FROM THE SEA FLOOR TO THE STARS

CUSTOMIZED TECHNOLOGY

Sensors for sea & fresh water

MARINE TECHNOLOGIES

Based on our solid technical basis, we not only manufacture our proven probes, but also develop new products for use on ships or under water.

MORE
Precision in optics & mechanics

INSPECTION & MEASUREMENT TECHNIQUE

Based on proven stereomicroscopes and other optical systems, we develop and manufacture optical control and testing devices to ensure a high quality standard in goods receipt, production and goods issue.

MORE
Astro- & Automation Technology

INDUSTRIAL SERVICES

We are an engineering service provider, but also a service provider for assembly and contract manufacturing of samples, models and small series of optical and precision mechanical components and products.

MORE

OUR ADVANTAGES

30 years of Experience

-4H-JENA engineering GmbH has 30 years of experience in the development and implementation of complex engineering tasks by tailor-made measurement technologies in various areas. 

Flexibility and Individualising

With our trained and motivated employees, we are able to react quickly and flexibly to the individual needs and requirements of our customers. 

Speed and Reliability

Our daily activities are, of course, also based on speed in the implementation of projects with and for our customers. The possibility to still be a contact person after completion of a project is also selfevident to us.

Certified Quality Management

Our understanding of quality is reflected in the ISO 9001 certificate, which was awarded to us for the first time in 1997. Of course, we also pass on our quality requirements to our partners and suppliers in order to always offer our customers the best:

  • high consultancy competence
  • Fulfillment of all customer demands and requirements
  • Execution of all services in the highest quality of work
  • Keep the warranty issues and rework as low as possible

PRESTIGE PROJECTS

Ferrari Wind Tunnel
The large refractor, inaugurated in the presence of the Emperor in 1899, is still the fourth-largest lens telescope in the world. The telescope is a double refractor with two fixed telescopes on a parallactic mount. The larger tube has an 80 cm lens and a focal length of 12.2 meters.
Leibniz Institute for Astrophysics Potsdam (AIP)
Complete restoration of the Zeiss double refractor
In the year 2003 an autonomous monitoring station in direct vicinity to Spiekeroog Island has been put into operation. Since then meteorological and oceanographically parameters are measured and sent to the database of the ICBM continuously.
Monitoring station in the Wadden Sea (Southern North Sea, Germany)
2008 - 2014, the Steinheil Refractor, Goerz Reflector, 300mm Zeiss Refractor, Coelostat, West and East-dome were restored and modernized. Our work included the areas of optics, mechanics, electrics, and control with coupling synchronization, coupling drive and slit gate mechanics.
German Museum Munich
Restoration of astronomical instruments with preservation of historical substance
The FerryBox at the northernmost installation is operated at Spitsbergen (AWIPEV station) since 2012 by the AWI Helgoland. This system continuously sends oceanographical data from there to the AWI database in Germany.
FerryBox in the Arctic
Motorized positioning system for the semi-automatic inspection of large-area flat components, e.g. solar panels, LCD & plasma panels, and entire printed circuit boards with customer-specific optics, axis lengths and a customizable user interface.
SectorInspector
Developed and produced in cooperation with OPTO GmbH Munich
Sensitive measurements are interfered by air bubbles in the measured medium. To remove only these bubbles but not dissolved gases, we designed a debubbler to facilitate undisturbed measurements. The debubbler is available in different sizes and materials (PVC, stainless steel) corresponding to the field of application.
Debubbler
Project surface defect detection with Fraunhofer IOF.<br /> The project supported by the Free State of Thuringia was co-financed by the European Union under the European Regional Development Fund (ERDF).
Hellma Optik GmbH Jena
LED lighting technology
To sample water continuously in terms of dissolved contaminants and/or suspended particulate matter (micro plastics, plankton, etc.) we designed both active and passive samplers. These samplers also can be combined to use contaminant sensitive foils, plankton nets or sieves in one volume controlled sampling system.
Sampler systems
Complete restoration of the 300mm Zeiss refractor</p> <p>The instrument with a focal length of 5m, a magnification of six hundredths and a weight of 20t, is hosted in the observatory which was built in 1907. The observatory is located in the dome of the 50m high tower.
Urania-Sternwarte Zurich AG
Komplettrestaurierung des 300mm Zeiss-Refraktor
In close vicinity to Helgoland Island a COSYNA underwater node is in operation since 2014. This system provides the opportunity to operate even complex sensors and cameras with real-time data transfer. This is enabled by fibre optic network connection and land based power supply.
Underwater node

BUSINESS ACTIVITIES

Marine technologies

In the spring of 1993, the company profile was extended by this acquisition of the water measuring technology division of Norddeutsche Seekabelwerke AG, Nordenham.

Since this time, on the basis of a solid technical basis, we have been working on a continuous development of our product portfolio in addition to the production of our proven probe technology and its accessories.

-4H-JENA engineering GmbH offers service and products from the following areas:

  • FerryBoxes for autonomous measurements of several water parameters (not only on ferry ships …)
  • Underwater nodes – COSYNA standard as interface for measurement systems for underwater observation
  • Mesocosms – design and construction
  • Measuring stations for rivers, lakes and the open sea
  • Probe technologies for water measurement technology
  • LabVIEW-based control and data logging systems
  • Software solutions on Siemens Step7 – basis for special applications in power stations

Optical inspection and measurement technologies

We are dedicated to the development, manufacture and sale of measuring and testing technology in the tradition of fine mechanic-optical instrumentation.

Manufacturing quality – secure – document.

We offer simple, effective and cost-effective solutions to our commercial and industrial partners. The simplest solution is always the best.

Based on proven stereomicroscopes and other optical systems, we develop and manufacture optical control and testing devices to ensure a high quality standard in goods receipt, production and goods issue.

Areas of application are:

  • PCB production and assembly
  • Mechanical small parts production
  • Plastic parts manufacturing
  • Manufacture of metal stencils
  • Movie templates
  • Material samples
  • Customized requirements

In addition, we also offer assembly and services for fine-mechanical optical components.

Industrial services

-4H- JENA engineering GmbH is an engineering service provider, but also a service provider for assembly and manufacturing of samples, models and small series of optical and precision mechanical components and products.

Our portfolio also includes the professional restoration of technical equipment and systems.

  • Development, manufacture, assembly of special machines and devices
  • Development, assembly and adjustment of optical-mechanical assemblies
  • Part and prototype manufacture
  • Assembly of mechanical and optical assemblies
  • PVD coating for objects up to 2m diameter (aluminum mirror coating)
  • Restoration / modernization of technical equipment and installations
  • Repair, restoration, modernization of large astronomical devices (planetarium, observatories,observatory devices)
  • Repair and maintenance of automation technology

 

We are a cooperation partner and a listed supplier of Carl Zeiss AG Germany.