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| Positive | Negtive |
Negtive Achromatic Lenses
Specifications:
Material: BK7 grade A optical glass
¡À0.2mm
Design Wavelength: 632.8 nm,
Design Index: n=1.5147
Surface Figure: x: l/2; y: 2l
Dimension Tolerance:
Paraxial Focal Length: ¡À2%
Centration: 3 arc minutes
Clear Aperture: >80%
Surface Quality: 60-40 scratch and dig
Bevel: 0.25 mm x 45¡ã
| Part No. | f(mm) | f(mm) | R1(mm) | R2=R3(mm) | R4(mm) | TC1(mm) | TC2(mm) | fb(mm) | Lens A | Lens B | Price |
ACL0211 |
-25 |
12.7 |
-15.60 |
13.09 |
44.16 |
3.00 |
2.67 |
-27.5 |
BK7 |
F2 |
$34 |
ACL0212 |
-40 |
12.7 |
-24.45 |
17.97 |
66.60 |
3.00 |
2.34 |
-42.5 |
BK7 |
F2 |
$31 |
ACL0311 |
-50 |
25.4 |
-31.19 |
24.89 |
85.31 |
3.00 |
4.22 |
-53.3 |
BK7 |
F2 |
$36 |
ACL0312 |
-100 |
25.4 |
-60.67 |
43.05 |
160.69 |
3.00 |
3.60 |
-102.6 |
BK7 |
F2 |
$34 |
Copyright 1998 CASIX, Inc. All rights reserved.
Last Revised: Jan 28, 1999
Web Page maintained by : Contact@CASIX.com
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