Abstract: An apparatus for measuring of a curvature of a thin film, is adapted to measure the curvature of a thin-film. The apparatus includes a light emitting module, a first optical module, a second optical module, a third optical module, an image capture module, and an image analysis module. The light emitting module emits at least one line laser as an incident light whose cross-sectional shape is a geometric picture formed of lines. The incident light is transmitted through a first optical path formed of the first optical module, and is directed to incident the thin film by the second optical module. The reflected light is reflected by the thin film go through the second optical path, and is directed to transmit through the third optical path by the third optical module, and then is captured by the capture module to form a second geometric picture.

Abstract: An apparatus for measuring of a curvature of a thin film, is adapted to measure the curvature of a thin-film. The apparatus includes a light emitting module, a first optical module, a second optical module, a third optical module, an image capture module, and an image analysis module. The light emitting module emits at least one line laser as an incident light whose cross-sectional shape is a geometric picture formed of lines. The incident light is transmitted through a first optical path formed of the first optical module, and is directed to incident the thin film by the second optical module. The reflected light is reflected by the thin film go through the second optical path, and is directed to transmit through the third optical path by the third optical module, and then is captured by the capture module to form a second geometric picture.

Abstract: A bar-like side-emitting light guide suitable for re-directing an incident light beam such that the light beam emerges from each side of the structure. The guide structure includes a light guiding bar having an upper surface and a lower surface and extending along a longitudinal direction. On a cross-sectional plane of the light guiding bar, there is a first line interval on the upper surface. A second line interval, a third line interval and a coupling part are located at the lower surface. The coupling part couples with the second line interval and the third line interval. The distance from the lower surface of the light guiding bar to a reference plane of the upper surface varies such that the thickness gradually decreases from the coupling part to the sides. In addition, a planar light source module can be constructed by arranging the foregoing light guiding bars in parallel.

Abstract: A backlight structure is disclosed, which is constituted of a series of backlight devices connecting with one another to form a large-scale backlight area, the backlight device at least being composed of an emitting portion and a light-guiding portion, wherein the emitting portion provides a light source, mixes the light of the light source and provides the mixed light into the light-guiding portion, which then guides the mixed light out. The emitting portion connects with the light-guiding portion to form a fault structure for connecting with another light-guiding portion, thereby forming a large-scale backlight structure by connecting a sequence of the light-guiding portions using the fault structures without size constraints.

Abstract: A bar-like side-emitting light guide suitable for re-directing an incident light beam such that the light beam emerges from each side of the structure. The guide structure includes a light guiding bar having an upper surface and a lower surface and extending along a longitudinal direction. On a cross-sectional plane of the light guiding bar, there is a first line interval on the upper surface. A second line interval, a third line interval and a coupling part are located at the lower surface. The coupling part couples with the second line interval and the third line interval. The distance from the lower surface of the light guiding bar to a reference plane of the upper surface varies such that the thickness gradually decreases from the coupling part to the sides. In addition, a planar light source module can be constructed by arranging the foregoing light guiding bars in parallel.