TY - JOUR
T1 - Simplified aberration analysis method of holographic waveguide combiner
AU - Su, Wei Chia
AU - Zhou, Shao Kui
AU - Lin, Bor Shyh
AU - Lin, Wen Kai
N1 - Funding Information:
Funding: This work is supported by the Ministry of Science and Technology of Taiwan under contract MOST 108-2221-E-018 -018 -MY3.
PY - 2020/9
Y1 - 2020/9
N2 - Generally, the diffractive waveguide combiner and computer-generated hologram (CGH) technique have the potential to achieve compact head-mounted display (HMD) with a natural 3D display function. However, the diffractive waveguide combiner will degrade the image quality because of aberration. In order to resolve this issue, the complex analysis based on the ray-tracing method is necessary. Since the major aberration of the waveguide combiners is only astigmatism and anamorphic distortion, only these two aberrations were discussed in this paper. Furthermore, two common waveguide structures were discussed here. In total, four formulas were summarized to analyze aberration and anamorphic distortion in these two structures. Finally, the simplified formulas were verified with the commercial ray-tracing software Zemax. The calculated results of the proposed method match the simulation of Zemax software well. Therefore, the aberration of an arbitrary similar diffractive waveguide can be analyzed by the proposed method. This will make the designing process simpler and faster.
AB - Generally, the diffractive waveguide combiner and computer-generated hologram (CGH) technique have the potential to achieve compact head-mounted display (HMD) with a natural 3D display function. However, the diffractive waveguide combiner will degrade the image quality because of aberration. In order to resolve this issue, the complex analysis based on the ray-tracing method is necessary. Since the major aberration of the waveguide combiners is only astigmatism and anamorphic distortion, only these two aberrations were discussed in this paper. Furthermore, two common waveguide structures were discussed here. In total, four formulas were summarized to analyze aberration and anamorphic distortion in these two structures. Finally, the simplified formulas were verified with the commercial ray-tracing software Zemax. The calculated results of the proposed method match the simulation of Zemax software well. Therefore, the aberration of an arbitrary similar diffractive waveguide can be analyzed by the proposed method. This will make the designing process simpler and faster.
UR - http://www.scopus.com/inward/record.url?scp=85091718007&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85091718007&partnerID=8YFLogxK
U2 - 10.3390/PHOTONICS7030071
DO - 10.3390/PHOTONICS7030071
M3 - Article
AN - SCOPUS:85091718007
VL - 7
JO - Photonics
JF - Photonics
SN - 2304-6732
IS - 3
M1 - 71
ER -