Tactile lettering is a relief scripture. That means it is embossed and palpable. The tactile lettering can be read from both sighted and vision impaired people. Also blind citizens which were sighted before can read this lettering with the help of their fingers.
For this purpose the font DIN 32986 was created, which is also used in our company. It is sans serif, in means of it does not have any curlicues, and offers almost equal line widths for letters.
Thanks to the prism shape visually impaired people are able to feel characters, figures and symbols. Sighted people realise an even, tridimensional caption.