Abstract: A freeform optical surface includes, in part, an off-axis optical surface and a departure optical module. The off-axis optical surface may be an off-axis conic optical surface. The departure optical module may be substantially perpendicular to the off-axis conic optical surface.

Abstract: Various embodiments for eye imaging, screening, diagnosis, and monitoring are provided. Some embodiments comprise systems for retinal imaging capable of capturing multiple high resolution images using multiple quick succession flashes. The images can be combined to provide for a complete image of the retina of a target FOV without corneal reflections. In some embodiments, a system for retinal imaging can utilize an optical design pupil layout that allocates a large area for the path of imaging rays on the eye pupil by using a narrow buffer area. In other embodiments, a system for retinal imaging can comprise a main device, including an imaging and sensing device, and a robotic system, including an eye tracker and/or sensors, wherein the robotic system is capable of automatically aligning the main device and selecting an optimal imaging mode by detecting a pupil size of an eye and is combined with an AI analysis tool.

Abstract: A freeform optical surface includes, in part, an off-axis optical surface and a departure optical module. The off-axis optical surface may be an off-axis conic optical surface. The departure optical module may be substantially perpendicular to the off-axis conic optical surface.

Abstract: An optical design system generates a design state overview of a design of an optical system, the design state overview summarizing a current state and a target state of the design by describing a plurality of specifications for the optical system, the specification descriptions including target ranges for the specifications based on the target state of the design and further including current values for the specifications based on the current state of the design. The optical design system displays the design state overview. The optical design system updates the design state overview in response to the optical design system changing the current design for the optical system.

Abstract: An optical design system generates a design state overview of a design of an optical system, the design state overview summarizing a current state and a target state of the design by describing a plurality of specifications for the optical system, the specification descriptions including target ranges for the specifications based on the target state of the design and further including current values for the specifications based on the current state of the design. The optical design system displays the design state overview. The optical design system updates the design state overview in response to the optical design system changing the current design for the optical system.

Abstract: A stereomicroscope has a left and a right stereo radiation path and an adjusting device for selecting a stereo base. A main lens is arranged between an object to be observed and the adjusting device, which may be designed as an opto-mechanical switching device. The arrangement allows an integrated structure with low light losses.

Abstract: A stereomicroscope has a left and a right stereo radiation path and an adjusting device for selecting a stereo base. A main lens is arranged between an object to be observed and the adjusting device, which may be designed as an opto-mechanical switching device. The arrangement allows an integrated structure with low light losses.

Abstract: The invention concerns a method and device for determining the direction of an object (10) which emits or reflects optical radiation. An optical element (14) which structures the wavefront of the radiation converts the conventional dot-type image (20) into an intensity distribution (14′) with more than one maximum on a locally resolving opto-electronic detector (13). From the intensity distribution (14′) and the structure function of the optical element (14), the direction of the object (10) can be determined with a high degree of accuracy over a wide measurement range. In addition, this gives a design with a shorter optical path length and very few optical components.

Abstract: A stereomicroscope has a left and a right stereo radiation path and an adjusting device for selecting a stereo base. A main lens is arranged between an object to be observed and the adjusting device, which may be designed as an opto-mechanical switching device. The arrangement allows an integrated structure with low light losses.

Abstract: An arrangement for determining the position of a surgical microscope uses signal transmitters and signal receivers. Light emitting diodes that emit coded light signals and light receptors for receiving the coded light signals are arranged in various locations in space. Reflectors having narrow-bond reflection characteristics are arranged on the microscope so that the light reflected can be identified.

Abstract: The invention relates to a method of determining measurement-point position data and a device for measuring the magnification of an optical beam path. In the method described, a laser beam is inserted via an insertion element (32a) into the beam path of a microscope. At the end of this beam path, a beam splitter (4c) splits the laser beam off again and directs it on to a position sensor (45a). The point at which the measurement beam is incident depends on the magnification of the beam path optics (8, 13). The final value of the magnification can thus be simply determined. The value of the magnification is important for the user in order to enable the user to make a definite assessment of the area observed. Also described are various related developments and details of the invention.

Abstract: A stereomicroscope has a left and a right stereo radiation path and adjusting means for selecting a stereo base. The main lens is arranged between an object to be observed and the adjusting means, which are preferably designed as opto-mechanical switching means. This arrangement allows an integrated structure with low light losses to be obtained.

Abstract: The invention is directed to a surgical microscope in which, to determine the distance between the microscope (8, 13) and the object (22), the travel time of a beam of light (57c) emanating from the microscope and reflected by the object is determined. The travel time is determined by phase measurement or by interference matching. In the case of direct phase measurement, modulated light is used. In the case of interference matching, partly coherent light is used. In order to ensure high accuracy over wide measurement range, the two measurement methods are preferably used in combination.