Lighting device, lighting device element, and processes for the production thereof

A process for the production of a lighting device element, the lighting device element comprising (i) at least one shaped element selected from the group consisting of a pipe-like shaped element and a rod-like shaped element and (ii) one or more functional elements selected from the group consisting of a light source, electronics for a light source, a heat sink, and optics for a light source, and (iii) a support for the one or more functional elements, wherein the lighting device element comprises at least said optics as functional element, wherein the lighting device element comprises at least two monolithic bodies, each monolithic body comprising at least part of the support and at least part of the optics, with said at least two monolithic bodies providing thereby said support and said optics, the process comprising an arranging stage, the arranging stage comprising:

• arranging in and/or around the shaped element (a1) at least part of the support of said at least two monolithic bodies fastening the support to at least part of the shaped element by pressing with a pressing element a fastening material against and/or into a shaped element wall of the shaped element;
• and coupling one or more optional functional elements other than the optics and the support;
• wherein (b1) the support comprises at least part of the fastening material and/or (b2) a support assist, at least partly configured within or around the shaped element, comprises at least part of the fastening material and the support assist comprises a receptor opening configured to receive at least part of the support, wherein the process further comprises (i) associating the one or more functional elements other than the optics with at least one of said monolithic bodies, and (ii) physically coupling the at least two monolithic bodies, wherein the shaped element comprises a pipe-like shaped element the process further comprising roughening at least part of the shaped wall element wall before pressing with a pressing element the fastening material against and/or into the shaped element wall.