Cooke triplet

短语

词形变化

Cooke triplets 复数 Cooke triplets

释义与例句

n.
  1. 1.

    A photographic lens comprising a negative flint glass element in the centre with a crown glass element on each side.

    历史

词源

Named after the company T. Cooke & Sons of York, whose chief engineer Dennis Taylor designed it in 1893.

来源：wiktionary