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新沪牌镧系光学玻璃
简介
为使光学系统存在的像差降低到一定范围,需使用具有不同折射率和色散的光学玻璃。镧系光学玻璃具有特殊的折射率和色散,不仅可以降低像差,同时可以减少光学系统镜片的数量和重量。目前高质量的光学系统大都选用镧系光学玻璃。
种类
| 牌号 |
nd |
nF-nc |
υd |
|
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1.65950 |
0.01150 |
57.35 |
|
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1.69211 |
0.01269 |
54.54 |
|
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1.74693 |
0.01466 |
50.95 |
|
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1.64050 |
0.01066 |
60.10 |
|
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1.67790 |
0.01221 |
55.52 |
|
|
1.69350 |
0.01299 |
53.38 |
|
|
1.71300 |
0.01325 |
53.83 |
|
|
1.72000 |
0.01428 |
50.41 |
|
|
1.65113 |
0.01165 |
55.89 |
|
|
1.66461 |
0.01217 |
54.61 |
|
|
1.69680 |
0.01240 |
56.18 |
|
|
1.65160 |
0.01114 |
58.49 |
|
|
1.69362 |
0.01410 |
49.19 |
|
|
1.71700 |
0.01497 |
47.89 |
|
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1.74400 |
0.01657 |
44.91 |
|
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1.74950 |
0.02142 |
34.99 |
|
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1.75367 |
0.02008 |
37.55 |
|
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1.75719 |
0.01584 |
47.81 |
|
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1.78179 |
0.02108 |
37.09 |
|
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1.78427 |
0.01899 |
41.30 |
|
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1.78443 |
0.01788 |
43.88 |
|
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1.78831 |
0.01664 |
47.39 |
|
|
1.73520 |
0.01768 |
41.59 |
|
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1.77314 |
0.01555 |
49.72 |
|
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1.78590 |
0.01789 |
43.93 |
|
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1.74330 |
0.01510 |
49.23 |
|
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1.70000 |
0.01455 |
48.11 |
|
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1.68900 |
0.01386 |
49.71 |
|
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1.80100 |
0.02291 |
34.96 |
|
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1.78590 |
0.01778 |
44.20 |
|
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1.85025 |
0.02643 |
32.17 |
|
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1.83400 |
0.02244 |
37.17 |
|
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1.80400 |
0.01726 |
46.58 |
|
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1.77250 |
0.01557 |
49.61 |
|
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1.80166 |
0.01811 |
44.26 |
|
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1.85544 |
0.02338 |
36.59 |
|
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1.80610 |
0.01979 |
40.73 |
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1.83565 |
0.01976 |
42.29 |
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其它牌号的镧系光学玻璃可根据用户要求供货
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