From Power Technology, Inc.
The typical human eye can detect lightwaves that range from red to violet. We sense these lightwaves as
color, violet being the shortest wavelength and red the longest. In fact, red waves are approximately twice
the length of violet. Lasers enable us to generate over a trillion different wavelengths. However, the human
eye can sense only about ten million of them. These colors (in order of decreasing wavelength) are red,
orange, yellow, green, blue, indigo, and violet. We cannot sense light with wavelengths shorter than 400nm
or longer than 700nm.
Products & Services
Product Announcements
|
|
||||||
|
|
Topics of Interest
PRINCIPLES AND UNITS 1. Explanation of light. Light ( Standard Handbook for Electrical Engineers) may be defined as radiant energy of those wavelengths to which the human eye is sensitive.
5.4 Colour vision Colour vision is due to the cones on the retina which occur in three different types, responding to different colours. Figure 5.11 shows that human vision is restricted to range of...
Hugh King, Thorn Lighting 25.1 Lighting Theory 25.1.1 The Nature of Light Light is a form of electromagnetic radiation similar in nature and behaviour to radio waves at one end of the...
2.1 Introduction It is believed that the basic physical building blocks forming the world we live in may be categorized into particles of matter and carriers of force between matter. All known...
2.1 INTRODUCTION The instrumental methods of analysis are now being extensively used for the qualitative analysis and identification of organic compounds. The most useful of these methods are the...
