BK-7 Plano Concave Lenses

 

 

 

 

  • A useful range of simple negative lenses for general use
  • Available in optical glass and fused silica
  • Standard focal lengths from -15 to -300mm
  • Standard diameters from 10 to 50.8mm
  • Complete range of optional antireflection coatings available

P28a,Lenses,pconcave

These simple negative lenses have many uses. Alone they form a virtual image of a distant object or collimated light source. Used in combination with other optics they reduce the power of the system. Negative lenses are often quite thick. Sharp edges which are common in negative lenses are removed by beveling in order to reduce the likelihood of chipping. BK7 lenses are offered uncoated or with our A55 broadband visible (425-675nm) AR coating. In addition, a wide range of standard anti-reflection coatings for other wavelengths are available for these lenses.

Specifications & Tolerances

Focal length:

±1%

Thickness:

±0.1mm

Surface quality:

20-10

Material:

BK7 grade A

Diameter:

+0, -0.1mm

Centration:

<1arcmin

Aperture:

>90%

Coating:

Optional broadband AR 425-675nm (for other wavelengths see coatings section)

 

 

 

Plano Concave Lenses

Graphic of Data Info

Plano Concave Lenses

UNCOATED

COATED
425-675nm BMAR

Diameter, D (mm)

Focal Length (mm)

Thickness

Price

PRODUCT NUMBER

Price

PRODUCT NUMBER

Center,tc (mm)

Edge,te (mm)

2.0(LaSFN9)

-4.0

0.80

0.95

 

015-0020

 

015-0020-A55

3.0(LaSFN9)

-6.0

0.80

1.00

 

015-0022

 

015-0022-A55

4.0(LaSFN9)

-8.0

0.80

1.00

 

015-0024

 

015-0024-A55

-

-

-

-

 

-

 

-

10.0

-15.0

2.0

3.8

 

015-0040

 

015-0040-A55

10.0

-20.0

2.0

3.3

 

015-0050

 

015-0050-A55

10.0

-25.0

2.0

3.0

 

015-0060

 

015-0060-A55

10.0

-30.0

2.0

2.8

 

015-0061

 

015-0061-A55

10.0

-40.0

2.0

2.6

 

015-0062

 

015-0062-A55

-

-

-

-

 

-

 

-

10.0

-50.0

2.0

2.5

 

015-0063

 

015-0063-A55

12.7

-15.0

2.0

5.3

 

015-0065

 

015-0065-A55

12.7

-20.0

2.0

4.2

 

015-0066

 

015-0066-A55

12.7

-25.0

2.0

3.7

 

015-0067

 

015-0067-A55

12.7

-30.0

2.0

3.4

 

015-0068

 

015-0068-A55

-

-

-

-

 

-

 

-

15.0

-20.0

2.0

5.2

 

015-0070

 

015-0070-A55

15.0

-25.0

2.0

4.4

 

015-0080

 

015-0080-A55

15.0

-30.0

2.0

3.9

 

015-0090

 

015-0090-A55

15.0

-40.0

2.0

3.4

 

015-0095

 

015-0095-A55

15.0

-50.0

2.0

3.1

 

015-0105

 

015-0105-A55

-

-

-

-

 

-

 

-

15.0

-60.0

2.0

2.9

 

015-0106

 

015-0106-A55

20.0

-25.0

2.0

6.7

 

015-0110

 

015-0110-A55

20.0

-30.0

2.0

5.6

 

015-0120

 

015-0120-A55

20.0

-40.0

2.0

4.6

 

015-0130

 

015-0130-A55

20.0

-50.0

2.0

4.0

 

015-0140

 

015-0140-A55

-

-

-

-

 

-

 

-

20.0

-60.0

2.0

3.6

 

015-0142

 

015-0142-A55

20.0

-70.0

2.0

3.4

 

015-0144

 

015-0144-A55

20.0

-80.0

2.0

3.2

 

015-0146

 

015-0146-A55

20.0

-90.0

2.0

3.1

 

015-0147

 

015-0147-A55

20.0

-100.0

2.0

3.0

 

015-0148

 

015-0148-A55

-

-

-

-

 

-

 

-

20.0

-120.0

2.0

2.8

 

015-0149

 

015-0149-A55

20.0

-150.0

2.0

2.6

 

015-0150

 

015-0150-A55

25.0

-30.0

2.0

8.3

 

015-0160

 

015-0160-A55

25.0

-35.0

2.0

7.0

 

015-0161

 

015-0161-A55

25.0

-40.0

2.0

6.2

 

015-0165

 

015-0165-A55

-

-

-

-

 

-

 

-

25.0

-50.0

2.0

5.2

 

015-0170

 

015-0170-A55

25.0

-60.0

2.0

4.6

 

015-0175

 

015-0175-A55

25.0

-70.0

2.0

4.2

 

015-0180

 

015-0180-A55

25.0

-80.0

2.0

3.9

 

015-0190

 

015-0190-A55

25.0

-90.0

2.0

3.7

 

015-0205

 

015-0205-A55

-

-

-

-

 

-

 

-

25.0

-100.0

2.0

3.5

 

015-0220

 

015-0220-A55

25.0

-120.0

2.0

3.3

 

015-0225

 

015-0225-A55

25.0

-150.0

2.0

3.0

 

015-0230

 

015-0230-A55

25.0

-170.0

2.0

2.9

 

015-0235

 

015-0235-A55

25.0

-200.0

2.0

2.8

 

015-0240

 

015-0240-A55

-

-

-

-

 

-

 

-

25.4

-30.0

2.0

8.6

 

015-0270

 

015-0270-A55

25.4

-40.0

2.0

6.3

 

015-0275

 

015-0275-A55

25.4

-50.0

2.0

5.3

 

015-0280

 

015-0280-A55

25.4

-60.0

2.0

4.7

 

015-0282

 

015-0282-A55

25.4

-70.0

2.0

4.3

 

015-0285

 

015-0285-A55

-

-

-

-

 

-

 

-

25.4

-80.0

2.0

4.0

 

015-0290

 

015-0290-A55

25.4

-90.0

2.0

3.8

 

015-0295

 

015-0295-A55

25.4

-100.0

2.0

3.6

 

015-0330

 

015-0330-A55

 For antireflection coatings append appropriate suffix. For smaller diameter lenses see Microlenses. For larger diameter lenses or other focal lengths please call.

