IPhone Night Shift - Revision history

Bes at 15:37, 20 February 2017

2017-02-20T15:37:30Z

Cfolluo at 23:55, 26 January 2017

2017-01-26T23:55:17Z

Cfolluo at 23:50, 26 January 2017

2017-01-26T23:50:22Z

Bes at 23:44, 26 January 2017

2017-01-26T23:44:12Z

Bes at 23:44, 26 January 2017

2017-01-26T23:44:03Z

Cfolluo at 22:59, 26 January 2017

2017-01-26T22:59:33Z

Cfolluo at 22:57, 26 January 2017

2017-01-26T22:57:09Z

Cfolluo at 22:56, 26 January 2017

2017-01-26T22:56:23Z

Cfolluo at 22:48, 26 January 2017

2017-01-26T22:48:37Z

Cfolluo at 22:47, 26 January 2017

2017-01-26T22:47:54Z

← Older revision		Revision as of 15:37, 20 February 2017
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	[[Light_lab_Pchem\|Return to Light lab]]		[[Light_lab_Pchem\|Return to Light lab]]
		+
		+	by Carley Folluo

	In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer. The following experiment compares the resultant emission spectra from each lighting mode to magnified photos of the pixels on the screen. The screen resolution for the iPhone 6 used in this experiment is 326 ppi.		In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer. The following experiment compares the resultant emission spectra from each lighting mode to magnified photos of the pixels on the screen. The screen resolution for the iPhone 6 used in this experiment is 326 ppi.

← Older revision		Revision as of 23:55, 26 January 2017
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	[[Light_lab_Pchem\|Return to Light lab]]		[[Light_lab_Pchem\|Return to Light lab]]

−	In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer.	+	In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer. The following experiment compares the resultant emission spectra from each lighting mode to magnified photos of the pixels on the screen. The screen resolution for the iPhone 6 used in this experiment is 326 ppi.

← Older revision		Revision as of 23:50, 26 January 2017
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−	[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|thumb\|600px\|frame\|center\|'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.]]	+	[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|thumb\|600px\|frame\|center\|'''Figure 1.''' A blank white screen was shown at full brightness intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.]]
		+
		+	[[File:iPhone Night Shift photo comparison.jpg\|thumb\|600px\|frame\|center\|'''Figure 2.''' Magnified photos of a blank white screen at full brightness intensity on an iPhone 6 were taken with a Bodelin PS-HR-BASE ProScope. The left image depicts the iPhone with Night Shift mode enabled; the right image depicts the iPhone with Night Shift disabled.]]

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 [[Light_lab_Pchem|Return to Light lab]]
 In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift."  Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night.  This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer.
 [[File:iPhone Night Shift UV-Vis Spectra2.jpg|thumb|600px|frame|center|'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.]]

← Older revision		Revision as of 23:44, 26 January 2017
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		+	[[Light_lab_Pchem\|Return to Light lab]]
	In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer.		In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer.


	[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|thumb\|600px\|frame\|center\|'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.]]		[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|thumb\|600px\|frame\|center\|'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.]]

← Older revision		Revision as of 22:59, 26 January 2017
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−	[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|600px]]	+	[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|thumb\|600px\|frame\|center\|'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.]]
−	'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.

← Older revision		Revision as of 22:57, 26 January 2017
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−	[[File:iPhone Night Shift UV-Vis Spectra2.jpg]]	+	[[File:iPhone Night Shift UV-Vis Spectra2.jpg\|600px]]
	'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.		'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.

← Older revision		Revision as of 22:56, 26 January 2017
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−	[[File:iPhone Night Shift UV-Vis ~~Spectra~~.jpg]]	+	[[File:iPhone Night Shift UV-Vis Spectra2.jpg]]
	'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.		'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.

← Older revision		Revision as of 22:48, 26 January 2017
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−	'''Figure 1.'''A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.	+	[[File:iPhone Night Shift UV-Vis Spectra.jpg]]
		+	'''Figure 1.''' A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.

← Older revision		Revision as of 22:47, 26 January 2017
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−	~~===iPhone Night Shift===~~
	In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer.		In iOS 9.3, Apple introduced iPhone users to a feature known as "Night Shift." Night Shift alters the cool light of the iPhone to contain warmer hues, believing that the blue light prevents users from sleeping well at night. This feature can be analyzed by a Fiber Optic UV-Vis Spectrometer.


−	An iPhone 6 Ocean Optics Red Tide USB650 UV	+	'''Figure 1.'''A blank white screen was shown at full intensity on an iPhone 6 equipped with iOS 10.2.1. The wavelengths of light emitted by the screen were recorded with an Ocean Optics Red Tide USB650 UV Spectrometer. The emission spectrum was recorded with and without Night Shift mode enabled.