发明名称 |
APPARATUS LIGHT PEN AND ITS USE |
摘要 |
A light pen for writing on a polarized light sensitive surface is disclosed. Light emitting diodes emit non-polarized light and a polarization block comprising of a truncated cone shaped collimating optical element, a broad band polarization divider, a broadband semi-wave plate, shifting bi-prism and light beam coupler are built to convert the non-polarized light to be converted to polarized uniform intensity light that is focused using a set of projection lens to a writing surface. The said light pen can be used for creating non erasable writing on many types of articles, documents, and records that would provide verification of authenticity and security. |
申请公布号 |
US2015338066(A1) |
申请公布日期 |
2015.11.26 |
申请号 |
US201514715589 |
申请日期 |
2015.05.18 |
申请人 |
King Abdulaziz City for Science and Technology (KACST) |
发明人 |
Al-Saud Turki Saud Mohammed;Altamimi Rashid Mohammed;Agabekov Vladimir Enokovich;Muravsky Alexander Anatolievich;Kazak Nikolai Stanislavovich;Belyi Vladimir Nikolaevich;Khilo Nikolai Anatolievich;Mitskovets Anatoli Ivanovich;Kurilkina Svetlana Nikolaevna;Ryzhevich Anatol Anatolievich |
分类号 |
F21V13/02;F21L4/00;F21V23/04;F21V9/14;F21V5/04 |
主分类号 |
F21V13/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. An apparatus, comprising;
a toggle for selecting a specific light emitting diode to produce a light beam, wherein the specific light emitting diode is at least one of a red, green and blue; a polarization block consisting of a truncated cone shaped collimating optical element, a broad band polarization divider, a broadband semi-wave plate and a light beam coupler; a set of projection lens, wherein the set of projection lens is made of at least one of a two, three, four, five and six lenses; and a power supply block for the apparatus. |
地址 |
Riyadh SA |