Abstract: The present invention relates to a sinter powder (SP) comprising a first polyamide component (PA1) and a second polyamide component (PA2), where the melting point of the second polyamide component (PA2) is higher than the melting point of the first polyamide component (PA1). The present invention further relates to a method of producing a shaped body by sintering the sinter powder (SP) or by an FFF (fused filament fabrication) method, and to a shaped body obtainable by the methods of the invention. The present invention further relates to a method of producing the sinter powder (SP).

Abstract: An image recording method (100) and an image recording device (1) for recording a sequence of single images of a scene (3) are provided, wherein the scene (3) is illuminated using an illumination unit (4), a light intensity generated by the illumination unit (4) is characterized by an illumination variable (47), a setting of the illumination variable (47) is performed as long as a regulating reserve (19) of an optimum regulating range (39) of the exposure parameter (46) is present, and a setting of the illumination variable (47) is performed or repeated until the illumination variable (47) is within an optimum regulating range (30) of the illumination variable (47).

Abstract: An image recording method (100) and an image recording device (1) for recording a sequence of single images of a scene (3) are provided, wherein the scene (3) is illuminated using an illumination unit (4), a light intensity generated by the illumination unit (4) is characterized by an illumination variable (47), a setting of the illumination variable (47) is performed as long as a regulating reserve (19) of an optimum regulating range (39) of the exposure parameter (46) is present, and a setting of the illumination variable (47) is performed or repeated until the illumination variable (47) is within an optimum regulating range (30) of the illumination variable (47).

Abstract: A coupling device (9) for an optical waveguide (8), in particular for an endoscope (2) or a light source (3), having an optical waveguide receptacle (11) aligned with a light-coupling optical unit (10), and having a centering device (12) for aligning an optical waveguide (8) with respect to the optical axis (26). The centering device (12) has at least two transmission elements (25) acted upon by a spring (30), and has centering elements (19), and wherein the spring force is distributed by a transmission element (25) uniformly to all the centering elements (19).

Abstract: A coupling device (9) for an optical waveguide (8), in particular for an endoscope (2) or a light source (3), having an optical waveguide receptacle (11) aligned with a light-coupling optical unit (10), and having a centering device (12) for aligning an optical waveguide (8) with respect to the optical axis (26). The centering device (12) has at least two transmission elements (25) acted upon by a spring (30), and has centering elements (19), and wherein the spring force is distributed by a transmission element (25) uniformly to all the centering elements (19).