|| List of recent Light Guide-related patents
|Manufacturing device for a light guide plate|
A manufacturing device includes a feeder, a first pressing roller, a second pressing roller, a third pressing roller, a transmission assembly, and a driving assembly. The first pressing roller and the second pressing roller cooperatively press a hot melt adhesive from the feeder to obtain a preprocessed light guide plate.
|Backlight unit and liquid crystal display device|
In order to suppress uneven brilliance of emitted planar light and enhance a rate of light utilization, the present invention provides a backlight unit (1) including: a light guide plate (2) receiving from a light source (31) from a light receiving surface (22) on a side surface and emitting planar light from a light emitting surface on a front surface; and a front side pressing member (5) having a light guide plate pressing portion (52) to press a peripheral portion on the front surface of the light guide plate (2); wherein an attached shape (211) in a concave and convex pattern shape is formed in the light emitting surface (21), and the light guide plate pressing portion (52) is provided with an engagement portion (521) provided with a concave and convex pattern that is engageable with a attached shape (211).. .
|Panel light assembly|
A panel light assembly for use with a support frame including at least first and second support frame members, the assembly comprising an assembly frame including at least a first assembly frame member and a second assembly frame member spaced apart on opposite sides of a frame space, the first assembly frame member forming a channel, a light source supported by the first assembly frame member within the channel, a light guide member including at least one edge, the light guide supported by the first and second assembly frame members within the frame space with at least a portion of the at least one edge located adjacent the light source, a fastener for fastening the assembly frame to the first and second support frame members.. .
|Laser backlight plate|
A laser backlight plate includes a laser source, a light guide plate, least one reflective layer, and at least one light divergent structure. The laser source is configured for providing a laser beam.
|Lighting apparatus and light guide|
According to one embodiment, a lighting apparatus includes a light source which includes a light emitting surface, and a light guide provided to be coaxial with an axis which extends along a direction perpendicular to the light emitting surface. The light guide includes: an incident plane facing the light emitting surface; an outer circumferential surface configured to protrude in a direction extending away from the light source so as to surround the axis from an outer periphery of the incident surface and so as to totally reflect light from the light source which is made to enter the light guide from the incident surface; and a hollow part provided at a position distant in the axis direction from the incident surface.
|Light guide lens|
This invention relates to a light guide lens adapted for guiding light emitted from a light emitting element. The light guide lens includes a base portion disposed on a light axis (l) and including a light incident surface, and a light guide portion surrounding the light axis (l) and disposed on the periphery of the base portion.
An electronic device includes: a backlight holding case 8 accommodating a light guide plate 7; a design frame 3 which includes a flange part 3a protruding inward from a peripheral edge of a frame opening, and a design panel part 3b protruding outward therefrom, and which is attached to an opening of a backlight holding case 8 to sandwich the plate 7 between the flange part 3a and backlight holding case 8; a protective-plate-attached liquid crystal display panel 2 in which a protective plate 2a is mounted on a display surface, and which the outer peripheral part of the protective plate 2a is fixed to the panel part 3b, and the back side is illuminated with light from the light source guided by the plate 7; and a rear side case 4 assembled to the design frame 3 fixed by the panel 2 through the panel part 3b.. .
|Liquid crystal display device|
A backlight unit for a liquid crystal display device includes a light source element, a light guide plate for guiding the output light from the light source element, and a frame for housing the light guide plate. The light source element is mounted on a flexible wiring substrate fixed to the liquid crystal display panel at one end thereof, together with an electronic component.
|Display device and television device|
A liquid crystal display device 10 includes an led 17, a liquid crystal panel 11, a gate flexible boards 28 connected to an end portion of the liquid crystal panel 11, a light guide plate 16 arranged so as to overlap the liquid crystal panel 11, an optical member 15 arranged between the liquid crystal panel 11 and the light guide plate 16, a holding member hm including a frame 13 and a chassis 14 that hold the liquid crystal panel 11, the optical member 15, and the light guide plate 16, a light blocking portion 23a including a gate flexible board insertion recess 29, and a light restriction portion 30 provided to the optical member 15 and arranged in the gate flexible board insertion recess 29. The light blocking portion 23a blocks light on the outer side thereof from directly entering the end portion of the liquid crystal panel 11.
|Light emitting diode (led) backlight with reduced hotspot formation|
This disclosure provides systems, methods and apparatus for reducing hotspots in backlit displays. Hotspot artifacts in multi-color backlit displays can be reduced by incorporating optical structures along the edges of light guides incorporated into the backlights.
