LBTEK-Infinity-corrected tube lens

Product Description

Infinity-corrected optical system
Apochromatic design with wavefront aberration better than the diffraction limit across the entire field of view
Compatible with infinity-corrected objectives from major manufacturers

LBTEK Tube Lens with a focal length of 200 mm delivers diffraction-limited performance across the working wavelength and field of view. It is compatible with infinity-corrected objectives from major manufacturers. Widely applicable in high-resolution imaging, biomedical applications, machine vision, and other fields. In system applications, it can be used in dual-tube lens setups for relay imaging, combined with objectives to build various magnification imaging systems, serve as a replacement for existing system tube lenses, or pair with microscopes to produce high-quality images. The telecentric tube lens is also suitable for laser scanning applications.

Diagram

Tube lens

Focal length: 200 mm
Ø22 mm imaging field of view
Compatible with infinity-corrected objectives from major manufacturers

The LBTEK infinite correction tube lens is designed to be used in conjunction with infinity-corrected objectives to construct an infinity-corrected optical system. To minimize losses caused by surface reflections, all lens surfaces in the infinite correction tube lens are coated with broadband anti-reflection coatings. The coating wavelength ranges are: 400-750 nm, 700-1100 nm. The infinite correction tube lens delivers diffraction-limited optical performance within the working wavelength range. During use, the M38×0.5 or SM2 threaded end should face the objective.

Assembly Diagram

Product Model	Focal length	Operating Wavelength	Image plane size	Working distance	Thread specification	Unit Price	Lead Time
ICTL100-A-W	100 mm±1%	450-750 nm	Ø15 mm	63.1 mm^a	SM2 External Thread	$890.83	today	Add Cart
ICTL140-A-W-SP	140 mm±1%	400-700 nm	Ø22 mm	96.1 mm^a	SM2 External Thread	$1,134.78	today	Add Cart
ICTL165-A-W	165 mm±1%	400-700 nm	Ø22 mm	120.6 mm^a	SM2 External Thread	$790.78	today	Add Cart
ICTL180-A-W	180 mm±1%	400-700 nm	Ø22 mm	133.5 mm^a	SM2 External Thread	$790.78	today	Add Cart
ICTL200-UVB-W	200 mm±1%	248-700 nm	Ø24 mm	176.4 mm^a	SM1.5 External Thread & M32x0.5 External Thread	$3,091.86	today	Add Cart
ICTL200-A-W	200 mm±1%	400-750 nm	Ø22 mm	148.6 mm^a	M38×0.5 external thread	$513.94	today	Add Cart
ICTL200-A2-W	200 mm±1%	400-700 nm	Ø22 mm	151.8 mm^a	SM2 External Thread	$513.94	8 weeks	Add Cart
ITL200-B	200 mm±1%	700-1100 nm	Ø22 mm	152.35 mm^a	SM2 external thread	$522.16	8 weeks	Add Cart
ICTL200-A1-W New	200 mm±1%	400-750 nm	Ø22 mm	148.6 mm^a	M38×0.5 external thread	$513.94	today	Add Cart

Telecentric Tube Lens

Telecentric design
Focal length: 200 mm
Ø22 mm and Ø24 mm imaging field of view
Compatible with infinity-corrected objectives from major manufacturers

The LBTEK infinity-corrected telecentric tube lens features a telecentric design and can be paired with laser scanning lenses to form a telecentric system, making it suitable for laser scanning and wide-field imaging applications. It is designed for wavelengths of 350-1100 nm and 400-2000 nm, with broadband anti-reflection coatings for 350-1100 nm and 400-1300 nm respectively. For specific transmission rates, please refer to the transmission curve. The telecentric tube lens has M38 x 0.5 or SM2 external threads on both ends, allowing direct integration into LBTEK's 60 mm coaxial system.