Plano Concave Lenses (Continued)

UNCOATED

COATED
425-675nm BMAR

Diameter, D (mm)

Focal Length (mm)

Thickness

Availability

Price

PRODUCT NUMBER

Price

PRODUCT NUMBER

Center,tc (mm)

Edge,te (mm)

25.4

-150.0

2.0

3.0

from stock

 

015-0340

 

015-0340-A55

25.4

-200.0

2.0

2.8

from stock

 

015-0350

 

015-0350-A55

-

-

-

-

-

 

-

 

-

30.0

-35.0

2.0

9.9

2 weeks

 

015-0375

 

015-0375-A55

30.0

-40.0

2.0

8.4

from stock

 

015-0380

 

015-0380-A55

30.0

-50.0

2.0

6.8

from stock

 

015-0390

 

015-0390-A55

30.0

-60.0

2.0

5.9

2 weeks

 

015-0410

 

015-0410-A55

30.0

-70.0

2.0

5.2

2 weeks

 

015-0420

 

015-0420-A55

-

-

-

-

-

 

-

 

-

30.0

-80.0

2.0

4.8

from stock

 

015-0440

 

015-0440-A55

30.0

-90.0

2.0

4.5

2 weeks

 

015-0445

 

015-0445-A55

30.0

-100.0

2.0

4.2

from stock

 

015-0450

 

015-0450-A55

30.0

-120.0

2.0

3.8

2 weeks

 

015-0460

 

015-0460-A55

30.0

-150.0

2.0

3.5

from stock

 

015-0470

 

015-0470-A55

-

-

-

-

-

 

-

 

-

30.0

-170.0

2.0

3.3

2 weeks

 

015-0475

 

015-0475-A55

30.0

-200.0

2.0

3.1

2 weeks

 

015-0480

 

015-0480-A55

30.0

-220.0

2.0

3.0

2 weeks

 

015-0482

 

015-0482-A55

30.0

-250.0

2.0

2.9

2 weeks

 

015-0485

 

015-0485-A55

40.0

-50.0

2.0

11.4

2 weeks

 

015-0490

 

015-0490-A55

-

-

-

-

-

 

-

 

-

40.0

-60.0

2.0

9.3

2 weeks

 

015-0495

 

015-0495-A55

40.0

-70.0

2.0

8.0

2 weeks

 

015-0505

 

015-0505-A55

40.0

-80.0

2.0

7.1

2 weeks

 

015-0510

 

015-0510-A55

40.0

-100.0

2.0

6.0

2 weeks

 

015-0515

 

015-0515-A55

40.0

-150.0

2.0

4.6

2 weeks

 

015-0520

 

015-0520-A55

-

-

-

-

-

 

-

 

-

40.0

-200.0

2.0

3.9

2 weeks

 

015-0525

 

015-0525-A55

40.0

-250.0

2.0

3.6

2 weeks

 

015-0530

 

015-0530-A55

50.0

-70.0

2.0

3.6

2 weeks

 

015-0540

 

015-0540-A55

50.0

-80.0

3.0

11.4

from stock

 

015-0550

 

015-0550-A55

50.0

-100.0

3.0

9.4

from stock

 

015-0560

 

015-0560-A55

-

-

-

-

-

 

-

 

-

50.0

-120.0

3.0

8.2

from stock

 

015-0565

 

015-0565-A55

50.0

-150.0

3.0

7.1

from stock

 

015-0570

 

015-0570-A55

50.0

-200.0

3.0

6.1

from stock

 

015-0580

 

015-0580-A55

50.0

-250.0

3.0

5.4

from stock

 

015-0585

 

015-0585-A55

50.0

-300.0

3.0

5.0

from stock

 

015-0590

 

015-0590-A55

-

-

-

-

-

 

-

 

-

50.8

-70.0

3.0

13.4

from stock

 

015-0610

 

015-0610-A55

50.8

-80.0

3.0

11.7

from stock

 

015-0620

 

015-0620-A55

50.8

-90.0

3.0

10.5

from stock

 

015-0625

 

015-0625-A55

50.8

-100.0

3.0

9.6

from stock

 

015-0630

 

015-0630-A55

50.8

-150.0

3.0

7.3

from stock

 

015-0640

 

015-0640-A55

-

-

-

-

-

 

-

 

-

50.8

-200.0

3.0

6.2

from stock

 

015-0650

 

015-0650-A55

50.8

-250.0

3.0

5.5

from stock

 

015-0660

 

015-0660-A55

50.8

-300.0

3.0

5.1

from stock

 

015-0670

 

015-0670-A55

For antireflection coatings append appropriate suffix. For smaller diameter lenses see Microlenses. For larger diameter lenses or other focal lengths please call.

Merci de contacter Infos Photon Lines pour tout renseignement complémentaire.