One of the oldest problems in optics has been solved. Rafael Gonzalez from Mexico's Tecnologico de Monterrey has come up with an almost comically dense equation that can be used to almost completely ...

Light travels at different speeds based on the medium it passes through. For example, in a vacuum, it travels at 3.0 × 10^8 m/s in a straight line. But when directed towards glass, air, diamond, water ...

Please provide your email address to receive an email when new articles are posted on . After sphere and cylinder, the most important determinant of visual acuity is spherical aberration. Higher-order ...

Please provide your email address to receive an email when new articles are posted on . Optical strategies to increase depth of focus include diffractive, pinhole and aspheric defocus optics. There ...

Figure 1 (a) Structure of the mesoscopic objective, (b) Aberration distribution of the mesoscopic objective, (c) Wide-field imaging system built with the mesoscopic objective, (d) Laser point-scanning ...