2 results about "Vision problem" patented technology

The utility model discloses a positive pressure type air respirator myopia mask with an alarm function, which comprises a positive pressure type air respirator mask body, and a convex positive pressure type air respirator mask transparent observation window is arranged at one end of the positive pressure type air respirator mask body. The positive pressure type air respirator mask comprises a positive pressure type air respirator mask body, a positive pressure type air respirator mask transparent observation window is arranged on the positive pressure type air respirator mask body, a near-sighted glass support is arranged in the positive pressure type air respirator mask transparent observation window, the positive pressure type air respirator mask body is further connected with a positive pressure type air respirator mask breathing connector, a detection device is embedded in the positive pressure type air respirator mask breathing connector, and a power module is arranged in the detection device. According to the utility model, the vision problem of a myopia person wearing the mask can be solved, the content of oxygen and sulfur hexafluoride in an operation environment can be monitored in real time, and the safety and the treatment efficiency of the operator are improved.

A rotating disc type human visual system training device, which stimulates and induces visual system coordinated regulation to improve vision problems by dynamically changing the focal depth of eye imaging. The scheme is that the training device comprises a shell, a rotating disc, a light blocking disc and a rotating disc control mechanism. A set of training holes or training slits are uniformly arranged on the same circumference of the light blocking disc. The shell is provided with an observation hole. The rotating disc and the light blocking disc are driven to rotate by the rotating disc control mechanism. The observation hole on the shell is overlapped with the training hole or the training slit. The focal depth of eye imaging is dynamically changed by switching different sizes of the training hole or the training slit. The visual system training purpose is achieved. The beneficial effects are that the structure is simple, the cost is low, there is no side effect, the change gradient, the frequency and the combination form of the training hole or the training slit of the change of the focal depth of eye imaging are changed, the multi-dimensional stimulation and the induction of the visual system coordinated regulation function are realized, and the effect of improving the visual system coordinated regulation ability is achieved.