71results about How to "Solve uneven lighting" patented technology

The invention provides a multifunctional intelligent table lamp which is composed of a lamp head, a lamp bracket and a lamp base. The lamp head comprises a lamp cover, and a luminescent tube and an image collecting device are both arranged beneath the lamp cover. The lamp bracket is formed by perpendicularly connecting a transverse lamp bracket body and a vertical lamp bracket body, the transverse lamp bracket body is composed of first telescopic rods and a first motor which are connected with each other, and the vertical lamp bracket body is composed of second telescopic rods and a second motor which are connected with each other. The first telescopic rods are connected with the lamp cover, the first motor is connected with the second telescopic rods, and the second motor is arranged on the lamp base. A controller is arranged inside the lamp base, and the image collecting device, the first motor, the second motor and a vocal apparatus are all connected with the controller. The lamp base is further provided with a shift knob and a light adjusting knob. According to the multifunctional intelligent table lamp, a lighting area can be automatically adjusted according to the change of a user reading area, the distance kept between the eyes of a user and a book can further be detected in real time, prompting can be made by the vocal apparatus when necessary, the user can be promoted to use the eyes sanitarily, and thus myopia can be effectively prevented.

The invention provides an OLED device and an array substrate. The embodiments of the invention provide an OLED device which is configured such as that: two transparent anode layers are arranged, and a metal layer is arranged between the two transparent anode layers so as to reduce resistance of the transparent anodes in a horizontal direction. The OLED device increases horizontal conductivity of the transparent anodes, addresses the problem of uneven light emission caused by large horizontal resistance of the transparent anodes for OLED devices, and increases quality of image displaying.

The invention discloses a light-emitting diode (LED) full-color chip on board (COB) mode packaging method. The LED full-color COB mode packaging method is characterized in that the LED full-color COB mode packaging method comprises a substrate, a circuit arranged on the substrate, LED light emitting chips, and a packaging glue for the LED light emitting chips, wherein the circuit comprises a front surface circuit arranged on the upper surface of the substrate and a back surface circuit arranged on the back surface of the substrate, and the LED light emitting chips are placed on the front surface circuit; the LED full-color COB mode packaging method mainly includes the following steps of substrate cleaning, die bonding primer unfreezing, uniform expansion of distances among the LED chips, attachment of the LED chips to the substrate through a die bonder and a die bonding primer, connection of the LED chips attached to the substrate with a bonding pad on the substrate through a bonding wire and a welding wire machine, and compression molding of a packaging glue and the front surface of the substrate through a die manufacturing machine under a high temperature to protect the LED chips on the substrate. According to the LED full-color COB mode packaging method, the problem of uneven light emitting caused by a light mixing phenomenon existing after an application end is lighted in original COB packaging processes is solved, so that reliability and property of an indoor display screen can be improved, service life of the indoor display screen is prolonged, and the method is further application to outdoor display screens.

The invention relates to the technical field of light-emitting diode manufacturing, in particular to a light-emitting diode, a photoelectric module and a display device. By controlling the minimum distance between the strip-shaped part of the second contact electrode of the light-emitting diode and the geometric center of the surface of the light-emitting diode, an ejector pin operation window is expanded, the problem that a chip is abnormal due to the fact that an ejector pin is prone to bursting a protruding area of the contact electrode is solved, and by arranging the passing position on the second bonding pad electrode, the problem of non-uniform light emitting of the light-emitting diode caused by current change due to the change of the contact electrode is avoided.

The invention introduces an LED chip which improves the light-emitting rate and a technique for preparing the LED chip. The LED chip is provided with a first semiconductor material layer in the first conducting type, an active luminescent layer, a second semiconductor material layer with the second conducting type, and an LED chip which is formed from a first and a second electrodes and is arranged on the first and the second semiconductor material layers, wherein the second electrode is composed of a transparent electrode and a first thickening electrode which is positioned in part of the transparent electrode, and the first electrode is positioned on the nongeometric edge of the LED chip and is encircled by the transparent electrode.

The invention relates to the technical field of image processing, in particular to an image processing method and device with uneven illumination, and the method comprises the steps: firstly converting an obtained original image into a gray level image; dividing the grayscale image into a plurality of grayscale sub-images, and calculating a preliminary threshold of each grayscale sub-image; generating a self-adaptive threshold value of the grayscale image according to the preliminary threshold value; and finally, converting the grayscale image into a binarized image according to the adaptive threshold. According to the invention, the binarized threshold of the grayscale image is adaptively adjusted, so that the phenomenon of non-uniform illumination is overcome.

The invention relates to a navigation method for a visual automatic guided vehicle (AGV). A vehicle-mounted camera connected with a control center is mounted on the AGV; the control center is providedwith software for image processing and mark belt edge identification; and the control center is connected with a driving program of the AGV. The navigation method comprises the following steps that 1, software initialization is conducted, and parameters required for visual navigation are loaded; 2, after the parameters are loaded, the camera is started to read the current frame of an image to berecorded as srcFrame, if the srcFrame is empty, the program ends, and if the srcFrame is not empty, the srcFrame enters into the step 3; and 3, the while chain image processing process is conducted; and 4, the decision condition is output, and the driving program of the AGV decides movement in the actual scene according to the condition. Compared with the prior art, the navigation method has the advantages that guidance precision is high, path setting and change are easy and flexible, and the intelligence degree is high.

