LBTEK-Your Trusted Partner For Optoelectronic Experiments!

Product Description

UV fused silica glass lens, air-spaced integrated structure, and high damage threshold
Linear f×θ focusing beam height, and proportional input/output beam angular velocity
Flat-field image plane, extended scanning range, low aberration, and minimized F-Theta distortion
External mounting thread M85×1

The LBTEK High-power F-Theta Lens (HPFT) is a high-power flat-field scanning lens assembly that utilizes ultraviolet fused silica glass as the lens substrate, integrated into a mechanical housing through a specific design scheme. The height of the focused beam is f × θ (where θ is the incident angle of the input beam), ensuring that the angular velocities of the input and output beams are directly proportional. This allows the scanning lens to operate at a constant angular speed. Commonly used for focusing laser beams to achieve high-energy-density focal spots, the HPFT enhances laser processing efficiency. It also converts the directional changes of the laser beam by galvanometers into positional changes of the focal point on the processing surface, enabling collaborative aberration correction with galvanometers to compensate for field curvature and distortion in the system. During operation, the high-power F-Theta lens provides a flat-field image plane while significantly simplifying the controlling circuitry. It features high transmittance, an extended scanning range, low aberration, and minimized F-Theta distortion, making it highly suitable for laser processing applications. Compared to LBTEK's standard F-Theta lens, the high-power version offers a higher damage threshold, making it ideal for high-power laser scenarios. LBTEK currently offers standard high-power F-Theta lenses with working wavelengths of 355 nm, 532 nm, and 1064 nm. Custom specifications are also available to meet diverse application requirements. For more details, please consult LBTEK Technical Support.

High-power F-Theta lens, 532 nm

Fused silica material, suitable for high-power applications at 532 nm wavelength
Low aberration design, minimal spot size variation across scanning field
M85×1 external thread

LBTEK offers high-power F-Theta scan lenses with a working wavelength of 532 nm. These lenses utilize an all-UV fused silica lens assembly, featuring a high damage threshold suitable for high-power applications. They can be used in combination with 2D scanning galvanometers and beam expanders. Within their scanning range, the variation in focused spot size between the center and edge is minimal, making them ideal for precision laser processing equipment. Currently, LBTEK provides 532 nm high-power scan lenses with focal lengths of 164 mm, 330 mm, 350 mm, and 420 mm. For more detailed information, please consult LBTEK Technical Support.

HPFT-532-10-164-127 Structural Diagram

Product Model	Operating Wavelength	Focal length	Scan range<sup>b</sup>	Unit Price	Lead Time
HPFT-532-14-75-34	532 nm	75 mm	34 mm / 24 mm×24 mm	$2022.57	5 weeks
HPFT-532-14-450-438	532 nm	450 mm	438 mm / 310 mm×310 mm	$2012.11	5 weeks
HPFT-532-14-650-580	532 nm	650 mm	580 mm / 410 mm×410 mm	$2053.94	5 weeks
HPFT-532-14-330-230	532 nm	330 mm	230 mm / 160 mm×160 mm	$1680.29	5 weeks
HPFT-532-14-420-396	532 nm	420 mm	396 mm / 280 mm×280 mm	$1575.43	5 weeks
HPFT-532-14-350-354	532 nm	350 mm	354 mm / 250 mm×250 mm	$2791.32	5 weeks
HPFT-532-10-164-127	532 nm	164 mm	127 mm / 90 mm×90 mm	$2256.59	5 weeks

High-power F-Theta lens, 1064 nm

Fused silica material, suitable for high-power applications at 1064 nm wavelength
Low aberration design, minimal spot size variation across the scanning field
M85×1 external thread

LBTEK offers high-power F-Theta scan lenses with a working wavelength of 1064 nm. These lenses utilize an all-UV fused silica lens assembly, featuring a high damage threshold suitable for high-power applications, and can be used in combination with 2D galvanometer scanners and beam expanders. Within their scanning range, the variation in focused spot size between the center and edge is minimal, making them ideal for precision laser processing equipment. Currently, LBTEK provides 1064 nm high-power scan lenses with focal lengths of 163 mm, 255 mm, 350 mm, 423 mm, 453 mm, and 657 mm. For more detailed information, please consult LBTEK Technical Support.

HPFT-1064-15-163-127 Structure Diagram

Product Model	Operating Wavelength	Focal length	Scan range<sup>b</sup>	Unit Price	Lead Time
HPFT-1064-20-255-160	1064 nm	255 mm	160 mm / 114 mm×114 mm	$2157.23	5 weeks
HPFT-1064-14-350-354	1064 nm	350 mm	354 mm / 250 mm×250 mm	$2087.94	5 weeks
HPFT-1064-15-163-127	1064 nm	163 mm	127 mm / 90 mm×90 mm	$1771.54	5 weeks
HPFT-1064-15-170-141-T	1064 nm	170 mm	141 mm / 100 mm×100 mm	$3018.81	5 weeks
HPFT-1064-17-450-438	1064 nm	450 mm	438 mm / 310 mm×310 mm	$1629.03	5 weeks
HPFT-1064-14-423-360	1064 nm	423 mm	360 mm / 255 mm×255 mm	$1222.82	5 weeks
HPFT-1064-24-430-368	1064 nm	430 mm	368 mm / 260 mm×260 mm	$4407.28	5 weeks
HPFT-1064-20-657-580	1064 nm	657 mm	580 mm / 410 mm×410 mm	$1563.27	5 weeks
HPFT-1064-14-453-452	1064 nm	453 mm	452 mm / 320 mm×320 mm	$1243.35	5 weeks

High-power F-Theta lens, 355 nm

Fused silica material, suitable for high-power applications at 355 nm wavelength
Low aberration design, minimal spot size variation across scanning field
M85×1 external thread

LBTEK offers high-power F-Theta scan lenses with a working wavelength of 355 nm. These lenses utilize an all-UV fused silica lens group, featuring a high damage threshold suitable for high-power applications, and can be used in combination with 2D scanning galvanometers and beam expanders. Within their scanning range, the variation in focused spot size between the center and edge is minimal, making them ideal for precision laser processing equipment. Currently, LBTEK provides 355 nm high-power scan lenses with focal lengths of 103 mm, 170 mm, 255 mm, 350 mm, and 420 mm. For more detailed information, please consult LBTEK Technical Support.

HPFT-355-10-170-141 Structural Diagram

Product Model	Operating Wavelength	Focal length	Scan range<sup>b</sup>	Unit Price	Lead Time
HPFT-355-10-70-40	355 nm	73.9 mm	39.6 mm / 28 mm×28 mm	$1547.98	5 weeks
HPFT-355-10-125-71-T	355 nm	125 mm	71 mm / 50 mm×50 mm	$2036.95	5 weeks
HPFT-355-9-103-71	355 nm	103 mm	71 mm / 50 mm×50 mm	$1433.58	5 weeks
HPFT-355-14-350-347	355 nm	350 mm	347 mm / 245 mm×245 mm	$2501.73	5 weeks
HPFT-355-14-420-396	355 nm	420 mm	396 mm / 280 mm×280 mm	$1470.84	5 weeks
HPFT-355-10-170-141	355 nm	170 mm	141 mm / 100 mm×100 mm	$2366.41	5 weeks

High Power F-Theta Lens