8results about How to "Uniform brightness distribution" patented technology

This utility model discloses a turn signal assembly with uniform brightness and a high safety factor, including a turn signal cup and a front turn signal light guide plate. The turn signal cup has a turn signal hole for mounting the turn signal. The turn signal light guide plate has a main light guide plate facing the turn signal hole, an inner light guide plate and an outer light guide plate, located on the left and right sides of the main light guide plate and bent inwards respectively. The angle between the inner light guide plate and the main light guide plate is acute, and the angle between the outer light guide plate and the main light guide plate is obtuse. A light guide ridge is provided on the inner side of the turn signal light guide plate, and an inwardly recessed stepped portion is provided on the bottom of the outer side. This utility model's main light guide plate, in conjunction with the inner acute-angled and outer obtuse-angled light guide plate portions, expands the light diffusion range through refraction at different angles, avoiding the central bright spot or edge dark area of ​​traditional turn signals. The horizontal ridges of the main light guide plate work in conjunction with the gradually widening ridges of the inner / outer light guide plates, ensuring that the light is emitted uniformly after multiple refractions, resulting in a more balanced brightness distribution and improved signal recognition.

The utility model provides an LED (light-emitting diode) fish gathering lamp, which belongs to the technical field of illumination and comprises a lamp holder and a light-emitting component, the lamp holder comprises a first plane and a second plane, the first plane and the second plane are connected to form a bending angle, the light-emitting component comprises a first lamp group and a second lamp group, and the power of the first lamp group is smaller than that of the second lamp group. In order to achieve a better fish gathering effect, a plurality of fish gathering lamps are usually used in a combined mode, and due to the fact that the first lamp sets on the two sides of each fish gathering lamp adopt the LED light sources with relatively small power, a weak-illumination area, namely a so-called dark area, can be formed between the lamps when the fish gathering lamps are independently used, however, in the design, the LED light sources are used in a combined mode. The small-power first lamp sets on the side edges can form a light ray superposition effect between every two adjacent fish gathering lamps, so that the problem of insufficient illumination in a dark area is solved, the brightness distribution of the whole irradiation area is more uniform, and the fish gathering efficiency is improved.

The invention discloses an in-cabin looking-around confocal lens and a camera device and a driving tool with the same, the lens comprises a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from an object side to an image side, and the following conditions are met: 13.14 lt; fOV / Ym / 2lt; 24.36, FOV is the angle of view of the lens, and Ym is the image height of the lens corresponding to the FOV. According to the invention, large-view-field coverage is realized, and the consistency of visible light and infrared imaging is considered at the same time; it is ensured that the lens can shoot high-definition pictures at the high temperature of + 125 DEG C and the low temperature of-40 DEG C; the imaging resolution is high, the MTF level is kept excellent in a full-view-field range, and center and edge imaging is balanced; the aberration correction capability is outstanding, the chromatic aberration control is excellent, the chromatic aberration is stably controlled within 2pixel, and the purple edge inhibition effect is remarkable; and when the field angle is 80 degrees, the relative illumination is higher than 50%, and the image brightness distribution is uniform.

A light emitting module includes a light guide, a first light source, and a second light source. The light guide includes a first face, a second face oriented not parallel to the first face, a third face connected between the first face and the second face, and a light-emitting surface larger than each of the first face, the second face, and the third face. The first light source faces the first face. No light source is positioned between the first light source and an edge of the first face. The second light source faces the third face. No light source is positioned between the second light source and an edge of the third face. A distance from the second light source to the edge of the third face is greater than a distance from the first light source to the edge of the first face.

The present application relates to a method, system and non-transitory computer readable recording medium for correcting luminance of a spherical image. According to an aspect of the present application, there is provided a method for correcting luminance of a spherical image, comprising: calculating a photographing luminance distribution of a region corresponding to a sphere as a physical quantity measurement object in a plurality of images photographed with respect to the sphere; and correcting the photographing luminance distribution of the region corresponding to the sphere in at least one of the plurality of images with reference to a reference luminance distribution.

The application relates to the technical field of image processing, in particular to a clinical ultrasonic image auxiliary screening system based on deep learning. The system comprises an ultrasonic image preprocessing module, a lesion region segmentation module, an image lesion labeling module and a lesion auxiliary screening module, can acquire clinical ultrasonic images and carries out gray processing and neighborhood gray balance processing, so as to generate clinical ultrasonic balanced images; carries out pixel normalization and lesion region segmentation based on tissue boundary blur on the clinical ultrasonic balanced images, so as to generate clinical ultrasonic image lesion region blocks; carries out image lesion labeling through the clinical ultrasonic image lesion region blocks, so as to generate a clinical ultrasonic lesion labeling image set; constructs an image lesion auxiliary screening model and carries out lesion auxiliary screening, so as to output the lesion position, lesion type and lesion severity corresponding to the lesion existing on the clinical ultrasonic image. The application can realize accurate analysis of clinical ultrasonic images, so as to assist in efficiently completing lesion screening.

Embodiments of the present application disclose a brightness compensation method and device, a storage medium and a brightness compensation system. The brightness compensation method comprises: closing a brightness compensation function of a to-be-compensated screen, calculating and storing a brightness compensation parameter of the to-be-compensated screen; opening the brightness compensation function of the to-be-compensated screen, repeatedly calculating and storing the brightness compensation parameter of the to-be-compensated screen until a display effect of the to-be-compensated screen meets a preset first condition; after the display effect of the to-be-compensated screen meets the preset first condition, and in a case where the brightness compensation function of the to-be-compensated screen is opened, performing at least once the operation of calculating and storing the brightness compensation parameter of the to-be-compensated screen, so that the to-be-compensated screen performs brightness compensation according to the last stored brightness compensation parameter.

The utility model relates to an 8-shaped stroke segment nixie tube and display equipment. The 8-shaped pen section nixie tube comprises a reflecting plate, a light guide plate and a light guide plate, wherein the reflecting plate is provided with a 8-shaped pen section light-emitting hole, and a containing groove is formed below the reflecting plate; the light-transmitting belt film is attached to the upper portion of the reflecting plate and is a transparent or semitransparent whole-body film; the light source assembly is arranged in the containing groove. The technical problems that a traditional nixie tube is difficult to give consideration to complex graph and compact 8-shaped stroke segment display, and the attractiveness is limited are solved.