YAG Laser Focusing Lenses
 

1. Single-element Focusing Lens

 

Description of Part Number: FL-xxxx-F-D-T-yy

FL: single-element focusing lens

Xxxx: laser wavelength, 1064nm, 532nm etc.

F: focal length, mm

D: lens diameter, mm

T: lens edge thickness, mm

Yy: others

Coating: di-electric coating at 1064nm.

 

Part number

wavelength nm

Focal length mm

Dia. mm

Thickness mm

FL-1064-F14-D20-T2.3

1064

14

20

2.3

FL-1064-F24-D24-T2.1

1064

24

24

2.1

FL-1064-F30-D20-T2.3

1064

30

20

2.3

FL-1064-F35-D22-T2.3

1064

35

22

2.3

FL-1064-F37-D27-T2.5

1064

37

27

2.5

FL-1064-F54-D22-T2.7

1064

54

22

2.7

FL-1064-F54-D28-T3.0

1064

54

28

3.0

FL-1064-F55-D25

1064

55

25

 

FL-1064-F55-D31-T2.6

1064

55

31

2.6

FL-1064-F57-D27-T2.6

1064

57

27

2.3

FL-1064-F60-D23-T2.1

1064

60

23

2.1

FL-1064-F67-D23-T2.1

1064

67

23

2.1

FL-1064-F69-D23-T2.1

1064

69

23

2.1

FL-1064-F69-D24-T2.2

1064

69

24

2.2

FL-1064-F69-D31-T2.4

1064

69

31

2.4

FL-1064-F72-D36-T1.5

1064

72

36

1.5

FL-1064-F73-D36-T1.6

1064

73

36

1.6

FL-1064-F73-D35-T2.3

1064

73

36

2.3

FL-1064-F75-D25-T3

1064

75

25

3.0

FL-1064-F75-D30

1064

75

30

 

FL-1064-F75-D32-T3.0

1064

75

32

3.0

FL-1064-F79-D22-T3.5

1064

79

22

3.5

FL-1064-F79-D28-T3.0

1064

79

28

3.0

FL-1064-F79-D34-T2.5

1064

79

34

2.5

FL-1064-F80-D25-T2.3

1064

80

25

2.3

FL-1064-F80-D50-T2.7

1064

80

50

2.7

FL-1064-F81-D50-T2.7

1064

81

50

2.7

FL-1064-F82-D36-T2.4

1064

82

36

2.4

FL-1064-F83-D23-T2.1

1064

83

23

2.1

FL-1064-F85-D31-T2.1

1064

85

31

2.1

FL-1064-F86-D23-T2.3

1064

86

23

2.3

FL-1064-F87-D23-T4.5

1064

87

23

4.5

FL-1064-F87-D25-T4.2

1064

87

25

4.2

FL-1064-F87-D31-T3.2

1064

87

31

3.2

FL-1064-F87-D36-T2.2

1064

87

36

2.2

FL-1064-F88-D48-T2.3

1064

88

48

2.3

FL-1064-F90-D31-T2.3

1064

90

31

2.3

FL-1064-F99-D36-T2.5

1064

99

36

2.5

FL-1064-F100-D25-T3

1064

100

25

3.0

FL-1064-F100-D31-T2.5

1064

100

31

2.5

FL-1064-F104-D35-T2.3

1064

104

35

2.3

FL-1064-F108-D35-T2.9

1064

108

35

2.9

FL-1064-F120-D31-T2.3

1064

120

31

2.3

FL-1064-F124-D22-T4.0

1064

124

22

4.0

FL-1064-F124-D27-T3.6

1064

124

27

3.6

FL-1064-F124-D48-T3.0

1064

124

48

3.0

FL-1064-F126-D53-T3.0

1064

126

53

3.0

FL-1064-F127-D25-T2.3

1064

127

25

2.3

FL-1064-F150-D40-T5.5

1064

150

40

5.5

FL-1064-F155-D27-T3.4

1064

155

27

3.4

FL-1064-F200-D20-T2.5

1064

200

20

2.5

FL-1064-F833-D24-T2.1

1064

833

24

2.1

532nm coating is also available for above dimensions and thus thie part numbes will be FL-532-xxx etc.

 

2. Multi-element Focusing Lenses

 

Multi-element focusing lens consists of a few lenses to obtain better image quality and smaller focused beam diameters. It is mainly used in laser scribing, engraving, laser XY-moving markin, laser welding etc.

 

Part number description: FLM-xxxx-F-N-D-yy

FLM: multi-element focusing lens

Xxxx: laser wavelength, 1064nm, 532nm, 10.6um etc.

F: focal length, mm

N: number of lenses

D: outside diameter, mm

yy: others

 

(1) XD Series Multi-element Focusing Lenses

 

 

Part number

LFM-1064-N2-F76-D44-XD

LFM-1064-N3-F72-D54-XD

LFM-1064-N5-F75-D60-XD

Number of lenses

2

3

5

Focal length (mm)

75.772

72.122

75.202

Working distance (mm)

68.437

66.759

56.911

Input aperture (mm)

Φ24

Φ30

Φ30

Wavelength (mm)

1064

1064

1064

Transmittance

>95%

>95%

>90%

Focused beam dia. (mm)

<0.01

<0.01

<0.01

Connection (mm)

M39×1

M48×1

M56×0.75

Dimension (AxBxC, mm)

44x16x36

54x25x44

60x42x56

 

(2) TK Series Multi-element Focusing Lenses 

 

 

Part number

WL

nm

FL

mm

Aperture

mm

Diffraction

Spot, um

WD

mm

D

mm

Connection

M

LFM-1064-N3-F78-D60-TK

1064

78

43

11

64.7

60

M56×1

LFM-1064-F80-D60-TK

1064

80

40

4

69.5

60

M56×1

LFM-1064-N3-F62-D60-TK

1064

62

43

10

46.7

60

M56×1

LFM-532-N3-F75-D60-TK

532

74

43

12

60.7

60

M56×1

LFM-532-N5-F80-D60-TK

532

80

40

10

49.5

60

M56×1

LFM-532-F80-D60-TK

532

80

40

10

64.5

60

M56×1

LFM-355-N3-F45-D32-TK

355

45

15

8

37.3

32

M30×0.75

LFM-355-N3-F60-D32-TK

355

60

22

8

52.4

32

M30×0.75

WL: wavelength; FL: focal length; WD: working distance; D: outside diameter.

 

CO2 laser focusing lenses       Laser mirror        Doanload data sheet "Mirrors & Lenses"
Reference: Calculation of Focused Beam Spot Size with a Focusing Lens)