Abstract: Disclosed is a reflector arrangement including a mirror system for reflecting incident light. The mirror system includes a V-mirror unit with a V-shaped mirror having two mirror reflection surfaces, and a plane mirror unit arranged at a distance from the V-mirror unit. The V-mirror unit includes a V-mirror adjustment mechanism for adjusting an angle between the two mirror reflection surfaces of the V-shaped mirror. A method for adjusting the reflector arrangement and a method for assembling the reflector arrangement are also disclosed.

Abstract: A process and a device are provided for ascertaining the rotation of a liquid spray arm for a domestic appliance. Lighting means serves as a light transmitter and a photoreceiver serves as a light receiver. The lighting means and the photoreceiver are assigned a light-conducting element. At a first location of the light-conducting element, at least some light emitted from the lighting means is coupled to a path so that the light is guided in the light-conducting element by total reflection. At a second location of the light-conducting element that spaced apart from the first location in the direction of propagation of the light, the light guided in the light-conducting element is coupled out of the path so that the light is received by the photoreceiver. The intensity of the light received by the photoreceiver is evaluated by an evaluation circuit with respect to the rotation of the spray arm.

Abstract: A process and a device are provided-for ascertaining the rotation of a liquid spray arm for a domestic appliance. Lighting means serves as a light transmitter and a photoreceiver serves as a light receiver. The lighting means and the photoreceiver are assigned a light-conducting element. At a first location of the light-conducting element, at least some light emitted from the lighting means is coupled to a path so that the light is guided in the light-conducting element by total reflection. At a second location of the light-conducting element that spaced apart from the first location in the direction of propagation of the light, the light guided in the light-conducting element is coupled out of the path so that the light is received by the photoreceiver. The intensity of the light received by the photoreceiver is evaluated by an evaluation circuit with respect to the rotation of the spray arm.

Abstract: An ophthalmoscope handpiece (10) for viewing the fundus oculi and for delivering a laser beam and a laser targeting beam to the fundus. The handpiece (10) comprises a body (26) defining a viewing aperture (32) therethrough. The handpiece (10) is provided with magnifying means, including a magnifying lens (38) mounted in the viewing aperture (32) for providing a magnifyied view of the fundus. An optical fiber coupling assembly (46) connects the handpiece (10) to an optical fiber (50) which communicates a laser targeting beam and a laser beam to the handpiece (10). The coupling assembly (46) is received in a receptor (58) provided in the body (26) such that the targeting beam and the laser beam can be directed into the viewing aperture (32) of the handpiece (10). Beam deflecting means (48), mounted within the viewing aperture (32), serves to intercept the laser beam and targeting beam and redirect the beams out of the viewing aperture (32) such that the beams can be directed to the fundus oculi.