Jenoptik Optical Systems Gmbh

Jenoptik Laser, Optik, Systeme Gmbh

Micro-hybrid Electronic Gmbh

Elvira Gittler

Wolfgang Brode

Thomas Weyh

Steffen Biermann

Falko Stoerzner

Dieter Fasold

Falko STÖRZNER

A method for production of window elements which can be soldered into a housing in a hermetically tight manner with optical coating and free-form window elements are disclosed. After application of optical coatings, a protective layer is applied to the optical coating, the two layer systems are selectively removed by means of a machining beam of high-energy radiation for the purpose of ablation of a desired optically active free-form surface for window elements with any geometric shape through a localized machining beam in edge regions of the optically active free-form surface such that the protective layer remains on the optical coating as lift-off mask which is lifted off after applying a metallization for a solder layer by an etching process that acts selectively only on the protective layer but not on the optical coating, and the metallization remains only on the peripheral edge regions circumscribing the free-form surfaces.

Method for producing window elements that can be soldered into a housing in a hermetically sealed manner and free-form window elements produced in accordance with said method

In a method for the production of window elements which can be soldered into a housing in a hermetically tight manner and of a window element sealing a housing, the object of the invention is to achieve an improved hermetic sealing between window and housing through increased adherence and homogeneity in the metal coating and to prevent penetration of scattered light and unwanted radiation. Optically transparent, flat substrate material whose size is sufficient for a plurality of window elements is provided on at least one surface with an optical coating from which frame-like portions on a coated surface which enclose optically active surfaces of the window elements are subsequently removed, whereupon a metal coating that is used for producing a solder connection to the housing is applied to the generated portions having no coating, and the window elements are separated from the substrate material. An optical seal between a soldering layer system, which is associated with the metal coating, and the optical coating prevents penetration of unwanted radiation.

Method for the production of window elements which can be soldered into a housing in a hermetically tight manner and of a window element sealing a housing

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Jena, Germany

Elvira Gittler