The X-E5 is Fujifilm’s tiny powerhouse. It’s part of a line of cameras that has often been described as similar to the X100, ...

Concave lenses are less common than convex lenses in optical engineering, but they still have some useful applications. Some examples of devices that use concave lenses are eyeglasses, peepholes ...

The concave or biconcave lens is thinner in the middle than at the edges. It is used in glasses, googles, optics, photography, camera, laser, telescope, etc. Negative glass converts a parallel beam of ...

A lens array has been developed to reduce the height of the lens and has proven to achieve the same gain as a large single lens antenna with a low antenna profile. However, the amplitude is not ...

We have improved deformable mirror approach to allow good parabolic deformation for efficient thermal lens compensation. Our design uses an annulus to push onto the back surface of a flat mirror ...