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Double-Convex Lens

 

Double-Convex Lens, also named Bi-Convex Lens, is most suitable where the object and image are on opposite sides of the lens and the ratio of the image and object (conjugate ratio) distances is between 0.2 to 5. It is used in beam expanders,. Projection optics systems, optical viewers etc.

Applications:

Beam Expanders
Projection Optics System
Imaging Optics Systems
Optical Viewers
Optical Character Readers


BK7 Double-Convex Lens

Specifications:
Material BK7 grade A optical glass
Design Wavelength 546.1nm
Design Index 1.51830.0005
Diameter Tolerance +0.00/-0.15mm
Paraxial Focus Length 2% @546.1nm
Centration
<3 arc minutes
Clear Aperture >Central 85% of diameter
Surface Figure /4@632.8nm
Surface Quality 60-40 S/D
Protective Bevel <0.25mm x 45

BK7 Double-Convex Lens Standard Products:
Part No.
f (mm)
(mm)
R1=R2(mm)
tc (mm)
te (mm)
fb (mm)
LDX0104
8.0
6.0
7.700
3.2
2.0
6.9
LDX0105
10.0
10.0
9.450
4.9
2.0
8.2
LDX0202
20.0
12.7
20.010
4.0
2.0
18.6
LDX0206
50.0
12.7
51.35
2.8
2.0
49.1

LDX0207

75.0

12.7

77.30

2.6

2.0

74.1

LDX0208

100.0

12.7

103.25

2.4

2.0

99.2

LDX0209

25.4

20.0

25.265

6.1

2.0

23.3

LDX0302

25.4

25.4

24.712

9.0

2.0

22.2

LDX0305

50.0

25.4

50.92

5.2

2.0

48.3

LDX0307

100.0

25.4

103.05

3.6

2.0

98.8

LDX0311

200.0

25.4

206.84

2.8

2.0

199.0

LDX0314

500.0

25.4

517.91

2.3

2.0

499.2

LDX0315

1000.0

25.4

1036.23

2.2

2.0

999.3

LDX0316

50.0

30.0

50.731

6.5

2.0

47.8

LDX0317

500.0

30.0

518.306

2.4

2.0

499.2

LDX0402

50.0

38.0

49.97

10.5

3.0

46.4

LDX0403

100.0

38.0

102.52

6.5

3.0

97.8

LDX0405

200.0

38.0

206.51

4.8

3.0

198.4

LDX0407

500.0

38.0

517.67

3.7

3.0

498.8

LDX0408

700.0

38.0

725.02

3.5

3.0

698.8

LDX0410

50.8

38.1

51.063

9.3

1.9

47.6

LDX0501

100.0

50.0

102.06

9.2

3.0

96.9

LDX0503

200.0

50.0

206.28

6.0

3.0

198.0

LDX0505

400.0

50.0

413.87

4.5

3.0

398.5

LDX0507

500.0

50.0

517.58

4.2

3.0

498.6

LDX0508

600.0

50.0

621.28

4.0

3.0

598.7

LDX0509

800.0

50.0

828.64

3.8

3.0

798.7

LDX0601

500.0

80.0

517.678

6.1

2.0

498.0

LDX0602

250.0

100.0

257.0

13.7

3.9

245.4


Fused Silica Double-Convex Lens

Specifications:
Material UV grade fused silica
Design Wavelength 546.1nm
Design Index 1.460080.00005
Diameter Tolerance +0.00/-0.15mm
Paraxial Focus Length 2% @546.1nm
Centration
<3 arc minutes
Clear Aperture >Central 85% of diameter
Surface Figure /4@632.8nm
Surface Quality 60-40 S/D
Protective Bevel <0.25mm x 45

Fused Silica Double-Convex Lens Standard Products:
Part No.
f (mm)
(mm)
R1=R2(mm)
tc (mm)
te (mm)
fb (mm)
LDX1104
8.0
6.0
6.780
3.4
2.0
6.7
LDX1105
10.0
10.0
8.680
3.1
2.0
8.9

LDX1201

15.0

12.7

6.900

6.2

2.0

10.8

LDX1202

20.0

12.7

9.200

4.5

2.0

16.9

LDX1203

25.0

12.7

11.500

3.9

2.0

22.3

LDX1204

30.0

12.7

13.800

3.6

2.0

27.5

LDX1205

40.0

12.7

18.400

3.1

2.0

37.9

LDX1301

35.0

25.4

16.100

8.2

2.0

29.4

LDX1302

50.0

25.4

23.000

5.8

2.0

46.0

LDX1303

75.0

25.4

34.510

4.4

2.0

72.0

LDX1304

100.0

25.4

46.01

3.8

2.0

97.4

LDX1305

150.0

25.4

69.01

3.2

2.0

147.8

LDX1306

175.0

25.4

80.51

3.0

2.0

172.9

LDX1307

200.0

25.4

92.02

2.9

2.0

198.0

LDX1308

250.0

25.4

115.02

2.7

2.0

248.2

LDX1309

300.0

25.4

138.02

2.6

2.0

298.2

LDX1310

500.0

25.4

230.04

2.4

2.0

498.4

LDX1311

1000.0

25.4

460.08

2.2

2.0

998.5

LDX1401

50.0

38.0

23.000

13.0

3.0

41.1

LDX1402

100.0

38.0

46.01

7.1

3.0

95.1

LDX1403

150.0

38.0

69.01

5.7

3.0

146.1

LDX1404

200.0

38.0

92.02

5.0

3.0

196.6

LDX1405

350.0

38.0

161.03

4.1

3.0

347.2

LDX1406

500.0

38.0

230.04

3.8

3.0

497.4

Note: Cutting Lens, Square Lens, Rectangle Lens and Coatings are available upon request.

Metal Mount is available upon request. Lenses with material B270, Pyrex, Sapphire, Silicon, Germanium, CaF2, ZnSe etc. are also available upon request.

The general tolerance specifications above provide a guideline regarding manufacturing capabilities for optics ranging in size from diameter 0.6-350mm. The manufacturing limits are not absolute; tighter tolerances may be possible. Part specific tolerances may vary depending on component size, shape, and/or material

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