Longpass Filter / IR 840nm | Asahi Spectra USA Inc.

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XIL0840 Longpass Filter / IR 840nm 25mm dia.

The following actual transmission curve is shown only for your reference.
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nm / %
 940.0  97.4560
 939.5  97.4038
 939.0  97.4482
 938.5  97.3979
 938.0  97.3937
 937.5  97.3286
 937.0  97.3412
 936.5  97.3383
 936.0  97.2764
 935.5  97.2396
 935.0  97.2515
 934.5  97.2410
 934.0  97.2099
 933.5  97.2022
 933.0  97.1790
 932.5  97.1846
 932.0  97.2126
 931.5  97.1721
 931.0  97.1589
 930.5  97.1678
 930.0  97.1520
 929.5  97.1321
 929.0  97.1577
 928.5  97.1455
 928.0  97.1479
 927.5  97.2053
 927.0  97.1453
 926.5  97.1860
 926.0  97.1985
 925.5  97.2037
 925.0  97.2216
 924.5  97.2477
 924.0  97.2557
 923.5  97.2759
 923.0  97.3123
 922.5  97.3872
 922.0  97.3700
 921.5  97.4210
 921.0  97.3671
 920.5  97.4885
 920.0  97.4771
 919.5  97.4862
 919.0  97.5065
 918.5  97.5574
 918.0  97.5404
 917.5  97.5966
 917.0  97.6134
 916.5  97.6490
 916.0  97.6516
 915.5  97.6592
 915.0  97.6637
 914.5  97.6813
 914.0  97.6849
 913.5  97.6638
 913.0  97.6682
 912.5  97.6668
 912.0  97.6011
 911.5  97.5881
 911.0  97.5544
 910.5  97.5147
 910.0  97.4843
 909.5  97.4415
 909.0  97.3771
 908.5  97.3292
 908.0  97.2530
 907.5  97.1527
 907.0  97.0953
 906.5  97.0341
 906.0  96.9292
 905.5  96.8353
 905.0  96.7412
 904.5  96.6255
 904.0  96.5501
 903.5  96.4489
 903.0  96.3256
 902.5  96.2313
 902.0  96.0875
 901.5  95.9972
 901.0  95.8501
 900.5  95.7616
 900.0  95.6335
 899.5  95.5043
 899.0  95.4095
 898.5  95.2829
 898.0  95.1834
 897.5  95.0661
 897.0  94.9470
 896.5  94.8905
 896.0  94.8021
 895.5  94.6916
 895.0  94.6345
 894.5  94.5548
 894.0  94.4973
 893.5  94.4563
 893.0  94.4070
 892.5  94.3812
 892.0  94.3119
 891.5  94.3315
 891.0  94.3040
 890.5  94.3461
 890.0  94.3195
 889.5  94.3401
 889.0  94.3969
 888.5  94.4677
 888.0  94.4422
 887.5  94.5261
 887.0  94.5796
 886.5  94.6718
 886.0  94.7626
 885.5  94.8273
 885.0  94.9095
 884.5  95.0436
 884.0  95.1316
 883.5  95.2299
 883.0  95.4476
 882.5  95.4637
 882.0  95.5872
 881.5  95.7119
 881.0  95.8432
 880.5  95.9580
 880.0  96.0803
 879.5  96.1253
 879.0  96.3212
 878.5  96.3014
 878.0  96.4693
 877.5  96.4832
 877.0  96.6658
 876.5  96.6991
 876.0  96.7267
 875.5  96.8099
 875.0  96.8383
 874.5  96.7911
 874.0  96.8460
 873.5  96.8541
 873.0  96.8387
 872.5  96.8082
 872.0  96.8095
 871.5  96.7741
 871.0  96.6954
 870.5  96.5853
 870.0  96.5640
 869.5  96.4615
 869.0  96.3847
 868.5  96.3504
 868.0  96.2343
 867.5  96.1193
 867.0  96.0014
 866.5  95.9100
 866.0  95.8536
 865.5  95.7865
 865.0  95.6572
 864.5  95.6098
 864.0  95.5307
 863.5  95.4522
 863.0  95.4042
 862.5  95.3512
 862.0  95.3061
 861.5  95.2633
 861.0  95.2106
 860.5  95.2293
 860.0  95.2554
 859.5  95.1978
 859.0  95.2133
 858.5  95.2674
 858.0  95.2951
 857.5  95.2798
 857.0  95.3561
 856.5  95.3309
 856.0  95.4319
 855.5  95.4229
 855.0  95.4334
 854.5  95.4511
 854.0  95.4216
 853.5  95.4214
 853.0  95.3999
 852.5  95.2767
 852.0  95.1260
 851.5  94.9594
 851.0  94.7643
 850.5  94.4743
 850.0  94.1015
 849.5  93.6243
 849.0  93.0217
 848.5  92.2994
 848.0  91.5543
 847.5  90.6361
 847.0  89.5724
 846.5  88.2931
 846.0  86.7546
 845.5  85.0943
 845.0  83.2330
 844.5  81.2662
 844.0  79.1681
 843.5  76.8522
 843.0  76.1370
 842.5  72.5946
 842.0  68.8605
 841.5  64.8296
 841.0  60.5782
 840.5  56.0521
 840.0  51.5004
 839.5  46.8196
 839.0  42.3426
 838.5  37.9816
 838.0  33.8039
 837.5  29.9135