The invention discloses a multifunctional movable novel flowerpot. The flowerpot includes a flowerpot body, and a moving device is arranged on the lateral surface of the flowerpot body and consists offirst mounting boxes, rectangular openings, first bearings, small openings and an automatic water addition device. The first mounting boxes are positioned on the annular lateral surfaces of the lowerend of the flowerpot body, distributed uniformly and fixedly connected to the flowerpot body; the rectangular openings are formed in the lateral surfaces of the first mounting boxes and fixedly connected to the first mounting boxes; the first bearings are positioned on the opposite lateral surfaces of the upper ends of the first mounting boxes and are in embedding connection with the first mounting boxes; the small openings are formed in the lateral surfaces of second mounting boxes and fixedly connected to the second mounting boxes; the automatic water addition device is positioned on the lateral surface of the flowerpot body. A controller is arranged on the upper surface of the flowerpot body and electrically connected to a first retractable motor, a second retractable motor, a third retractable motor, a first stepping motor, a first rotating motor, a second rotating motor and an air pump. The flowerpot has the advantages of a simple structure and high practicability.

Provided is a light reflecting plate capable of reducing glare of reflected light while maintaining high light reflectance by regular reflection. The light reflecting plate includes a base, a light reflecting layer that is formed on the base and made of silver or silver alloy, or aluminum or aluminum alloy, in which arithmetic average roughness (Ra) is 0.10 to 0.30 μm and arithmetic average waviness (Wa) is 0.30 to 2.50 μm on a surface of the light reflecting layer.

A backlight module is provided. The backlight module includes a substrate; a plurality of light emitting elements disposed on the substrate; an optical film disposed on the plurality of light emitting elements; a plurality of light mixing microstructures disposed on the optical film, positions of the light mixing microstructures corresponding to positions of the plurality of light emitting elements; and a plurality of concentrating microstructures correspondingly disposed on the plurality of light mixing microstructures, wherein positions of the plurality of concentrating microstructures correspond to the positions of the plurality of light emitting elements. A liquid crystal display (LCD) device including the backlight module is also provided.

The invention provides an industrial image uniform-illumination processing method comprising: obtaining an industrial image in nonuniform illumination by a camera and subjecting the industrial image to gray processing; and subjecting the gray image to wavelet decomposition to obtain the first high-frequency component and the first low-frequency component of the industrial image; removing the first high-frequency component of the industrial image and subjecting the first low-frequency component of the industrial image to second-time wavelet decomposition, and in the same way, using the eighth low-frequency component of the industrial image as the illumination estimated map of the industrial image; making subtraction of the illumination estimated map and the gray image to obtain a background difference map of the industrial image; and adding the mean values of the background difference map and the gray image to obtain background light-uniform map of the industrial image. The method has good adaptability, and has a good treatment effect for nonuniform illumination in different situations.

The invention discloses a light guide for a contact image sensor. The light guide is utilized to import the light emitted from a LED light bar. The light guide includes a strip-type incident plane and an exit plane. An acute angle is interposed between the strip-type incident plane and the LED light bar at a short side of the LED light bar. The strip-type incident plane has a plurality of micro structures which are used to diffuse the light toward a uniform direction, thereby increasing light utilization efficiency.

The invention relates to the technical field of display and discloses an electroluminescent device, a manufacturing method of the electroluminescent device and a display device. The electroluminescent device comprises a first electrode, a second electrode opposite to the first electrode, and a luminescent layer located between the first electrode and the second electrode. The luminescent layer comprises nanowires and a coating layer, wherein the nanowires are located on the first electrode and distributed in an array mode and is in the first conduction type, the nanometers are coated with the coating layer which is in the second conduction type, and the coating layer is electrically connected with the second electrode. According to the technical scheme, due to the fact that the diameter of the nanowires is only tens of nanometers and is far smaller than the luminescent wavelength, light can directly penetrate through the nanowires to be emitted out, no refraction problem exists basically, light emitted by most light emitting diodes can be taken out, then the luminescent efficiency of the electroluminescent device is greatly improved, and luminance is improved.

The invention discloses a light supplementing lamp, which comprises a lamp and an electric appliance box, wherein the electric appliance box comprises a shell and a ballast arranged in the shell; thelamp is arranged on a crossbeam on the top of a greenhouse; a first cable interface device is mounted on the lamp, and a second cable interface device is arranged on the shell of the electric appliance box; the ballast is connected with the second cable interface device, and the first cable interface device is connected with the second cable interface device through a cable. Correspondingly, the invention further discloses two light supplementing systems. The lamp and the electric appliance box of the light supplement lamp are separately installed. The lamp can be independently installed on the crossbeam, the light supplementing lamp has the advantages of being small in size, light in weight, convenient to adjust the position, so that non-uniform in light supplement is avoided, the consistency of light supplement effects is ensured, the crossbeam can bear the weight of a plurality of lamps, and the reasonable illumination intensity in the greenhouse is ensured.