A light source device includes: a light-emitting part; a light guide including in its center a columnar part whose central axis direction is a lengthwise direction, that guides light input into an end face from the light-emitting part, and outputs light from a side face of the columnar part; a light guide holder that covers an end of the light guide except for at least part of the end face; and a support part, including a through-hole that penetrates from one face to another face formed therein, that holds an end of the light guide holder on a side of a first opening on the one face of the through-hole so as to allow sliding in the lengthwise direction, and light is input into the light guide via a second opening on the other face of the through-hole.. .
A display device is disclosed. In one aspect, the display device includes a protective member, a display panel accommodated in the protective member, a light guide member including a light incident surface, a heat discharge member including a support surface facing the light incident surface, and a light source disposed on the support surface to supply light to the light incident surface.
|Light guide plate and light source module|
A light guide plate and a light source module are described. The light guide plate includes a main body, first stripe microstructures and second stripe microstructures.
|Light guide plate having ribs and backlight module having same|
A light guide plate includes a bottom surface, a light-emitting surface, a light incident surface, a first side surface, a second side surface, and a number of ribs protruding from the bottom surface away from light-emitting surface. The ribs extend substantially parallelly from the first side surface to the second side surface and are continuously arranged without gaps in between.
|Light guide and illumination device|
A light guide includes: an incident surface, an exit surface and two reflective surfaces. The incident surface allows light emitted from a light source to be incident thereon.
|Light guide and illumination device|
A light guide includes an incident surface, an exit surface and a reflective surface. The reflective surface is located opposite to the exit surface to extend in the main scanning direction and includes a plurality of light reflecting patterns formed to reflect the incident light toward the exit surface.
An endoscope apparatus includes a body portion having a light source portion which emits illuminating light for illuminating an object, an insertion portion through which a light guide that guides light originating in the light source portion is inserted, having a distal end portion to which a plurality of adapters are attachable, and which can emit light originating in an led from the distal end portion, an operation portion which is connectable to the body portion and has an adapter detection section that detects a type of an adapter attached to the distal end portion, and a cpu which controls the light source portion and the led according to the type of the detected adapter.. .
|Light guide and a light device incorporating the same|
A light guide includes a light input surface which has two first edges, an output surface parallel to and larger than the input surface, and two connecting surfaces, each of which interconnects the light input surface and said light input surface and has an inclined segment. Relationships of θ<θt and l>(ad)/(tan θt) are satisfied, where θ is an included angle defined between extensions of the inclined segments of the connecting surfaces, θt is a critical angle for total internal reflection associated with the light guide, (l) is a distance between the light input and output surfaces, and (ad) is a distance between a location of incidence of a light beam on the light input surface and one of the first edges..
|Vehicular display apparatus|
A vehicular display apparatus is provided with an ambient-light luminous region that surrounds an outer periphery of a display region. An ambient light source emits light, which is then guided by an ambient-light guide body into an acrylic cylindrical body.
|Display apparatus and light emitting module thereof|
A display apparatus comprising a display panel and a light module is provided. The light module comprises a light guide plate, a plurality of light guide elements and at least a light emitting unit.
|Image reading apparatus and multifunction printing apparatus|
An embodiment of this invention is directed to reading an original at a high resolution with high quality by an image reading apparatus using a 3-line ccd and white led. The image reading apparatus according to the embodiment includes a 3-line ccd, a white led, and a light guide configured to guide light from the led to an original.
|Irradiation device and image-reading device|
An irradiation device increasing the lighting depth and facilitating the assembling is provided. A transparent bar-shaped light guide having leds disposed near ends thereof includes a first prism group and a first reflector, and, a second prism group and a reflector which are provided so as to extend in a lengthwise direction and which diffuse and reflect light.
|Light guide plate having rounded polygon pattern and liquid crystal display device having thereof|
Provided is a light guide plate including: a main body for guiding incident light and transmitting the incident light from an upper surface of the main body; and a plurality of light converging patterns in a rounded wedge shape having a rounded upper surface on a lower surface of the main body to converge and reflect the incident light in a predetermined direction.. .
