2 papers
physics.optics2009
Lens design based on instantaneous focal function
Sung Nae Cho
The formula for the lens is derived based on the information of instantaneous focal function. Focal function is an important tool in designing lenses with extended depth of focus (…
physics.optics2008
Symmetric lens with extended depth of focus
Sung Nae Cho
The lens surface profile is derived based on the instantaneous focal length versus the lens radius data. The lens design based on instantaneous focal length versus the lens radius…