(52) Calculate Beam Angle fromLumen _ Lux (1.8.23).xlsx

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2				www.electricalnotes.wordpress.com
3	Calculate Fixture Lumen & Illumination Diameter as per Beam Angle			Jignesh.Parmar
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5	Required Illumination in Lux (E2):	22	Lux
6	Lighting Fixture Distance(d2):	4	Meter
7	Lighting Fixture Beam Angle (ϕ):	145	°
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9	Irradiance at 1.0 meter (E1):	352	Lumen/M2
10	Beam angle of the lamp (Ω):	4.39	steradian
11	Ilumination Diameter at 4 Meter:	10.44	Meter
12	Required Lumen of Lighting Fixtures:	1547	Lumen
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16	Calculate Lux level & Illumination Diameter as per Beam Angle
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18	Lighting Fixture lumen output:	12345	Lumen
19	Lighting Fixture Distance(d2):	5	Meter
20	Lighting Fixture Beam Angle (ϕ):	40	°
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22	Beam angle of the lamp (Ω):	0.38	steradian
23	Ilumination Diameter at 5 Meter:	3.60	Meter
24	Available Illumination at 5 Meter:	1303	Lux
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28	Calculate Beam Angle & Illumination Diameter from Fixture Lumen
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30	Lighting Fixture Lumen outPut	1547	Lumen
31	Lighting Fixture Distance(d2):	4	Meter
32	Required Illumination in Lux (E2):	22	Lux
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34	Irradiance at 1.0 meter (E1):	352	Lumen/M2
35	Beam angle of the lamp (Ω):	2.55	steradian
36	Lighting Fixture Beam Angle (ϕ):	145	°
37	Ilumination Diameter at 4 Meter:	10.44	Meter
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