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F-Theta Focus Lens

F-Theta Focus Lens
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F-Theta Scan Lens are commonly used in conjunction with galvanometer scanning mirrors in laser engraving, cutting, and marking systems. The reason it being named as F-theta is due to the radialimage height equals to focal length of the lens multiplied by the angle of the chief ray makes in the object space. Hence, from the image height, the distortion of the image can be calculated at each field of interest. Typically the F-theta distortion of this lens is kept lessthan 1% so that it produces a precise spot on the flat field on image plane.

SL Series – F-Theta Scan Lens 10.6um/9.4um

Part No.

EFL (mm)

Scan Field (mm)

Input Beam (mm)

Focus Spot (um)

Scan Angle (±°)

BFL (mm)

Lens Dia (mm)

ET (mm)

Wavelength (um)

SL1-10.6-F75Z-48

75.0

50×50

10.0

147-278

28.0

75.9

48.0

3.0

10.6

SL1-10.6-F100Z-48

100.0

69×69

12.0

107.4

28.0

100.9

48.0

2.4

10.6

SL1-10.6-F150Z-48

150.0

107×107

12.0

161.0

29.0

152.7

48.0

3.1

10.6

SL1-10.6-F200Z-70

200.0

140×140

20.0

324-568

28.0

208.8

70.0

2.8

10.6

SL1-10.6-F200Z-48

200.0

140×140

15.0

171.0

28.0

204.3

48.0

3.0

10.6

SL1-10.6-F250Z-48

250.0

175×175

12.0

412-532

28.0

256.0

48.0

3.2

10.6

SL1-10.6-F250Z-65

250.0

175×175

20.0

324-686

28.0

253.4

65.0

3.2

10.6

SL1-10.6-F300Z-48

300.0

210×210

12.0

488-642

28.0

308.6

48.0

3.9

10.6

SL1-10.6-F360Z-48

360.0

250×250

12.0

582-810

26.8

357.9

48.0

4.0

10.6

SL1-10.6-F420Z-75

420.0

300×300

20.0

442-776

28.0

416.8

75.0

3.4

10.6

SL1-10.6-F420Z-70

420.0

295×295

20.0

442-776

28.0

416.8

70.0

3.5

10.6

SL1-10.6-F430Z-65

430.0

300×300

20.0

450-600

25.0

432.6

65.0

3.7

10.6

SL1-10.6-F435Z-48

433.0

300×300

12.0

604-675

24.9

435.1

48.0

3.0

10.6

SL1-10.6-F450Z-48

448.5

320×320

12.0

718-830

28.0

462.0

48.0

2.8

10.6

SL1-10.6-F480Z-48

480.0

335×335

12.0

772-948

28.0

492.0

48.0

2.6

10.6

SL1-10.6-F480Z-70

480.0

350×350

20.0

470-728

28.0

489.1

70.0

3.9

10.6

SL1-10.6-F550Z-60

561.0

400×400

20.0

528-614

28.0

562.0

60.0

3.8

10.6

SL1-10.6-F573Z-48

573.0

430×430

12.0

926-1032

28.0

582.0

48.0

4.2

10.6

SL1-10.6-F573Z-62

573.0

394×394

20.0

559-796

27.0

581.6

62.0

4.0

10.6

SL1-10.6-F574Z-75

574.0

430×430

20.0

552-792

28.0

591.0

75.0

3.8

10.6

SL1-10.6-F620Z-70

620.0

450×450

20.0

490-590

28.0

636.0

70.0

3.9

10.6

SL1-10.6-F720Z-75

720.0

500×500

20.0

700-960

28.0

741.0

75.0

2.7

10.6

SL1-10.6-F720Z-48

720.7

531×531

12.0

1156-1326

28.0

734.0

48.0

3.0

10.6

SL1-10.6-F740Z-88

740.0

540×540

20.0

752-848

28.0

759.0

88.0

4.2

10.6

SL1-10.6-F830Z-75

830.0

600×600

20.0

816-968

28.0

848.0

75.0

4.0

10.6

SL1-10.6-F977Z-48

976.0

715×715

12.0

1572-1724

28.0

990.5

48.0

3.1

10.6

SL1-10.6-F1100Z-76

1100.0

700×700

25.0

846-1166

25.0

1138.0

76.0

5.2

10.6

SL1-10.6-F1150Z-48

1150.0

800×800

12.0

1854-2040

28.0

1177.0

48.0

3.0

10.6

SL1-10.6-F1191Z-48

1191.6

770×770

12.0

1916-2120

25.0

1220.0

48.0

3.0

10.6

SL1-10.6-F1650Z-48

1650.0

600×600

12.0

2640-2920

28.0

1634.4

48.0

3.0

10.6

SL1-10.6-F2128Z-48

2128.0

1385×1385

12.0

3420-3880

25.0

2176.0

48.0

3.5

10.6

SL1-9.4-F100Z-48

100.0

69×69

12.0

201-402

28.0

97.2

48.0

2.4

9.4

SL1-9.4-F150Z-48

150.0

100×100

12.0

270-473

29.0

146.5

48.0

3.1

9.4

SL1-9.4-F200Z-48

200.0

140×140

12.0

332-554

28.0

197.5

48.0

3.0

9.4

SL1-9.4-F250Z-48

250.0

175×175

15.0

214.0

28.0

256.0

48.0

3.2

9.4

SL1-9.4-F250Z-65

250.0

175×175

20.0

180.0

28.0

253.4

65.0

3.2

9.4

SL1-9.4-F300Z-48

300.0

210×210

12.0

322.0

28.0

308.6

48.0

3.9

9.4

SL1-9.4-F360Z-48

359.1

250×250

12.0

385.0

28.0

369.2

48.0

4.0

9.4

SL1-9.4-F435Z-48

433.0

300×300

12.0

463.5

28.0

444.0

48.0

3.0

9.4

SL1-9.4-F450Z-48

448.5

320×320

12.0

478.0

28.0

462.0

48.0

2.8

9.4

SL1-9.4-F480Z-70

480.0

350×350

20.0

305.0

28.0

496.3

70.0

3.9

9.4

SL1-9.4-F573Z-48

573.0

400×400

12.0

614.0

28.0

591.0

48.0

4.2

9.4

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