Tokorozawa, Japan
Tokorozawa, Japan

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Patent
Citizen Electronics Co. and Citizen Holdings Co. | Date: 2016-08-02

An LED light-emitting element having reduced the occurrence of illuminance unevenness is provided. A light-emitting element comprising a substrate, an LED element mounted on the substrate, a phosphor resin arranged on the substrate so as to seal the LED element and having an emission surface from which light based on light emitted from the LED element is emitted, a reflective resin arranged around the phosphor resin; and a reflecting frame having an opening and at least part of which is arranged on the reflective resin, wherein the reflective resin is arranged directly under the reflecting frame and on the side surface of the phosphor resin, the ratio of the area of the emission surface to the area of an inside area of the reflecting frame is set to 80% or higher, and in the inside area of the reflecting frame, the reflective resin is exposed around the emission surface.


Patent
Citizen Electronics Co. and Citizen Holdings Co. | Date: 2016-08-02

A light-emitting apparatus according to the present invention has a packaging substrate having a packaging area, a plurality of light-emitting elements packaged in the packaging area, and a sealing resin that seals the plurality of light-emitting elements. The plurality of light-emitting elements includes light-emitting elements packaged in a first packaging area including the center of the packaging area and light-emitting elements packaged in a second packaging area surrounding the perimeter of the first packaging area. The packaging density of the light-emitting elements packaged in the first packaging area is higher than the packaging density of the light-emitting elements packaged in the second packaging area.


Patent
Citizen Holdings Co. and Citizen Electronics Co. | Date: 2016-10-31

The purpose of the present invention is to reduce the size and thickness of an LED module. The LED module includes a circuit substrate, at least two supply terminals, a plurality of LED dies, a plurality of FET die, a constant current circuit, a dam member, a fluorescent resin, a resistor network, and a bypass circuit, wherein the constant current circuit includes one of the plurality of FET die and the bypass circuit includes other of the plurality of FET die, a portion of the dam enclosing the LED block region forms a portion of the dam enclosing the circuit block region, and the dam member enclosing the LED block region has a annular shape and the dam member enclosing the circuit block region has a rectangular shape except for said portion of the dam member.


Patent
Citizen Electronics Co. and Citizen Holdings Co. | Date: 2016-03-02

Provided are a switch module and a push switch that have a soft sensation when pressed. A push switch and a switch module have a substrate, a first fixed contact point disposed on the substrate surface, a second fixed contact point disposed around the first fixed contact point on the substrate surface, a convex dome-shaped upper spring disposed on the substrate surface so that an end part is in contact with the second fixed contact point, the upper spring being pressed so as to invert the dome shape and to establish conduction between the first fixed contact point and the second fixed contact point, and a lower spring disposed below the upper spring, the lower spring adjusting the operation load applied to the upper spring during inversion of the dome shape.


A substrate includes a first electrode layer including a first electrode and a second electrode; a second electrode layer including a first electrode and a second electrode; a third electrode layer including a first electrode and a second electrode; and a resin layer. The first electrode layer is arranged on a first side of the resin layer, the third electrode layer is arranged on a second side of the resin layer opposed to the first side, the second electrode layer is positioned in the resin layer, and the first electrode layer is thicker than the second electrode layer. The first and second electrodes of the first electrode layer are positioned inside a peripheral edge of the first side of the resin layer, and the first and second electrodes of the third electrode layer are positioned inside a peripheral edge of the second side of the resin layer.


Patent
Citizen Electronics Co. and Citizen Holdings Co. | Date: 2016-03-09

A light emitting device includes a substrate, a light emitting element mounted on the substrate, a phosphor plate for covering an upper surface of the light emitting element, a white reflecting resin placed on the substrate to surround side surfaces of the light emitting element and the phosphor plate, and a reflecting frame, including a reflecting film formed by plating and a bonding portion, and placed on the substrate to surround the light emitting element, the phosphor plate, and the white reflecting resin. The reflecting frame is directly bonded to the substrate by the bonding portion in a portion where the white reflecting resin is not located.


Patent
Citizen Holdings Co. and Citizen Machinery Co. | Date: 2016-03-09

A beveling method for beveling the edge of the opening of a cross hole (2-1) formed in a workpiece (W) while rotating a conical tool (1), which has conical cutting blade sections (11-1, 11-2), wherein beveling is carried out so that a surface of the same width is formed on the edge of the opening of the cross hole (2-1) by controlling the height of the conical tool (1) and/or the position of the rotation shaft of the conical tool (1) on the basis of a conic section, which is generated when a cutting blade section (11-1, 11-2) is cut with an imaginary plane (V) that contacts the processing point (P) of the conical tool (1) on the cross hole (2-1), and the shape of the edge of the cross hole (2-1) opening.


Patent
Citizen Holdings Co. | Date: 2016-09-16

An optical device includes a liquid crystal shutter using a first liquid crystal material, the liquid crystal shutter controlling application of a light beam to a predetermined point, corresponding to a driving waveform supplied to the liquid crystal shutter; a spatial optical modulator using a second liquid crystal material whose contrast becomes a maximal contrast at a temperature different from that of the first liquid crystal material, the spatial optical modulator modulating the light beam corresponding to a driving waveform supplied to the spatial optical modulator; and a supplying unit that supplies to the liquid crystal shutter and the spatial optical modulator, driving waveforms that are adjusted such that the contrasts of the liquid crystal shutter and the spatial optical modulator each become equal to or greater than 50% of the maximal contrast at a same temperature,


Patent
Citizen Holdings Co. and Citizen Machinery Co. | Date: 2016-02-03

A polygon machining method whereby first polygon machining is carried out on a workpiece held by a main axis, by using a polygon cutter attached to a tool main axis, then machining using a tool other than the polygon cutter is carried out, and second polygon machining after said machining is carried out, using the polygon cutter. The polygon machining method comprises: a synchronized stopping step in which the main axis is stopped at a predetermined prescribed rotation position, in a state in which the main and the tool main axis during polygon machining are synchronously rotated when the first polygon machining has been completed; a synchronization release step in which the synchronization of the main axis and the tool main axis is released when starting machining after the first polygon machining; a main axis stopping step in which the main axis is stopped at a prescribed rotation position when the machining after first polygon machining has been completed; and a synchronization starting step in which the main axis and the tool main axis are synchronously rotated when starting second polygon machining.


Patent
Citizen Holdings Co. | Date: 2016-10-26

A liquid crystal optical device includes multiple liquid crystal elements (2-1 to 2-3) arranged along the optical axis. In this liquid crystal optical device, each of the liquid crystal elements includes a liquid crystal layer 10 in which liquid crystal molecules 15 aligned along a predetermined direction are contained, and two transparent electrodes 13, 14 that are disposed so as to face each other with the liquid crystal layer 10 disposed therebetween. At least one of the two transparent electrodes includes multiple partial electrodes (13-1 to 13-n), and, for each of levels obtained by dividing, by a predetermined number of the levels, difference between a maximum value and a minimum value of a phase modulation amount in a phase distribution provided to a luminous flux passing through the liquid crystal layer, at least one of the multiple partial electrodes is disposed on a part of the liquid crystal layer, the part providing the luminous flux with a phase modulation amount corresponding to the level. A position of the boundary between any two adjacent ones of the partial electrodes, with respect to the luminous flux, is different for each of the liquid crystal elements.

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