Manufacturers
Links
L & L Optical Services
Provides a wide range of thin film coatings, specializing in metallic and anti-reflection coatings. Experienced in cleaning and coating glass and metallic substates.
Le Sueur Manufacturing Company
Produces the Astro Pier product line of telescope piers for fork mounted and German equatorial telescopes.
Learning Technologies, Inc.
Numerous science and education products including, but not limited to, the STARLAB Portable Planetarium, Project STAR hands-on science materials, the Sunspotter solar telescope plus a variety of learning curriculums.
Lightholder Optics
http://www.lightholderoptics.com/
Newtonian mirrors made and certified in writing to the most exacting, demanding Millies LaCroix tolerance (1/8 wave at the wavefront), twice as precise as the industry 1/4 wave standard.
Lin Optics Co., Ltd.
Taiwanese manufacturer of small refractor and reflector telescopes, microscopes.
Litebox Telescopes
http://www.litebox-telescopes.com/
Designs and manufactures portable Dobsonian telescope frames in the 12.5 to 18 inch aperture range.
LOMO America, Inc.
Amateur and professional telescopes, microscopes, spotting scopes, night vision devices and 35mm film cameras.
London Opera Glass Company
http://www.operaglasses.co.uk/
Manufactures, installs and services opera glasses within theatres. The service is free to theatres, and allows patrons to rent opera glasses during a performance.
Long Perng
Taiwanese manufacturer of spotting scopes, field scopes, telescopes, and binoculars.
Lumicon International
Products include Easy Guiders, hypered film and hyper kits, diagonals, the Sky Vector NGC, richfield viewers and many other accessories for amateur astronomers.



