Patent application number | Description | Published |
20120177320 | OPTICAL WAVEGUIDE FOR TOUCH PANEL AND TOUCH PANEL USING THE SAME - Provided are an optical waveguide for a touch panel which has high light-gathering power on a light-emitting side and which may materialize a touch panel having excellent position detection performance, and a touch panel using the optical waveguide. The optical waveguide for a touch panel includes: cores; and an over cladding layer covers the cores, the cores including light-emitting cores each formed as a lens portion having a shape in plan view including a tapered portion whose width gradually increases toward an end surface on the light-emitting side and an elliptical arc portion which bulges outwardly a tip side of the tapered portion having the gradually-increasing width so as to be in a shape of an elliptical arc, the elliptical arc portion having a major axis direction aligned in a longitudinal direction of the tapered portion. | 07-12-2012 |
20130048834 | INPUT DEVICE - The input device includes a frame-shaped optical waveguide having a hollow input-use interior, and a control means provided on the outside of one of the sides of the optical waveguide. The optical waveguide and the control means are provided on a surface of a frame-shaped retainer plate. The control means includes: a light-emitting element connected to ends of light-emitting cores of the optical waveguide; a light-receiving element connected to ends of light-receiving cores of the optical waveguide; and a CPU incorporating a program. Upon sensing a first light-shielded area where light is intercepted by the tip of a pen and a second light-shielded area where light is intercepted by user's hand that holds the pen, the program recognizes the second light-shielded area larger than the first light-shielded area as unnecessary information, based on a difference in light-shielded area. | 02-28-2013 |
20130077918 | INPUT DEVICE - An input device is provided which prevents unwanted light beams leaking through the ending end surface of a light-emitting main core from reaching a light-receiving element. The input device includes an optical waveguide having a rectangular hollow interior, a light-emitting element connected to the starting end of the light-emitting main core, and a light-receiving element connected to the ending ends of light-receiving cores. The light-receiving element is positioned close to the ending end of the light-emitting main core. A void (an air space) is provided between the ending end of the light-emitting main core and the light-receiving element. The air space causes unwanted light beams leaking through the ending end surface of the light-emitting main core to diffuse, thereby preventing the unwanted light beams from reaching the light-receiving element. | 03-28-2013 |
20130087691 | INPUT DEVICE - An input device capable of lowering the vertical position of light beams traveling within the frame of a frame-shaped optical waveguide without using optical path conversion is provided. The input device includes a light-emitting module incorporating a light-emitting element connected to light-emitting cores of the optical waveguide, and a light-receiving module incorporating a light-receiving element connected to light-receiving cores of the optical waveguide. A section of the optical waveguide on a light-receiving side, in which the light-receiving cores are formed, is placed upside down so that an over cladding layer is positioned on the underside. Accordingly, the light-receiving module is also placed upside down. Thus, the light-receiving module protrudes along the height thereof in such a manner that the amount of downward protrusion is less than the amount of upward protrusion. | 04-11-2013 |
20150355422 | OPTO-ELECTRIC HYBRID MODULE - There is provided an opto-electric hybrid module in which an optical element of an optical element unit and a core of an optical waveguide of an opto-electric hybrid unit are aligned with each other simply and precisely. The opto-electric hybrid module includes: a connector including an optical element; and an opto-electric hybrid unit including an electric circuit board and an optical waveguide which are stacked together. The connector includes aligning protrusions positioned and formed in a predetermined position with respect to the optical element. The opto-electric hybrid unit includes fitting holes for fitting engagement with the aligning protrusion, the fitting holes being positioned and formed in a predetermined position with respect to an end surface of a core of the optical waveguide. The connector and the opto-electric hybrid unit are coupled together. | 12-10-2015 |
20160070075 | OPTO-ELECTRIC HYBRID MODULE - There is provided an opto-electric hybrid module in which an optical element of an optical element unit and a core of an optical waveguide of an opto-electric hybrid unit are aligned with each other simply and precisely. This opto-electric hybrid module includes: a connector including an optical element; and an opto-electric hybrid unit including an electric circuit board and an optical waveguide which are stacked together. The connector includes aligning protrusions positioned and formed in a predetermined position with respect to the optical element. The opto-electric hybrid unit | 03-10-2016 |
20160116690 | OPTO-ELECTRIC HYBRID MODULE - An opto-electric hybrid module is provided, which is configured so that no air bubbles are present in a sealing resin which seals a space defined between an optical waveguide and an optical element. In the opto-electric hybrid module, an electric circuit is provided directly on an over-cladding layer of the optical waveguide, and the optical element is provided on predetermined portions (mounting pads) of the electric circuit. The over-cladding layer has a projection which covers a core, and a center portion of the optical element is positioned above the projection with the intervention of a sealing resin. | 04-28-2016 |
20160131834 | OPTO-ELECTRIC HYBRID MODULE - An opto-electric hybrid module is provided, which is excellent in bending resistance and optical element mountability. In the opto-electric hybrid module, a light-path core of an optical waveguide is provided on a surface of an under-cladding layer, and non-light-path dummy cores are provided on opposite sides of the light-path core in spaced relation to the light-path core as projecting from the surface of the under-cladding layer. An electric circuit having mounting pads is provided on top surfaces of the dummy cores. An over-cladding layer is provided on side surfaces and a top surface of the light-path core, and projects to cover the core. The non-light-path dummy cores each have an elastic modulus that is set higher than the elastic modulus of the under-cladding layer and the elastic modulus of the over-cladding layer. The optical element is mounted on the mounting pads, and positioned above the projecting over-cladding layer. | 05-12-2016 |