Optical magnifying system: 10 x loupe

An optical magnifying system comprising:

• a primary lens (12'), said primary lens (12') being a negative biconcave lens disposed a predetermined working distance from an object being viewed and defining an optical axis (24');
• a secondary lens (14'), said secondary lens (14') being a positive biconvex lens disposed adjacent said primary lens (12') and centered with respect to said optical axis (24');
• a tertiary lens (16'), said tertiary lens (16') being a positive biconvex lens disposed adjacent said secondary lens (14') such that said secondary lens (14') is disposed between said tertiary lens (16') and said primary lens (12') and centered with respect to said optical axis (24');
• a quaternary lens (18'), said quaternary lens (18') being a positive biconvex lens disposed adjacent said tertiary lens (16') such that said tertiary lens (16') is disposed between said quaternary lens (18') and said secondary lens (14') and centered with respect to said optical axis (24');
• a quinary lens (20'), said quinary lens (20') being a positive convex-concave lens disposed adjacent said quaternary lens (18') such that said quaternary lens (18') is disposed between said quinary lens (20') and said tertiary lens (16') and centered with respect to said optical axis (24');
• and
• a sextiary lens (22'), said sextiary lens (22') being a negative biconcave lens disposed adjacent said quinary lens (20') such that said quinary lens (20') is disposed between said sextiary lens (22') and said quaternary lens (18') and centered with respect to said optical axis (24'), said primary (10'), secondary (14'), tertiary (16'), quaternary (18'), quinary (20') and sextiary (22') lenses having surfaces shaped to focus upon said object such that an image is formed at infinity at 10 power magnification.