Patent
Adjustable transparency spectacles
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TLDR
In this article, a lens made of a non-diffusing dichroic liquid crystal cell with nematic-cholesteric phase change is used to provide variable transparency provided by a lens.Abstract:
Eyewear has variable transparency provided by a lens made of a non-diffusing dichroic liquid crystal cell with nematic-cholesteric phase change. A voltage source supplies an adjustable voltage to the liquid crystal cell; adjustment of the voltage to change the transparency of the lens is effected by a photocell which senses ambient light, or by manual control, or both.read more
Citations
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Patent
System, apparatus, and method for correcting vision using an electro-active lens
TL;DR: In this article, a spectacle lens is disclosed, which provides a vision correcting area for the correction of a wearer's refractive error for non-conventional refractive errors to provide at least a part of the wearer's vision correction.
Patent
Electro-optic lens with integrated components
Ronald D. Blum,Dwight P. Duston,William Kokonaski,Joseph A. Thibodeau,Youval Katzman,Uzi Efron +5 more
TL;DR: In this paper, a range finder device (2170) and a controller (2140) for use with an optical system (2100) is described, comprising a transmitter (2160) configured to produce a first beam of non-visible radiation for intersecting a perceived object, and a receiver configured to detect a second beam reflected from the perceived object.
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Advanced electro-active optic device
TL;DR: In this article, a dynamic aperture and apodization mask are provided by one or more electroactive elements, and may be used in an ophthalmic device that is spaced apart from but in optical communication with an intraocular lens, a corneal inlay or a spectacle lens that provide an optical power.
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Flexible electro-active lens
TL;DR: In this paper, a lens including a flexible refractive optic having a fixed refractive index, an electro-active element embedded within the flexible lens, and a controller electrically connected to the electroactive element, wherein when power is applied to the lens, the refractive indices of the element can be altered.
Patent
Enhanced electro-active lens system
TL;DR: In this paper, a lens system and optical devices that provide enhanced vision correction are disclosed, which includes an electroactive layer that provides correction of at least one higher order aberration.
References
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Journal ArticleDOI
New absorptive mode reflective liquid-crystal display device
Donald L. White,Gary N. Taylor +1 more
TL;DR: In this paper, a new liquid-crystal alphanumeric display device is described, which involves the orientational change of a pleochroic dye (guest) in a cholesteric liquidcrystal mixure (host) by the application of an external electric field.
Patent
Spectacle lens having continuously variable controlled density and fast response time
TL;DR: In this paper, a spectacle lens comprises a liquid crystal layer and electrode assembly sandwiched between a pair of identically curved glass plates and layers of polarization material on the outer surfaces of the plates.
Patent
Multifocal ophthalmic lens
TL;DR: In this article, a multifocal ophthalmic lens with a variable focusing power was presented for near and farsighted corrected vision, where a voltage supply source was provided for applying a voltage to the electrodes to vary the index presented by the liquid crystal film.
Patent
Liquid crystal spectacles
Okada Takao,Nakamura Takeaki,Nishioka Kimihiko,Yamamoto Hiroyuki,Toshihito Kouchi,Tomabechi Hideo +5 more
TL;DR: A liquid crystal spectacle includes a pair of liquid crystal lenses and a frame holding the lenses as discussed by the authors, and each lens has a regulator circuit for regulating the voltage supplied from the battery to the lens to control the refractive index of the lens.
Journal ArticleDOI
Liquid Crystal Orientation on the Surface of Obliquely-Evaporated Silicon Monoxide with Homeotropic Surface Treatment
TL;DR: In this paper, the authors investigated the liquid crystal molecular orientation on a surface coated by oblique evaporation of SiO followed by treatment with homeotropic surface coupling agents and found that the relationship among evapuration conditions, surface topography and liquid crystal orientation can be explained well by using the columnar structure model of obliquely-evaporated films proposed by Goodman-van de Waterbeemd.