Composite for beam shaping
OwnerRupert Schnell, Edgar Pawlowski +1inventors
InventorsRupert Schnell, Edgar Pawlowski, Wolfram Beier
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Abstract
The present invention relates to beam shaping elements, such as for example lenses, diffractive elements or mirrors, which exist as composites, comprising an inorganic substrate and an organic substrate in the form of a polymer, which can be thermally cured at temperatures between 0 and 180° C. Preferably, the organic polymer is selected from the group consisting of polyurethanes and silicones. According to a preferred embodiment, it is a polyurethane. The beam shaping elements according to the present invention have advantageous properties with respect to precision, rigidity and durability and can further be produced in an easy way by means of an economic method, which method is also subject of the invention.
Claims34
A beam shaping element existing as a composite, comprising at least an inorganic substrate, selected from the group consisting of glass, semiconductor materials, metals, ceramics or crystals, and at least one component having an organic proportion, in the form of a polymer, wherein the polymer is formed of two or more starting components by thermal initiation at temperatures between 0 and 180° C. and wherein the respective layers of organic substrate and inorganic component are directly connected with each other during the formation of the organic substrate.
A method of producing a beam shaping element, comprising the steps of
- placing an inorganic substrate in a mold
- fixing the inorganic substrate
- charging the starting components of the polymer onto the inorganic substrate by casting into the mold and
- thermally initiated chemical reaction of the starting components of the polymer at a temperature in the range of 0 to 180° C.
Dependencies are inferred from the claim text.