FRESNEL LENS
\fɹˈɛsnə͡l lˈɛnz], \fɹˈɛsnəl lˈɛnz], \f_ɹ_ˈɛ_s_n_əl l_ˈɛ_n_z]\
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lens composed of a number of small lenses arranged to make a lightweight lens of large diameter and short focal length
By Princeton University
Word of the day
hydromorphic
- [Greek] Structurally adapted to an aquatic environment, as organs of water plants.