Optical apparatus, especially camera, has heating element as discrete ohmic resistance on heating element carrier that is elastic and circular, especially annular

摘要

An optical apparatus, especially a camera, has a device for heating, which has at least one electrical heating element (1). The heating element is an discrete ohmic resistance or the elements are ohmic resistances, located on a heating element carrier (2). The heating element carrier is elastic. The heating element carrier is designed to be circular, especially annular. The device has a number of heating elements and every two neighboring heating elements have the same distance from one another. The device has a number of heating elements and each heating element is located at a given position on the heating element carrier according to the heating power to be formed.