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Related Concept Videos

Visual System01:26

Visual System

Light enters the eye through the cornea, a transparent, dome-shaped surface covering the surface of the eyeball that helps to direct and focus incoming light. This light is then channeled toward the pupil, an adjustable opening whose size is controlled by the iris. The iris, a pigmented muscle, regulates the amount of light entering the eye by contracting or dilating the pupil, thereby ensuring optimal light levels for clear vision.
Once through the pupil, the light passes through the lens, a...
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Focusing of Light in the Eye01:16

Focusing of Light in the Eye

Light rays enter the eye through the cornea, a transparent dome-shaped tissue that is the eye's outermost layer. The cornea bends or refracts, light rays traveling to the pupil. The shape of the cornea determines how much of the light is bent and whether the image will be focused correctly on the retina at the back of the eye. Once the light has passed through both refraction layers, it converges into a single focal point onto a small area. This is where photoreceptors start transforming...
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
Imaging Biological Samples with Optical Microscopy01:18

Imaging Biological Samples with Optical Microscopy

Optical microscopy uses optic principles to provide detailed images of samples. Antonie van Leeuwenhoek designed the first compound optical microscope in the 17th century to visualize blood cells, bacteria, and yeast cells. In 1830, Joseph Jackson Lister created an essentially modern light microscope. The 20th century saw the development of microscopes with enhanced magnification and resolution.
In optical microscopy, the specimen to be viewed is placed on a glass slide and clipped on the stage...

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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
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Optics in computing: introduction to the feature issue.

T Drabik1, H Thienpont, M Ishikawa

  • 1School of Electrical and Computer Engineering, Georgia Institute of Technology, 777 Atlantic Drive Northwest, Atlanta, Georgia 30332-0250, USA. tim.drabik@ee.gatech.edu

Applied Optics
|March 14, 2008
PubMed
Summary

This issue highlights 21 papers on optical technologies in computing systems. It continues a series exploring optics applications in the computing field, showcasing advancements in optical computing.

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Area of Science:

  • Optics and Photonics
  • Computer Science
  • Information Technology

Background:

  • The integration of optics into computing systems is a rapidly evolving field.
  • This marks the eighth installment in a dedicated series on optical computing applications.

Purpose of the Study:

  • To present a collection of recent research on the implementation of optics in computer systems.
  • To provide an overview of current trends and advancements in optical computing.

Main Methods:

  • Compilation of 21 peer-reviewed papers.
  • Review of diverse research spanning optical hardware and software implementations.

Main Results:

  • Showcases 21 distinct implementations of optics within computer systems.
  • Demonstrates the breadth of current research in optical computing.

Conclusions:

  • The ongoing series underscores the sustained interest and progress in optical computing.
  • The featured papers highlight the growing importance and diverse applications of optics in modern computing.