由一个平面和一个凹球面组成，具有负焦距和负的球面偏差，能使准直入射光发散，只形成通过透镜看到的虚像。经常被用来扩展光束、增加系统长度和抵消系统中其他透镜的像差。广泛应用于显示系统投影系统、激光测量、光学成像、光束控制等领域。
|
技术指标 |
|
|
材料 |
BK7 |
|
设计波长 |
546.1nm |
|
设计指数 |
1.5183+/-0.0005 |
|
尺寸公差 |
+0.0，-0.15mm |
|
焦距公差 |
+/-2% |
|
偏心 |
3 arc minute |
|
通光口径 |
>85% |
|
面形 |
λ/4@632.8nm |
|
光洁度 |
60/40 |
|
倒角 |
0.25mm*45° |
|
镀膜 |
不镀膜 |
|
标准型号 |
φ(mm) |
f (mm) |
R1 (mm) |
t e (mm) |
t c (mm) |
f b (mm) |
|
PCV1201 |
12.7 |
-15 |
7.78 |
5.3 |
2 |
-16.3 |
|
PCV1202 |
12.7 |
-20 |
10.37 |
4.1 |
2 |
-21.3 |
|
PCV1203 |
12.7 |
-25 |
12.96 |
3.7 |
2 |
-26.3 |
|
PCV1204 |
12.7 |
-30 |
15.55 |
3.4 |
2 |
-31.3 |
|
PCV1205 |
12.7 |
-40 |
20.73 |
3 |
2 |
-41.3 |
|
PCV1206 |
12.7 |
-50 |
25.92 |
2.8 |
2 |
-51.3 |
|
PCV1301 |
25.4 |
-25 |
12.97 |
10.9 |
2 |
-26.3 |
|
PCV1302 |
25.4 |
-35 |
18.14 |
7.2 |
2 |
-36.3 |
|
PCV1303 |
25.4 |
-50 |
25.92 |
5.3 |
2 |
-51.3 |
|
PCX1305 |
25.4 |
-75 |
38.87 |
4.1 |
2 |
-76.3 |
|
PCX1306 |
25.4 |
-100 |
51.83 |
3.6 |
2 |
-101.3 |
|
PCX1307 |
25.4 |
-150 |
77.75 |
3 |
2 |
-151.3 |
|
PCX1308 |
25.4 |
-200 |
103.66 |
2.7 |
2 |
-201.3 |
|
技术指标 |
|
|
材料 |
BK7 |
|
设计波长 |
546.1nm |
|
设计指数 |
1.5183+/-0.0005 |
|
尺寸公差 |
+0.0，-0.15mm |
|
焦距公差 |
+/-2% |
|
偏心 |
3 arc minute |
|
通光口径 |
>85% |
|
面形 |
λ/4@632.8nm |
|
光洁度 |
60/40 |
|
倒角 |
0.25mm*45° |
|
镀膜 |
不镀膜 |
|
标准型号 |
φ(mm) |
f (mm) |
R1 (mm) |
t e (mm) |
t c (mm) |
f b (mm) |
|
PCV1201 |
12.7 |
-15 |
7.78 |
5.3 |
2 |
-16.3 |
|
PCV1202 |
12.7 |
-20 |
10.37 |
4.1 |
2 |
-21.3 |
|
PCV1203 |
12.7 |
-25 |
12.96 |
3.7 |
2 |
-26.3 |
|
PCV1204 |
12.7 |
-30 |
15.55 |
3.4 |
2 |
-31.3 |
|
PCV1205 |
12.7 |
-40 |
20.73 |
3 |
2 |
-41.3 |
|
PCV1206 |
12.7 |
-50 |
25.92 |
2.8 |
2 |
-51.3 |
|
PCV1301 |
25.4 |
-25 |
12.97 |
10.9 |
2 |
-26.3 |
|
PCV1302 |
25.4 |
-35 |
18.14 |
7.2 |
2 |
-36.3 |
|
PCV1303 |
25.4 |
-50 |
25.92 |
5.3 |
2 |
-51.3 |
|
PCX1305 |
25.4 |
-75 |
38.87 |
4.1 |
2 |
-76.3 |
|
PCX1306 |
25.4 |
-100 |
51.83 |
3.6 |
2 |
-101.3 |
|
PCX1307 |
25.4 |
-150 |
77.75 |
3 |
2 |
-151.3 |
|
PCX1308 |
25.4 |
-200 |
103.66 |
2.7 |
2 |
-201.3 |
