Absorption limit wavelength (nm) Wavelength slope width (nm)
PF64 662 640 45 PF72 737 720 34
PF65 673 650 47 PF73 750 730 39
PF66 682 660 44 PF75 770 750 39
PF67 691 670 42 PF78 802 780 44
PF68 700 680 40 PF79 827 792 70
PF69 708 690 37 PF80 852 805 93
PF70 718 700 36 PF81 875 814 122
PF71 727 710 34 PF83 902 830 144
[Portion of plate thickness of 2mm] [KURARAY in-house data]

Spectrum transmittance

spectrum transmittance

Applications
Remote controls for TVs, audio devices, air conditioners, auto focus cameras, burglar alarms, automatic door sensors, etc.

Ultraviolet rays absorbing filter grade
Color number Rising wavelength (nm) Absorption limit wavelength (nm)   Color number Rising wavelength (nm) Absorption limit wavelength (nm)
PF370 360 370 PF400 395 400
PF380 375 380 PF407 400 407
PF390 380 390 PF410 405 410
PF395 385 390 PF420 410 420
[Portion of plate thickness of 2mm] [KURARAY in-house data]

Spectrum transmittance

spectrum transmittance
Applications
Flash Lens of Digital Camera,Sunglasses Lens,Glasses Lens etc.

Sunglasses Lens,Glasses Lens
Sunglasses Lens,Glasses Lens