Method and device for assembling optical components or an optical component and a substrate

Process for the assembly of a first (36, 42) and a second (38, 44) optical components comprising:

• a first stage of depositing a thin glass layer (40) on at least one of the two surfaces (37, 39, 43, 45) to be contacted,
• a second stage of contacting the two surfaces,
• a third stage of heating the glass making it possible to produce a weld between the optical components.

Process according to one of the preceding claims, the glass (34, 40, 46) having a glass transition point between 400 and 500° C.

Process according to one of the preceding claims, also involving a thin layer preheating stage.

Assembly of an optical component (30) and a substrate (32) comprising:

• the optical component,
• the substrate,
• a thin glass layer (34) located at the interface between the optical component and the substrate.

Assembly of a first (36, 42) and a second (38, 44) optical components, comprising the first and second optical components, as well as a thin glass layer (10, 46) at the interface between the optical components.

Endoscope incorporating a multicore fibre (12), a lens (20) connected to said multicore fibre, means (8, 10) for illuminating an area to be observed, the connection between the lens (20) and the fibre (8) being constituted by a material withstanding the sterilization temperature, pressure and humid heat of the autoclave.