4results about How to "Prevent elongation" patented technology

The utility model belongs to optical device technical field, concretely relates to a kind of lens and glasses, the lens includes: mirror surface, the mirror surface is provided with the multiple paths of fitting hyperbolic space, and path distribution is more dense at the area closer to the edge of lens;Microstructure includes multiple micro-lenses distributed according to predetermined rule;The distribution of the microstructure makes that the contrast of eye-in image adapts to the non-uniform distribution of visual influence cell in retina, including the microstructure is along the multiple paths setting;Or setting in the area surrounded by path;The power of the micro-lens gradually increases along the radial outward direction of lens center direction.By the above setting to improve amblyopia while improving experience.

This disclosure pertains to the field of optical devices, specifically relating to eyeglasses, comprising: a frame including a track extending in a predetermined direction; a first stimulation module slidably connected to the track for sliding along the track; the first stimulation module having a first defocus stimulation region; and a second stimulation module slidably connected to the track for sliding along the track; the second stimulation module having a second defocus stimulation region. When the first and second stimulation modules are installed in the same side of the frame, a blank area is formed between the first and second defocus stimulation regions. The first and second stimulation regions correspond to the peripheral field of vision of the human eye, and the blank area corresponds to the central field of vision of the human eye. By sliding the first and second stimulation modules on the track, the positions of the first and second defocus stimulation regions in the field of vision of the human eye are changed, thereby changing the position and extent of the blank area. This is intended to inhibit axial elongation and control the degree of myopia.

This disclosure belongs to the field of image display, and specifically relates to an image display method, system, and apparatus. The image display method includes acquiring first color values ​​of predetermined pixels in a presented image. The first color values ​​include attribute values ​​of each primary color based on additive color mixing, wherein each primary color includes at least a first primary color and a second primary color, and the wavelength of the first primary color is at least 50 nm greater than the wavelength of the second primary color. The method also involves adjusting the attribute values ​​of each primary color in the first color values ​​according to an intensity adjustment ratio to obtain second color values ​​for presentation. The difference between the attribute values ​​of the first and second primary colors in the second color values ​​is greater than the difference between the attribute values ​​of the first and second primary colors in the first color values. By presenting the image, axial chromatic aberration is created to generate myopic defocus, thereby suppressing axial elongation of the eye.

Provided is a balloon for a balloon catheter that prevents kinking, buckling, and elongation in the long axis direction of the balloon, and that is easy to handle. A balloon for a balloon catheter (2) has a balloon main body (20) that has an expansion portion (20e), a distal side sleeve portion (25) having a fixed portion (25f) fixed to a shaft (3), and a proximal side sleeve portion (21), and has a reinforcing portion (60) on a portion of the inner surface of the distal side sleeve portion (25) on the proximal side of the distal end of the fixed portion (25f) and in the circumferential direction of the distal side sleeve portion (25), and does not have a reinforcing portion (60) on the inner surface of the proximal side sleeve portion (21).