Lens system having resilient members to axially position optics

A projection television lens system comprising:

• a light source,
• a focus mount coupled with said light source,
• a tubular optic support structure coupled to said focus mount and having an interior with a longitudinal central axis and a first optic support surface extending around the longitudinal central axis,
• a first optic received by said interior of said tubular optic support structure and having a first outer circumferential edge and a first mounting surface portion adjacent said first circumferential edge, said first mounting surface extending transverse to the longitudinal central axis,
• a plurality of raised surface members on said first optic support surface, and
• at least a first resilient member extending transverse to said longitudinal central axis and contacting said first mounting surface portion of the first optic, said first resilient member applying a biasing force against said first mounting surface portion along the longitudinal central axis to force said first optic against said raised surface members of said first optic support surface.

A projection television lens system comprising:

• a light source,
• a focus mount coupled with said light source,
• a light source,
• a focus mount coupled with said light source,
• a generally cylindrical optic support structure coupled to said focus mount and having an interior with a longitudinal central axis and a first optic support surface extending around the longitudinal central axis, and said optic support structure being movable relative to said focus mount along said longitudinal central axis to provide focus adjustment,
• a first optic received by said interior of said tubular optic support structure and having a first outer circumferential edge and a first mounting surface portion adjacent said first circumferential edge, said first mounting surface extending transverse to the longitudinal central axis,
• a plurality of raised surface members on said first optic support surface, and
• at least four flexible tab members extending transverse to said longitudinal central axis and contacting said first mounting surface portion of the first optic, said flexible tab members being positioned at equidistant spacings relative to each other and together applying a biasing force against said first mounting surface portion along the longitudinal central axis to force said first optic against said raised surface members of said first optic support surface.