Khatod has released two interesting lens families, with very narrow and very rectangular beams. One family is called ‘clean rectangular beam’. “Most lenses for LED applications in current use produce ...

A long time ago, I made a cycle headlamp using a Cree MC-E led and an Iris lens from Ledil. Result – a pretty good beam, but it turned out a bit wide for my purposes, and the beam does have a hole in ...

The critical load causing secondary failure of a deep beam by lateral buckling may be calculated by standard methods for those cases in which the beam behaves elastically under the applied load. When, ...

A direct asymptotic integration of the full three-dimensional problem of elasticity is employed to derive a consistent governing equation for a beam with the rectangular cross section. The governing ...