Light source comprising a light emitter arranged inside a translucent outer envelope

A light source comprising

• a light emitter arranged inside a translucent outer envelope,
• the translucent outer envelope being connected to a base,
• and further comprising
• a symmetry axis,
• an imaginary base-plane being defined substantially perpendicular to the symmetry axis and intersecting with a connection point being part of the translucent outer envelope,
• the connection point being a light transmitting part of the translucent outer envelope at an interface between the translucent outer envelope and the base at a furthest distance from a center (M) of the translucent outer envelope,
• the light emitter comprising
• a light emitting device and
• a translucent inner envelope at least partially surrounding the light emitter, wherein
• the light emitter arranged on a substantially flat circuit board arranged substantially parallel to the imaginary base-plane,
• the translucent inner envelope comprising
• a diffuser for diffusing at least a part of the light emitted by the light emitting device,
• a diameter of the translucent inner envelope being smaller than a diameter of the translucent outer envelope,
• the light emitter being arranged inside the translucent outer envelope at a distance from the imaginary base-plane away from the base,
• the light emitter is arranged on a connection element for connecting the light emitter to the base and for defining the distance between the light emitter and the imaginary base-plane,
• wherein the distance between the light emitter and the imaginary base-plane is chosen to generate an emission distribution in a distribution plane of at least 220 degrees full width half maximum, the distribution plane being an imaginary plane intersecting with the symmetry axis,
• the connection element is a cone-shaped connection element widening from the light emitter towards the base for preventing light emitted by the light emitter toward the connection point to be obstructed by the connection element,
• wherein the connection element is thermally connected to the light emitting device for extracting heat away from the light emitting device, and
• wherein the base further comprises a heat transfer fins being thermally connected to the connection element,
• the inner envelope and/or the outer envelope further include an at least partially reflective layer, the partially reflective layer positioned along an area of the symmetry axis to reflect at least a part of the light emitted by the light emitter towards the base and thereby increase the spatial emissions of the light source.