 837.0  26.2432
 836.5  22.8940
 836.0  19.9478
 835.5  17.2331
 835.0  14.9160
 834.5  12.8711
 834.0  11.0702
 833.5   9.5275
 833.0   8.1789
 832.5   7.0059
 832.0   6.0362
 831.5   5.1743
 831.0   4.4460
 830.5   3.8312
 830.0   3.2918
 829.5   2.8410
 829.0   2.4593
 828.5   2.1176
 828.0   1.8417
 827.5   1.5951
 827.0   1.3816
 826.5   1.2039
 826.0   1.0446
 825.5   0.9105
 825.0   0.7956
 824.5   0.6934
 824.0   0.6078
 823.5   0.5327
 823.0   0.4686
 822.5   0.4125
 822.0   0.3627
 821.5   0.3202
 821.0   0.2827
 820.5   0.2497
 820.0   0.2218
 819.5   0.1961
 819.0   0.1744
 818.5   0.1552
 818.0   0.1379
 817.5   0.1225
 817.0   0.1089
 816.5   0.0973
 816.0   0.0874
 815.5   0.0788
 815.0   0.0704
 814.5   0.0636
 814.0   0.0561
 813.5   0.0508
 813.0   0.0458
 812.5   0.0408
 812.0   0.0368
 811.5   0.0333
 811.0   0.0301
 810.5   0.0275
 810.0   0.0247
 809.5   0.0220
 809.0   0.0199
 808.5   0.0186
 808.0   0.0173
 807.5   0.0154
 807.0   0.0135
 806.5   0.0126
 806.0   0.0108
 805.5   0.0108
 805.0   0.0099
 804.5   0.0085
 804.0   0.0093
 803.5   0.0079
 803.0   0.0066
 802.5   0.0063
 802.0   0.0050
 801.5   0.0050
 801.0   0.0043
 800.5   0.0047
 800.0   0.0049
 799.5   0.0028
 799.0   0.0045
 798.5   0.0038
 798.0   0.0030
 797.5   0.0025
 797.0   0.0039
 796.5   0.0013
 796.0   0.0016
 795.5   0.0015
 795.0   0.0015
 794.5   0.0014
 794.0   0.0006
 793.5   0.0020
 793.0   0.0017
 792.5   0.0007
 792.0   0.0017
 791.5   0.0003
 791.0   0.0005
 790.5   0.0006
 790.0   0.0008
 789.5  -0.0001
 789.0   0.0003
 788.5   0.0007
 788.0   0.0004
 787.5   0.0012
 787.0   0.0017
 786.5   0.0009
 786.0   0.0008
 785.5   0.0004
 785.0   0.0008
 784.5  -0.0001
 784.0   0.0011
 783.5   0.0008
 783.0   0.0009
 782.5   0.0003
 782.0   0.0004
 781.5   0.0007
 781.0   0.0002
 780.5   0.0001
 780.0   0.0005
 779.5   0.0003
 779.0   0.0001
 778.5   0.0004
 778.0  -0.0003
 777.5   0.0003
 777.0   0.0001
 776.5   0.0006
 776.0  -0.0003
 775.5  -0.0003
 775.0   0.0007
 774.5  -0.0001
 774.0  -0.0008
 773.5   0.0001
 773.0   0.0004
 772.5   0.0004
 772.0   0.0003
 771.5   0.0017
 771.0  -0.0005
 770.5   0.0012
 770.0   0.0002
 769.5  -0.0004
 769.0   0.0002
 768.5  -0.0005
 768.0   0.0005
 767.5   0.0003
 767.0  -0.0003
 766.5  -0.0010
 766.0   0.0001
 765.5   0.0006
 765.0   0.0002
 764.5   0.0002
 764.0  -0.0004
 763.5   0.0002
 763.0  -0.0006
 762.5   0.0003
 762.0  -0.0002
 761.5   0.0000
 761.0   0.0003
 760.5  -0.0001
 760.0  -0.0002
 759.5  -0.0001
 759.0   0.0000
 758.5  -0.0001
 758.0   0.0001
 757.5  -0.0008
 757.0   0.0001
 756.5  -0.0007
 756.0   0.0004
 755.5   0.0003
 755.0   0.0000
 754.5   0.0001
 754.0  -0.0012
 753.5  -0.0005
 753.0  -0.0002
 752.5  -0.0008
 752.0   0.0001
 751.5  -0.0011
 751.0   0.0003
 750.5   0.0003
 750.0   0.0015
 749.5  -0.0006
 749.0   0.0002
 748.5  -0.0011
 748.0   0.0005
 747.5   0.0009
 747.0   0.0001
 746.5  -0.0002
 746.0  -0.0008
 745.5  -0.0004
 745.0  -0.0011
 744.5  -0.0005
 744.0  -0.0004
 743.5  -0.0007
 743.0   0.0003
 742.5   0.0002
 742.0   0.0000
 741.5   0.0005
 741.0  -0.0001
 740.5   0.0002
 740.0   0.0001
Specifications
Description
Longpass Filter / IR 840nm
Item#
XIL0840
Size
25mm dia.
Clear Aperture
23mm dia.
Thickness
2mm
Substrate
RG695
Cut-on
840nm
Cut-on Tolerance
+8/-8nm
Angle of Incidence (AOI)
0 degree
Price
$130
Estimated Ship Date from Japan
3 days
Specifications are subject to change without notice.
Refer to the ordering information, "Shipping" section for the detail.
If you are not satisfied with our standard filters, contact us for custom filters.