A light guide plate receives light emitted from the light source, and emits the light from a light emitting surface. A prism sheet reflects light at a predetermined angle among the light emitted from the light emitting surface, allows the reflected light to enter the light guide plate, and transmits light at another angle.
|Illumination device with metalized light-turning features|
This disclosure provides systems, methods and apparatus for a front illumination device with metalized light-turning features. In one aspect, an illumination device with integrated touch sensor capability includes a light guide having a metalized light-turning feature and an electrode system for sensing changes to the capacitance between electrodes in the electrode system induced by the proximity of an electrically conductive body, such as a human finger.
|Input device and electronic information board system|
An input device for inputting coordinates to a coordinate detector includes an operation detector to detect whether a coordinate input operation to the coordinate detector is conducted; a signal generation unit to generate an operation-in-progress signal indicating an operation is in progress when the operation detector detects the coordinate input operation; a signal outputting unit to output the operation-in-progress signal generated by the signal generation unit; and a light guide member to guide the operation-in-progress signal output by the signal outputting unit to an exit position.. .
|Solar cell module|
Provided is a solar cell module. The solar cell module includes a heat sink, a light guide plate on the heat sink, a cooling part passing through a center of the light guide plate between the light guiding plate and the heat sink, the cooling part extending from a center of the heat sink up to each of edges of the heat sink, solar cells fixed to the cooling part, and a light concentrating plate disposed on the solar cells, cooling part, and the light guiding plate to concentrate solar light onto the light guide plate and the solar cells..
|Acoustic wave detection probe and photoacoustic measurement apparatus provided with the same|
In an acoustic wave detection probe provided with a light guide section that guides measuring light such that the measuring light is outputted toward a subject and an acoustic wave transducer that detects a photoacoustic wave generated in the subject by the projection of the measuring light, the light guide section includes a homogenizer that flat-tops an energy profile of the measuring light entered from the upstream side of the optical system, a light condensing member that condenses the measuring light transmitted through the homogenizer, and a. Bundle fiber which includes a plurality of optical fibers and is disposed such that the measuring light transmitted through the light condensing member enters from an entrance end of the bundle fiber..
A backlight assembly includes a plurality of point light sources, a light guide plate (“lgp”) and a printed circuit board (“pcb”). The lgp has a light incident face in which light is incident, a side surface extending from an edge portion of the light incident face, and a fixing groove which is formed from the side surface toward an inner portion thereof the pcb includes a point light source disposing portion in which the point light sources are disposed along a first direction, an extending portion extending from the point light disposing portion along a second direction substantially perpendicular to the first direction, and a protrusion which is fixed at an end portion of the extending portion.
A display module includes an outer frame, a light emitting unit, a panel device, and a light guide plate having a light entrance surface, a light exit surface, and a connecting side. A connecting ear portion is extendedly formed from the connecting side for extending into the outer frame to fix the light guide plate onto the outer frame.
An optical system comprises a light source emitting light, a collimating structure to substantially collimate the light, a converter unit to receive the substantially collimated light having an area illuminating a first aspect ratio and outputting light having an area illuminating a second aspect ratio, the second aspect ratio greater than the first aspect ratio by at least a factor of four, and a backlight light guide to receive the light from the converter unit.. .
|Light-emitting-diode light bar and related planar light source|
A led light bar, a related planar light source and a method of manufacturing such light bar is provided. The light source includes a light guide plate having a first surface and a second surface; at least one light bar, on which a plurality of leds is disposed, wherein the light bar is disposed on a lateral side of the light guide plate, and the leds are disposed inside the light guide plate to output light; a reflector, which is disposed outside the second surface and reflects light; and a diffuser, which is disposed outside the first surface and scatters reflected light of the reflector.
An endoscope according to the present invention includes: a first image pickup optical system for observing a first observation direction, a second image pickup optical system for observing an observation a second observation direction, a light guide guiding illumination light, and an illumination optical system including a ring-shaped portion illuminating the first observation direction, an incident surface being in contact with an end surface of the light guide to receive the illumination light, and two reflecting surfaces disposed at a position opposite to the incident surface, having inclinations in two directions with respect to a surface orthogonal to the longitudinal direction of the insertion portion, disposed so as to face each other, and reflecting the illumination light incident from the light guide toward directions along tangent lines of the ring-shaped portion of the illumination optical system, to cause the illumination light incident to inside of the illumination optical system.. .
A display device includes a display panel, a backlight unit configured to output light to the display panel, and a lens part interposed between the display panel and the backlight unit, and configured to transmit the light output from the backlight unit is transmitted, wherein the backlight unit includes an optical module configured to output the light, and a light guide plate configured to form a light path through which the light that is output from the optical module and incident on the light guide plate is transmitted and to scatter the incident light, the light guide plate including a fixing hole, a first pattern part configured to scatter the incident light output from the optical module, and a second pattern part provided adjacent to the fixing hole.. .
|Transparent display device|
Disclosed is a transparent display device including a light guide plate formed with a plurality of concave patterns at the lower surface thereof to totally reflect polarized light entered in a lateral direction while transmitting natural light entered from a lower direction therethrough; a light source disposed in a lateral direction of the light guide plate to emit visible light including first and second polarized lights; a first polarizing plate disposed at a lateral portion of the light guide plate to transmit either one of the first and second polarized lights through the light guide plate; a liquid crystal panel for driving liquid crystals to change the phase of the polarized light; and a second polarizing plate for controlling an amount of the polarized light according to the changed phase of the polarized light.. .
|Light guide plate, backlight module, and liquid crystal display device|
A light guide plate includes an optically effective portion and an optical coupling portion adjoining the optically effective portion. The optically effective portion includes a first bottom surface, a light output surface opposite to the first bottom surface, and a side surface connected between the first bottom surface and the light output surface.
Disclosed is a display device with slimness and narrowness, wherein the display device may include a liquid crystal panel; a light source for providing light to the liquid crystal panel; a light guide formed of a glass material, wherein the light source is combined with one side of the light guide; a reflector formed on at least one of one and the other surfaces of the light guide, wherein the reflector includes an organic material and a metal compound; and an adhesive member formed on the one surface of the light guide confronting the liquid crystal panel, and configured to attach the liquid crystal panel and the light guide to each other.. .
|Backlight module and liquid crystal display|
A backlight module and a liquid crystal display are disclosed, and the backlight module comprises a backboard where the backboard comprises a backboard main body and side walls. The side wall is provided with a light emitting article at its inner side, and the light emitting article and the backboard main body are provided with a support fixation article in between, for the support and immobilization of the light emitting article.
|Backlight unit and liquid-crystal display device|
To alleviate brightness unevenness arising from optical sheet bending or wrinkling, as well as brightness unevenness caused by light leakage, and improve light usage emitted by a light source unit, provided is a backlight unit (1) comprising a light guide plate alignment unit (5) which is positioned to maintain a given location with respect to a back chassis (10), latches with a depression part (23), and further comprising a depression part (51) which is formed such that a portion of an optical sheet (4) is inserted.. .
|Touch panel, touch device using the same, and touch control method|
A touch panel includes a light guide plate, a light emitting device, a light sensing module, and a controller. The light guide plate has a touch plane.
An endoscope includes: a first objective lens that causes an image of a first object to be observed to be formed; a second objective lens that causes an image of a second object to be observed to be formed; a light guide that guides illuminating light from a light source to an insertion portion; a light distribution member that distributes light from the light guide between a first observation direction and a second observation direction; a light amount varying portion for changing light amount proportions with respect to light emitted in the first observation direction and light emitted in the second observation direction; a distance detection portion that measures a second distance between the second objective lens and an object to be observed in the second observation direction; and a control portion that controls the light amount varying portion based on a second distance signal.. .
|Method for making light guide plate|
A method includes having test plate and light source, the test plate having matrix of first pattern-dots and equally divided into blocks. Intersecting surfaces between the first pattern-dots and the first bottom surface have the same radius rx.
