Objective Lens Selection Guide
Objectives
UV Microscopy Objectives Visible Microscopy Objectives Reflective Microscopy Objectives 532 nm and 1064 nm Objectives Physiology Objectives
Scan Lenses and Tube Lenses
Visible Scan Lenses NIR Scan Lenses NIR Scan and Tube Lens Combination Infinity-Corrected Tube Lens

Features

Designed for High-Power Industrial Nd:YAG Lasers
Magnifications: 5X, 10X, or 20X
Design Wavelengths: 532 nm or 1064 nm

Specifications

Fused Silica Lenses
Better than 96 to 98% Transmission within
Design Spectral Region
Damage Threshold of 500 MW/cm² for
20 ns Pulses @ 20 Hz (532 or 1064 nm)

The High-Power Nd:YAG MicroSpot Focusing Objectives are designed to transmit the high-power, 1064 nm or 532 nm frequency doubled radiation emitted by industrial Nd:YAG lasers and focus it to a diffraction-limited spot. The transmission window of the objective extends from 250 nm to 1.6 μm, and the objective is capable of producing a nearly diffractionlimited spot throughout the visible and near infrared spectral range.

High Power MicroSpot Focusing Objectives

Item #	λ_c	Mag.	WD	EFL	NA	EA
LMH-5X-532	532 nm	5X	35 mm	40 mm	0.13	10 mm
LMH-10X-532		10X	15 mm	20 mm	0.25	10 mm
LMH-20X-532		20X	6 mm	10 mm	0.40	8 mm
LMH-5X-1064	1064 nm	5X	35 mm	40 mm	0.13	10 mm
LMH-10X-1064		10X	15 mm	20 mm	0.25	10 mm
LMH-20X-1064		20X	6 mm	10 mm	0.40	8 mm

λ_c = Center Wavelength, Mag. = Magnification, WD = Working Distance

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Posted Comments:

Poster: tcohen

Posted Date: 2012-08-23 16:25:00.0

Response from Tim at Thorlabs: Thank you for contacting us. I’ve emailed you to go over this objective and supply some representative data.

Poster: song31037

Posted Date: 2012-08-23 15:19:04.0

Can I receive the wavelength range information of LMH-20X-1064?

Poster: tcohen

Posted Date: 2012-02-29 15:56:00.0

Response from Tim at Thorlabs: Thank you for your feedback on the LMH-10X-532. I am looking into the materials we use for this objective and will post an update soon.

Poster: g.laliberte

Posted Date: 2012-02-29 10:13:58.0

I'm intersted in a microscope objective that would be made of non magnetic material. Do you have any data about the housing material of that lens? THanks

Poster: jjurado

Posted Date: 2011-07-08 08:58:00.0

Response from Javier at Thorlabs to last poster: Thank you very much for contacting us. For this objective, the absorption in the glass itself is almost negligible, and if we assume 3.5% loss at each surface we would end up with a total transmission in the neighborhood of 80%. However, keep in mind that the chromatic shift of roughly 0.2 mm will slightly affect the performance of this objective. Also, we do not currently have an objective specifically designed for operation at 980 and 1550 nm. Please contact us at techsupport@thorlabs.com if you would like to discuss your application a bit further.

Poster:

Posted Date: 2011-07-07 14:17:40.0

I am working with this objective (LMH-10X-1064), but I have beam at 1550nm. So I want to know the transmission spectrum of this objective especialy for 1550nm). Is there any particular objective design to work at 980nm and 1550nm?

Poster: apalmentieri

Posted Date: 2009-12-31 17:12:33.0

A response from Adam at Thorlabs to Ilday: There was a server glitch and we are working to bring this page online. Please note that we do have stock on most of these objectives and they can be ordered direct through our sales department, sales@thorlabs.com or 973-300-3000, while these parts are not on the website. I will email you with more information.

Poster: ilday

Posted Date: 2009-12-31 17:01:39.0

I wanted to purchase this product, which was available until yesterday, however it has disappeared from the webpage. Is that a server glitch or did you discontinue the product?

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High Power MicroSpot Focusing Objectives

Features

Specifications

High Power MicroSpot Focusing Objectives