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F Theta Lens

The 1064nm laser F-THETA field lens provided by Suntop adopts high-quality optical design and modern manufacturing technology. Widely used in laser engraving, laser marking industry. F-THETA field lens can obtain high-quality flat-field effect and minimum geometric distortion under the premise of ensuring that the spot reaches the diffraction limit. Suntop laser provides a variety of product models and customer customization options.
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The role of f theta lens

• Focusing the collimated laser beam on a smaller area of the focal point increases the energy density of the laser beam and improves the capability and efficiency of laser processing.  

• Converts the change of laser beam direction by the oscillator into the change of focal point on the position of the processed material, thus realizing high-speed and precise laser processing machining.


Features of f theta lens

1. 1064 nm design wavelength for Nd:YAG laser system.

2. Flat image plane.

3. Large scanning range: 70 mm x 70 mm to 300 mm x 300 mm.

4. F-Theta distortion less than 0.1% or 1.3%.

5. Optional M85 x 1.0M39 x 1.0 thread version.

6. Air gap design.

7. All optical elements are coated with transparency-enhancing film.


Hot specifications of f theta lens

Model

Focal Length (mm)

Scan Field (mm)

Thread

FL-1064-50-80

80

50*50

M85*1

FL-1064-70-100

100

70*70

M85*1

FL-1064-110-160

160

110*110

M85*1

FL-1064-150-210

210

150*150

M85*1

FL-1064-175-254

254

175*175

M85*1

FL-1064-200-290

290

200*200

M85*1

FL-1064-220-330

330

220*220

M85*1

FL-1064-270-380

380

270*270

M85*1

FL-1064-300-420

420

300*300

M85*1

We can provide field mirrors with different scanning ranges according to customer requirements, and support customization.


Common applications of f theta lens

• Perforating and precision cutting of metal or pottery (e.g. micro holes in PCBs)

• Plastic welding (e.g. fusing plastics without filler material)

Shaping and piercing of metal or non-metallic materials (e.g. openings/vents)

• Marking (e.g. smart cards, integrated circuits, printed boards, keyboards and dashboards, etc.)

• Cleaning of industrial products (e.g. lenses) or restoration applications (e.g. monuments, etc.)


Parameters of cleaning laser lenses

Product Name

F-Theta Scan Lens

Wavelength

1064nm/355nm/532nm/10.6um/1550nm

Specification

50x50F=63MM~600X600F=900mm


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