Support Assembly and Assembly Method Thereof, and Light Source Device

A method for assembling a support assembly, comprising:

• providing a support member, wherein the support member comprises a bottom surface and a mounting surface, the mounting surface is arranged obliquely relative to the bottom surface, the support member is provided with a mounting hole, and the mounting hole at least penetrates through the mounting surface;
• placing a light guiding element on the mounting surface of the support member to cover the mounting hole;
• evacuating the mounting hole to pre-position the light guiding element on the support member;
• fixing the light guiding element and the support member by applying an adhesive;
• and
• stopping the evacuating.

A light source device, comprising:

• an excitation light source configured to emit excitation light;
• a wavelength conversion device configured to convert at least part of the excitation light into converted light;
• and
• a support assembly, wherein the support assembly comprises
• a support member comprising a first bottom surface and a mounting surface, wherein the mounting surface is arranged obliquely relative to the first bottom surface, the support member is provided with a mounting hole, and the mounting hole at least comprises a through hole portion through the mounting surface;
• and
• a light guiding element comprising a second bottom surface, wherein the second bottom surface is provided on the mounting surface and has a coverage over the mounting hole, and wherein the second bottom surface is configured to cover the mounting hole in a state where an air pressure inside the mounting hole is less than an air pressure outside the mounting hole, and the light guiding element is configured to change a traveling direction of a light beam incident on the light guiding element;
• and
• wherein the support assembly is arranged on an optical path of the excitation light, and the light guiding element is configured to change a traveling direction of the excitation light to point to the wavelength conversion device.