TianCheng Optics CO., Ltd.
TianCheng Optics CO., Ltd.
  • an achromatic lens

Achromatic Lens

An achromatic lens is a lens that is designed to limit the effects of chromatic and spherical aberration. Achromatic doublet lenses have significantly better optical performance than singlet lenses in visible imaging and laser beam manipulation applications. We provide custom achromatic lenses consisting 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.



  • an achromatic lens

Specification of Achromatic Lens


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°


Achromatic Lens 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



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



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



Contact Us

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TianCheng Optics CO., Ltd.
Tian Cheng Optics CO.,Ltd
  • Address

    No. 1567 Liu Ying Lu, Kuan Cheng District, Chang Chun, P.R. China

  • Call Us

    86-431-89851801

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