Infrared Optical Filter Glass HWB760-850
Our Products Infrared Optical Filter Glass HWB760-850 series are respectively equivalent to longpass filters RG780, RG830 of Germany Schott and infrared transmitting filters IR series of Japan Hoya.
The IR Optical Glass HWB760-850 Series are Infrared transmission visible light absorption cut-off optical filter. These longpass filter glass are designed to transmit wavelengths above 760-850nm. Any wavelengths that are shorter than that point are blocked. Typical applications include fluorescent spectroscopy systems. Additionally, they are commonly used in conjunction with shortpass filters for bandpass filtration applications. Also, these IR longpass filters are widely used in light sources for purposes such as infrared testing systems and night vision instrument.
Main Application: Camera Lens, Medical Equipment, Security Device, Night Vision Device, etc
Characteristics of IR Optical Glass
|
Type |
Thickness(mm) | A[2856k] | D65 |
Chemical Stability |
ND | α×10-7 (/℃) |
Tg (℃) |
Ts (℃) |
S | |||||
| x | y | Y | x | y | Y | DA | DW | |||||||
| HWB760 | 3 | 5 | 4 | 1.532 | 111 | 534 | 592 | 2.77 | ||||||
| HWB780 | 3 | 5 | 4 | 1.532 | 111 | 534 | 592 | 2.77 | ||||||
| HWB800 | 3 | 5 | 4 | 1.520 | 98 | 559 | 615 | 3.05 | ||||||
| HWB830 | 3 | 5 | 4 | 1.520 | 98 | 559 | 615 | 3.05 | ||||||
| HWB850 | 3 | 5 | 4 | 1.520 | 98 | 559 | 615 | 3.05 | ||||||
Technical Standard of IR Optical Glass
|
Type |
Thickness(mm) |
λtj
(nm) |
λ0
(nm) |
Tλ0
(%) |
K
|
|
HWB760
|
3
|
760±10
|
850
|
≥83.6
|
≥0.6
|
|
HWB780
|
3
|
780±10
|
900
|
≥83.6
|
≥0.5
|
|
HWB800
|
3
|
800±10
|
900
|
≥83.6
|
≥0.5
|
|
HWB830
|
3
|
830±10
|
930
|
≥83.6
|
≥0.5
|
|
HWB850
|
3
|
850±10
|
950
|
≥80.0
|
≥0.5
|
Quality Level of IR Optical Glass
|
Type |
Bubble |
Stripe |
Stress |
|
HWB760
|
C-B
|
3C
|
3
|
|
HWB780
|
C-B
|
3C
|
3
|
|
HWB800
|
C-B
|
3C
|
3
|
|
HWB830
|
C-B
|
3C
|
3
|
|
HWB850
|
C-B
|
3C
|
3
|
Shijiazhuang Zeyuan Optics Co., Ltd.
Service Line: +86 13138088351
Add:Xiqiaotou Industrial Area, Shenze County,
Shijiazhuang, Hebei, China
0311-83591469
+86 15128127697
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