Abstract: A method for producing a hermetically gastight optoelectronic or electro-optical component with great robustness to heat and moisture is described. A housing cap is connected to a carrier in a hermetically gastight manner. Orifices in the housing cap are closed in a hermetically gastight manner by a window element. An electronic component with a housing has a housing cap, a carrier as base plate of the housing, and an interior space enclosed by the housing cap and the carrier. An optoelectronic or electro-optical converter element is arranged in the interior space. The housing cap is closed in a hermetically gastight manner by the carrier through a bonding connection of fused metal. The orifice is connected to the housing cap in a hermetically gastight manner by a window element along an edge metallization of the window element by a circumferential first seam of a fused metallic material.

Abstract: A method for producing a hermetically gastight optoelectronic or electro-optical component with great robustness to heat and moisture is described. A housing cap is connected to a carrier in a hermetically gastight manner. Orifices in the housing cap are closed in a hermetically gastight manner by a window element. An electronic component with a housing has a housing cap, a carrier as base plate of the housing, and an interior space enclosed by the housing cap and the carrier. An optoelectronic or electro-optical converter element is arranged in the interior space. The housing cap is closed in a hermetically gastight manner by the carrier through a bonding connection of fused metal. The orifice is connected to the housing cap in a hermetically gastight manner by a window element along an edge metallization of the window element by a circumferential first seam of a fused metallic material.

Abstract: 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.

Abstract: 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.

Abstract: A method for producing a hermetically gastight optoelectronic or electro-optical component with great robustness to heat and moisture is described. A housing cap is connected to a carrier in a hermetically gastight manner. Orifices in the housing cap are closed in a hermetically gastight manner by a window element. An electronic component with a housing has a housing cap, a carrier as base plate of the housing, and an interior space enclosed by the housing cap and the carrier. An optoelectronic or electro-optical converter element is arranged in the interior space. The housing cap is closed in a hermetically gastight manner by the carrier through a bonding connection of fused metal. The orifice is connected to the housing cap in a hermetically gastight manner by a window element along an edge metallization of the window element by a circumferential first seam of a fused metallic material.

Abstract: A measurement system for measuring the CO2 concentration in an environmental chamber or in an incubator has a radiation source with an optical axis and at least two radiation detectors. The radiation source and the radiation detectors are arranged such with respect to one another that the radiation emitted by the radiation source impinges, after passing through a measurement volume, on the radiation detectors. In each case one channel having a first end and a second end is provided for each radiation detector. The radiation detector is arranged at the first end and the first end of the channel is remote from the radiation source. The channels have a diameter which is smaller than the diameter of the measurement volume, transverse to the optical axis.