Luminous flux - Revision history

Designing Buildings at 09:58, 27 July 2021

2021-07-27T09:58:35Z

← Older revision		Revision as of 09:58, 27 July 2021
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−	According to BRE’s [http://www.brebookshop.com/details.jsp?id=327173 The essential guide to retail lighting]:	+	According to BRE’s [http://www.brebookshop.com/details.jsp?id=327173 The essential guide to retail lighting]: The term 'luminous flux' describes the ‘amount of light produced by a lamp; usually measured in lumens’. Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/sq. m)

−	The ~~term 'luminous~~ flux~~' describes~~ the ~~‘amount~~ of light ~~produced~~ by a lamp~~; usually~~ measured in ~~lumens’~~.	+	[https://www.bsria.com/uk/product/JDdKNn/illustrated_guide_to_electrical_building_services_3rd_edition_bg_322014_a15d25e1/ The Illustrated Guide to Electrical Building Services, Third Edition (BG 31/2017)], by David Bleicher & Peter Tse, published by BSRIA in 2014, states: ‘Luminous flux is the quantity of light emitted by a lamp and is measured in lumens (lm). A 60 W incandescent lamp (formerly commonplace but now obsolete) emits about 700 lm, and a 28 W T5 fluorescent lamp emits about 2600 lm. It can be seen from this comparison that incandescent lamps are less energy efficient than discharge lamps.’
−		+
−	~~Lumen are related to lux~~ (lx), ~~the SI unit of illuminance, or amount of light on~~ a ~~surface, in that one lux is equal to one lumen per square metre (~~lm~~/sq~~. m)	+

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

Designing Buildings at 07:57, 29 December 2020

2020-12-29T07:57:36Z

← Older revision		Revision as of 07:57, 29 December 2020
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	* Voltage.		* Voltage.

−	[[Category:~~Standards_/_measurements~~]] [[Category:~~DCN_Standard~~]]	+	[[Category:DCN_Definition]] [[Category:Definitions]] [[Category:Standards_/_measurements]]

Editor at 19:13, 2 May 2019

2019-05-02T19:13:46Z

← Older revision		Revision as of 19:13, 2 May 2019
Line 24:		Line 24:
	* Lighting of construction sites.		* Lighting of construction sites.
	* Luminaire efficacy.		* Luminaire efficacy.
		+	* Lux.
	* Rights to light.		* Rights to light.
	* Voltage.		* Voltage.

−	[[Category:Standards_/_measurements]]	+	[[Category:Standards_/_measurements]] [[Category:DCN_Standard]]

Editor at 12:22, 15 October 2018

2018-10-15T12:22:01Z

← Older revision		Revision as of 12:22, 15 October 2018
Line 1:		Line 1:
	According to BRE’s [http://www.brebookshop.com/details.jsp?id=327173 The essential guide to retail lighting]:		According to BRE’s [http://www.brebookshop.com/details.jsp?id=327173 The essential guide to retail lighting]:

−	The term 'luminous flux' describes the ~~‘Amount~~ of light produced by a lamp; usually measured in lumens’	+	The term 'luminous flux' describes the ‘amount of light produced by a lamp; usually measured in lumens’.

−	Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)	+	Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/sq. m)

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

	* Ballast or control gear.		* Ballast or control gear.
Line 27:		Line 25:
	* Luminaire efficacy.		* Luminaire efficacy.
	* Rights to light.		* Rights to light.
		+	* Voltage.

	[[Category:Standards_/_measurements]]		[[Category:Standards_/_measurements]]

Editor: Reverted edits by 1.81.101.74 (talk) to last revision by Designing Buildings

2018-08-21T09:02:02Z

Reverted edits by 1.81.101.74 (talk) to last revision by Designing Buildings

← Older revision		Revision as of 09:02, 21 August 2018
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−	According to ~~Razorlux’s~~ [~~https~~://www.~~razorlux~~.com/~~led-flood-lights/led-sports-lighting/~~ The essential guide to retail lighting]:	+	According to BRE’s [http://www.brebookshop.com/details.jsp?id=327173 The essential guide to retail lighting]:

	The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’		The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’

−	Lumen are related to lux (lx), the SI unit of ~~[https://www.razorlux.com/led-flood-lights/~~ illuminance] , or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)	+	Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)

	= Find out more =		= Find out more =

1.81.101.74 at 07:56, 21 August 2018

2018-08-21T07:56:42Z

← Older revision		Revision as of 07:56, 21 August 2018
Line 1:		Line 1:
−	According to ~~BRE’s~~ [~~http~~://www.~~brebookshop~~.com/~~details.jsp?id=327173~~ The essential guide to retail lighting]:	+	According to Razorlux’s [https://www.razorlux.com/led-flood-lights/led-sports-lighting/ The essential guide to retail lighting]:

	The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’		The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’

−	Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)	+	Lumen are related to lux (lx), the SI unit of [https://www.razorlux.com/led-flood-lights/ illuminance] , or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)

	= Find out more =		= Find out more =

Designing Buildings at 08:05, 15 August 2018

2018-08-15T08:05:06Z

← Older revision		Revision as of 08:05, 15 August 2018
Line 3:		Line 3:
	The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’		The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’

−	Lumen are related to lux (lx), the SI unit of ~~[https://www.razorlux.com/info/the-secret-of-tennis-court-lighting-design-26799910.html~~ illuminance], or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)	+	Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)

	= Find out more =		= Find out more =

61.150.11.195 at 06:06, 15 August 2018

2018-08-15T06:06:23Z

← Older revision		Revision as of 06:06, 15 August 2018
Line 3:		Line 3:
	The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’		The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’

−	Lumen are related to lux (lx), the SI unit of [[www.razorlux.com/info/the-secret-of-tennis-court-lighting-design-26799910.html\|illuminance]], or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)	+	Lumen are related to lux (lx), the SI unit of [https://www.razorlux.com/info/the-secret-of-tennis-court-lighting-design-26799910.html illuminance], or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)

	= Find out more =		= Find out more =

61.150.11.195 at 06:04, 15 August 2018

2018-08-15T06:04:31Z

← Older revision		Revision as of 06:04, 15 August 2018
Line 3:		Line 3:
	The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’		The term 'luminous flux' describes the ‘Amount of light produced by a lamp; usually measured in lumens’

−	Lumen are related to lux (lx), the SI unit of illuminance, or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)	+	Lumen are related to lux (lx), the SI unit of [[www.razorlux.com/info/the-secret-of-tennis-court-lighting-design-26799910.html\|illuminance]], or amount of light on a surface, in that one lux is equal to one lumen per square metre (lm/m^2)

	= Find out more =		= Find out more =

Designing Buildings at 16:14, 9 February 2017

2017-02-09T16:14:55Z

← Older revision		Revision as of 16:14, 9 February 2017
Line 19:		Line 19:
	* General lighting v task lighting.		* General lighting v task lighting.
	* Illuminance.		* Illuminance.
		+	* Lamp.
	* Lamp efficacy.		* Lamp efficacy.
	* Light pollution.		* Light pollution.