This specimen came from Boron, California. It is called TV Rock because, if you place it over an image, the image appears to be at the top of the rock, as on a TV screen. The fibers of Ulexite act as optical fibers, transmitting light along their lengths by internal reflection. Much more detailed information can be found on the web.
It is called TV Selenite because, if you place it over an image, the image appears to be at the top of the rock, as on a TV screen. The fibres of the selenite act as optical fibres, transmitting light along their lengths by internal reflection. Lots of detailed information can be found on the web.
The specimen is birefringent. Place the specimen on some writing and note how the two images move as you rotate the specimen while you are looking through it.
Produced by Pollock’s Toyshop, in support of the Wilton’s restoration fund, the diorama card is an illustrated peepshow of Wilton’s in the 1850s. With an illustrated backplate on which to write a message, the card folds down flat and comes with an envelope. Bought from Pollock’s toyshop in Covent Garden in 2016.
Made in England. As you tilt the box, the images of the red balls move sideways and up and down in a striking way.
This is a striking example of how eye catching pictures could be created using prismatic foil.
Shakespeare smiles and moves his hand as you walk in front of the hologram. Manufactured by Applied Holographics. Made in England.
Made by Eye Think, Inc, USA. This is the brainchild of Rufus Butler Seder, president of Eye Think. When you hang the disc from a thread and spin it, you can see the cat running.
Purchased in the UK in 2014 from Iñaki Beguiristain, who made the hologram.
A lithophane is a moulded 3D image in very thin translucent porcelain that can be seen clearly only when back lit with a bright light. The design in the base of this cup looks like a Japanese Geisha Girl. Apparently the characters on the base can be translated as ‘Special Make Japan’.