Images from Two Mirrors
Yi-Ting Tu
Parabolic Mirror
Paul Falstad
Hyperbolic mirror
Stas Fainer
Retroreflectors
Stas Fainer, Yi-Ting Tu
Periscope
Newtonian Telescope
Matteo Ricci Cipolloni
Penrose unilluminable room
Vincent Fan, Yi-Ting Tu
Two-mirror optical cavity
Plano-concave resonator
Mikhail Kochiev
Maze solution
Specular and Diffuse Reflections
Steve Stonebraker
Chaff countermeasure
Caustics from a Reflective Sphere
Georg Nadorff
The Mirascope
Mario Petitclerc
Reflection and Refraction
Internal Reflection
Prisms
Beam Directors
Apparent Depth
Bent Pencil
Broken Pencil
Chromatic dispersion
Rainbows
Minimum deviation angle
Aplanatic points
Concave Lens
Convex Lens
Lens Images
Transverse and longitudinal magnification
Vanishing point
Monochromatic aberrations
Paul Falstad, Stas Fainer
Chromatic aberration
Hyperbolic lens
Fresnel lens
Zoom Lens
Compound Microscope
Telescope
Keplerian telescope
chuangyu J
Beam expanders
Ray relaying
Rochester cloak
Simple Double-Gauss Lens
Alex
Pair of Axicons making a Rainbow Ring
Peter Becher
GRIN slab
Inferior mirage
Sea mirage
Logarithmic spiral ray path
Luneburg lens
Maxwell fisheye lens
Branched flow
Single Ray demo
Spherical Lens and Mirror
Interrogation room
Camera obscura
The principle of camera imaging
Liu Quanhong
NL Binoculars
Wen Zhou
Einstein Ring refocused to Single Image via Eyepiece
Jordan Anderson
"Black cat becomes white" demo
Victory Science, Yi-Ting Tu
Dichroic RGB Splitter & Combiner
James Garrard
LCD Pixel
Concave Mirror Wearable Display
Rene
Reflecting Monochromator
Solar Eclipses