Achromatic Doublets Negative Lenses
Design Wavelength:A:486.1nm 587.6nm 656.3nm
         B:706.5nm 855nm 1015nm
         C:1016nm 1330nm 1550nm
Focal Length Tolerance:±1%
Diameter Tolerance:+0.0/-0.1mm
Thickness Tolerance:±0.2mm
Surface Accuracy:λ/4@632.8nm
Surface Quality:60-40
Centration:<3'
Clear Aperture:>90%
Coating:AR A:350-650nm
      B:650-1050nm C:1050-1580nm
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Achromatic Doublets Negative Lenses
NO. Dia EFL BFL Tc Te Material

18ACN127-020-A

12.70

-20.00

-22.30

4.50

6.30

BAFN10 SFL6

18ACN127-020-B

12.70

-20.00

-22.50

4.50

6.40

BAFN10 SFL6

18ACN127-025-A

12.70

-25.00

-27.00

4.00

5.40

BAFN10 SFL6

18ACN127-025-B

12.70

-25.00

-27.70

4.30

5.90

BAFN10 SFL6

18ACN127-030-A

12.70

-30.00

-32.20

3.80

5.70

BAK4 SF5

18ACN127-030-B

12.70

-30.00

-32.00

4.00

5.30

LAKN22 SFL6

18ACN127-050-A

12.70

-50.00

-52.30

3.70

4.60

BAK4 SF5

18ACN127-050-B

12.70

-50.00

-52.50

3.50

4.30

BAFN10 SFL6

18ACN254-040-A

25.40

-40.00

-43.60

7.00

10.60

BAFN10 SF11

18ACN254-040-B

25.40

-40.00

-43.40

6.00

9.80

BAFN10 SFL6

18ACN254-050-A

25.40

-50.00

-53.20

6.50

9.40

BAFN10 SFL6

18ACN254-050-B

25.40

-50.00

-53.80

6.00

9.10

BAFN10 SFL6

18ACN254-075-A

25.40

-75.00

-78.80

6.30

8.60

BAK4 SF5

18ACN254-075-B

25.40

-75.00

-78.90

5.80

7.90

BAFN10 SFL6

18ACN254-100-A

25.40

-100.00

-103.60

6.00

7.70

BAK4 SF5

18ACN254-100-B

25.40

-100.0

-103.90

5.40

6.90

BAFN10 SFL6