Abstract: A diaphragm arrangement (100) for generating an oblique illumination in a microscope comprises a carrier element (130), an iris diaphragm element (110) having a variable iris diaphragm opening (111), a further diaphragm element (120) having a diaphragm opening (121) that, when it is in a first position relative to the carrier element (130), covers a portion of the iris diaphragm opening (111) and is mounted rotatably around a first rotation axis (A), such that a rotation of the further diaphragm element (120) around the first rotation axis (A) changes that portion of the iris diaphragm opening (111) which is covered by the further diaphragm element (120), and an actuation element (140) coupled to the further diaphragm element (120) via a coupling device (150) such that a rotation of the further diaphragm element (120) around the first rotation axis (A) is produced by an actuation of the actuation element (140).

Abstract: A diaphragm arrangement (100) for generating an oblique illumination in a microscope comprises a carrier element (130), an iris diaphragm element (110) having a variable iris diaphragm opening (111), a further diaphragm element (120) having a diaphragm opening (121) that, when it is in a first position relative to the carrier element (130), covers a portion of the iris diaphragm opening (111) and is mounted rotatably around a first rotation axis (A), such that a rotation of the further diaphragm element (120) around the first rotation axis (A) changes that portion of the iris diaphragm opening (111) which is covered by the further diaphragm element (120), and an actuation element (140) coupled to the further diaphragm element (120) via a coupling device (150) such that a rotation of the further diaphragm element (120) around the first rotation axis (A) is produced by an actuation of the actuation element (140).

Abstract: The invention concerns a fluorescence (stereo)microscope having a filter carrier that can be loaded with manually exchangeable filter inserts, and having a reliable eye protection system against the energy-rich light radiation in the context of a carrier position without a filter insert.

Abstract: A control unit for controlling functional units of a microscope is preferably constructed in the manner of a computer mouse and comprises a microcontroller; at least one operating element for providing control commands to the microcontroller for actuating or controlling the functional units; and a memory device associated with the microcontroller, wherein the memory device includes a first memory region and a second memory region, the first memory region storing boot loader programming instructions executable to load control programming instructions into the second memory region, the control programming instructions defining a function of the at least one operating element. The invention eliminates the need to open the control unit and remove or reburn the microcontroller, or to make a hardware change using a jumper setting, in order to update the software controlling the control unit.

Abstract: A tilting mirror for optical devices is described, in particular microscopes, which is retained in precision-mounted fashion in a carrier in a working position. For that purpose, the carrier has a three-surface support.

Abstract: The invention concerns a fluorescence (stereo)microscope having a filter carrier that can be loaded with manually exchangeable filter inserts, and having a reliable eye protection system against the energy-rich light radiation in the context of a carrier position without a filter insert.

Abstract: A tilting mirror for optical devices is described, in particular microscopes, which is retained in precision-mounted fashion in a carrier in a working position. For that purpose, the carrier has a three-surface support.

Abstract: A connectible locking mechanism sets defined magnifications in a continuously operating zoom system of a microscope. The mechanism has a drive unit for setting the zoom, a locking disk fixedly connected to and provided axially on a drive shaft of the drive unit and a disk-shaped locking spring arranged fixedly to an instrument of the microscope. The locking disk has defined grooves arranged side by side. Arranged between the locking spring and the locking disk is a ball and a locking slider which is provided with a recess. The ball is positioned in the recess of the locking slider and is movable into and out of engagement with the grooves of the locking disk through a sliding motion of the locking slider.