Competence
21Pages

Technology. Expertise. Innovation.

Hellma. HeUma is the world’s leading manufacturer of cells and optical components for modern analysis.

Welcome to the world of Hellma 6 Technological know-how. Navigator ded at TrayCell: Awar 2008 is Innovationspre erg b Baden Württem Hellma. Expertise with that personal touch 12 This brochure provides examples that give you an insight into what makes Hellma’s solutions so special: unique technology, expertise and innovation that is reflected in every single Hellma product. Hellma. A leader in technology and quality Technological know-how. For every requirement Technological know-how. Your idea. Our solution Cells. Trust in the original Where precision becomes an art. Explained with examples...

Hellma. Time for the highest precision Pioneering partnerships. Manufacturing high-precision products demands in-depth understanding of our customers’ requirements. For this reason, we work closely with research institutes, universities and scientific institutes at every stage of the product development process. The products and processes resulting from these partnerships often set new standards in the industry, many of which still apply today. Hellma not only produces standard cells and cells for specific analysis devices; it is also in demand for customised high end solutions in the field...

In Hellma's Technology department, Technology technicians and engineers are currently working on the optical glass components of tomorrow. In close collaboration with universities and research institutes such as the Fraunhofer Gesellschaft, fabrication processes, new technologies and materials are analysed and continually refined. The results of this work lead to innovative concepts for optimised product quality and manufacturing efficiency. And from new ideas new products are born, which reaffirm Hellma's position as the number one. In order to guarantee consistent high quality...

-Hgllma" Precision in Spectro-Optics.Worldwide. Hellma. Expertise with that personal touch People who not only understand their craft, but understand how to constantly develop it are the basis of Hellma's success. With the special expertise of its highly-qualified employees, Hellma makes complex cells and fibre-optic systems using elaborate manufacturing processes tailored to suit the needs of clients. In demand worldwide: custom made products from Hellma. The manufacturing of high-precision optical components demands up to 500 production steps. A fact that Hellma employees face with the...

Technological know-how. Navigator Forming processes Surface processing Micro and precision technology Measuring processes for quality assurance Micro sandblasting Laser ablation Fire polishing Technical glasses flatness measurements Thermal bonding cleaning process Optical coatings AR/HR Quartz glass Heat forming hydrophilic coatings Fluidic structures Orbital welding Powder coating metals and special alloys stability test conductive coatings Precision structures Leak testing

Technological know-how. For every requirement Perhaps it is not immediately visible when looking at cells: every one is a highly-precise, optical component. Their manufacture requires a great amount of experience and skill. Below, several key technologies are described that are used in the manufacture of every single cell. From a rough block of glass to high optical precision The raw material is delivered mainly in the form of glass blocks or sheets. These are then cut to workable sizes using cutting processes. Then special cutting and lapping procedures bring the parts to the exact size....

Ultrasonic lapping The most delicate glass structures can be created using techniques from the microchip and semiconductor industries - photolithography and etching. These etching processes are used for the most minute channels or volumes. This manufacturing expertise is supplemented by a further precision process: ultrasonic lapping. With this, it is possible to insert almost any shape or channel into a workpiece. A vibrating head passes the ultrasonic frequency on to a specially shaped tool. Very fine lapping abrasives then transmit the shape of this "vibrating tool" into the workpiece....

Technological know-how. For every requirement Wringing At this stage the individual components of a cell (e.g. frame and window) are put together. This is not done with adhesive, but simply using the molecular attraction between the two assembled surfaces. This type of assembling is known as wringing. As a prerequisite, the surfaces must be free from dust, grease and other impurities. This precision-cleaning is carried out on an ultra-modern, computer-controlled cleaning facility. Directly after the cleaning, the parts are wrung together under cleanroom conditions. Thermal bonding The...

Technological know-how. For every requirement Reducing reflection Increasing reflection If light passes through a cell then part of this For some applications (e.g. fluorescence is reflected by the exterior surface. Transmission measurements) cells with reflective windows is reduced due to these reflected light rays by a are used. The right-hand window opposite the total of approx. 8 %. By vacuum depositing special incoming light and the left window, at right thin layers onto the exterior surface, these angles to the right-hand window, are coated unwanted rays of light are reduced,...

Technological know-how. Your idea. Our solution Solutions from Hellma are used for all applications in the most diverse sectors. Maybe even for your individual needs? Come and discuss your requirements with us and benefit from our technological expertise in the manufacturing and development of high-precision optical components.

After decades of experience in glass treatment Hellma produces cells of unrivalled quality. These are used in absorption measurements, fluorescence measurements, and even special uses such as cytometer, diffused light, and reflection measurements and measurements in ultra-high vacuums, guaranteeing precise and easily reproduceable results. With over 1,500 types there is one to suit almost every application. Furthermore, Hellma works in close partnership with its customers to produce customized solutions.