Such a technique would have potential expansion into such fields as gaming, consumer goods, scientific and medical applications. Most recently, the 3D technique using a cellophane sheet was applied to a laparoscope in order to expand the limited viewing capability of this minimum invasive surgical device. A novel 3D laparoscope that can capture three-dimensional images during surgery was reported11. The principle is solely based on the manipulation of polarized light by a cellophane half waveplate rather than computer processing; hence, there is no time delay (real-time operation) and lesions are viewed in true color (important for diagnostics). 3D images are obtained with a single laparoscope. A unique feature of this 3D laparoscope is that it includes a virtual ruler to measure distances without physically touching affected areas. The structure is simple, sturdy, lightweight, and its diameter is no bigger than a standard 10 mm diameter laparoscope.
Fig. 13 System of the 3D laparoscope.
In conclusion, a novel method to convert either a 2D laptop computer screen or a camera phone screen into a 3D display was achieved by using plain ordinary cellophane wrapping paper as a half-waveplate. The case of single camera phone is reported in Ref (4). Applications to a 3D laparoscope are reported in Ref (11).
The author expresses his gratitude to Mrs. Mary Jean Giliberto for converting this paper into a Web-friendly format.
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