Imaging lens reel-out equipment

An imaging lens extending apparatus comprises, in an overlaid configuration:

• a circuit substrate, whereon an imaging sensor device is mounted that is centered on a central vertical axis;
• a pedestal, which has a window that surrounds the axis and that corresponds to the imaging sensor device, that is fixed to the circuit substrate;
• a tubular rotary body, which is annularly formed with a switching lever that is concentric with the axis, that is disposed above the pedestal;
• a macro core, wherein a female thread is provided to its inner circumferential surface;
• a lens holder that has a built-in imaging lens group and that has a male thread at its outer circumference that screws into the female thread;
• a spring;
• and
• a cover, which has an opening at its center;
• wherein:
• the cover is fastened and fixed to the pedestal;
• an annular tubular guide part is protrusively provided on the pedestal so that it is coaxial with the axis;
• the tubular rotary body is rotatably fit to the outer circumference of the tubular guide part;
• and
• the lens holder, which includes the imaging lens group, moves in the axial directions attendant with the rotation of the tubular rotary body around the axis;
• wherein
• an annular groove, wherein a tip part of the tubular guide part fits, is provided to a lower surface of the macro core;
• the annular groove of the macro core slidably fits with the tip part of the tubular guide part;
• a plurality of inclined cam surfaces is provided to the upper surface of the tubular rotary body, and the height of each inclined cam surface in the axial directions gradually changes along the circumferential direction;
• projections, each of which contacts a corresponding inclined cam surface, are provided to the lower surface of the macro core;
• and
• by the rotation of the plurality of inclined cam surfaces attendantly with the rotation of the tubular rotary body around the axis, each projection changes its position of contact with the corresponding inclined cam surface, and the macro core, which comprises the lens holder, moves in the axial direction.