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Double convex lens
Double-Convex Lenses are most suitable where the conjugates are on opposite sides of the lenses and the ratio of the distances is less than 5:1, e.g. as simple image relay components.
Capacity:
Material: Optical glass, Fused silica, Silicon, Germanium, CaF2, MgF2, Sapphire, ZnSe, ZnS
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
Double convex lens.jpg
 
Specification:

Material

BK7 or Fused Silica

Design Wavelength

546.1 nm

Design Index:

 

              BK7

1.5183 ± 0.0005

              Fused Silica

1.46008±0.00005

Diameter Tolerance

+0.00, -0.15 mm

Thickness Tolerance

±0.2 mm

Paraxial Focal Length

±2%

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°

 

BK7 Double-Convex Lens Standard Products:

Part No.

f (mm)

Ф(mm)

R1=R2(mm)

t c (mm)

t e(mm)

f b(mm)

TDX101

8.0

6.0

7.7

3.2

2.0

6.9

TDX102

10.0

10.0

9.45

4.9

2.0

8.2

TDX103

20.0

12.7

20.01

4.0

2.0

18.6

TDX104

50.0

12.7

51.35

2.8

2.0

49.1

TDX105

75.0

12.7

77.3

2.6

2.0

74.1

TDX106

100.0

12.7

103.25

2.4

2.0

99.2

TDX107

25.4

20.0

25.265

6.1

2.0

23.3

TDX108

25.4

25.4

24.712

9.0

2.0

22.2

TDX109

50.0

25.4

50.92

5.2

2.0

48.3

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

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