Polarized3Dglasses vs Anaglyph

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Polarized3Dglasses video

Physicist Ali Javan invented one of the most practical and widely used types of lasers, the gas laser. Created in 1960, his helium-neon laser was the first ...

Anni Ranta-Lassila* (Corresponding author), Duc Le, Teemu Sipola, Mikko Karppinen, Jarno Petäjä, Minna Kehusmaa, Sanna Aikio, Tian Long Guo, Matthieu Roussey, Jussi Hiltunen, Alexey Popov*Corresponding author for this work

Stress is a widely spread phenomenon in the modern society. Only work-related stress was estimated to cost US companies more than $300 billion a year in healthcare costs, absences and decreased performance. Early diagnosis of stress conditions and therefore improved recovery and reduced costs could potentially be achieved with continuous monitoring of stress biomarkers using wearable devices. Compared to the conventional electrochemical and optical sensing methods used in current wearable devices, plasmonic sensing could offer higher sensitivity, better stability and faster data collection. Our developed plasmonic sensor chip represents a nanograting structured polymer on a silicon substrate, covered with gold. The sensing method is based on detecting a surface plasmon resonance wavelength shift due to refractive index change caused by presence of analytes in the vicinity of the plasmonic grating. The sensitivity of the chip was tested with two different stress-related biomarkers: cortisol and creatinine. With the tested range from 0 to 265 mM, in the current version of the system, without a receptor layer, the detection limits for cortisol and creatinine were 10.65 and 7.09 mM, respectively, which are close to the physiological ranges of these analytes in body fluids. When integrated into a wearable device, this approach has a potential in future healthcare applications paving the way to continuous stress monitoring.

How polarized3Dglasses work

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Camera lenses that can collect a lot of light (i.e., a low f-number) are known as fast lenses as they can be used with shorter exposure times and are ideal for ...

AB - Stress is a widely spread phenomenon in the modern society. Only work-related stress was estimated to cost US companies more than $300 billion a year in healthcare costs, absences and decreased performance. Early diagnosis of stress conditions and therefore improved recovery and reduced costs could potentially be achieved with continuous monitoring of stress biomarkers using wearable devices. Compared to the conventional electrochemical and optical sensing methods used in current wearable devices, plasmonic sensing could offer higher sensitivity, better stability and faster data collection. Our developed plasmonic sensor chip represents a nanograting structured polymer on a silicon substrate, covered with gold. The sensing method is based on detecting a surface plasmon resonance wavelength shift due to refractive index change caused by presence of analytes in the vicinity of the plasmonic grating. The sensitivity of the chip was tested with two different stress-related biomarkers: cortisol and creatinine. With the tested range from 0 to 265 mM, in the current version of the system, without a receptor layer, the detection limits for cortisol and creatinine were 10.65 and 7.09 mM, respectively, which are close to the physiological ranges of these analytes in body fluids. When integrated into a wearable device, this approach has a potential in future healthcare applications paving the way to continuous stress monitoring.

The shutter glasses used with most home 3D LCD-TV have a linear polarizer and when turned off you can see through them in a mirror.

3d polarisationglasses

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Polarized3Dprojector

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Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Details of Diffraction at a Grating · It is instructive to consider the spatial frequencies of the position-dependent phase changes caused by a grating. · An ...

Polarized3Dimages

See the Wiki article on Polarized 3D glasses. Most likely, you have a pair of circularly polarized glasses. The mirror reverses the circular polarization.

I would expect the opposite to be true, as light going out the right lens with polarization X and coming back in with the same polarization X should pass through unaffected.

Polarized3Dglasses test

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

Polarized3Dglasses video player

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The article on Circular polarization does it better than I would be likely to achieve in less than an hour or two. Or Hyperphysics, or Google.

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To my utter confusion, when closing the left eye and only looking through the right eye, I could not see the right eye in the mirror. The light could not pass through the same polarized lens twice. (I could, however, see the closed left eye clearly.)

See How do 3D glasses work - Sixty Symbols (Youtube) for a video explanation. The key is that the light has to pass through the lens twice, if it goes through once you just see the polarized light, if it goes through twice it doesn't see light at all. See the image on the right.

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This magnification calculator calculates magnification instantly with the help of the lens focal length and the distance of the object being provided.

N2 - Stress is a widely spread phenomenon in the modern society. Only work-related stress was estimated to cost US companies more than $300 billion a year in healthcare costs, absences and decreased performance. Early diagnosis of stress conditions and therefore improved recovery and reduced costs could potentially be achieved with continuous monitoring of stress biomarkers using wearable devices. Compared to the conventional electrochemical and optical sensing methods used in current wearable devices, plasmonic sensing could offer higher sensitivity, better stability and faster data collection. Our developed plasmonic sensor chip represents a nanograting structured polymer on a silicon substrate, covered with gold. The sensing method is based on detecting a surface plasmon resonance wavelength shift due to refractive index change caused by presence of analytes in the vicinity of the plasmonic grating. The sensitivity of the chip was tested with two different stress-related biomarkers: cortisol and creatinine. With the tested range from 0 to 265 mM, in the current version of the system, without a receptor layer, the detection limits for cortisol and creatinine were 10.65 and 7.09 mM, respectively, which are close to the physiological ranges of these analytes in body fluids. When integrated into a wearable device, this approach has a potential in future healthcare applications paving the way to continuous stress monitoring.

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Cinema 3D glasses (at least those made by Read-D) are circular polarized. This has the advantage that the polarized light reflected from the screen doesn't depend on the angle between your eye and the screen and so you can move your head around while watching. But when you look in a mirror the rotation direction is reversed on reflection.