Principles of wide angle, large aperture optical systems

1998 ◽  
Author(s):  
David J. Lamb ◽  
Russell A. Chipman ◽  
Lloyd W. Hillman ◽  
Yoshiyuki Takahashi ◽  
John O. Dimmock
Keyword(s):  
Optical Systems ◽  
Wide Angle ◽  
Large Aperture

scholarly journals Ultrawide-angle and high-efficiency metalens in hexagonal arrangement

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Chun-Yuan Fan ◽  
Chia-Ping Lin ◽  
Guo-Dung J. Su
Keyword(s):  
High Efficiency ◽  
Numerical Aperture ◽  
Vital Role ◽  
Optical Systems ◽  
Wide Field ◽  
Wide Angle ◽  
Camera Systems ◽  
Single Lens ◽  
Hexagonal Arrangement ◽  
Virtual And Augmented Reality

Abstract Wide-angle optical systems play a vital role in imaging applications and have been researched for many years. In traditional lenses, attaining a wide field of view (FOV) by using a single optical component is difficult because these lenses have crucial aberrations. In this study, we developed a wide-angle metalens with a numerical aperture of 0.25 that provided a diffraction-limited FOV of over 170° for a wavelength of 532 nm without the need for image stitching or multiple lenses. The designed wide-angle metalens is free of aberration and polarization, and its full width of half maximum is close to the diffraction limit at all angles. Moreover, the metalens which is designed through a hexagonal arrangement exhibits higher focusing efficiency at all angles than most-seen square arrangement. The focusing efficiencies are as high as 82% at a normal incident and 45% at an incident of 85°. Compared with traditional optical components, the proposed metalens exhibits higher FOV and provides a more satisfactory image quality because of aberration correction. Because of the advantages of the proposed metalens, which are difficult to achieve for a traditional single lens, it has the potential to be applied in camera systems and virtual and augmented reality.

Optical systems for large-aperture phased laser array including diffractive optics

2019 ◽  
Author(s):  
Jacob Erlikhman ◽  
Peter Krogen ◽  
Prashant Srinivasan ◽  
Will Hettel ◽  
Peter Meinhold ◽  
...  
Keyword(s):  
Diffractive Optics ◽  
Optical Systems ◽  
Laser Array ◽  
Large Aperture

Large-aperture, wide-angle nonmechanical beam steering using polarization gratings

2016 ◽  
Vol 56 (3) ◽  
pp. 031211 ◽  
Author(s):  
Steven Serati ◽  
Christopher L. Hoy ◽  
Lance Hosting ◽  
Kelly Kluttz ◽  
Jay Stockley ◽  
...  
Keyword(s):  
Beam Steering ◽  
Wide Angle ◽  
Large Aperture ◽  
Polarization Gratings

Focal plane reduction of large aperture optical systems

1998 ◽  
Author(s):  
David J. Lamb ◽  
Russell A. Chipman ◽  
Lloyd W. Hillman ◽  
Yoshiyuki Takahashi ◽  
John O. Dimmock
Keyword(s):  
Focal Plane ◽  
Optical Systems ◽  
Large Aperture

The optical systems of certain types of wide-angle IR objectives

2013 ◽  
Vol 80 (2) ◽  
pp. 107
Author(s):  
A. Ya. Gebgart ◽  
E. A. Shatova ◽  
V. V. Medvedev
Keyword(s):  
Optical Systems ◽  
Wide Angle
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