GrayGlass - www.grayglass.net
Kopp Green 4445
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Green - 4445
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Note: Graph and tabular data at 2.67 mm
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Filter Specifications
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| Maximum transmission at 490 ± 5 nm | |
| Transmission at 580 nm must be 15 ± 0.7% | |
| The difference between 15% and 60% transmission must be 63 ± 5 nm | |
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Physical Properties
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| Nominal Thickness Range | 2.1 - 2.9 mm |
| Refractive Index | nD = 1.50 |
| Density | 2.40 g/cm3 |
| Thermal Linear Expansion | 58E-7 /ºC (30-300 ºC) |
| Strain Temperature | 504 ºC |
| Annealing Temperature | 545 ºC |
| Deformation Temperature | 775 ºC |
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Green - 4445
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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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44.52
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670
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0.47
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205
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0.00
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440
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47.28
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675
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0.41
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210
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0.00
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445
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50.06
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680
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0.36
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215
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0.00
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450
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52.60
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685
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0.31
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220
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0.00
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455
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55.03
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690
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0.28
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225
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0.00
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460
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57.20
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695
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0.25
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230
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0.00
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465
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59.17
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700
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0.22
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235
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0.00
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470
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60.81
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705
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0.21
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240
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0.00
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475
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62.27
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710
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0.19
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245
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0.00
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480
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63.39
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715
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0.18
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250
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0.00
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485
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64.08
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720
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0.17
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255
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0.00
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490
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64.51
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725
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0.17
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260
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0.00
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495
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64.53
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730
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0.16
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265
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0.00
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500
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64.11
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735
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0.16
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270
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0.00
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505
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63.07
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740
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0.16
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275
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0.00
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510
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61.65
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745
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0.15
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280
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0.00
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515
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59.68
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750
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0.16
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285
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0.00
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520
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57.16
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755
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0.16
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290
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0.00
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525
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54.23
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760
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0.16
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295
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0.00
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530
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50.79
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765
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0.16
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300
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0.00
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535
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47.15
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770
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0.17
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305
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0.00
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540
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43.18
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775
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0.18
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310
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0.00
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545
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39.09
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780
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0.18
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315
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0.00
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550
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35.00
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785
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0.19
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320
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0.00
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555
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30.95
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790
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0.20
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325
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0.00
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560
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27.06
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795
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0.21
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330
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0.00
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565
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23.42
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800
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0.23
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335
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0.00
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570
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20.08
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805
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0.24
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340
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0.00
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575
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17.02
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810
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0.26
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345
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0.00
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580
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14.36
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815
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0.27
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350
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0.01
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585
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12.03
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820
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0.29
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355
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0.06
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590
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9.99
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825
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0.32
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360
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0.25
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595
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8.25
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830
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0.34
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365
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0.74
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600
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6.81
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835
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0.36
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370
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1.74
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605
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5.58
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840
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0.39
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375
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3.44
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610
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4.57
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845
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0.42
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380
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5.85
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615
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3.73
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850
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0.46
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385
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9.00
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620
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3.05
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855
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0.50
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390
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12.64
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625
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2.48
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860
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0.53
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395
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16.48
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630
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2.03
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865
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0.57
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400
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20.41
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635
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1.66
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870
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0.63
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405
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24.20
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640
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1.37
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875
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0.70
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410
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27.96
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645
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1.12
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880
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0.73
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415
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31.52
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650
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0.93
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885
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0.75
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420
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34.97
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655
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0.78
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890
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0.84
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425
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38.36
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660
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0.65
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895
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0.94
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430
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41.53
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665
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0.55
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900
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0.95
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