Abstract:
PROBLEM TO BE SOLVED: To provide various thin-film coatings, electro-optic elements, and assemblies incorporating these elements.SOLUTION: Electro-optic elements are becoming common in many vehicular and architectural applications. Various electro-optic element configurations provide variable transmittance and/or variable reflectance for windows and mirrors. The present invention relates to various thin-film coatings, electro-optic elements and assemblies incorporating these elements.
Abstract:
PROBLEM TO BE SOLVED: To provide an electrochromic mirror, having a reflector which is at least partially transmissive within a region in front of a light source, such as a display, illuminator or signal light and having a reflector which does not show extreme yellow hue, but has relative color neutrality which is partially reflective and partially transmissive. SOLUTION: The electro-optic mirror is to be used in a rearview mirror assembly, having an electronic device 170 disposed in the back of an electro-optic mirror to selectively project and/or receive light. The mirror includes elements 112, 114 each having front and rear faces and disposed in the front and rear spaced elements, each having front and rear surfaces and being sealably bonded together in a spaced-apart relation to define a chamber 125; a first transparent electrode 128, including a conductive material layer disposed on the rear surface of the front element 112; an electro-optic material 126 housed in the chamber; and a second electrode 120 superimposed on the front surface of the rear element 114 and including a means 172 to compensate for the blue-green reflected light. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a rearview mirror of an automobile, the mirror having high reflectance, being tough and inexpensive, and capable of attenuating light. SOLUTION: The mirror is an electrochromic reflectance variable mirror for an automobile, the mirror including a front element and a rear element each having a front surface and a rear surface, wherein a layer of a transparent conductive material is disposed on the rear surface of the front element, and the front surface of the rear element has a high reflective reflector/electrode. The front element and the rear element are sealably bonded together in a spaced-apart relationship to define a chamber. The chamber contains a solution-phase electrochromic material in contact with the reflector/electrode. The reflector/electrode is effective to reflect light passing through the electrochromic material and the front element when the light reaches the reflector/electrode after passing through the front element and the electrochromic material. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an electrochromic back mirror assembly having a reflector formed as a continuous layer across the entire visible surface of a rear element of a mirror, and also across an area positioned in front of an optical sensor or a receptor arranged in front of an optical source such as a signal light, an information display, or an illuminator, or at the back of the electrochromic mirror. SOLUTION: This mirror comprises a housing formed to a vehicle; a front element 112 and a rear element 114 having a front face and a rear face respectively, sealably coupled with each other at an interval, defining a chamber, and installed in the housing; an electrochromic material 125 accommodated in the chamber; a first transparent electrode 112b including a conducting material layer carried on one face of the element; a second electrode 120 arranged on the front face of the rear element; a light emitting display assembly 170 installed in the housing; and a reflector arranged on the surface of the rear element. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
An electrochromic element comprises a first substrate having a first surface and a second surface opposite the first surface, a second substrate in spaced-apart relationship to the first substrate and having a third surface facing the second surface and a fourth surface opposite the third surface, and an electrochromic medium located between the first and second substrates, wherein the medium has a light transmittance that is variable upon application of an electric field thereto. The element further comprises a transparent electrode layer covering at least a portion of at least a select one of the first surface, the second surface, the third surface, and the fourth surface, wherein the transparent electrode layer comprises an insulator/metal/insulator stack. The materials utilized to construct the insulator/metal/insulator stack are selected to optimize optical and physical properties of the element such as reflectivity, color, electrical switch stability, and environmental durability.
Abstract:
An EC variable reflectance mirror (110) for a vehicle includes a reflector/electrode (120) on the third surface (114a) of the mirror. This reflector/electrode forms an integral electrode in contact with the electrochromic media, and may be a single layer of a highly reflective material or may comprise a series of coatings.
Abstract:
A variable reflectance rearview mirror for a vehicle (20), comprising: (a) a variable reflectance mirror element (100) having a reflectivity that varies in response to an applied potential so as to exhibit at least a high reflectance state and a low reflectance state; (b) a self-cleaning, hydrophilic coating (130) applied to a front surface of said mirror element; and (c) an acid resistant layer (131) applied to a surface of the self-cleaning hydrophilic coating.
Abstract:
An electrochromic mirror is disclosed for use in a vehicle rearview mirror assembly (110) having an electronic device (160, 170, 220, 725) positioned behind the electrochromic mirror for selectively projecting and/or receiving light through the mirror. The electrochromic mirror includes an electrode (120) that includes a layer of reflective material (121) and a coating of electrically conductive material (172) that is at least partially transmissive. The second electrode further includes a region (146) in front of the electronic device that is least partially transmissive. The electrically conductive coating may include a single transparent layer or a plurality of partially reflective and transmissive layers, or an electrically conductive dichroic coating. The electronic device may be a light sensor (160) or a light source such as an information display (170) or a signal light (220).
Abstract:
According to one embodiment of the present invention, an electrochromic rearview mirror assembly for a vehicle includes an electrochromic mirror (110, 920) having a variable reflectivity, a glare sensor (160, 234) for sensing levels of light directed towards the front element from the rear of the vehicle, an ambient sensor (232) for sensing levels of ambient light, a display (146, 170) positioned behind the partially transmissive, partially reflective portion of the reflector for displaying information therethrough; and a control circuit (230, 900) coupled to the sensors and the display. The control circuit determines whether daytime or nightime conditions are present as a function of the ambient light level sensed by the glare sensor to control a contrast ratio of light originating from the display and light reflecting from the partially transmissive, partially reflective area of the reflector.
Abstract:
An EC variable reflectance mirror (110) for a vehicle includes a reflector/electrode (120) on the third surface (114a) of the mirror. This reflector/electrode forms an integral electrode in contact with the electrochromic media, and may be a single layer of a highly reflective material or may comprise a series of coatings.