CROSSTALK MODEL OF A DEFORMABLE-MIRROR-BASED INFRARED SCENE PROJECTOR

被引：12

作者：

BARNARD, KJ

BOREMAN, GD

PAPE, DR

机构：

[1] UNIV CENT FLORIDA,CTR RES ELECTRO OPT & LASERS,DEPT ELECT ENGN,ORLANDO,FL 32826

[2] PHOTON SYST INC,MELBOURNE,FL 32901

来源：

OPTICAL ENGINEERING | 1994年 / 33卷 / 01期

关键词：

INFRARED TECHNOLOGY; INFRARED SCENE PROJECTION; DEFORMABLE MIRRORS; SPATIAL LIGHT MODULATORS; PARTIAL COHERENCE;

D O I：

10.1117/12.153159

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An analytical model for crosstalk is developed for an infrared scene projector that utilizes a deformable-mirror device as an infrared spatial light modulator. Partial-coherence effects that result from the physical layout of the projection system are included. Crosstalk is determined by defining a crosstalk ratio in the projected image. Crosstalk-ratio calculations are carried out for monochromatic and blackbody projection sources over the 3- to 5-mum wavelength band. The results predict crosstalk ratios of 260:1, 1200:1, and 2400:1 for deformable-mirror pixels of 50, 100, and 150 mum when a blackbody source is used in the projection system. Crosstalk performance is improved at shorter wavelengths and for larger deformable-mirror pixels. The results of a proof-of-principle experiment are included to verify the feasibility of a deformable-mirror device in the projection system.

引用

页码：140 / 149

页数：10

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