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Success Stories | 草榴社区
Success Stories
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Table of Contents

?? ??? ??? ?????? ??? ???????.

 

XR (?? ??) ? ?? ??? ?? ??? ???? ??? ??? ????? ??? ?? ??? ???? ????. XR ??? ?? ?? (AR), ?? ?? (MR), ?? ?? (VR)? ????, ???? ?? ??? ???? ? ??? ?? ??? ???? ??? ? ????. ??? ???? ?? XR ??????? ???, ?? ?? ,??, ??, ??, ??, ??, ?????? ? ??? ??? ???? ????. ? ?????? XR ????? ??? ?? ?? ???? ???? ??? ???? ??????? ?? ????? ??? ??? ?? 草榴社区 Optical 草榴社区 ??? ??? ???????.

Extended Reality (XR) Combines Physical and Virtual Worlds

?? ??(XR)? ?? ??? ??? ?? ??? ?????

??? ????? (HUD), ?? ??? ????? (HMD), ??? ??? ?? ????? ??? ??? ??? ?? ??? ???? XR ??? ? ? ??? ?????. AR? ?? ??? ?? ??? ???? ???? ?? ??? ??? ???? ???? ? ? ??? ???. ?? ???? ?? ? ?? ??? ???? ???? HUD?? ??? ??? ???? ??? ???. MR? ?? ??? ?? ??? ??? ?? ?? ???? ??? ?? ? ????? ???? ??? ??? ??? ?? ??? ??? ? ??? ????. VR? ??? ??? ???? ?? ??? ??? ???? ? ??? ??? ??? ? ??? ????. XR? AR, VR, MR ? ?? ??? ?? ??? ????? ????? ?? ??? ??? ?????. 

Figure 1: XR continuum from AR through MR to VR | 草榴社区

Figure 1: AR???? MR, VR ??? ? ??? ??? ???? XR

XR Applications Expand as Technology Advances

?? ??? ?? XR ?????? ??

AR? ?? ??? ?????? ? ??? ?? ??? ?????? ?? ?? ?????????. ??? ???? ??? ???? ?? ?? ??????? ????? ??? ?? ???????. ?? ??? ?? ???? ????? CAGR (?? ?? ???) 25~30%? ??? ??? ?????. ?? ?? ??? ????? ????? ???? ??? ??, ??, ?? ???? ??? ????.

Figure 2: Examples of wearable XR displays | 草榴社区

Figure 2: ???? XR ????? ??

Key Optical System in XR Devices: Combiner Optics

XR ????? ?? ??: Combiner Optics

Combiner Optics ? XR ????? ?? ?? ?????. ??? ?? ????? ?? ??? ??? ??? ???? ???? ?? ??? ??? ??? ???? ? ? ??? ???. XR ????? Combiner Optics?? Refractive/Reflective Combiner? Waveguide Combiner? ????, ??? ??? ??????? ??? ?????.

Figure 3: Combiner Optics for XR Devices | 草榴社区

Figure 3: XR ???? ??? ??? Combiner Optics

草榴社区? ?? ???? ????? ??? ? ???? ???? ????. ???? ??? ?????? CODE V, ?? ?? ? ??? ??????? ?? LightTools, ?? ? ?? ??? ???? ??? ?? RSoft Photonic Device Tools? ?????. ??? ???? ?? ????? ? ??? ????? ?? ????.

Refractive/Reflective Combiners

??/?? Combiner

CODE V??? ??? ??

XR ????? ??? ???? ?????? ??? ???? ???? ??? ??? ? ?? ?? ???? ??? ??? ?????. CODE V ? ??? ??? ?? ??? ??? ???? ???? ????? ?? ?????. ?? ?????? ????? ???? ????? ????? ????? ??? ???? ??? ?????. 

  • Freeform Prism AR
  • Birdbath AR
  • Pancake VR
Figure 4: Sequential models optimized in reverse orientation in CODE V. Only display path considered | 草榴社区

Figure 4: CODE V?? ????? ???? ?? ??, ????? ?? ???

RMS ?? ?? ? ?? MTF? ?? ?? ?? ?? ??? ??? ???? ????? ?? ??? ??? ?????. ? ?? ?? ??? CODE V? ?? ???? ?? ???? ?? 2?? ?? ??? ??? ????? ?? 2D ??? ????????. ? ??????? ?? ? ?? ??? ???? ?? ??? ??? ?????.

LightTools??? ??? ?? ? ??

CODE V?? ??? ???? ??? ? ?? ???? ??? ?? ??? ?? (OSF)? LightTools? ???? ?? ??? ?????. LightTools?? ???? ??, ??? ? ??? ?? ?? ?? (BSDF)? ?? ?? ?? ??? ??? ??? ? ????. ?? ??? ?? ?? ??? RSoft ?? ????? ??, ??? ? ??? ??? ??? ??? ? ???, LightTools?? ???? ?? ? ??? ???? ?? ???? BSDF ?? ????? ????.

