Difference between revisions of "Drum Lens"

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A fixed lens consisting of dioptric elements only. (Fig. 16b)
 
A fixed lens consisting of dioptric elements only. (Fig. 16b)
  
[[Image:Ch2_Fig16b.jpg|400px]]
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Latest revision as of 11:01, 1 March 2009

2-2-100


(Dioptric) Drum Lens

A fixed lens consisting of dioptric elements only. (Fig. 16b)

Ch2 Fig16b.jpg




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM