OPTO Design, Inc. Patent applications |
Patent application number | Title | Published |
20140160765 | PLANAR ILLUMINATION LIGHT SOURCE APPARATUS USING LIGHT EMITTER - A planar illumination light source apparatus comprises: a point light source having strong directivity; a casing having a bottom surface section with a hole for attaching the point light source, and side surface reflection sections perpendicularly provided from edge sides of the bottom surface section; a light transmitting reflection plate facing the bottom surface section and supported by the side surface reflection sections; and a diffusion plate provided so as to be opposed to a surface of the light transmitting reflection plate that is far from the point light source. The light transmitting reflection plate is formed so as to have a higher light transmissivity and lower light reflectivity as being farther away from the point light source. A light emitter is attached to a region irradiated with radiation light from the point light source. | 06-12-2014 |
20140119028 | LIGHT SOURCE DEVICE AND ILLUMINATION DEVICE INCLUDING THE LIGHT SOURCE DEVICE - An illumination device including a light source device includes a light source being constituted by LED(s); a light source side reflective plate to which the light source is fixed; an emission side reflective plate facing the light source side reflective plate; and a fixing means for fixing the both reflective plates, wherein the emission side reflective plate is formed so that a portion thereof facing the light source has the highest optical reflectance and the lowest optical transmittance while the optical reflectance decreases and the optical transmittance increases farther away from the light source, and the distance between the both reflective plates is greatest at a portion where the light source is disposed, while the distance decreases at portions farther away from the portion where the light source is disposed. Thus the device can supply light in a substantially uniform manner from a light irradiation surface. | 05-01-2014 |
20130094216 | ILLUMINATION DEVICE - An illumination device includes: a point light source; a substrate; a hollow frame having an engaging bent section at one of its edges; and a bottom surface reflection section, a side surface reflection section, and a light conducting reflection plate that are disposed inside the frame. The light conducting reflection plate is held between the bent section and the side surface reflection section that is held by the other edge of the frame and the bottom surface reflection section fixed to the substrate. The surface of the bottom surface reflection section facing the light conducting reflection plate, the inner surface of the side surface reflection section, and the surface of the light conducting reflection plate facing the bottom surface reflection section have high light reflectivity and low light transmissivity. | 04-18-2013 |
20130077345 | PLANAR LIGHT SOURCE DEVICE AND ILLUMINATION APPARATUS - To provide a planar light source device that can provide large-area, uniform, and high-quality planar illumination light. | 03-28-2013 |
20130044480 | SURFACE ILLUMINATION FIXTURE AND SURFACE ILLUMINATION DEVICE - [Purpose] To provide a surface illumination fixture using a point light source having strong directivity. | 02-21-2013 |
20130039061 | LIGHT DISPLAY METHOD AND LIGHT DISPLAY DEVICE - [Purpose] A light display method is capable of providing planar light displays of various types of characters with increased degrees of freedom, by using a plurality of point light sources and making light source units interchangeable on a point light source basis. | 02-14-2013 |
20120268688 | SURFACE LIGHT SOURCE UNIT, SURFACE ILLUMINATION DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE - Provided is a surface light source unit which has a high-directivity point light source and has a decreased thickness in the in the direction in which light is irradiated from said point light source. Also provided are a surface illumination device and a liquid crystal display device. A plurality of small chambers ( | 10-25-2012 |
20120188759 | COLOR CORRECTION METHOD FOR ILLUMINATION LIGHT, AND LIGHT SOURCE MODULE AND LIGHTING DEVICE USING THIS COLOR CORRECTION METHOD - Provided is a lighting device capable of correcting loss of color balance of illumination light that tends to occur among a plurality of light source modules and providing uniform illumination light of the same color. A lighting device | 07-26-2012 |
20120155083 | LIGHT SOURCE DEVICE, ILLUMINATION DEVICE, AND DISPLAY DEVICE - Disclosed is a light source device ( | 06-21-2012 |
20120155071 | SURFACE ILLUMINATION METHOD USING POINT LIGHT SOURCE, LINEAR LIGHT SOURCE DEVICE, AND SURFACE ILLUMINATION DEVICE USING LINEAR LIGHT SOURCE DEVICE - A surface illumination device includes: a point light source I having high directionality; a linear light conversion unit II that converts light from the point light source into linear light; a linear light diffusion unit III that diffuses the linear light; and a surface lighting unit IV that is irradiated with diffused light and outputs surface light. The light from the point light source I is converted into the linear light by the linear light conversion unit II. The linear light thus converted is diffused in a predetermined direction by the linear light diffusion unit III. The diffused light is radiated on the surface lighting unit IV to be converted into surface light and radiated. | 06-21-2012 |
