Refraction is the change in direction of light when it passes from one medium to another. The working of a lens is based on the refraction of light when they pass through it. Lens is a transparent ...

Draw a ray from the object to the lens that is parallel to the principal axis. Once through the lens, the ray should pass through the principal focus. Draw a ray which passes from the object through ...

Abstract: New super-contact patterning technique is applied to the concave lens mold. For minimizing the light diffraction, the photoresist is coated on the mask. The peeled resist film with the ...

A plano concave lens is an optical lens with one concave surface and one flat surface. It has a negative focal length, and can be used for light projection, beam expansion, or to increase focal length ...

Abstract: Because they can be easy to deposit on the non-planar structures by sputtering technology, ScAlN films are attractive for fabricating focus type transducers ...