상세정보
학술지
Analysis on Angular Field of View of Holographic Image Dependent on Hologram Numerical Aperture in Holographic Display
- 저자
- 채병규
- 발행일
- 202003
- 출처
- Optical Engineering, v.59 no.3, pp.1-19
- ISSN
- 0091-3286
- 출판사
- SPIE
- 협약과제
- 17HS2200, 고품질 생체정보 획득 분석을 위한 단층 이미징 및 인식 센서 기술 연구, 채병규
- 초록
- We investigate the angular field of view (AFOV) of a holographic image reconstructed from the digital Fresnel hologram in holographic display. The theoretical analysis clarifies that the AFOV of a holographic image is fundamentally determined by the hologram numerical aperture (HNA) other than a diffraction angle of pixel pitch of a pixelated modulator. This property is proved for various types of the digital holograms using a numerical simulation and optical experiments. The high-HNA hologram reconstructs the image with a high viewing angle, whereas the image contraction is inevitable due to the Nyquist sampling criterion in the hologram synthesis. We demonstrate the method for reconstructing the holographic image with a high viewing angle without image contraction.
- KSP 제안 키워드
- Field of view(FOV), Fresnel hologram, Numerical simulations, Nyquist sampling, Sampling criterion, Theoretical Analysis, holographic display, numerical aperture, viewing angle