Visible light - Revision history

Editor at 18:29, 1 December 2021

2021-12-01T18:29:08Z

← Older revision		Revision as of 18:29, 1 December 2021
Line 19:		Line 19:
	Typically, when we see a colour, it is as a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths of the visible spectrum are absorbed by the body or reflected away from our eyes.		Typically, when we see a colour, it is as a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths of the visible spectrum are absorbed by the body or reflected away from our eyes.

−	= Related articles on Designing Buildings ~~Wiki~~ =	+	= Related articles on Designing Buildings =

		+	* Electromagnetic spectrum.
	* Emissivity.		* Emissivity.
	* Gamma rays.		* Gamma rays.

Designing Buildings at 06:28, 31 March 2021

2021-03-31T06:28:23Z

← Older revision		Revision as of 06:28, 31 March 2021
Line 22:		Line 22:

	* Emissivity.		* Emissivity.
		+	* Gamma rays.
	* Heat transfer.		* Heat transfer.
		+	* Microwaves.
	* Radiant heating.		* Radiant heating.
	* Radiation.		* Radiation.
Line 28:		Line 30:
	* Solar gain.		* Solar gain.
	* Thermal optical properties.		* Thermal optical properties.
		+	* X-rays.

	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Theory]]		[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Theory]]

Designing Buildings at 07:13, 3 December 2020

2020-12-03T07:13:30Z

← Older revision		Revision as of 07:13, 3 December 2020
Line 29:		Line 29:
	* Thermal optical properties.		* Thermal optical properties.

−	[[Category:Theory]]	+	[[Category:DCN_Definition]] [[Category:DCN_Guidance]] [[Category:Theory]]

Designing Buildings at 14:35, 26 March 2020

2020-03-26T14:35:51Z

← Older revision		Revision as of 14:35, 26 March 2020
Line 19:		Line 19:
	Typically, when we see a colour, it is as a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths of the visible spectrum are absorbed by the body or reflected away from our eyes.		Typically, when we see a colour, it is as a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths of the visible spectrum are absorbed by the body or reflected away from our eyes.

−	~~= Find out more =~~	+	= Related articles on Designing Buildings Wiki =
−		+
−	=== Related articles on Designing Buildings Wiki ===	+

	* Emissivity.		* Emissivity.

Designing Buildings at 14:07, 9 August 2017

2017-08-09T14:07:53Z

← Older revision		Revision as of 14:07, 9 August 2017
Line 29:		Line 29:
	* Shading coefficient.		* Shading coefficient.
	* Solar gain.		* Solar gain.
−	* Thermal optical properties	+	* Thermal optical properties.
−	* U value.	+

	[[Category:Theory]]		[[Category:Theory]]

Designing Buildings at 14:07, 9 August 2017

2017-08-09T14:07:17Z

← Older revision		Revision as of 14:07, 9 August 2017
Line 1:		Line 1:
−	[[File:~~Thermal wavelengths of the electromagnetic spectrum~~.jpg]]	+	[[File:Thermal_wavelengths_of_the_electromagnetic_spectrum.jpg\|link=File:Thermal_wavelengths_of_the_electromagnetic_spectrum.jpg]]

−	Visible light (or the visible spectrum) is a form of electromagnetic radiation. The electromagnetic spectrum includes radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma-rays. Visible light falls within the range 380 - 740 nanometers (nm), between the infrared and ultraviolet wavebands.	+	Visible light (or the visible spectrum) is a form of electromagnetic radiation. The electromagnetic spectrum includes radio waves, microwaves, infrared radiation (IR), visible light, ultraviolet light (UV), X-rays and gamma-rays. Visible light falls within the range of wavelengths from approximately 380 - 740 nanometers (nm), between the infrared and ultraviolet wavebands.

−	Visible light represents the range of light that is visible to the human eye. Human eyes contain ~~‘reciever’~~ cells called cones that can detect wavelengths within this ~~narrow band~~ of the electromagnetic spectrum.	+	Visible light represents the range of light that is visible to the human eye. Human eyes contain ‘receiver’ cells called 'cones' that can detect wavelengths within this relatively small part of the electromagnetic spectrum.

	Visible light comprises a number of colours that are typically categorised as:		Visible light comprises a number of colours that are typically categorised as:
Line 17:		Line 17:
	Combinations of these colours can create other colours. For example, the combination of red light and blue light will create magenta light. The combination of all colours will create white light. The absence of any light from the visible spectrum is perceived as being black.		Combinations of these colours can create other colours. For example, the combination of red light and blue light will create magenta light. The combination of all colours will create white light. The absence of any light from the visible spectrum is perceived as being black.

−	Typically, when we see a colour, ~~that~~ is a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths are absorbed or reflected away from our eyes.	+	Typically, when we see a colour, it is as a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths of the visible spectrum are absorbed by the body or reflected away from our eyes.

	= Find out more =		= Find out more =

Designing Buildings: Created page with "File:Thermal wavelengths of the electromagnetic spectrum.jpg Visible light (or the visible spectrum) is a form of electromagnetic radiation. The electromagnetic spectrum inc..."

2017-08-09T14:03:35Z

Created page with "File:Thermal wavelengths of the electromagnetic spectrum.jpg Visible light (or the visible spectrum) is a form of electromagnetic radiation. The electromagnetic spectrum inc..."

New page

[[File:Thermal wavelengths of the electromagnetic spectrum.jpg]]

Visible light (or the visible spectrum) is a form of electromagnetic radiation. The electromagnetic spectrum includes radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma-rays. Visible light falls within the range 380 - 740 nanometers (nm), between the infrared and ultraviolet wavebands.

Visible light represents the range of light that is visible to the human eye. Human eyes contain ‘reciever’ cells called cones that can detect wavelengths within this narrow band of the electromagnetic spectrum.

Visible light comprises a number of colours that are typically categorised as:

* Red (around 650 nm).
* Orange (around 589 nm).
* Yellow (around 570 nm).
* Green (around 510 nm).
* Blue (around 475 nm).
* Indigo (445 nm).
* Violet (around 400 nm).

Combinations of these colours can create other colours. For example, the combination of red light and blue light will create magenta light. The combination of all colours will create white light. The absence of any light from the visible spectrum is perceived as being black.

Typically, when we see a colour, that is a result of that wavelength of light reflecting from or transmitting through a body towards our eyes, whilst other wavelengths are absorbed or reflected away from our eyes.

= Find out more =

=== Related articles on Designing Buildings Wiki ===

* Emissivity.
* Heat transfer.
* Radiant heating.
* Radiation.
* Shading coefficient.
* Solar gain.
* Thermal optical properties
* U value.

[[Category:Theory]]