Assembly Diagram

Product Model	Focal length	Design Wavelength	Working distance	Image plane size	Thread specification	Unit Price	Lead Time
TL200-CLS2-T	200 mm±1%	450-1100 nm	180.9 mm^a	Ø25.2 mm	SM2 External Thread	$1,747.40	today	Add Cart
TL200-3P-T	200 mm±1%	800-1800 nm	180.9 mm^a	Ø22 mm	SM2 External Thread	$2,192.81	today	Add Cart
TL200-2P2-T	200 mm±1%	680-1300 nm	180.9 mm^a	Ø22 mm	SM2 External Thread	$2,055.76	today	Add Cart
ITL200-UVNIR	200 mm±1%	350-1100 nm	163.13 mm^a	Ø24 mm	M38 x 0.5 external thread	$1,747.40	today	Add Cart
TTL200MP	200 mm±1%	400-2000 nm	152.9 mm^a	Ø22 mm	SM2 external thread	$1,504.82	Contact	Add Cart
TL300-A-T	300 mm±1%	400-750 nm	94.2 mm^a	Ø22 mm	SM2 External Thread	$1,781.66	today	Add Cart
TL400-A-T	400 mm±1%	400-750 nm	94.2 mm^a	Ø22 mm	SM2 External Thread	$1,781.66	today	Add Cart
TL600-A-T	600 mm±1%	400-750 nm	94.2 mm^a	Ø22 mm	SM2 External Thread	$1,781.66	today	Add Cart

Threaded accessories

Material: 6061-T6 aluminum alloy
Surface treatment: Black anodized
Thread specification: M38, SM2

LBTEK threaded accessories include M38×0.5 internal and external threads, SM2 external threads, which allow integration of ITL200-A or other products with M38×0.5 external threads into existing systems. The black anodized surface helps reduce stray light reflection. The SM38R features M38×0.5 external threads, the SM2-M38B has SM2 external threads and M38×0.5 internal threads, while the SM2-M38BV comes with a male dovetail, SM2 external threads, and M38×0.5 internal threads. LBTEK also offers custom services for adapters with special dimensions and thread specifications. For inquiries, please contact technical support.

ITL200-A threaded connection with SM2-M38B

Product Model	Clear Aperture	Thread specification	Unit Price	Lead Time
SM38R	Ø35 mm	M38×0.5 external thread	$5.21	today	Add Cart
SM2-M38B	Ø37 mm	SM2 external thread and M38×0.5 internal thread	$19.74	today	Add Cart
SM2-M38BV	Ø37 mm	SM2 external thread and M38×0.5 internal thread	$38.37	today	Add Cart

Swallowtail adapter

The dovetail adapter includes dovetail adapters of various male and female dovetail specifications such as D1N.

BTEK Dovetail Adapters include various male and female dovetail specifications such as DIN. The surface is black anodized to reduce stray light reflection. LBTEK continuously introduces new adapters. Please refer to the technical specifications. In addition to standard dovetail adapters, LBTEK also provides custom adapter services for special-sized dovetail specifications. If needed, please contact LBTEK technical support.

Application Example

	Product Model	Material	Surface treatment	File	Unit Price	Compare	Lead Time
	SM2-D1N	6061-T6 Aluminum Alloy	Black anodized		$33.44		today	Add Cart

SM2-threaded lens tube for infinity-corrected tube lenses

For assembling an adjustable C-Mount to SM2 camera sleeve device
SM2 Threaded Infinity-Corrected Tube Lenses Compatible with LBTEK
Position the C-Mount Microscopy Camera at the image plane of the SM2-threaded Tube Lens.
Compatible with SM2 (2.035"-40) thread components

These SM2 lens tubes are machined to the required exact length for positioning Microscopy Cameras with standard C-mount interfaces at the image plane of the Tube Lenses.

Each lens tube has an SM2 （2.035"-40） threaded hole for mounting Ø2 inches（Ø50.8 mm） Optical Components, and includes an SM2R retaining ring.

One end SM2 external thread, the other end SM2 internal thread

Product Model	Dimensional specifications	Unit Price	Lead Time
SM2-S04A New	Thread depth 0.4 inches (10.2mm)	$25.90	today	Add Cart
SM2-S27A New	Thread depth 2.7 inches (68.6mm)	$36.46	today	Add Cart
SM2-S32A New	Thread depth 3.2 inches (81.3mm)	$40.29	today	Add Cart
SM2-S39A New	Thread depth 3.9 inches (99mm)	$46.05	today	Add Cart