Device for adjusting the magnification of a flexible mirror and a method of making the same

A method for assembling a device for adjusting the magnification of a flexible mirror, the device comprising a flexible mirror having a reflective obverse surface, a rear surface located generally opposite said reflective surface, and a periphery surrounding each of said reflective surface and said rear surface;

• a housing having a retainer means for retaining said mirror, a base member supported on said housing, said base member having an aperture therethrough including a plurality of guide members located about the periphery of said aperture, each of said guide members having a surface angled with respect to a major plane of said base member;
• a retention member connected to said rear surface of said mirror and projecting generally away from said rear surface;
• and an adjustment member having an aperture for receiving and securing said retention member and permitting said adjustment member to rotate freely about said retention member, said adjustment member further comprising a plurality of retainer members, the method comprising the steps of:
• inserting said plurality of retainer members of said adjustment member into said aperture of said base member;
• and
• inserting said retention member into said aperture of said adjustment member, such that said adjustment member is retained on said base member and may be rotated to displace said retainer members along said angled surfaces from a first position with respect to said guide members in which said flexible mirror is generally flat to a second position in which said flexible mirror has a generally concave shape.