Patent ID: 8708581
Filing Date: 2014-04-29
Classification: G03B

Abstract:
1. A mirror arrangement for reflex cameras, comprising: a main mirror, which is pivotable in a housing; and a pivotable secondary mirror, wherein the main mirror is partially transmissive in a central region, wherein the secondary mirror is arranged downstream of the partially transmissive region in a direction of light coming from an objective, wherein the secondary mirror is matched to the partially transmissive region in terms of its size, wherein, in an upper position, both mirrors are situated in one plane, wherein, in a lower position, the main mirror is aligned at 45° with respect to the upper position, and the secondary mirror is aligned such that it is tilted with respect to the main mirror, wherein the main mirror is pivotably connected to a steering lever, which is rotatable about a rotary spindle, such that the main mirror is pivoted and lowered during transition into the lower position, wherein the secondary mirror is rotatably mounted to the housing via a pivot arm that is immovably attached to the secondary mirror and arranged pivotably about a rotary spindle that is fixed to the housing, the rotary spindle of the pivot arm being parallel to the rotary spindle of the steering lever, and wherein the mirror arrangement further comprises an actuating lever, which is connected to the main mirror and the pivot arm of the secondary mirror, the actuating lever being configured to provide simultaneous movement of the main mirror and of the secondary mirror from the upper position into the lower position and vice versa.