Eyepiece Design

Kingslake, R.

doi:10.1016/b978-0-08-051009-5.50018-4

Cited by 19 publications

(30 citation statements)

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“…After all, if the system uses only a single glass type and meets the condition for zero primary color at one wavelength, should it not be a solution at all wavelengths? More specifically, following Kingslake [ 20 ], one may derive the following expression for the longitudinal color of a system of thin lenses:…”

Section: The Schuppmann One-glass Achromatmentioning

confidence: 99%

The importance of induced aberrations in the correction of secondary color

Rogers

2013

Advanced Optical Technologies

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Much publicity has been given to the art and science of choosing glass types for the reduction of secondary color, particularly for systems (such as achromats) in which all the elements are in contact. Although it has long been recognized that airspaces between elements can influence chromatic aberration and can even be used to reduce or correct secondary color, comparatively, little emphasis has been placed on this in the published literature. This tutorial is intended to call attention to the induced component of secondary color and suggests methods for improving color correction.

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Section: The Schuppmann One-glass Achromatmentioning

confidence: 99%

The importance of induced aberrations in the correction of secondary color

Rogers

2013

Advanced Optical Technologies

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“…The lens is designed using various techniques like Raytracing, MTF (Modulation Transfer Function), Through Focus MTF, Field Curves, etc [9][10]. Six lenses are employed in the lens module.…”

Section: Design Of Endoscopic Camera Modulementioning

confidence: 99%

Design of UWB/WiFi Module based Wireless Transmission for Endoscopic Camera

Shim¹,

Lee²,

Yi³

et al. 2015

Journal of Internet Computing and Services

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Ultra-wide-angle wireless endoscopes are demonstrated in this paper. The endoscope is composed of an ultra-wide-angle camera module and wireless transmission module. A lens unit with the ultra-wide FOV of 162 degrees is designed and manufactured. The lens , image sensor, and camera processor unit are packaged together in a 3x3x9-cm3 case. The wireless transmission modules are implemented based on UWB-and WiFi-based platform, respectively. The UWB-based module can transmit HD video to a computer in resolution of 2048x1536 (QXGA) and the frame rate of 15 fps in MJPEG compression mode. The maximum data transfer rate reaches 41.2 Mbps. The FOV and the resolution of the endoscope is comparable to a medical-grade endoscope. The FOV and resolution is ~3X and 16X higher than that of a commercial high-performance WiFi endoscope, respectively. The WiFi-based module streams out video to a smart device with th maximum date transfer rate of 1.5 Mbps at the resolution of 640x480 (VGA) and the frame rate of 30 fps in MJPEG compression mode. The implemented components show the feasibility of cheap medical-grade wireless electronic endoscopes, which can be effectively used in u-healthcare, emergency treatment, home-healthcare, remote diagnosis, etc.

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“…Ray tracing procedures, in optics and optical design text books [1][2][3][4][5][6][7][8][9][10][11] are a mainstay to exhibit the performance of optical systems and the mathematical tools essential for raysaberrations evaluations which are necessary for correcting these systems before being constructed. In symmetrical optical systems [4], there are, mainly, three different types of ray tracing procedures for the different types of the incoming rays.…”

Section: Introductionmentioning

confidence: 99%

Plotting the Profiles of Cartesian Surfaces by Ray-tracing

Yaseen¹,

Ahmed²

2017

JNUS

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A bundle of light rays, completely parallel to the optical axis, has been used to plot profiles of the Cartesian surfaces with constant paraxial curvature and varying asphericity factor. To accomplish this study, a programming code of skew ray tracing has been constructed to trace rays through all types of Cartesian or quadric surfaces of revolution. The results of this work show a remarkable utility of ray-tracing procedure to plot distinguished Cartesian surfaces profiles.

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Eyepiece Design

Cited by 19 publications

References 0 publications

The importance of induced aberrations in the correction of secondary color

The importance of induced aberrations in the correction of secondary color

Design of UWB/WiFi Module based Wireless Transmission for Endoscopic Camera

Plotting the Profiles of Cartesian Surfaces by Ray-tracing

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