Patent
Visual appearance measurement method and system for randomly and regularly arranged birefringent fibers
TLDR
In this article, a method for measuring visual appearance of birefringent fibers is proposed. But the method involves emitting light, creating N polarization states of the emitted light, wherein the polarized emitted light illuminates the bireringent fiber, thereby generating internal reflection components, external reflection component, and diffusion components of the light, observing the light from the illuminated birerringent fibre, forming N images of the observed polarized light, each image comprising a plurality of pixels.Abstract:
A method for measuring visual appearance of birefringent fibers is disclosed. The method involves emitting light, creating N polarization states of the emitted light, wherein the polarized emitted light illuminates the birefringent fibers, thereby generating internal reflection components, external reflection components, and diffusion components of the light, observing the light from the illuminated birefringent fibers, creating N polarization states of the observed light, forming N images of the observed polarized light, each image comprising a plurality of pixels, measuring the intensity in each pixel of the N images, and for each pixel, separating the internal reflection component, the external reflection component, and the diffusion component from the i-th image for the N images, wherein i=1, 2, . . . N and N≧4.read more
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Systems and methods for emitting radiant energy
TL;DR: In this paper, field balancing is performed with an irradiation system including a plurality of adjustable radiant-energy emitters, where an amount of radiant energy emitted from each emitter is capable of being varied based on power received from the power source.
Patent
Method and apparatus for analyzing subsurfaces of a target material
Ervin Goldfain,Raymond A. Lia +1 more
TL;DR: In this paper, a method for aligning first and second light signals on an optical path directed to a target is described, where the first light signal provides a visualization of the target, and a portion of the second light signal reflects from at least one subsurface of a target.
Patent
Hair treatment device having a light-based hair detector
TL;DR: In this paper, a hair treatment device is provided comprising alight-based detector (10) for detecting a hair near a skin (12) surface, and a light sensor (14a, 14b) is capable of separately detecting the reflected light with the incident polarization and with a different polarization.
Patent
Multi-spectrum imaging system based on target surface feature parameter
TL;DR: In this article, a multi-spectrum imaging system based on a target surface feature parameter is presented, which consists of a light source, a lens, a polarization camera comprising a camera body, a multiscale band narrow band filter and a data processor.
Patent
Device for hair care with hair sensor based on light
Vargiz Babu,Verkhagen Riko +1 more
TL;DR: In this article, a hair care device contains a sensor for detecting hair next to the skin surface, which consists of a light source for forming a light beam with an initial polarization direction, a polarization modulator for time-dependent modulation of the polarization direction of the light beam between at least the first polarization direction and the second polarization direction.
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Dermatological treatment with visualization
TL;DR: In this paper, a handheld dermatological device for visualizing a skin treatment region prior to, during, or after therapeutic treatment with therapeutic energy is presented, where the display device is capable of displaying images of the treatment area captured by the image capture device.
Patent
Multiple channel locating
TL;DR: In this paper, the location on the object is illuminated with a portion of each of two or more of the radiation patterns, the location producing multiple object radiations, each object radiation produced in response to one of the multiple radiation patterns.
Patent
System for detecting ice or snow on surface which specularly reflects light
TL;DR: In this article, the presence of a polarization altering substance on a specular surface is detected by transmitting light from a single strobed light source to the surface over a transmitting path and receiving the transmitted light from the surface.
Patent
Method and apparatus for measuring micro structures, anisotropy and birefringence in polymers using laser scattered light
TL;DR: In this paper, a method and apparatus for measuring microstructures, anistropy and birefringence in polymers using laser scattered light includes a laser which provides a beam that can be conditioned and is directed at a fiber or film which causes the beam to scatter.
Patent
Method and apparatus for capturing 3D surface and color thereon in real time
TL;DR: In this article, a method and apparatus for acquiring surface topography is described, where the surface being acquired is illuminated by illumination sources with patterns of light from one optical perspective and the light reflected off the surface is captured by image sensors from a different perspective than the perspective of the illumination.