Where n1 is a refractive index of the light guide member, n2 is a refractive index of the securing material, and θi is a spread angle of incoming light from the optical fiber.. .
|Optical communication device|
An optical communication device includes a planar optical waveguide, a circuit board, a light emitting element, and a light receiving element. The circuit board includes a mounting surface.
|Backlight module having non-dot area and light guide plate using same|
A light guide plate includes a light mixing part and a visual part. The light mixing part includes a light mixing bottom surface, a light incident surface, and a top surface opposite to the light mixing bottom surface.
|Backlight assembly and display device having the same|
A backlight assembly includes a light guide plate (lgp) having a stepped portion formed at a corner of the lgp, an optical sheet disposed over the lgp and a receiving container receiving the lgp and the optical sheet. The receiving container includes a bottom plate, first through fourth sidewalls and a first lgp fixing portion.
|Light guide element and backlight module|
A light guide element includes a wedge-shaped light coupling member and a rectangular light guide plate. The light coupling member includes a first bottom surface, a top surface opposite to the first bottom surface, a light incident surface interconnected between the first bottom surface and the top surface, a first connecting surface parallel with and opposite to the light incident surface, a slanted surface connecting the first connecting surface to the top surface, and a reflection film formed on the top surface and the slanted surface.
|Led lighting device which has stable structure and is easily assembled and disassembled|
The led lighting device comprises a light guide plate comprising a top surface; an upper case comprising a base disposed on the top surface of the light guide plate, and an edge extending from the base, wherein the base is thicker than the edge; a lower case comprising a body coupled to the edge of the upper case; a reflective sheet disposed between the top surface of the light guide plate and the base of the upper case; and a light source unit disposed between the light guide plate and the body of the lower case.. .
|Illuminating device and display with illuminating device|
An illuminating device includes one or more light sources that output light, a translucent light guide member having one or more side surfaces and a light output surface, and a lens sheet positioned over the light output surface of the light guide member and including a first array of lenses and a second array of lenses extended in directions intersecting each other. The light source is positioned to have an optical axis substantially in agreement with a normal direction of the side surface of the translucent light guide member, and the first array or the second array of the lenses which is extended in a direction substantially orthogonal to the optical axis of the light source has a surface area in a range of from 20% to 50% with respect to a total surface area of the first and second arrays of the lenses..
|Mirror device for motor vehicles|
An outer housing with a cover having a pvd coating; a lens; and an illumination device such as leds, light guides, light emitting surfaces and/or blinkers. The lens has a first area internal to the cover, and a second, transparent area extending to one side of the outer housing.
|Flat device for illuminating the interior of a vehicle|
The invention relates to a device for illuminating an assembly in the interior of a vehicle. The device comprises a flat light guide that is at least partially covered by an optical lacquer coat.
|Planar surgical lamp|
A planar surgical lamp includes a plurality of planar light source modules connected to form the planar surgical lamp. Each planar light source module includes a plurality of planar light source unit and each planar light source unit includes a light guide plate, which has a light incidence face and a light exit face; a light source, which generates light that enters the light guide plate via the light incidence face and projects out through the light exit face; a diffusion board, which is arranged at one side of the light exit face of the light guide plate; a surface panel, through which the light transmits; and a light guide sheet, which is arranged between the diffusion board and the surface panel.
|Luminous keyboard device|
A luminous keyboard device includes plural keys, a light-emitting element, and a light guide plate. By the light guide plate, a light beam emitted by the light-emitting element is guided to the plural keys.
In a display apparatus, image light emitted from an image forming device is incident on an image light incidence portion of a light guide member after being diffracted by a second diffractive optical element, and emitted from an image light emission portion after moving forward in the light guide member. The image light emitted from the image light emission portion is diffracted by a first diffractive optical element and reaches the eyes of an observer.
|Virtual image display apparatus|
An observer can observe a video in a state in which the visual line of the observer is caused to overlook the downward side. In particular, in a virtual image display apparatus, even when the positions of the eyes, the nose, and the ears of the observer deviate from standard positions and the observer cannot observe a video in a targeted overlooking direction in a worn state in standard setting, it is possible to change an angle in an overlooking direction with respect to a front direction and cause the observer to perform observation in a suitable visual line by changing, with a nose receiving section functioning as an adjusting section, the posture of the virtual image display apparatus and adjusting an emission state of video light from a light guide member according to individual differences of the observer..