Share Email Print
cover

Proceedings Paper

High-resolution scanning laser projection display with diode-pumped solid state lasers
Author(s): Christhard Deter; Juergen Kraenert
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We demonstrate bright pictures in the pixel format of HDTV and XGA with a current power consumption lower than 2.5 kW and a RGB laser output power of 15 W with the wavelengths 446 nm, 532 nm and 629 nm. The laser projection system consists of a scanning unit with a rotating polygon scanner (rotational frequency up to 2 kHz) to write the lines and a galvanometer scanner for the vertical deflection of the lines. The system allows the separation of the RGB-laser with the video modulation part from the free moving scanning unit with an optical fiber. The optical fiber provides the video modulated RGB-laser power in a collinear beam to the scanner. We explain detailed the requirements for RGB--laser beams. The main demands for high resolution and sharp scanned pictures are near diffraction limited laser beams, but at least with an optical beam product of < 0.75 mm mrad. Furthermore we give an outlook for an increase of pixel resolution.

Paper Details

Date Published: 25 April 2000
PDF: 10 pages
Proc. SPIE 3954, Projection Displays 2000: Sixth in a Series, (25 April 2000); doi: 10.1117/12.383370
Show Author Affiliations
Christhard Deter, LDT GmbH & Co. KG (Germany)
Juergen Kraenert, LDT GmbH & Co. KG (Germany)


Published in SPIE Proceedings Vol. 3954:
Projection Displays 2000: Sixth in a Series
Ming Hsien Wu, Editor(s)

© SPIE. Terms of Use
Back to Top