77results about How to "Reduce device thickness" patented technology

Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device. Acutely angled ramp structures may be provided on both top and bottom surfaces of optical devices for distributing light along such top surface. Illumination apparatuses are also provided using such optical devices.

A protective cover for a portable communication device includes a battery cover and a protective cover part coupled with the battery cover. The protective cover is detachably coupled with the portable communication device, and the protective cover part is disposed at a front surface of a display unit part of the portable communication device when the protective cover is coupled with the portable communication device. The portable communication device being turned off / on when the portable communication device is attached to / detached from the protective cover.

A photo detector includes a photoelectric conversion layer having a periodic structure made of a semiconductor material on a surface of the photoelectric conversion layer. In the photo detector, at least a part of a resonance region formed by the periodic structure is included in the photoelectric conversion layer of the photo detector.

Optical devices for guiding illumination are provided each having a body of optical material with staircase or acutely angled ramp structures on its top surface for distributing light inputted from one end of the device from the front exit faces of such structures along certain angular orientations, while at least a substantial portion of the light is totally internally reflected within the body until distributed from such front exit faces. Optical devices are also provided each have a body of optical material having a bottom surface with acutely angled ramp structures and falling structures which alternate with each other, such that light is totally internally reflected within the device until reflected by such ramp structures along the bottom surface to exit the top surface of the device or transmitted through the ramp structures to an adjacent falling structure back into the device. Acutely angled ramp structures may be provided on both top and bottom surfaces of optical devices for distributing light along such top surface. Illumination apparatuses are also provided using such optical devices.

A flexible printed circuit includes: a flexible substrate extending from a first end section to a second end section, and having an opening or a notch in proximity to the first end section; a first wiring layer extending from the first end section to the second end section so as to avoid the opening or the notch; a second wiring layer extending from the first end section to the second end section so as to block the opening or the notch; a first conductive member being formed opposed to the flexible substrate in relation to the first wiring layer and at least in proximity to the first end section in a region opposed to the first wiring layer, and being electrically connected to the first wiring layer; and a second conductive member electrically connected to the second wiring layer via the opening or the notch.

A diaphragm device of the present invention includes: a base plate having an aperture portion; a first blade being placed on a plane of the base plate and supported by the base plate to be able to open and close the aperture portion; a second blade being placed on the same plane of the base plate as the first blade, and supported by the base plate to be able to open and close the aperture portion; and a drive ring being formed so as to surround the perimeter of the aperture portion, the driving ring being configured to drive the first blade and the second blade to open and close, wherein the first blade and the second blade perform mutually different actions based on an operation of the drive ring.