Our products purple color filter glass ZB2 is equivalent to UV bandpass filter BG3 of Germany Schott, and colored optical filter ZB1/ZB3 are respectively equal to blue filters B390/B370 of Japan Hoya.
These violet/purple optical glass is belong to bandpass filters which are designed to block every frequency except for a small range. They are a combination of shortpass filters and longpass filters, filtering out any wavelengths that are too short or too long. This cutoff range can be lengthened or narrowed by adjusting the number of layers in the filter. Our ZB series filter glass transmit light in the purple spectrum, which are mainly used for 3-color separations, selection of wavelengths and color compensation.
Main Application: Camera Lens, CCD Imager, Medical Equipment, Chemical Analysis Systems, Stage Light, Color Expansion Equipment.
Characteristics of Purple Color Filter Glass
| Type |
Thickness |
A[2856k] |
D65 |
Chemical Stability |
ND |
α×10-7 |
Tg |
Ts |
S |
|||||
|
(mm) |
x |
|
Y |
x |
|
Y |
DA |
DW |
(℃) |
(℃) |
(℃) |
|||
|
ZB1 |
2 |
0.519 |
0.018 |
0.2 |
0.16 |
0.016 |
0.6 |
1 |
3 |
1.524 |
89 |
519 |
589 |
2.53 |
|
ZB2 |
2 |
0.158 |
0.02 |
0.2 |
0.16 |
0.017 |
0.7 |
1 |
2 |
1.495 |
58 |
551 |
655 |
2.4 |
|
ZB3 |
2 |
0.165 |
0.011 |
0.1 |
0.166 |
0.01 |
0.2 |
1 |
3 |
1.495 |
57 |
538 |
636 |
2.4 |
Technical Standard of Purple Color Filter Glass
| Type |
Thickness(mm) |
300nm |
360nm |
400nm |
480nm |
700nm |
710nm |
720nm |
800nm |
|
ZB1 |
2 |
|
|
≥70.0 |
≤6.0 |
≤4.0 |
|
|
|
|
ZB2 |
2 |
≥31.0 |
≥78.2 |
|
≤3.7 |
|
≤9.2 |
|
≥80.4 |
|
ZB3 |
2 |
≥18.0 |
≥78.2 |
|
≤0.2 |
|
|
≤10.0 |
≥80.4 |
Quality Level of Purple Color Filter Glass
|
Type |
Bubble |
Stripe |
Stress |
|
ZB1 |
C-B |
4 |
3 |
|
ZB2 |
C-B |
4 |
3 |
|
ZB3 |
C-B |
4 |
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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