双胶合消色差透镜
¨计算机优化设 计
¨性能优良
双胶合消色差透镜由低折射率(冕牌玻璃)的正透镜和高折射率(火石玻璃)的负透镜组成. 经过计算机优化设计,
使球差、慧差和色差等近轴像差都得到了很好的校正, 当用来聚焦准直时, 凸透镜或小曲率半径的面通常朝向准直光. 当用来成像时,
凸透镜必须朝向物距或像距较长的一边.
大孔径的消色差透镜为双分离消色差型透镜, 请您在下面的目录DH-0406 BK7中浏览详细信息。
DH-0406
BK7
材料:优质光学玻璃
焦距 (f’): ±2%
直径 (F):
-0.20mm
中心厚度 (Tc): ±0.1mm
中心偏差: 3'
光圈: 1~5
局部光圈: 0.2~0.5
光洁度: Ⅳ级
镀膜: MgF2增透膜
通光孔径: 90%F
|
Catalog
No.
|
Ø
|
f'
|
fb
|
Tc
|
Te
|
|
DH-040661
|
6.0
|
10.0
|
7.8
|
4.2
|
3.0
|
|
DH-040662
|
6.0
|
20.0
|
18.6
|
3.1
|
2.5
|
|
DH-040601
|
6.0
|
30.0
|
28.8
|
2.8
|
2.4
|
|
DH-040612
|
10.0
|
20.0
|
17.0
|
5.0
|
3.4
|
|
DH-040613
|
10.0
|
30.0
|
28.2
|
3.7
|
2.7
|
|
DH-040602
|
12.7
|
50.0
|
48.1
|
4.3
|
3.3
|
|
DH-040603
|
12.7
|
75.0
|
73.3
|
3.8
|
3.1
|
|
DH-040620
|
20.0
|
40.0
|
35.5
|
8.5
|
5.4
|
|
DH-040621
|
20.0
|
50.0
|
46.4
|
7.4
|
4.9
|
|
DH-040622
|
20.0
|
60.0
|
56.8
|
6.7
|
4.6
|
|
DH-040604
|
25.4
|
100.0
|
96.4
|
7.7
|
5.7
|
|
DH-040605
|
25.4
|
150.0
|
147.1
|
6.5
|
5.2
|
|
DH-040606
|
25.4
|
200.0
|
197.3
|
6.1
|
5.1
|
|
DH-040630
|
30.0
|
50.0
|
42.3
|
13.5
|
7.7
|
|
DH-040631
|
30.0
|
75.0
|
69.7
|
9.9
|
6.2
|
|
DH-040632
|
30.0
|
90.0
|
85.7
|
8.8
|
5.8
|
|
DH-040607
|
38.1
|
150.0
|
145.2
|
10.3
|
7.4
|
|
DH-040608
|
38.1
|
200.0
|
195.8
|
9.0
|
6.8
|
|
DH-040609
|
38.1
|
300.0
|
296.3
|
8.0
|
6.5
|
|
DH-040640
|
40.0
|
120.0
|
114.2
|
12.1
|
6.7
|
|
DH-040641
|
40.0
|
250.0
|
246.1
|
8.6
|
6.7
|
|
DH-040610
|
50.8
|
400.0
|
395.5
|
9.7
|
7.8
|
|
DH-040611
|
50.8
|
500.0
|
495.9
|
9.0
|
7.5
|
|