Acta Optica Sinica, Volume. 43, Issue 15, 1511002(2023)

Multi-Spectral Complex Infrared Scene Projection Technology

Zhuo Li, Yanze Gao*, and Jinying Zhang**
Author Affiliations
  • School of Optics and Photonics, Beijing Institute of Technology, Beijing 100081, China
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    Figures & Tables(15)
    Scanning electron microscopy images of three types of resistance array structures[4]. (a) Silicon bridge resistance; (b) thin film resistance; (c) suspended thin film resistance
    Circuit schematic diagram of basic unit of resistance array
    Working principle schematic of photothermal image conversion array
    Block diagram of infrared scene generation system using photothermal image conversion array
    Infrared images generated by photothermal image conversion array. (a) Input digital image; (b) 3-5 μm infrared image; (c) 8-12 μm infrared image
    Self-suspended thin film with microstructure developed by Beijing Institute of Technology[32]
    Suspended thin film prepared on silicon substrates[37]
    Silicon based suspension thin film[38]
    Digital micro-mirror device (DMD)[39]. (a) Photo of DMD; (b) scanning electron microscopy image of DMD pixels
    On/off state of DMD[41]
    Schematic diagram of structure and working principle of LCoS[56]
    Two period energy band of ICL under forward bias[65]
    Infrared LED array[66]. (a) Schematic diagram of infrared LED array; (b) microscope photo of infrared LED array; (c) microscope photo of single infrared LED
    • Table 1. Infrared projector based on SLED series

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      Table 1. Infrared projector based on SLED series

      SLEDTCSANSLEDHDILED TRL5HDILED TRL6
      Resolution /pixel512×512512×5121024×10242048×20482048×2048
      Spectrum regionSingle band,mid-infrared

      Dual bands,

      mid-infrared

      Single band,

      mid-infrared

      Single band,

      mid-infrared

      Single band,

      mid-infrared

      Pixel space /μm4848242424
      Frame rate /Hz1001000500125500
      Year2014201620162018
    • Table 2. Main featured technical parameters of different infrared scene generation technologies

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      Table 2. Main featured technical parameters of different infrared scene generation technologies

      Technology

      Temperature

      range /K

      Dynamic range /bitFrame rate /HzResolution /pixelSpectrum range /μmScintillationNon-uniform

      Fill

      factor /%

      Reference
      Resistance array285-700162001024×10243-5,8-12<1%809-11
      Photothermal image conversion array220-58082002200×22003-5,8-12<1%8037-38
      DMD300-8008230-6901280×10243-5Yes<0.02%9742-43
      Infrared LED arrayMax. 1800 or 14701000512×512

      3.2-4.2,

      4. 2-5.2

      32 or 4272-73
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    Zhuo Li, Yanze Gao, Jinying Zhang. Multi-Spectral Complex Infrared Scene Projection Technology[J]. Acta Optica Sinica, 2023, 43(15): 1511002

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    Paper Information

    Category: Imaging Systems

    Received: Mar. 30, 2023

    Accepted: May. 6, 2023

    Published Online: Jul. 28, 2023

    The Author Email: Gao Yanze (gao_yanze@bit.edu.cn), Zhang Jinying (jyzhang@bit.edu.cn)

    DOI:10.3788/AOS230756

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