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Jos. Schneider Optische Werke Kreuznach Gmbh & Co. Kg

Jos. Schneider Optische Werke Gmbh

Ralf Linn

Udo Schauss

Heinz Korpert

A compact camera lens composed of the following five lenses in this sequence proceeding from the object side: a first positive meniscus lens, wherein the concave surface of the first positive meniscus lens faces away from the object side; a second negative lens, wherein the object-side surface of the second negative lens is concave; a third positive lens, wherein the image-side surface of the third positive lens is convex; a fourth biconvex lens; and a fifth negative lens. The fourth biconvex lens and the fifth negative lens are in each case cemented with one another. The object-side surface of the third positive lens and the image-side surface of the fifth negative lens are of aspherical form. The objective is particularly robust, compact, has a large aperture and very good imaging characteristics. It is suitable for example as an objective of an exterior mirror replacement camera in the automotive field.

Camera lens

An anamorphotic attachment for a projection objective has front and rear lens groups which have vertical diameters greater than their horizontal diameters and received respectively in an inner mounting tube and an outer mounting tube, the latter being connectable to the projection objective at its rear end. The inner mounting tube is fully received in the outer mounting tube and has thereon a shifting screw for moving the inner mounting axially within the outer mounting and a clamping screw actuatable to lock the two mounting tubes together, both accessible at the front end of the inner mounting tube within the outer mounting tube.

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Niedermoschel, Germany

Ralf Linn