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Achromatic Doublets
¡§Computer-optimized
for
infinite conjugation
¡§Excellent
performance
The
achromatic-doublet consists of a positive low-index (crown
glass) and a negative high-index (flint glass) lens. These
lenses are computer-optimized for infinite conjugate ratio.
They also exhibit excellent paraxial performance, with minimal
spherical aberration, coma and chromatic aberration. When
used for focusing or collimating, the convex lens or the smaller
radius surface should face the collimated light, when used
for imaging the convex lens should face the object or the
image with that is farthest away.o:p>Large
aperture achromatic lenses are air-spaced, and can be found
under DH-0406.
Material: Optical glass (crown and flint)
Focal Length (f'): ¡À2%
Diameter (F): -0.10mm
Center Thickness (Tc): ¡À0.1mm
Centration: 3 arc minutes
Fringes: 1~5
Irregularity of Fringes: 0.1~0.5
Surface Quality: 20-10 scratch-dig
Coating: MgF2 AR coated
Clear Aperture: 90% ¦µ
DH-0406:
BK7 Achromatic Doublets
(All
dimensions are in mm unless otherwise specified.
Due to our strong technique, we can also supply custom components for your special requirements.)
|
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
|
|
|
|
|
| All
rights Resevered: Changchun Deheng Optics Co.,Ltd¡¡ ADD:5-9£¬Dongling
Nan Street,Changchun,Jilin,China Postal Code:130022
Tel:+86-431-5202975¡¡ Fax:+86-431-5202965
E-mail:info@dhoptics.com
¡¡
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