Abstract: A power source device for diagnostic instruments is adapted for a connection of different types of illuminating devices and includes an active control unit for controlling an operating state of a power source in dependence on a type of a connected one of the illuminating devices.

Abstract: A headband apparatus for head-worn optical instruments includes a headband (12) and a bow (16) on which the optical instrument is fitted, and which is fitted with both its ends (100) to the middle region of the headband (12) such that it can swivel about a swivel axis (S) between a working position and a rest position. Fastening elements (26, 28) for releasably fastening additional elements (38) are fitted on the headband (12).

Abstract: An ophthalmoscope includes a housing (12) in which there are arranged an observing unit and a light source between which there are/is arranged a diaphragm and/or a filter device that can be set via a swivel lever device (16, 17) mounted outside on the housing (12). The swivel lever device (16, 17) can be locked in respective latch stages by a locking device (41).

Abstract: A power source device for diagnostic instruments is adapted for a connection of different types of illuminating devices and includes an active control unit for controlling an operating state of a power source in dependence on a type of a connected one of the illuminating devices.

Abstract: An illuminating apparatus for handheld or headworn instruments comprises a luminous means (50), a heat sink (42) for dissipating heat produced by the luminous means (50), and a ventilation device (57), fitted on the heat sink (42), for feeding cooling air to the heat sink (42). A damping device (60) for damping the oscillations generated by the ventilation device (57) is provided between the heat sink (42) and the ventilation device (57).

Abstract: A headband apparatus for head-worn optical instruments includes a headband (12) and a bow (16) on which the optical instrument is fitted, and which is fitted with both its ends (100) to the middle region of the headband (12) such that it can swivel about a swivel axis (S) between a working position and a rest position. Fastening elements (26, 28) for releasably fastening additional elements (38) are fitted on the headband (12).

Abstract: An ophthalmoscope includes a housing (12) in which there are arranged an observing unit and a light source between which there are/is arranged a diaphragm and/or a filter device that can be set via a swivel lever device (16, 17) mounted outside on the housing (12). The swivel lever device (16, 17) can be locked in respective latch stages by a locking device (41).

Abstract: A diagnostic instrument, in particular an otoscope (1), including a body with a funnel-shaped housing (2), and a base (6) formed integrally on the housing (2), and lighting arranged in the housing or in the base (6). The lighting has a light-emitting diode (10), and the body accommodates adapter electronics (11) which adapt voltage delivered from outside to a voltage required by the light-emitting diode (10).

Abstract: In a dermatoscope having a number of light-emitting diodes (7), which are arranged around optics (6), for indirect illumination of an examination area, an optical waveguide (1) is arranged in front of each light-emitting diode (7), the light input surface of which optical waveguide (1) faces the associated light-emitting diode (7) and on whose outer wall the light which is emitted from the light-emitting diode (7) is totally reflected toward the examination area. Instead of a number of optical waveguides (1), a single conical prism is preferably provided, whose base faces the light-emitting diodes (7) and whose cone angle is designed such that the light injected into the base surface from the light-emitting diodes (7) is totally reflected on the outer cone surface.

Abstract: A laryngoscope (1) includes a socket (3) that is mountable on a hand grip, a spatula blade (2) that is coupled with the socket (3) and a light guide tube (4) that has proximal and distal end portions, with the proximal end portion of the light guide tube (4) being releasably mounted in a cavity (11) that extends completely through the socket (3) while the distal end portion engages in a snap-in device on the spatula blade (2). The light guide tube (4) has a completely uniform permanent cross section that improves the laryngoscope spatula (1) since the light guide tube (4) can be manufactured and serviced in an uncomplicated manner.

Abstract: A laryngoscope (1) includes a socket (3) that is mountable on a hand grip, a spatula blade (2) that is coupled with the socket (3) and a light guide tube (4) that has proximal and distal end portions, with the proximal end portion of the light guide tube (4) being releasably mounted in a cavity (11) that extends completely through the socket (3) while the distal end portion engages in a snap-in device on the spatula blade (2). The light guide tube (4) has a completely uniform permanent cross section that improves the laryngoscope spatula (1) since the light guide tube (4) can be manufactured and serviced in an uncomplicated manner.

Abstract: A fibre-optic laryngoscope spatula (1) having a light-exiting first end and an opposite second end and comprising a base part (1) and an exchangeable light-guide part (8) having a first spring-loaded coupling member (14). The base part (1) and the light-guide part (8) are designed to fit precisely together in such a way that the light-guide part (1) can be pushed into the base part (1) from the second end as far as an end position and can be pushed out of the base part (1) from the end position in the opposite direction. When in the end position, the light-guide part (8) and the base part (1) are connected to one another by means of a snap connection and have interengaging surface parts which do not allow relative movement between the base part and light-guide part in any other than the push-out direction. Furthermore, when in the end position, at least one snap connection force has to be overcome in order to allow relative movement between the base part (1) and light-guide part (8) in the push-out direction.

Abstract: A bar skiascope that has lens slide for displacing a condenser lens along a direction of a light beam also includes a stop slide that can be displaced up to a predetermined maximum position in a displacement path of the lens slide, wherein the condenser lens is located precisely in a position for producing a substantially parallel beam, when the stop slide is in the maximum position, and a stop slide stop element, belonging to the stop slide, and a lens slide stop element, belonging to the lens slide, come into contact with each other.

Abstract: A binocular indirect ophthalmoscope has illumination optics which have a tilted mirror that can be substantially-linearly displaced, by use of a first control, perpendicular to a beam path of an illumination beam exiting the ophthalmoscope, and that can be independently pivoted, by use of a second control, about an axis perpendicular to the beam path of the illumination beam and perpendicular to a direction of linear displacement, the mirror directing light of the illumination beam onto a retina of a patient. First and second controls for linearly moving and pivoting a tilted mirror are coupled to each other in such a way that the second control can be held at a fixed position relative to a housing of an ophthalmoscope.

Abstract: A handgrip for an electro-optical diagnostic-device set comprises a tubularly-shaped battery housing (10) for receiving variously-shaped energy sources (31, 33, 36, 38) therein to energize a lamp of an instrument head at a second end of the tubularly-shaped battery housing. There is a set of releasable end covers 40 for an opposite, first, end of the tubularly-shaped battery housing, with each of the end covers having a substantially identical cover attaching element (42) as that of the other end covers for mating with an opposite housing attaching element of the housing, but with each end cover being shaped differently from the other end covers, so as to accommodate an energy source different from energy sources accommodated by the other end covers.