Quartz glass has excellent optical spectrum property.It can transmit far UV spectrum,is the best one of all UV transmiting materials, and also transmit Visible light and near infrared spectrum.The user can select any sort Within the wave—range of 185m μ - 3500m μ .For its excellent properties,such as:high temperature proof,low thermal expansion,chemical stability,thermal stability,and Similar to ordinary opticai glass
in bubble,striae,homogeneity,birefringence,optical quartz glass became an essential optical material for high stability optical system under worst conditions.
Among the above mentioned products,the HS infra-red opticai quartz glass was awarded the “China National Silver medal”for its excellent quality.
石英玻璃的光学性能有其独到之处,它既可以透过远紫外线,是所有透紫外材料最优者,又可透过可见光和近红外光谱。 用户可以根据需要
, 从180-3500nm波段范围内任意选择所需品种。由于石英玻璃耐高温,热膨胀系数极小,化学稳定性好,气泡、条纹、均匀性、双折射又可与一
般光学玻璃媲美,所以它是在各种恶劣场合下工作具有高稳定度光学系数的必不可少的光学材料。
ZS-1 是用Sich合成的石英玻璃,其特性是没有气泡,极高的纯度, 在所有材料中透紫外光谱最佳。其应用波长为175-2500 nm。由于制造过
程中“含水”, 结构网络中(0H)振动致使这种玻璃在2730nm处具有很强的吸收峰,无颗粒结构。
ZS-2 是合成或用高纯石英原料生产的石英玻璃,在2730nm有吸收峰,其应用波长为200-2500nm。无气泡、无颗粒结构。 HS是电熔石英玻璃
,几乎没有气泡和条纹,几乎不含(0H),是理想的透红外光谱材料,其应用波长为260—3500nm。
KS 可见光石英玻璃是用H2-02:焰融水晶而成的石英玻璃,在200—2500nm及2600—3800nm波长范围内吸收带明显。
ZKHS 是Sich合成电熔石英玻璃,其特点是在185—3500nm波长范围内均无明显吸收带,具有极高的纯度、无气泡、无颗粒结构,是石英玻璃
中所有性能最优的品种。
ZS-1 is a kind of synthetic quartz glass made from high pure tetrachloride silicon.It is characterized for the freedom from bubbles, highest purlty of material, the best transmittance in far UV spectrum, high resistance to radiation. Wave length used:175-2500nm. Because formed by a“wet”process,the fundamental vibrational band of incorporated structural hydroxyl ions Will absorb strongly at 2730nm.No grain structure.
ZS—2 is a kind Of quartz glass made from synthetis Or high pure silica raw material. Bubble free, no grain structure. It has absorption at 2730nm. Wave length used:200—2500nm.
HS is made from quartz crystal by electric fusion, It is an ideal opticai material whose advantages are almost no (0H),bubbles and striae,good transmission in IR spetrum.Wave length used:260-3500nm.
石英玻璃的光学常数 Refraction index and Dispersion of quartz glass
| Type
properties |
Transparent quartz glass from quartz crystal 水晶熔制 |
Synthetic quartz glass 合成石英玻璃 |
Nd(He 587.56nm) |
1.45857 |
1.45847 |
Nf(H 486.13nm) |
1.46324 |
1.46314 |
Nc(H 656.27nm) |
1.45645 |
1.45637 |
Y=(Nd-1)/(Nf-Nc)
Nf-Nc |
67.6
0.00678 |
67.7
0.00677 |
KS Visible quartz glass is made by H2,02 fusioOn crystal,strongly absorbes at wavebands:200—2500hm and 2600—3800nm.
ZKHS is SiCl4 synthetic quartz glass, made by electric fusion. Its chayacteritics:no absorption at 185—3500nm , high purity,bUbble free,no grain structure. ZKHS is the optimugl one in quartz glass.
光学石英玻璃按光谱透过率等七项指标分类定级(JC/T185—1996)
a.光谱透过率: 分二类; b.光学均匀性:分五类; c.双折射:分五类; d.条纹:分二类; e.颗粒不均匀性:分三类; f.气泡:分七类
g.荧光特性:分二类。
According to 7 indexes(optical transmission and so on) optical quartz glass is graded(JC/T185—1996):
a.optical transmission: 2grades; b.optical homogeneity: 5 grades; c.bire±ractlog:5 grades; d.stria: 2 grades
e.grain non—homogeneity:3 grades; f.bubble: 7 grades; g.fluorescence: 2 grades.
各种光学石英玻璃所能达到的最高类别及最大重量见下表: (以0.1公斤计)
The best grade for(100g weight) and most weight of our optical quartz glass:
| 牌号 type
试 验 项 目
test items |
ZS—l |
ZS一2 |
KS |
HS |
ZKHS |
气泡类别 bubble |
0 |
2 |
2 |
1 |
1 |
光谱特性(平均透过率)
medium transmission |
180—2500nm |
200—2500hm |
250—2500nm |
260—3500nm |
185—3500nm |
| >90% |
>85% |
>85% |
>85% |
>85% |
双折射birefraction |
l一2 |
l一2 |
2 |
l一2 |
l一2 |
颗粒结构
grain structure |
1 |
2 |
2 |
2 |
1 |
条 纹stria |
l一2 |
l一2 |
2 |
l一2 |
l一2 |
均 匀 性homogeneity |
l一2 |
2 |
2 |
2 |
l一2 |
荧 光fluorescence |
1 |
2 |
2 |
2 |
1 |
防辐射性能
radiation proof |
不变色
no change its colour |
轻微变色
change co]our a 1ittle |
|