COMPANY
Highest quality awareness for welding monitoring from the very beginning
Lessmüller Lasertechnik GmbH was founded in 1990 as a technology company. Under the leadership of company founder Eckhard Lessmüller and Managing Director Christian Truckenbrodt, the company has gradually developed into the market leader for quality monitoring systems in laser welding processes and laser welding optics. By using photodiodes, camera systems with controlled extraneous light and optical coherence tomography, we can offer our customers the appropriate solution for their tasks and thus contribute to the precise quality assurance of laser welding processes and laser welding monitoring.
Many years of experience in the field of process monitoring have a great influence on the development of our fully automatic quality assurance systems.
Lessmüller systems are used across all continents by well-known manufacturers such as BMW, Daimler and General Motors.
… with professionalism and passion
An experienced team of engineers, application technicians, and hardware and software developers, soon to number 60 at its core, works meticulously to drive innovation and continuously develop existing products in line with our customers’ needs.
Our highly qualified employees guarantee solid delivery reliability while maintaining high quality standards: every Lessmüller system is checked and tested several times from development to delivery. Our service staff ensure the smooth integration of system solutions into the latest or already existing plant technology and guarantee safe and error-free commissioning on site.
Lessmüller Lasertechnik conducts research in the field of automated process welding monitoring for various welding processes and has successfully participated in several national as well as international research projects in recent years.
You too can benefit from this knowledge for your projects!
Bright spots with tradition
Lessmüller Lasertechnik GmbH was founded in 1990 for the industrial implementation of a patent for the active stabilization and optimization of laser resonators. The development was successfully completed in a large international research and development project.
Subsequently, various projects for laser material processing, metrology and laser medicine were realized.
Since 2000 Lessmüller Lasertechnik is engaged in process welding monitoring of laser welding optics applications of micro and macro processing.
With the idea and development of a two-dimensional, illuminated observation and automatic monitoring of welding monitoring processes, the continued strong growth of the company begins.
Gründung Lessmüller Lasertechnik GmbH
Teilnahme an BRITE/EURAM EU-Projekt Long-Beam-Path mit 6kW Laser
LLT trägt mit wesentlichen Systemkomponenten zum erfolgreichen Abschluss des Gesamtprojekts bei
Bau einer vollautomatischen Platten-Auflegemaschine für Keramik-Doppelritzer
Entwicklung einer hochpräzisen Messmaschine für Laser-Scanner
Entwicklung eines Kunstaugen-Prototyps für die Kalibrierung von Augenbehandlungen mit dem EXIMER-Laser
Beginn der Entwicklung eines Seriengeräts für die Prozessüberwachung von Schweißapplikationen mit gepulsten Lasern (WELDCHECK-p2)
WELDCHECK-CW zur Überwachung von CW-Schweißapplikationen, Powertrain
Einsteinsommer, Teilnahme im weltweiten Pirelli Wettbewerb zur Erklärung der Relativitätstheorie in 5 Minuten
ca. 100 WELDCHECKs auf mehreren Kontinenten im Einsatz
Beginn der Entwicklung eines Serienprodukts (WELDEYE): beleuchtete Videoaufzeichnungen und automatische Bildverarbeitung für die Prozess- und Nahtkontrolle von Aluminium-Kehlnahtschweißungen in der Großserienfertigung
6 WELDEYE Systeme im Serieneinsatz
Start der Entwicklung eines Systems (FILLET SCAN) zur hochgenauen Positionsregelung von Lasern beim Kehlnahtschweißen mit einem Scanner
FILLET SCAN erstmals im Serieneinsatz beim Schweißen von KFZ-Türen, 200 WELDEYE Systeme auf drei Kontinenten im Einsatz
Vorstellung LSO und OCT, 400 WELDEYE Systeme im Feld
Vorstellung des aktualisierten WELDCHECKs 4.0 beim Laser WOP in München; 500 WELDEYE Systeme im Feld
Erste Installation des OCT Systems im Zwei-Schicht-Betrieb
Vorstellung OCT in Kombination mit TRUMPF PFO und FANUC Remote-Optik beim Laser WOP in München
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NEWS
News and Events
THE BATTERY SHOW EUROPE 2026, Stuttgart
Presentation at ALAW 2026, USA (18 June)
PRESS RELEASE + DEMO VIDEO
Automotive Circle in Bad Nauheim
iQLASE GmbH (Visiting address)
Gollierstraße 12
D-80339 München
Tel.: +49 (0)89 – 360 90 48 – 0
Fax: +49 (0)89 – 360 90 48 -29
Email: info[Ω]lessmueller.de
Web: www.lessmueller.de
Location: Google Maps
(Representation for OCT only)
OPTOPRIM Italia s.r.l.
Via Carlo Rota, 37
20900 Monza
MB – Italy
Phone.: (+39) 039 834977
Fax: (+39) 039 2845269
E-Mail: info[Ω]optoprim.it
Web: www.optoprim.it
Li10 LLC
Jonathan Clayton
55-B Concourse Way
Greer 29650
South Carolina, USA
Phone: +1 864-414-4340
Mail: jmclayton[Ω]li10laser.com
Web: www.li10laser.com
INTECH Co.,Ltd
Yukihiro Okumura
2-39-17-101, Kamiogi,
Suginami-ku Tokyo,
167-0043, Japan
Phone: +81 3-3301-9671
Fax: +81 3-3301-9672
Mail: sales[Ω]intech-jp.com
Web: www.intech-jp.com
AXBIS CO.,LTD.
57, Techno-1ro,
Yuseong-gu, Daejeon,
South Korea (34014)
Phone: +82 42-862-2080
Fax: +82 42-862-2088
Mail: support[Ω]axbis.ai
Web: www.axbis.ai
Lessmueller Laser Technology (Shanghai) Ltd.
Leo Wu
102, No. 8 Building
No. 6066, Songze Avenue
Qingpu District, Shanghai, China
Phone: +86 138-1610-9785
Mail: info[Ω]lessmueller.cn
Web: www.lessmueller.cn
WHERE YOU FIND US
