Incident illumination device for a microscope having a planar light source

摘要

The invention relates to an incident illumination device for a microscope, for viewing a sample (1) in the microscope (10), having a planar light source (100) for incident illumination of the sample (1), wherein the planar light source (100) comprises a panel-shaped light guide having a lower boundary surface (111), an upper boundary surface, and at least one lateral surface, as well as at least one light-emitting means that is arranged so that it irradiates light, via at least one lateral surface serving as a light entry surface, into the light guide in such a way that said light propagates in the light guide due to total reflection; wherein the total reflection is disrupted in defined fashion by an element abutting at the lower boundary surface of the light guide against a contact surface so that an outcoupling of light occurs at the upper boundary surface of the light guide.

主权项

1. An incident illumination device for a microscope, for viewing a sample (1) in the microscope (10), having a planar light source (100; 200; 300) for incident illumination of the sample (1),
wherein the planar light source (100; 200; 300) comprises a panel-shaped light guide (110; 210; 310) having a lower boundary surface (111), an upper boundary surface (112), and at least one lateral surface (113 to 116), as well as at least one light-emitting means (120, 122) that is arranged so that it irradiates light (130), via at least one lateral surface serving as a light entry surface, into the light guide (110; 210; 310) in such a way that said light propagates in the light guide (110; 210; 310) due to total reflection; wherein the total reflection is disrupted in defined fashion by an element (140) abutting at the lower boundary surface (111) of the light guide (110; 210; 310) against a contact surface (A) so that an outcoupling of light occurs at the upper boundary surface (112) of the light guide (110; 210; 310).