Unlock instant, AI-driven research and patent intelligence for your innovation.

Novel astigmatism degree tester and application method thereof

A technology of astigmatism degree and application method, which is applied in the fields of application, eye testing equipment, medical science, etc., can solve the problems of accelerating myopia and other problems, achieve the effects of convenient use, avoiding mismatching of vision conditions, and reducing labor intensity

Inactive Publication Date: 2016-11-09
李成新 +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, to provide a new type of astigmatism tester, by setting to avoid manual lens replacement and optometrists constantly asking customers to replace the visual target image, improve the efficiency of testing, reduce The labor intensity of the optometrist avoids the mismatch between the degree of glasses and the visual condition, improves the test effect, reduces the risk of accelerating myopia, and realizes the purpose of quickly and intelligently testing the degree of astigmatism

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel astigmatism degree tester and application method thereof
  • Novel astigmatism degree tester and application method thereof
  • Novel astigmatism degree tester and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like Figures 1 to 2Shown is a first embodiment of a novel astigmatism tester and application method of the present invention, the tester includes a controllable shading screen 1, a binocular eyepiece 2, an imaging lens group 4, and a display screen 3 installed in sequence. The tester also includes an electronic control module 5, the controllable shading screen 1 is at least provided with three states of light transmission, light shading and midline slit light transmission, and the controllable shading screen 1 controls the three states through the electronic control module 5. switch; the tester also includes an interactive device for the user to indicate the observed icon, and the electronic control module 5 is electrically connected with the controllable shading screen 1, the display screen 3 and the interactive device; the electronic control module 5 is connected according to the interactive device. The signal is combined with the angle of the midline slit to calcula...

Embodiment 2

[0056] like image 3 Shown is the second embodiment of the astigmatism power tester and application method of the present invention, this embodiment is similar to the first embodiment, the difference is that the tester includes a first reflector 71 and a second reflector 72, The imaging lens group 4 includes two parts, one part of the imaging lens group 4 is located between the display screen 3 and the first mirror 71 , and the other part of the imaging lens group 4 is located between the binocular eyepiece 2 and the second mirror 72 . The imaging lens group 4 includes two parts, a part of the imaging lens group 4 is located between the display screen 3 and the first reflector 71, and another part of the imaging lens group 4 is located between the binocular eyepiece 2 and the second reflector 72, These settings are to cooperate with the above-mentioned extended optical path after adding a reflector, and use secondary imaging to reduce the visual target image displayed on the d...

Embodiment 3

[0058] like Figures 1 to 2 Shown is the third embodiment of the astigmatism power tester and application method of the present invention, this embodiment is similar to Embodiment 1, the difference is that a second controllable Blackout screen1.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of health protection devices and application methods, and particularly relates to a novel astigmatism degree tester and an application method thereof. The tester comprises a controllable shading screen, a binocular microscope, an imaging lens assembly, a display screen, an electronic control module and an interaction device for observing an icon according to indication of a user, wherein the electronic control module is electrically connected with the controllable shading screen and the display screen; the controllable shading screen is provided with at least three states, namely transmittance, shading and centerline crack transmittance, and is controlled by the electronic control module to switch in three states; and the electronic control module is used for calculating the astigmatism degree according to the angle of the centerline clearance with the angle of the centerline clearance. According to the novel astigmatism degree tester and the application method, the problem that the lens is frequently changed manually and an optometrist constantly asks a client questions to change sight mark images can be avoided by means of setting, the testing efficiency is improved, the labor intensity of optometrists can be reduced, the situation that the degree of glasses is not matched with the vision condition can be avoided, the testing effect is improved, the risk of accelerating shortsightedness can be reduced, and the aim of quickly and smartly testing the astigmatism degree can be achieved.

Description

technical field [0001] The invention relates to the technical field of health care devices and application methods, and more specifically, to a novel astigmatism power tester and application method. Background technique [0002] Myopia, hyperopia, pseudomyopia, strabismus and amblyopia are common vision problems among Chinese residents. According to statistics, in 2012, among the total population over 5 years old in my country, the number of patients with myopia and hyperopia was about 500 million, of which the total number of patients with myopia Around 450 million, many of whom are nearsighted have astigmatism. [0003] In order to get the right glasses, a test for astigmatism is necessary. Nowadays, many optical shops have myopia and astigmatism testers, but these testers need to manually change the lenses and adjust the power to see clearly; they also need constant interaction between the user and the optometrist so that the optometrist can change the visual target image...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/036
CPCA61B3/036A61B3/0016
Inventor 李成新陈永松
Owner 李成新