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N-BK7 Lenses

Material:----------------------------------------------------------N-BK7
Design Wavelength:-----------------------------------------546.1nm
Design Index:--------------------------------------------------1.5183 ±0.0005
Diameter Tolerance:----------------------------------------- +0.0, -0.15mm
Paraxial Focal Length Tolerance:------------------------- ±2%
Centration: ----------------------------------------------------- 3 arc minutes
Clear Aperture: ------------------------------------------------ >85%
Surface Figure: Power(N)-------------------------------------<3
 Irregularity(N) --------------------------------------------------<0.5
Surface Quality: ---------------------------------------------- 60/40 scratch/dig
Bevel:------------------------------------------------------------ 0.25 mm x 45°
Coating:--------------------------------------------------------- Uncoated 

N-BK7 Plano Convex Lens 

Part No.

f (mm)

F (mm)

R1 (mm)

t c (mm)

t e (mm)

f b (mm)

PCX1101

6.0

4.0

3.101

1.5

0.77

5.0

PCX1102

10.0

5.0

5.17

1.64

1.64

1.0

PCX1103

8.0

6.0

4.15

3.3

2.0

5.8

PCX1104

10.0

6.0

5.18

3.0

2.0

8.0

PCX1201

15.0

12.7

7.78

5.3

2.0

11.5

PCX1202

20.0

12.7

10.37

4.2

2.0

17.2

PCX1203

25.0

12.7

12.96

3.7

2.0

22.6

PCX1204

30.0

12.7

15.55

3.4

2.0

27.8

PCX1205

40.0

12.7

20.73

3.0

2.0

38.0

PCX1206

50.0

12.7

25.92

2.8

2.0

48.2

PCX1207

35.0

20.0

18.155

4.2

1.2

32.2

PCX1208

40.0

20.0

20.73

4.5

1.9

37.0

PCX1209

50.0

20.0

25.936

4.0

2.0

47.4

PCX1303

50.0

25.4

25.92

5.3

2.0

46.5

PCX1309

60.4

25.4

13.1

4.7

2.0

56.9

PCX1304

75.0

25.4

38.87

4.1

2.0

72.3

PCX1305

100.0

25.4

51.83

3.6

2.0

97.6

PCX1306

125.0

25.4

64.79

3.3

2.0

122.8

PCX1307

150.0

25.4

77.75

3.0

2.0

148.0

PCX1308

200.0

25.4

103.66

2.8

2.0

198.2

PCX1310

250.0

25.4

129.575

2.63

2.0

248.3

 N-BK7 Double Convex Lens

Part No.

f (mm)

F (mm)

R1=R2 (mm)

t c (mm)

t e (mm)

f b (mm)

DCX1201

20.0

12.7

20.01

4.0

2.0

18.6

DCX1202

25.0

12.7

25.28

3.6

2.0

23.8

DCX1203

30.0

12.7

30.52

3.3

2.0

28.9

DCX1204

40.0

12.7

40.95

3.0

2.0

39.0

DCX1301

25.4

25.4

24.71

9.0

2.0

22.2

DCX1314

35.0

25.4

35.09

6.8

2.0

32.8

DCX1315

40.0

25.4

40.40

6.1

2.0

37.9

DCX1302

50.0

25.4

50.92

5.2

2.0

48.3

DCX1316

60.0

25.4

61.40

4.7

2.0

58.5

DCX1303

75.0

25.4

77.04

4.1

2.0

73.6

DCX1304

100.0

25.4

103.05

3.6

2.0

98.8

DCX1305

125.0

25.4

129.02

3.3

2.0

123.9

DCX1306

150.0

25.4

154.97

3.0

2.0

149.0

DCX1307

200.0

25.4

206.84

2.8

2.0

199.0

DCX1308

250.0

25.4

258.70

2.6

2.0

249.1

DCX1309

300.0

25.4

310.55

2.5

2.0

299.2

DCX1310

400.0

25.4

413.80

2.4

2.0

399.0

DCX1311

500.0

25.4

517.91

2.3

2.0

499.2

DCX1312

750.0

25.4

774.30

2.3

2.0

748.8

DCX1313

1000.0

25.4

1036.23

2.2

2.0

999.3

 N-BK7 Double Concave Lens

Part No.

f (mm)

F (mm)

R1=R2 (mm)

t c (mm)

t e (mm)

f b (mm)

DCV1201

-25.0

12.7

26.25

2.0

3.6

-25.7

DCV1202

-30.0

12.7

31.44

2.0

3.3

-30.7

DCV1203

-40.0

12.7

41.80

2.0

3.0

-40.7

DCV1204

-50.0

12.7

52.17

2.0

2.8

-50.7

DCV1301

-25.0

25.0

26.25

2.0

8.6

-25.7

DCV1302

-35.0

25.4

36.62

2.0

6.5

-35.7

DCV1303

-50.0

25.4

52.17

2.0

5.1

-50.7

DCV1305

-75.0

25.4

78.09

2.0

4.1

-75.7

DCV1306

-100.0

25.4

104.00

2.0

3.6

-100.7