20110131849 | LIGHT SOURCE DEVICE, LIGHTING DEVICE, AND DISPLAY DEVICE - A light source device is equipped with a highly directional point light source, a light source installation part having a prescribed area where the point light source is installed, and a lateral reflection part that is vertically arranged to a prescribed height from the periphery of the light source installation part. The lateral reflection part is formed with a light-transmitting reflector plate that has a reflection/transmission pattern and is provided with multiple reflection/transmission parts for reflecting and at least partially transmitting light. In the reflection/transmission pattern, multiple virtual radial lines are drawn from the light source to the light-transmitting reflector plate surface at prescribed angles, and for reflection/transmission parts (Di, j) present on the radial lines that are at the same distance from the point light source, the reflectivity and transmissivity are denoted as Re1 and Tr1 when the reflection/transmission part is on a radial line at a narrow viewing angle to the point light source, and when the reflection/transmission part is on a radial line at a wide viewing angle to the point light source, the reflectivity and transmissivity are denoted as Re2 and Tr2. The relationship therebetween is set as follows: Re1>Re2 and Tr1 | 06-09-2011 |
20100232165 | SURFACE LIGHTING UNIT, SURFACE LIGHTING LIGHT SOURCE DEVICE, SURFACE LIGHTING DEVICE - In a surface lighting unit comprising a footprint portion, a sidewall portion, and an optical reflector with an opening spaced apart by a predetermined distance from the footprint portion. The opening substantially satisfies a relation A=bx | 09-16-2010 |
20100177535 | SURFACE ILLUMINATING LIGHT SOURCE DEVICE AND SURFACE ILLUMINATING DEVICE - Uniform illuminating light is obtained on a surface at a prescribed distance from a radiation surface without increasing the thickness in a light radiation direction by using the light from the light source highly efficiently. A surface illuminating light source device is provided with a light source for radiating light; a light guide body propagating light from the light source and having a radiation surface at a prescribed position in the radiation direction; a casing closing the light guide body except the radiation surface and having the light source arranged substantially at the center; an inner reflection section arranged between the casing and the light guide body and having a reflection surface which reflects light propagating inside the light guide body; and a radiation side reflection section having an outer reflection section which is arranged on the radiation surface and has a reflection surface that reflects light propagating inside the light guide body at a prescribed rate and an opening section which is formed on the outer reflection section and through which reflection light reflected at least once on one of the reflection surfaces among the light from the light source passes. | 07-15-2010 |
20100061096 | PLANAR ILLUMINATION LIGHT SOURCE DEVICE AND PLANAR ILLUMINATION LIGHT DEVICE USING THE PLANAR ILLUMINATION LIGHT SOURCE DEVICE - The present invention provides a planar illumination light source device by which uniform illumination light can be obtained over a wide area without increasing the thickness of LEDs in the radiation direction even when a highly directional light source such as LEDs is used, and a planar illumination device using this. The present invention includes a highly directional light source, a light guiding body having a radiation plane in a radiation direction of the light source, a casing that encloses the light source and seals planes other than the radiation plane of the light guiding body, inside reflection means provided in the entirety of the area between the casing and the light guiding body, and radiation side reflection means provided on the radiation plane and reflecting light from the light source at a prescribed ratio. A light emitting diode group consisting of one or a plurality of light emitting diodes is used as the highly directional light source. | 03-11-2010 |
20090003002 | Planar Illumination Light Source Device and Planar Illumination Light Device Using The Planar Illumination Light Source Device - The present invention provides a planar illumination light source device by which uniform illumination light can be obtained over a wide area without increasing the thickness of LEDs in the radiation direction even when a highly directional light source such as LEDs is used, and a planar illumination device using this. The present invention includes a highly directional light source, a light guiding body having a radiation plane in a radiation direction of the light source, a casing that encloses the light source and seals planes other than the radiation plane of the light guiding body, inside reflection means provided in the entirety of the area between the casing and the light guiding body, and radiation side reflection means provided on the radiation plane and reflecting light from the light source at a prescribed ratio. A light emitting diode group consisting of one or a plurality of light emitting diodes is used as the highly directional light source. | 01-01-2009 |