LightTools? ?????? ?? ??? ????? ???? ?????. ??, ?? ??? ????. LightTools? ??? ??? ???? ???? ? ??? ???. 

Figure 5: LightTools shows the combination of scene and display, including stray light effects, as shown here for a birdbath MR system | 草榴社区

Figure 5: LightTools? Birdbath MR ???? ??? ?? ?? ?? ??? ???? ??? ?????? ??? ?????

??? ?? ??? LightTools? ???? ??? ? ? ????. Pancake VR ???? ???? ??? ?? ??? ?? ???? ?? ?? ?????. 

Figure 6: LightTools also allows optimization of the system, as shown here for a pancake VR system | 草榴社区

Figure 6: LightTools? ?? Pancake VR ???? ?? ???? ??? ???.

Pancake VR ???? Eyebox ???? ?? ??? ?? ??? ????? ???? ?????.

Figure 7: Simulated performance of pancake VR system at various positions in eyebox | 草榴社区

Figure 7: Eyebox? ??? ???? ??? Pancake VR ???? ?? ????? ??

LightTools ?????? ?? ??? ?? ?? ??? ???? ??? ??? ?????. ?? LightTools? ??? ???? ???? ? ??? ?? ?? ??? ??? ??????.

Waveguide AR Design

Waveguide AR ??

Waveguide AR Overview

Waveguide AR ??

Waveguide AR ??? ??? ?? ? ??? ???? ???? ?? ???? ??? ???? ????. ??? Waveguide? ?? ???? ?? ??? ???? ??? ?? ?? ??? ?????.

草榴社区? Waveguide AR ?? ???? ?? ??? ?? ???? ?????. ?? ????? RSoft? DiffractMOD RCWA ? FullWAVE FDTD? ???? ??? ??? ????, ??? ?? ?? ??? (BSDF)? ???? RSoft ????? ???? ??? ????, LightTools?? ???? BSDF ??? ???? ?? ?? ???? ????? ??? ?????. 

Figure 8: A waveguide AR Design flow that uses RSoft tools and LightTools | 草榴社区

Figure 8: RSoft? LightTools? ??? Waveguide AR ?? ???

Types of Gratings Used in Waveguide AR Designs

Waveguide AR ??? ??? ??? ??
  • Surface Relief Gratings (SRG): SRG? ????? AR Glass? ?????. SRG? ?? ?? ???? ?? 1? ???? ??? ? ?? ??? ??? ???? ?? ????. ??? ??? RGB ?? ?? ?? ?? ??? ??? FOV? ?? ? ????. 
Surface Relief Gratings (SRG) | 草榴社区

  • Holographic Volume Grating (HVG): ????? ??? ??? ???? ??? ? ??? ??? ??? ?? ??? ?????. ??? ??? ??? ??? FOV? ?????. 
Holographic Volume Grating (HVG) | 草榴社区

  • Polarization Volume Gratings (PVG): ?? ??? ???? ?? PVG? ?? ?? ????? ?? 1? ?? ??? ?????. ? ??? ?? ??? ?? ?? ??? ??? ? ?? ??? ?????. RSoft CAD ????? ???? ?? ??? PVG? ?? ???? ? ??? ????? ?? ??? ??? ?? ???? ?? ??? ???? ??? ?????. 
Polarization Volume Gratings (PVG) | 草榴社区

Modeling the AR Glasses System Layout in LightTools

LightTools? AR Glass ??? ????

???? LightTools?? Waveguide AR ???? ?????. LightTools? SRG AR Glass ??? ???? (Figure 9)?? ???? ?? ? ????? ??? ?? ?? ???? BSDF ?? ??? ???? ????. ??? ??? ????? ???? ??? ????? ?? ??? ?????. 

Figure 9: SRG AR Glasses System layout in LightTools | 草榴社区

Figure 9: LightTools? SRG AR Glass ??? ????

HVG? ??? ??, Figure 10? ?? ??? ? ?? ??? ??? LightTools? ?????. HVG AR Glass ?????? ??? ?? ??? ??? ?????.

Figure 10: HVG AR glasses system simulation test bench in LightTools | 草榴社区

Figure 10: LightTools? HVG AR Glass ??? ????? ??? ??

Conclusion

??

?? ?? (XR)? ?? ?? ??? ?? ??? ??????? ??? ? ?? ???? ?????. Combiner Optics? ????? ??? ???? ???? ?? ?? ??? ???? ?? ? ??? ??? ???. 

草榴社区 ?? ???? XR ???? ???? ????? ????? ?? CODE V, LightTools ? RSoft? ??? ??? ????? ?? ?????. ???? ??? ??? ???? ??? ?? ??? ??? ??? ???? ??? XR Glass ? ?? ????? ??? ? ????.

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