A spectacle frame comprising: - a first part, - a second part, - a joining part (5, 29, 33, 34) joining the second part to the first part allowing to fold and unfold the second part relative to the first part so that the second part be movable between respective closed position and open position, - at least an electrical wiring arranged through the joining part (5, 29, 33, 34) to allow an electrical connectivity between the first part and the second part, wherein the joining part (5, 29, 33, 34) is elastically deformable with curvature radius values higher than a predefined minimum curvature radius value, wherein the joining part (5, 29, 33, 34) comprises a bridge part, an abutment part and a sliding part forming a first and a second stop devices, intended to ensure that the curvature radius of the joining part stays between predefined maximum and minimum curvature radii when folding and unfolding, the bridge part being integral to the first part and to the second part so as to create a bridge between the first part and the second part, said bridge part being flexible, the abutment part being integral to the first part and being less flexible than the bridge part, the sliding part being integral to the second part and being less flexible than the bridge part, the sliding part being located between the bridge part and the abutment part, the bridge part being located facing the center of curvature of the folding, in order that when the second part is folded, the sliding part bears and slides on the abutment part and creates a strength opposed to the folding. - a first part, - a second part, - a joining part (5, 29, 33, 34) joining the second part to the first part allowing to fold and unfold the second part relative to the first part so that the second part be movable between respective closed position and open position, - at least an electrical wiring arranged through the joining part (5, 29, 33, 34) to allow an electrical connectivity between the first part and the second part, wherein the joining part (5, 29, 33, 34) is elastically deformable with curvature radius values higher than a predefined minimum curvature radius value, wherein the joining part (5, 29, 33, 34) comprises a bridge part, an abutment part and a sliding part forming a first and a second stop devices, intended to ensure that the curvature radius of the joining part stays between predefined maximum and minimum curvature radii when folding and unfolding, the bridge part being integral to the first part and to the second part so as to create a bridge between the first part and the second part, said bridge part being flexible, the abutment part being integral to the first part and being less flexible than the bridge part, the sliding part being integral to the second part and being less flexible than the bridge part, the sliding part being located between the bridge part and the abutment part, the bridge part being located facing the center of curvature of the folding, in order that when the second part is folded, the sliding part bears and slides on the abutment part and creates a strength opposed to the folding. wherein the joining part (5, 29, 33, 34) is elastically deformable with curvature radius values higher than a predefined minimum curvature radius value, wherein the joining part (5, 29, 33, 34) comprises a bridge part, an abutment part and a sliding part forming a first and a second stop devices, intended to ensure that the curvature radius of the joining part stays between predefined maximum and minimum curvature radii when folding and unfolding, the bridge part being integral to the first part and to the second part so as to create a bridge between the first part and the second part, said bridge part being flexible, the abutment part being integral to the first part and being less flexible than the bridge part, the sliding part being integral to the second part and being less flexible than the bridge part, the sliding part being located between the bridge part and the abutment part, the bridge part being located facing the center of curvature of the folding, in order that when the second part is folded, the sliding part bears and slides on the abutment part and creates a strength opposed to the folding.