Wire/ring secondary retention system for optical and other members

A system for retaining an optical member about a vehicle, comprising:

• a mount;
• an optical member having a first end and a second end;
• a primary retention system operable to secure the second end of the optical member to the mount;
• and
• a secondary retention system operable to secure the second end of the optical member to the mount, the secondary retention system comprising:
• a mount retention groove formed in the mount;
• an optical member retention groove formed in the optical member, the mount retention groove in the mount and the optical member retention groove in the optical member forming a retention channel upon the optical member being secured to the mount via the primary retention system;
• a retention wire disposed within the retention channel,
• wherein the secondary retention system activates to cause the retention wire to engage the mount retention groove of the mount and the optical member retention groove of the optical member upon movement of the optical member and at least partial failure of the primary retention system;
• and
• a plurality of mount retention grooves formed in the mount, including the mount retention groove;
• a plurality of corresponding optical member retention grooves formed in the optical member, including the optical member retention groove;
• a plurality of retention wires, including the retention wire,
• wherein the plurality of mount retention grooves in the mount and the plurality of optical member retention grooves in the optical member form a plurality of retention channels upon the optical member being secured to the mount via the primary retention system, the plurality of retention channels including the retention channel;
• and
• wherein the plurality of retention wires are supported within the plurality of retention channels.