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Kopp IR Absorbing/VIS Transmitting - 3966
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IR Absorbing/VIS Transmitting - 3966
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| Note: Graph and tabular data at 2.75 mm | |
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Filter Specifications
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| Transmission for Total Radiation (Illuminant 2854 °K) must be 32.0 ± 2.0% | |
| Minimum Value for Luminous Transmittance (Illuminant 2854 °K) must be 75% | |
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Physical Properties
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| Nominal Thickness Range | 2.15 - 2.85 mm |
| Refractive Index | nD = 1.50 |
| Density | 2.41 g/cm3 |
| Thermal Linear Expansion | 48E-7 /ºC (30-300 ºC) |
| Strain Temperature | 533 ºC |
| Annealing Temperature | 569 ºC |
| Deformation Temperature | 766 ºC |
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IR Absorbing/VIS Transmitting - 3966
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Wavelength
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Transmission
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Wavelength
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Transmission
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Wavelength
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Transmission
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(nm)
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(%)
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(nm)
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(%)
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(nm)
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(%)
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200
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0.00
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435
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82.62
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670
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62.88
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205
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0.00
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440
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82.65
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675
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61.74
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210
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0.00
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445
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82.97
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680
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60.61
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215
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0.00
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450
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83.29
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685
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59.35
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220
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0.00
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455
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83.50
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690
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58.09
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225
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0.00
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460
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83.69
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695
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56.93
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230
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0.00
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465
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83.93
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700
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55.66
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235
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0.00
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470
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84.00
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705
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54.39
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240
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0.00
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475
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84.17
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710
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53.14
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245
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0.00
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480
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84.26
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715
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51.92
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250
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0.00
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485
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84.37
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720
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50.64
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255
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0.00
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490
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84.34
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725
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49.40
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260
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0.00
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495
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84.31
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730
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48.14
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265
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0.00
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500
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84.35
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735
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46.93
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270
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0.00
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505
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84.18
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740
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45.65
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275
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0.00
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510
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84.14
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745
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44.43
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280
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0.00
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515
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83.95
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750
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43.26
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285
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0.00
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520
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83.70
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755
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42.11
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290
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0.00
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525
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83.56
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760
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40.91
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295
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0.00
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530
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83.35
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765
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39.74
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300
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0.01
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535
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83.19
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770
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38.65
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305
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0.10
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540
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82.94
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775
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37.57
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310
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0.63
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545
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82.53
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780
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36.47
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315
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2.43
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550
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82.20
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785
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35.47
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320
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6.68
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555
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81.90
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790
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34.51
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325
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13.82
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560
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81.55
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795
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33.53
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330
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23.28
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565
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81.04
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800
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32.56
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335
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33.74
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570
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80.64
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805
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31.68
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340
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43.72
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575
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80.07
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810
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30.84
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345
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52.60
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580
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79.45
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815
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30.00
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350
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59.63
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585
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78.81
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820
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29.24
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355
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65.45
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590
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78.10
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825
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28.49
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360
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69.70
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595
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77.36
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830
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27.69
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365
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73.24
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600
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76.71
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835
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27.07
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370
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75.26
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605
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75.93
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840
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26.35
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375
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76.27
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610
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75.08
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845
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25.76
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380
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77.14
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615
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74.26
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850
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25.10
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385
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78.71
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620
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73.34
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855
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24.55
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390
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80.02
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625
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72.43
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860
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24.05
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395
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80.92
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630
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71.43
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865
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23.43
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400
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81.35
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635
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70.35
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870
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22.79
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405
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81.59
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640
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69.35
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875
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22.37
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|
410
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81.84
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645
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68.31
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880
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22.14
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415
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81.94
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650
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67.23
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885
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21.45
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420
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82.22
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655
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66.18
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890
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21.18
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|
425
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82.44
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660
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65.13
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895
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20.62
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430
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82.57
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665
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64.01
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900
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20.73
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