This paper presents an update on the progress to commercialize a new, unique replacement for the powder phosphor currently used in projection cathode ray tubes (CRTs). The new display technology designated Resonant Microcavity Phosphor display (RMP), is now being tested for use in CRTs similar to those currently used in commercial rear projection televisions. This new technology allows resolution, brightness and dynamic range well beyond what is possible with current powder phosphor approaches. Recent test data on operational red, blue and green RMPs faceplates will be presented. Additionally, this paper gives engineers a basic understanding of the characteristics and advantages of the RMP display technology. Some of the key reasons for the need for a new phosphor for the projection CRT are presented. Current and future RMP Display performance is presented. Another future application for RMP technology is as a narrow-band electronically addressable light source, an economical replacement for laser scanning. The technology also has many other applications where a uniform, large area, narrow-band light source or confined beam (non-Lambertian), electron excited light generation is required.
This paper presents an update on the progress to commercialize a new unique replacement for the powder phosphor currently used in projection cathode ray tubes (CRTs). The new technology designated Resonant Microcavity Phosphor (RMP) is now being put into CRTs similar to those currently used in commercial rear projection televisions. This new technology allows resolution, brightness and dynamic range well beyond what is possible with powder phosphor. It is intended that this paper give engineers a basic understanding of the characteristics and advantages of the RMP technology. Some of the key reasons for developing a new phosphor for the projection CRT are presented. Current and future RMP-CRT performance and some other applications for RMP technology are also reviewed.
Two years ago, at the SPIE AeroSense 1999 Conference, Quantum Vision reported on a new technology that we predicted would become the best choice for projection displays. Quantum Vision has now developed this alternate approach, the resonant microcavity phosphor [RMP] for use in CRTs. The Quantum Vision patented technology provides a robust, high technology replacement for the powder phosphor currently used in most CRTs. This emissive component is based upon a rugged thin film phosphor, capable of generating high brightness, extended lifetime, expanded dynamic range and higher resolution images. Current measurements and theoretical predictions indicate that RMP-CRT projection displays can lead to much higher light throughput and electron beam limited resolution, while having a cost profile consistent with high volume CRT products. Other features make it ideal for use with holographic and diffractive optical elements. Data is presented demonstrating the characteristics of red, blue and green RMP-CRT faceplates operated on a demountable CRT test station design by Quantum Vision.
This paper discusses the successful demonstration of a first in thermal imaging with utilized an inexpensive midwavelength IR (MWIR) linear, focal plane assembly (FPA) comprising a long linear array of lead selenide (PbSe) photoconductors interfaced to an on-focal-plane multiplexer (MUX). The design of this unique IR sensor consisted of a rugged dewar package in which was mounted a reliable, solid state thermoelectric cooler (TEC) coupled with the proven technologies of both the PbSe fabrication process and the complementary metal-oxide- semiconductor (CMOS) multiplexers. This combination of components now provides the system designer with a readily available, cost-effective, second-generation PbSe focal plane assembly for scanning, thermal imaging applications that require high resolution and system performance of NE(Delta) T capability of better than 0.2 degree(s)C.