With a simple configuration, an optical device having an in-coupling function to a lightguide is provided. The optical device includes a light guiding layer; and in-coupling optics provided integrally with the light guiding layer to couple light from a light source to an incident edge of the light guiding layer. The in-coupling optics include an optical element that is convex toward the incident edge and an air cavity provided between the optical element and the incident edge.

A display device includes a cover structure, a light guide plate, and a display panel. The cover structure includes an anti-glare layer, a light blocking frame, and an adhesive layer. The anti-glare layer has a display region and an non-display region. The light blocking frame surrounds a receiving space. An orthogonal projection of the light blocking frame on the anti-glare layer is located within the non-display region. An adhesive layer is located in the receiving space of the light blocking frame. The light guide plate is located on the surface of the adhesive layer facing away from the anti-glare layer. The display panel is adjacent to the light guide plate.

A display device includes a light guiding panel 2 having an incoming surface 2a formed on one of side surfaces, a plurality of light sources (3-1 to 3-4) respectively corresponding to a plurality of patterns that can be displayed, and a controller 6 for controlling on and off of the plurality of light sources. The light guiding panel 2 has a first reflective surface (2d, 2e) formed on the other side surface of the light guiding panel 2, the first reflective surface reflecting light emitted from a first light source and entering the light guiding panel 2 through the incoming surface 2a, and changing the propagation direction of the light, and a plurality of prisms 11 which is formed on one surface 2b of the light guiding panel, is oriented toward light emitted from a light source corresponding to the pattern, entering the light guiding panel 2 through the incoming surface 2a, and directed to the pattern, and reflects the light so that the light is emitted through the other surface 2c of the light guiding panel.

An optical bench including a substrate having a trench with the trench having an angled sidewall on which a reflective coating is provided. The optical bench also includes a first device and a waveguide positioned within the trench, a second device optically connected to the first device, and at least one active circuit electrically connected to the first device with the waveguide being positioned optically between the first device and the reflective coating. The optical bench also includes an optically transparent material that forms a first interface with the first device and a second interface with a first surface of the waveguide.

A light source device and an electronic apparatus are provided. The light source device includes a substrate, an electrode layer and a surrounding frame disposed on the substrate, a light emitter and a light detector mounted on the electrode layer and located inside of the surrounding frame, and a light permeable member disposed on the surrounding frame and covering the light emitter and the light detector. When the light emitter receives a predetermined current so as to emit an invisible light toward the light permeable member, the light detector receives a reflected part of the invisible light to generate an initial photocurrent. When the light emitter receives a manipulation current so that a detection photocurrent generated from the light detector is less than a first proportion of the initial photocurrent or greater than a second proportion of the initial photocurrent, the light emitter stops receiving the manipulation current.

An optical chip package is provided. The optical chip package includes a first transparent substrate, a second transparent substrate, and a spacer layer. The first and second transparent substrates each has a first surface and a second surface opposite the first surface. The first transparent substrate has a thickness that is different than that of the second transparent substrate. The second transparent substrate is disposed over the first transparent substrate, and the spacer layer is bonded between the second surface of the first transparent substrate and the first surface of the second transparent substrate. The recess region extends from the second surface of the second transparent substrate into the first transparent substrate, so that the first transparent substrate has a step-shaped sidewall. A method of forming an optical chip package is also provided.

A connector device for connecting optical fiber endpieces comprising an optoelectronic chip, a fiber end piece holder and a reflection surface. The chip is oriented for emitting and/or detecting optical signals along a first propagation direction normal to a circuit board. The reflection surface changes a propagation direction of optical signals from the first propagation direction to a different, second propagation direction and/or vice versa. The connector device comprises a layered optical stack mounted to the circuit board and designed for propagation of optical signals along the first propagation direction. The connector device further comprises a coupling adapter piece mounted to the layered optical stack that holds and/or secures the fiber end piece holder in an orientation enabling propagation of signals radiation along the second propagation direction. The reflection surface for changing between both propagation directions is comprised in the coupling adapter piece.

A display device includes a light guiding panel 2 having an incoming surface 2a formed on one of side surfaces, a plurality of light sources (3-1 to 3-4) respectively corresponding to a plurality of patterns that can be displayed, and a controller 6 for controlling on and off of the plurality of light sources. The light guiding panel 2 has a first reflective surface (2d, 2e) formed on the other side surface of the light guiding panel 2, the first reflective surface reflecting light emitted from a first light source and entering the light guiding panel 2 through the incoming surface 2a, and changing the propagation direction of the light, and a plurality of prisms 11 which is formed on one surface 2b of the light guiding panel, is oriented toward light emitted from a light source corresponding to the pattern, entering the light guiding panel 2 through the incoming surface 2a, and directed to the pattern, and reflects the light so that the light is emitted through the other surface 2c of the light guiding panel.

The application discloses a polymer-based optical splitter on a silicon surface. A trench is formed on the silicon surface and a polymer waveguide having three 45 degree reflectors is patterned in the trench. The trench has two slanted side walls opposite to each other. Two reflectors of the polymer waveguide are arranged on the two slanted side walls. An intrusion structure with a slanted front wall is located in the middle of the waveguide and the third reflector is formed on the slanted front wall. The first reflector receives an optical input source, the second reflector is aligned to return light to the end optical receiver. The third reflector functions as a light splitter and is aligned to an intermediate optical receiver. Light splitting ratio is determined by the third reflector size relative to the waveguide cross section near the third reflector. A fabrication method is disclosed thereof.

An optical interconnect structure connecting a VCSEL laser or a photodetector to a fiber cable with a 3D polymer waveguide is described. The waveguide has a vertical portion at one end of a horizontal trench portion joined by a 45 degree sidewall. The vertical portion interfaces with VCSEL laser arranged on a flexible circuit board. The other end of the horizontal trench portion connects to a fiber via a mechanical transport connector. The flexible structure also holds driver, receiver, pad, amplifier, RF chip and transmission lines. A method of fabrication includes: patterning a polymer cladding layer into a horizontal trench and a 45 degree side wall by applying multiple exposure techniques; filling horizontal trench and 45 degree side wall cavity to form a core followed by planarizing the core layer to remove excess core; patterning a vertical cavity aligned with the 45 degree side wall to form a reflector.