7results about How to "Prevent myopia" patented technology

The intelligent myopia-preventing desk comprises a desk body, stand columns are arranged at the two ends of the upper surface of the desk body, mounting grooves are formed in the corresponding positions of the inner walls of the two stand columns, mounting beams are arranged in the mounting grooves, sliding grooves are formed in the mounting beams, movable blocks are arranged in the sliding grooves in a sliding mode, and the movable blocks are arranged in the sliding grooves in a sliding mode. A connecting rod is arranged at the front end of the movable block, a limiting device is arranged at the end of the connecting rod, the limiting device can be used for limiting the head position of a user, the situation that the distance between the head of the user and a table top is too close is avoided, the eye using distance can be guaranteed, and myopia can be prevented; the height of the limiter can be adjusted, so that the limiter can be conveniently used by people with different heights, and after the limiter is used, the limiter can be folded and stored to avoid occupying the desktop space.

The invention provides a self-adaptive target grabbing sequence determination method, and relates to the technical field of data processing. The method comprises the following steps: segmenting current three-dimensional point cloud data of a target unloading area to generate pose information of a to-be-grabbed object; performing multi-dimensional quantitative evaluation on each to-be-grabbed object based on the pose information to generate a feature score; fusing the feature score with the pose information of the to-be-grabbed object, and constructing a comprehensive state vector at the current moment; inputting the comprehensive state vector into a pre-trained reinforcement learning strategy network to obtain an accumulated return value of each to-be-grabbed object, and selecting the to-be-grabbed object with the maximum accumulated return value as a current grabbed object to be grabbed; and the steps are repeated until the object to be grabbed does not exist in the target unloading area, multi-dimensional physical and geometric characteristics can be comprehensively considered, and therefore the overall efficiency and safety of unloading operation are improved.

The application belongs to the technical field of lighting lamps, and particularly relates to a three-dimensional full-space wireless sliding table lamp with anti-dazzle and eye protection, which comprises a supporting frame, a lifting mechanism, a horizontal adjusting mechanism, a wireless sliding connecting assembly, a balance structure and a bidirectional light-emitting anti-dazzle assembly. A placing seat is fixedly connected to the bottom of the supporting frame, and a first sliding groove is formed in the vertical direction in the middle of the supporting frame. The lifting mechanism comprises an adjusting plate arranged at the end of a fixed cylinder, and a positioning rail is fixedly connected to the outer wall of the adjusting plate. The adjusting plate is clamped on the inner wall of the first sliding groove through the positioning rail. The LED upper lamp plate with a front inclination angle is arranged to effectively supplement the background light of the working environment. The bidirectional light-emitting mode significantly reduces the brightness ratio between the center of the working area and the surrounding environment, reduces the light-dark contrast, relieves the visual fatigue caused by frequent pupil adjustment of the human eye, and prevents myopia from the optical and physical aspects.

The utility model discloses a kind of feathered frame A of badminton, including feathering rod (A2), combination part (4), base (1), feathering rod, combination part, base are by one whole of one-time forming of mould composition, every root of feathering rod (A2) is single independent. The height of feathering rod A2 is 7mm-14mm. The utility model also discloses a kind of feathered frame B of badminton, including feathering rod (B2), combination part (4), base (1), feathering rod, combination part, base are by one whole of one-time forming of mould composition, every root of feathering rod (B2) is single independent. The height of feathering rod B2 is 20mm-24mm. Feathered frame A, feathered frame B can make middle and high grade feather piece with low grade feather and natural defective feather, then make badminton with middle and high grade feather piece.

The utility model belongs to the field of optical display, and particularly relates to a table type optical system, which comprises a first part, a second part and a third part, the first reflecting mirror is arranged opposite to the light source; the second part is arranged opposite to the first part, and the second part comprises a light splitting module which is arranged opposite to the first reflecting mirror; the second reflecting mirror is arranged opposite to the light splitting module, and the second reflecting mirror is provided with a concave surface far away from the light splitting module; light rays emitted by the light source enter the first reflecting mirror, enter the light splitting mirror after being reflected and then are emitted to the second reflecting mirror through reflection of the light splitting module, and the light rays reflected by the second reflecting mirror penetrate through the light splitting module in a transmission mode to form a first image with a preset focal plane depth. The range of the preset focal plane depth is from-infinity mm to-1000 mm and from 1000 mm to + infinity mm. Through the arrangement, interference during watching of the first image is avoided.

The utility model relates to the technical field of desk, especially a desk with telescopic storage drawer. The utility model provides a desk with telescopic storage drawer, including desk body and storage bin, the inside of desk body is provided with storage bin, still including slide rail, limit stop, guide rail, connecting block, placing box and screw rod, the inside both sides of desk body all are installed with slide rail, the limit stop is jointly and severally slidably arranged in two slide rails, the both sides of limit stop bottom all are fixedly connected with guide rail, the connecting block is slidably arranged on the guide rail, two connecting blocks are jointly and severally fixedly connected with placing box, and the placing box is slidably connected with the limit stop, and the limit stop bottom left side is rotatably provided with screw rod. Through rotating screw rod, drive the connecting block of left side to move down, and the connecting block of right side synchronous sliding along the guide rod, make placing box move down, cooperate with the limit stop, expand the storage space of placing box, realize the maximum storage space, to this end satisfies different use demand.

The present invention discloses a posterior sclera cross-linking device and a method for using the same, wherein the posterior sclera cross-linking device comprises an air bag, including a contracted state and an expanded state after inflation; a connecting tube, one end of which is connected to the air bag for providing gas to the air bag; an optical fiber, which is arranged along the connecting tube, and the output end of the optical fiber is arranged at the position of the air bag. The present invention has the advantages of easy operation and low damage.