Design method for color blindness auxiliary glasses

A design method and technology of glasses design, applied in the field of visual optics, can solve the problems of confusion, color blindness, invalid color and black gray, and limited effect of color discrimination auxiliary technology.

Inactive Publication Date: 2017-08-18
曹强 +1
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to solve the problem that the existing color recognition auxiliary technology has limited effects, is completely ineffective for color blindness, or will confuse color with black and gray, and proposes a design method for color blindness auxiliary glasses to assist color weakness and color blindness in color recognition

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
  • Design method for color blindness auxiliary glasses
  • Design method for color blindness auxiliary glasses
  • Design method for color blindness auxiliary glasses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0077] Taking a user with normal eyesight (no farsightedness or nearsightedness) wearing color-blind auxiliary glasses as an example, the specific implementation method is as follows:

[0078] 1.1, the known high dispersion and low dispersion materials are heavy lanthanum flint (LaSF9) and fluorine crown (FK51A) optical glass of SCHOTT company respectively, and their refractive indices at characteristic wavelengths are:

[0079] Color, wavelength (nm) red, 650 yellow, 575 green, 530 Bi, 493 Blue 460 Refractive index of LaSF9 1.8432 1.8520 1.8594 1.8673 1.8763 FB Refractive Index 1.4849 1.4869 1.4886 1.4902 1.4920

[0080] Table 1, the refractive index of optical glass at the characteristic wavelength

[0081] 1.2. Make a high-dispersion convex lens and a low-dispersion concave lens to form a compound lens, the method is as follows. Take some D around 10 1 value, use formula (13) to get E 1 ; due to E 1 >0, we know from formula (9...

Embodiment 2

[0097] Taking a specific user with a myopia of 200 degrees wearing color-blindness auxiliary glasses as an example, the specific implementation method is as follows:

[0098] 2.1, with embodiment 1.1.

[0099] 2.2, same as embodiment 1.2, make a high-dispersion concave lens and a low-dispersion convex lens to form a compound lens, the method is as follows. Take some D around -10 1 value, use formula (13) to get E 1 ; due to E 1 Formula (19) is 200 for the degree of myopia (the focal length of myopia glasses is f 0 =-0.5m) users become

[0100]

[0101] Put (22) into the first and third lines of (18) to get and About R A , and bring the results into the critical equations (20) and (21) and obtain two R A value, and take the R that makes the high dispersion condition (6) true A ; Use formula (22) to get R from A Calculation of R B ; Obtain a new lens radian value table for 200 degrees of myopia at last, wherein positive (negative) sign represents convex (concave...

Embodiment 3

[0107] With no hyperopia, myopia (f 0 =∞) and the final optometry result is left eye dispersion D 1 =10, right eye D 1 =5 users wearing color-blindness auxiliary glasses as an example, the specific implementation method is as follows:

[0108] 3.1, with embodiment 1.1 to 1.3, obtain a batch of f 0 =∞ with different D 1 high dispersion lens.

[0109] 3.2. Cut these high dispersion lenses into appropriate sizes to make spectacle lenses. These spectacle lenses can be easily installed on spectacle frames specially used for optometry, and can also be easily disassembled for replacement.

[0110] 3.3, let the left and right lenses of the glasses have the same D 1 , and according to Example 1.5, the optimal value is 10 when the user's eyes D1 are the same.

[0111] 3.4, Keep the left lens of the glasses unchanged, and replace the D of the right lens alone 1 , make the user carry out the color discrimination test and experience feedback according to the invention step 2 (“E 2...

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 a design method for color blindness auxiliary glasses, which belongs to the field of vision optics. The invention aims to solve the problem that the color vision auxiliary technique in the prior art is limited, is completely ineffective for color blindness or cannot distinguish color and black ash color. The color blindness auxiliary glasses comprise a left glasses frame and a right glasses frame, and color blindness auxiliary lenses arranged inside the left glasses frame and the right glasses frame. According to the design method of the invention, color is converted to relative light intensity of a series of sub-images, which is effective for both serious partial tritanopia and color blindness, and the problem that color and black ash color are not easy to distinguish is solved.

Description

technical field [0001] The invention relates to a design method of color-blind auxiliary glasses, belonging to the field of visual optics. Background technique [0002] The human eye's perception of color can be divided into two main steps: physical detection (photosensitivity and nerve information transmission) and psychological perception [Color Matching and Color Discrimination, Vivianne C. Smith and Joel Pokorny, 2003, Elsevier Ltd.]. In the physical perception link, we need to consider a total of 4 types of photoreceptor cells on the retina of the human eye. The L, M and S types of cone cells in the human eye each contain different pigments, so that the three types of cone cells have different sensitivities to light of different wavelengths. The fourth type of rod cells are not sensitive to wavelength, only feel the total intensity of light and play a significant role only in extremely weak light environments. Under light stimulation, the intensity of nerve signals re...

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): G02C7/02G02C7/10
CPCG02C7/024G02C7/10
Inventor 黄博曹强
Owner 曹强
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap