523results about How to "Expand the range of exposure" patented technology

Regardless of the physique and riding posture of the driver in a car, this invention provides an on vehicle display and light-guiding plate with superior visibility, without blocking the front view. A transparent light-guiding plate 100 which can see through the other side from the principal plane of one side, is provided in such a manner that it inclines rearwards and in front of the driver's front view, wherein the principle plane 104a of one side opposes the drivers, with an incident end at a lower end, and a reflected end 102 at a top end. A radiating body is provided at the incident end of the light-guiding plate 100. The distance from the incident end to the reflected end is long in relation to the plate thickness. The reflected end 102 of the light-guiding plate 100 may also includes plural faces with various inclining angles, or being subjected to grinding. The principle plane 104a of one side of the light-guiding plate 100 is formed with grooves 101 along directions normal to the light-guiding direction.

The invention discloses a device making use of fish phototaxis to improve fish passing effects of fishways. The device comprises a main control computer and at least one stage light guide lock chamber. Each stage light guide lock chamber comprises a fishway, an inlet fish collection lamp and an outlet fish collection lamp, wherein the inlet fish collection lamp and the outlet fish collection lamp are sequentially arranged on the cross section of the fishway, and the distance between the inlet fish collection lamp and the outlet fish collection lamp is less than the irradiation distance of the outlet fish collection lamp. When the light guide lock chamber is multi-stage, an outlet fish collection lamp of the upper stage lock chamber serves as an inlet fish collection lamp of the adjacent lower stage lock chamber. The main control computer is connected with the inlet fish collection lamp and the outlet fish collection lamp and controls opening and closing of the inlet fish collection lamp and the outlet fish collection lamp. At the same time, the invention further provides a method making use of fish phototaxis to improve fish passing effects of fishways. According to the device and the method, irradiation ranges of the fish collection lamps are indirectly expanded, the fish collection lamps can be applied to water areas with different depths, the variety of passing fishes and the number of passing fishes are increased, and universality of the fishways is enhanced.

The invention discloses a LED street lamp, which aims at providing the LED street lamp which has the wide illumination range, the even illumination, the strong transition sense, the strong brightness, and the high power. The invention comprises a base plate (2) of a plurality of LEDs (1), the base plate (2) comprises a plane section (6) and oblique planes with at least two stages respectively opposite positioned on the both sides of the plane section (6), the LEDs (1) are arranged on the plane section (6) and the oblique planes, the oblique planes comprise two first oblique planes (11,12) and two second oblique planes (21,22), the included angle between the first oblique planes (11,12) is Alpha, and the included angle between the second oblique planes (21,22) is Beta, Alpha is more than 100 degrees and less than 135 degrees, and Beta is more than 80 degrees and less than 110 degrees. The invention can be widely applied to the outdoor lighting field.

The invention relates to a reflection cup which includes a cup body and a cup bottom; wherein, the cup bottom is provided with an opening used for leading a light source to enter into the reflection light from the opening; the upper part of the reflection cup is provided with a cut used for the beam emitted by the light source to be jetted; the cup body is of a bowl shape and the shape of the inner wall thereof is a shape obtained by firstly defining a first parabola and then rotating the parabola for one circle along the vertical rotating shaft in the center of the opening of the cup bottom; a plurality of reflection concave layers are arranged on the inner wall of the cup body; the quality of the reflection concave surfaces of any reflection concave layer is equal to that of the other; besides, each reflection concave layer includes a plurality of reflection concave surfaces of the same shape which are mutually close to each other; any reflection concave surface in each reflection concave layer is provided with a structure which allows the light emitted by the light source to be jetted from the opening by one reflection.