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Achromat Lens
Achromatic doublet lenses have significantly better optical performance than singlet lenses in visible imaging and laser beam manipulation applications. Achromatic Lenses are consist of two elements, usually of a positive low-index crown glass cemented to a negative high-index flint glass that have been corrected for chromatic aberration with respect to two or more selected wavelengths. We provide achromatic lenses consisting of two elements. These lenses have considerably reduced not only chromatic aberration bust also spherical aberration and coma aberration. These are designed with respect to three wavelength 480.0nm, 546.1nm and 643.8nm.
Capacity:
Material: Optical glass.
Diameter: 0.5 to 350 mm
Diameter Tolerance: +0/-0.02 mm
Thickness Tolerance: ±0.01 mm
Surface Quality: 10-5
Surface Figure: λ/10
Centration: 1 minute or 30 Second
Coating: Uncoated, AR and HR
Achromat Lens.jpg

 

Specification:

Material

BK7 grade A optical glass

Design Wavelength

480.0nm,546.1nm,643.8 nm

Diameter Tolerance

+0.0, -0.15 mm

Thickness Tolerance

±0.2 mm

Paraxial Focal Length

±2% @546.1 nm

Centration

<3 arc minutes

Clear Aperture

>85%

Surface Irregularity

λ/4@632.8 nm

Surface Quality

60-40 scratch and dig

Protective Bevel

0.25 mm x 45°

 

 

Positive Achromatic Lens Standard Products:
 

Part No.

f (mm)

Ф (mm)

R1 (mm)

R2=R3 (mm)

R4   (mm)

tc1

(mm)

t c2

(mm)

f b

(mm)

Lens
A

Lens  B

TPA101

10.0

6.0

6.546

-4.055

-23.23

3.6

0.8

7.54

SK9

SF15

TPA102

20.0

10.0

12.32

-0.902

-25.23

3.8

1.0

17.625

BK7

SF5

TPA103

30.0

12.7

18.535

-13.49

-37.84

4.0

1.3

27.36

BK7

SF5

TPA104

40.0

12.7

25.23

-17.539

-48.75

3.4

1.3

37.778

BK7

SF5

TPA105

50.0

18.0

31.69

-22.0

-60.57

4.8

1.5

46.987

BK7

SF5

Note: Other size, material and coating are available upon request.

 

 

Negative Achromatic Lens Standard Products:
 

Part No.

f (mm)

Ф (mm)

R1 (mm)

R2=R3 (mm)

R4   (mm)

tc1

(mm)

t c2

(mm)

f b

(mm)

Lens
A

Lens  B

TNA101

-25

12.7

-15.6

13.09

44.16

3.0

2.67

-27.5

BK7

F2

TNA102

-40

12.7

-24.45

17.97

66.6

3.0

2.34

-42.5

BK7

F2

Note: Other size, material and coating are available upon request.

 

 

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ADD:No. 1567 Liu Ying Lu, Kuan Cheng District, Chang Chun,P.R. China      Tel:+86-431-89851801      Fax:+86-431-89851801      E-mail:info@tc-optics.com
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