Thick Lens Optics

Science ◽  
1913 ◽  
Vol 38 (976) ◽  
pp. 367-367
Author(s):  
P. G. Nutting
Keyword(s):  
Thick Lens ◽  
Lens Optics

scholarly journals Can Liquid Lenses Increase Depth of Field in Head Mounted Video See-Through Devices?

2021 ◽  
Vol 7 (8) ◽  
pp. 138
Author(s):  
Marina Carbone ◽  
Davide Domeneghetti ◽  
Fabrizio Cutolo ◽  
Renzo D’Amato ◽  
Emanuele Cigna ◽  
...  
Keyword(s):  
Control System ◽  
Clinical Practice ◽  
Augmented Reality ◽  
Time Of Flight ◽  
Depth Of Field ◽  
Liquid Lenses ◽  
Good Potential ◽  
Distance Sensor ◽  
Limited Depth ◽  
Lens Optics

Wearable Video See-Through (VST) devices for Augmented Reality (AR) and for obtaining a Magnified View are taking hold in the medical and surgical fields. However, these devices are not yet usable in daily clinical practice, due to focusing problems and a limited depth of field. This study investigates the use of liquid-lens optics to create an autofocus system for wearable VST visors. The autofocus system is based on a Time of Flight (TOF) distance sensor and an active autofocus control system. The integrated autofocus system in the wearable VST viewers showed good potential in terms of providing rapid focus at various distances and a magnified view.

Thick Lens

2009 ◽  
pp. 99-99
Author(s):  
PC Mukherjee
Keyword(s):  
Thick Lens

Ophthalmic Lens Optics

2021 ◽  
Author(s):  
George Asimellis
Keyword(s):  
Lens Optics

Neutron imaging with bent perfect crystals. I. Imaging conditions

2001 ◽  
Vol 34 (3) ◽  
pp. 343-357 ◽  
Author(s):  
A. D. Stoica ◽  
M. Popovici ◽  
C. R. Hubbard
Keyword(s):  
High Resolution ◽  
Neutron Scattering ◽  
Spatial Resolution ◽  
Neutron Imaging ◽  
Matrix Formalism ◽  
Neutron Optics ◽  
Bent Crystals ◽  
Time Of Flight Method ◽  
Imaging Conditions ◽  
Lens Optics

Neutron imaging with bent crystals is considered in the linear approximation of neutron optics. A matrix formalism analogous to that of conventional lens optics is developed. Various imaging conditions are discussed in relation to the crystal deformation type and to possible applications in neutron scattering. All focusing conditions known previously are included as particular cases. Arrangements combining high resolution in imaging with high resolution in scattering are examined. The concept of Bragg mirrors as devices for non-dispersive imaging is introduced. The most powerful application appears to be that of Bragg mirrors combined with the time-of-flight method. Imaging with a thick packet of silicon wafers at the spatial resolution of a single thin wafer is demonstrated.

Statistical simplex approach to primary and secondary color correction in thick lens assemblies

2018 ◽  
Vol 57 (10) ◽  
pp. 1
Author(s):  
Shelby D. V. Ament ◽  
Richard N. Pfisterer
Keyword(s):  
Color Correction ◽  
Thick Lens
Sign in / Sign up

Export Citation Format

Share Document