Permanently self-luminous sighting element

A permanently self-luminous sighting element for marking important points in bright light, poor lighting conditions and in darkness, the sighting element comprising:

• a cylindrical housing with an axis, a transparent end wall arranged normally thereto as a viewing surface, a rear wall arranged opposite thereto, and a liner, which together form an enclosed, gas-impermeable interior space,
• wherein a cylindrical glass capsule embodied as self-luminous gaseous tritium light source (GTLS) is introduced in the interior space coaxially to the axis, which glass capsule comprises a glass liner surface and a front surface facing the end wall,
• wherein a pigment layer suffused with persistently phosphorescent pigments and having an end surface facing the end wall is arranged or applied between the glass liner surface of the glass capsule and the liner, and
• wherein no layer with persistently phosphorescent pigments is arranged between the front surface and the end wall, so a viewer who looks axially towards the end wall has an unobstructed view through the end wall to the front surface of the glass capsule and the end surface of the pigment layer,
• wherein colours of the self-luminous GTLS and the persistently phosphorescent pigments are similar to each other and belong to the same colour tone in order to reinforce each other in appearance and to form an optical unit.