LBTEK-Scan Lens

Product Description

Telecentric Optical Path with f-Theta Aberration Correction
Flat-Field Spot Uniformity for Consistent Imaging Performance
Compatible With Tube Lenses, Objectives, and More

LBTEK Scan Lenses are key optical components in laser scanning systems, typically used in conjunction with galvanometer scanners. Their design is built on two core functions: flat-field focusing and linear scanning. Through a multi-element lens configuration that introduces a predetermined amount of negative distortion, the scan lens flattens the focal surface while maintaining a linear relationship between the spot position (y) on the focal plane and the beam deflection angle (θ), i.e., y = f × θ (where f is the lens focal length). In addition, the image-space telecentric optical path ensures that chief rays are parallel to the optical axis, providing consistent incidence angles and uniform illumination across the full field of view. Combined with full-field aberration correction, this approach enhances spot size uniformity and imaging resolution consistency, meeting the critical requirements of high-precision scanning applications such as OCT and confocal microscopy. LBTEK offers scan lenses with various scan angles and field sizes, covering wavelengths from 400 to 1800 nm with focal lengths from 18 to 110 mm. Select the appropriate model for your specific application — contact LBTEK Technical Support for details.

Scan Lens for Laser Scanning Microscopy System

Designed for Laser Scanning Microscopy Systems
Scan Angles: ±7.8° × ±7.8°, ±8.1° × ±8.1°
Thread Specifications: SM30, SM2

LBTEK Scan Lenses feature a telecentric design with f-theta aberration correction, converting the angular deflection from a galvanometer scanner into linear displacement on the focal plane — effectively suppressing geometric distortion and delivering a flat image plane. This series is primarily designed for laser scanning microscopy systems and can be paired with tube lenses and objectives to form a telecentric imaging path. The operating wavelength range covers visible to near-infrared, with options of 400–750 nm, 450–1100 nm, 680–1300 nm, and 800–1800 nm to suit various applications.

The scan lens is mounted on the five-axis adjuster AMM5-1AC via a threaded adapter.

Product Model	Operating Wavelength	Entrance Pupil Diameter	Focal length	Unit Price	Lead Time
LBSL4-70-27-A	400–750 nm	4 mm	70 mm	$1,949.96	8 weeks	Add Cart
LBSL4-50-20-CLS2	450-1100 nm	4 mm	50 mm	$2,286.55	today	Add Cart
LBSL5-50-20-2P2	680–1300 nm	5 mm	50 mm	$2,286.55	today	Add Cart
LBSL5-50-20-3P	800-1800 nm	5 mm	50 mm	$3,065.96	today	Add Cart

Product Model	Operating Wavelength	Entrance Pupil Diameter	Focal length	Unit Price	Lead Time
LBSL4-39-15-A	400–700 nm	4 mm	39 mm	$1,018.83	today	Add Cart
LBSL6-54-27-850	750–950 nm	6 mm	54 mm	$1,631.45	today	Add Cart
LBSL4-54-20-950	800-1100 nm	4 mm	54 mm	$1,051.86	today	Add Cart
LBSL4-18-7-950	800–1100 nm	4 mm	18 mm	$1,685.59	today	Add Cart
LBSL4-36-13-950	800–1100 nm	4 mm	36 mm	$1,051.86	today	Add Cart
LBSL8-110-41-950	800–1100 nm	8 mm	110 mm	$1,212.90	8 weeks	Add Cart
LBSL6-54-27-1050	950–1150 nm	6 mm	54 mm	$1,631.45	8 weeks	Add Cart
LBSL6-54-27-1310	1200–1400 nm	6 mm	54 mm	$1,631.45	8 weeks	Add Cart
LBSL4-18-7-1310	1250–1380 nm	4 mm	18 mm	$1,642.00	8 weeks	Add Cart
LBSL4-36-13-1310	1250–1380 nm	4 mm	36 mm	$1,018.83	today	Add Cart
LBSL4-54-20-1310	1250–1380 nm	4 mm	54 mm	$1,190.97	8 weeks	Add Cart
LBSL8-110-41-1310	1250–1380 nm	8 mm	110 mm	$1,190.97	8 weeks	Add Cart