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Changchun New Industries Optoelectronics Tech. Co., Ltd

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Tel:     +86-431-87034313

Fax:    +86-431-87033597

Email: cnioptical@cnilaser.com

 

F-θ Lens

 

F-theta lens are commonly used in laser marking, engraving, and cutting systems, which is used in conjunction with XY galvanometer scanner and beam expander to form a two dimensions scanning system, The scan lens is optimized to provide a flat field image with diffraction-limited spot size in micron scale over the entire scan field. The image field height is almost directly proportional to the scan angle. Typically, the linearity f-theta distortion is kept less than 1% without software correction to ensure minimal distortion, High transmissive AR coating is coated onto the lens elements surface to ensure minimal power loss and hence increase the throughput.

CNI typical F-theta lens are 100mm and 160mm focus distance, and there are various focus length and scan field can be selected dependent on your application.

 

F-Theta  lens  λ=355nm 

Focus

F

Working distance S

Maximum scanning range(mm²)

Scanning angle θmax(°)

Incidence beam diameter Ф (mm)

Gauss disc of diffusion diameter(um)

Best scanner location m1/m2 (mm)

Thread sizes

63

59

30*30

±18

6

10

10/10

M39*1

160

174

110*110

±28

7

15

16/16

M85*1

F-Theta  lens  λ=532 nm 

Focus

F

Working distance S

Maximum scanning range(mm²)

Scanning angle θmax(°)

Incidence beam diameter Ф (mm)

Gauss disc of diffusion diameter(um)

Best scanner location m1/m2 (mm)

Thread sizes

100

111

70*70

±28

12

10

16/16

M85*1

160

180

110*110

±28

12

16

16/16

M85*1


F-Theta  lens  λ=1064 nm 

Focus

F

Working distance S

Maximum scanning range(mm²)

Scanning angle θmax(°)

Incidence beam diameter Ф (mm)

Gauss disc of diffusion diameter(um)

Best scanner location m1/m2 (mm)

Thread sizes

63

59

40*40

±25

12

10

16/16

M85*1

100

111

70*70

±28

12

16

16/16

M85*1

160

180

110*110

±28

12

26

16/16

M85*1

210 250 150*150 ±28 12 34 16/16 M85*1
254 280 175*175 ±28 16 31 16/16 M85*1

330

346

220*220

±28

16

40

16/16

M85*1

 
Other EFL and wavelength application can be provided according to clients’ requirements.

 

 
Addr: No.888 Jinhu Road High-tech Zone,Changchun 130103, P.R.China
Email: cnioptical@cnilaser.com   International Tel: +86-431-87034313   Fax:+86-431-87033597   
 
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