10 results about "Planetarium" patented technology

The LED panel has multiple LED pixel units arranged in a row. Each LED pixel unit has: a normal element, including a red LED element, a green LED element, and a blue LED element; and a low-brightness element for outputting a brightness lower than the minimum brightness of the normal element.

An optical planetarium includes a projector configured to project images of stars; a diurnal-axis support mechanism configured to allow the projector to rotate about a diurnal axis; a latitude-axis support mechanism configured to allow the projector to rotate about a latitude axis that is orthogonal to the diurnal axis; an azimuth-axis support mechanism configured to allow the projector to rotate about an azimuth axis that is set vertically; and a latitude-axis inclination angle changing mechanism configured to allow an angle between the latitude axis and a horizontal plane to be changed within a predetermined range.

The utility model provides an earth around-the-sun revolution instrument with an invariable earth axis direction. The earth around-the-sun revolution instrument comprises a globe, an ecliptic turntable, a central shaft body and a perpendicular incidence plane disc, the globe comprises an earth model, an earth axis and a base. The base is rotationally connected with the ecliptic turntable through a bearing piece and is in transmission connection with the central shaft body through a transmission belt; the globe and the ecliptic turntable can be driven by external force to do revolution motion along the central shaft body; the direct plane disc is used for simulating a direct point of the sun to the globe and is arranged at the top of the central shaft body; when the globe revolves, the direction of the earth axis is not changed, and the perpendicular incidence point reciprocates between the south and north return lines of the earth model. The terrestrial globe is in transmission connection with the central shaft body through a transmission belt to form a planetary belt transmission mechanism, so that the revolution motion is ensured, the earth axis direction is maintained to be constant, the knowledge error of earth axis deviation during revolution of a traditional teaching aid is corrected, and the annual movement rule of a direct solar radiation point between south and north return lines is accurately reproduced.

To eliminate a phenomenon that the light of the high luminance part of a video interferes with another dark part and the whole contrast is lowered in a stereoscopic screen in a dome shape or the like.SOLUTION: In a case where an image in which a bright portion and a dark portion are present is projected on a curved surface of a dome-shaped screen seen in a planetarium, an exhibition image, or the like or a projection screen disposed to face and be close to each other, the projection screens interfere with each other and the contrast is extremely lowered, but the screen of the present application has a three dimensional shape composed of a large number of planes, and thus mutual interference cannot physically occur. Therefore, even in the case of an image having a large difference between light and dark, a decrease in contrast in which the luminance of a bright portion interferes with a dark portion does not occur as in the case of a normal flat screen. Further, since a space is provided between the large number of planes, an acoustic problem such as reverberation occurring in a conventional dome screen or the like hardly occurs, and air conditioning is easily performed. In addition, the stereoscreen of the present application connected by the deformable member is foldable.SELECTED DRAWING: Figure 8

The planetarium comprises a platform, a time display disc, a hollow rod, an annular ball seat and a hollow ball body which are arranged from bottom to top, the platform is rotationally connected with the time display disc, the circle center of the top of the time display disc is fixed with the bottom end of the hollow rod, the annular ball seat is sleeved on the hollow rod, the hollow ball body is sleeved on the hollow rod, and a plurality of astronomical images are arranged on the hollow ball body; and a spherical LED lamp bead is arranged at the top end of the hollow rod. The astronomical image projector has the advantages of being small in size, convenient to move and capable of actively learning at any time; the astronomical image simulating the whole year of the northern hemisphere is projected to an indoor wall, different constellations and positions are identified at any time, the knowledge of astronomical sight movement of the astronomical image and the knowledge of the Yanghua system are known, star magnitude comparison is felt, and popularization and use are facilitated.

1. Name of the product in this design: Digital Planetarium (Hun Tian Xin Yun). 2. Intended use of this design: for use in buildings. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key features: the front view. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

To suppress occurrence of a phenomenon that an object in a video image of a planetarium looks unnatural.SOLUTION: A planetarium system includes a storage unit that stores a video including one or more objects 260, a plurality of light sources 130 arranged at uniform intervals on a dome, and one or more control units that control light emission of the plurality of light sources 130 to reproduce the video. The one or more control units determine whether or not a certain object 260 included in the one or more objects 260 is a predetermined object 260 and is being moved, and correct a display form of the certain object 260 on the basis of the fact that the certain object 260 is the predetermined object 260 being moved.SELECTED DRAWING: Figure 2

The application discloses a planet carrier manufacturing device and relates to the technical field of planet carrier manufacturing. The device comprises a box body, an automatic light scanning mechanism and a positioning unit arranged on the box body. The positioning unit comprises a positioning plate, a plurality of vacuum adsorbers are arranged on the positioning plate, each vacuum adsorber is movably connected to the positioning plate, and the vacuum adsorbers are driven to be adsorbed on different positions of a planet carrier. The vacuum adsorbers are driven to move to the adsorption positions, the planet carrier is placed on the vacuum adsorbers, the planet carrier is adsorbed and positioned by the vacuum adsorbers, the vacuum adsorbers on the positioning unit can position planet carriers of various types through movement of the vacuum adsorbers, and the probability of breakage (movement or deformation) of the planet carrier during positioning can be effectively reduced through positioning of the planet carrier by the vacuum adsorbers.

The invention discloses a spherical screen steel structure connecting device, and belongs to the technical field of building steel structure and display equipment installation. The device comprises a main structure connecting seat, a universal adjusting mechanism, a screen unit connector and a spherical hinge connecting rod. The universal adjusting mechanism achieves pitching and horizontal rotation adjustment through a two-stage hinge shaft, and the spherical hinge connecting rod achieves space fine adjustment through a spherical hinge joint and is finally fixed to the screen supporting unit through a screen unit connector. Through the multi-stage non-rigid connection design, rapid, accurate and stress-free installation of the dome screen unit is achieved, the problems that a traditional connection mode is poor in adaptability, complex in installation, prone to stress transmission and the like are effectively solved, and the dome screen unit is particularly suitable for occasions such as large-scale dome cinema and astronomical venues which have high requirements for curved surface precision and installation and maintenance.

This invention belongs to the field of grinding and polishing technology for optical surfaces on lenses, specifically a processing method and apparatus for a planetarium tire lens, including a grinding machine, a workpiece stage, a positioning fixture, a grinding table, a grinding wheel, and a control system; it also includes a grinding cover, which is installed on the workpiece stage, and the positioning fixture is located inside the grinding cover. The grinding cover is arc-shaped and has nozzles evenly arranged on both inner walls, with the nozzles tilted towards the middle inner wall of the grinding cover; the grinding table controls the grinding wheel to rotate and contact the blank to begin grinding and polishing, and the nozzles inside the grinding cover spray grinding or cleaning fluid at an angle to remove the grinding debris on the blank, improving the cleanliness of the blank surface; and in conjunction with the rotation of the blank, centrifugal force is generated, and the solution on the blank is thrown away by the centrifugal force, and the fine grinding debris attached to the blank surface is washed away by the solution and the centrifugal force, reducing impurities on the blank surface and improving the grinding quality.