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Optical device for correcting blue and yellow color weakness and blindness, and design method for optical device

A design method, technology of optical devices, applied in the field of color science and medicine, optics

Active Publication Date: 2016-12-07
陈晓冬
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no optical device, such as glasses, that can correct the color perception of the above-mentioned blue-yellow color-blind people, that is, while improving their blue-yellow color resolution, it retains or slightly changes the position of the white point of the user's color vision

Method used

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  • Optical device for correcting blue and yellow color weakness and blindness, and design method for optical device
  • Optical device for correcting blue and yellow color weakness and blindness, and design method for optical device
  • Optical device for correcting blue and yellow color weakness and blindness, and design method for optical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0334] 1. The light body uses CIE D65.

[0335] 2. Parameter selection

[0336] 1) The color perception parameters are selected from the white point displacement and the color gamut area, and the maximum white point displacement is 0.01.

[0337] 2) The optimization goal is to improve the blue-yellow difference by maximizing the color gamut area.

[0338] 3) Manually input the transmission spectra of a series of hypothetical optical devices (OD) into the optical device (OD) design software. The input spectrum has a visible range of 380 nm to 780 nm.

[0339] 4) Optimize and control parameters such as white point displacement and color gamut by using Euclidean distance in a color space with uniform color perception. The displacement constraints for the white point are:

[0340]

[0341] Among them, "WP" is the new white point, and "WP, 0" is the objective white point seen by ordinary people with naked eyes.

[0342] When maximizing the color gamut area, the objective fu...

Embodiment 2

[0396] The absolute shape factor is obtained by calculating the percentage of light waves passing through the lens to the underlying lens.

[0397] Assume that the distance between the two base layers is 0 and the shape and size are the same. At this time, the absolute shape coefficient of the fluorescence is . Therefore, we define the absolute shape factor of fluorescence in this case as 0.5.

[0398] This application can also be calculated by relative fluorescence coefficient.

[0399] The relative fluorescence coefficient is based on comparing the absolute shape factor of ambient light and the absolute shape factor of fluorescence produced by the optical device. In the lens application used, the relative shape factor , where R 12 is the relative shape factor of the fluorescence passing through the optical device to the human eye. This is mainly because fluorescence is non-directional radiation and external light is unidirectional when it is emitted to the human eye ...

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Abstract

The invention discloses a design method for an optical device. Through employing a transmission spectrum design of selecting a coloring agent and the concentration of the coloring agent and carrying out the correction of blue and yellow color weakness and blindness, the method can correct the color perception of a person with the blue and yellow color weakness and blindness, and maintains or slightly changes the position of a color sense white point of a user while improving the blue and yellow color resolution.

Description

technical field [0001] The invention belongs to the fields of optics, colorology and medicine, and in particular relates to an intelligent colorant preparation and optical device design method for a colorant-based optical transmission device to achieve a target absorption or transmission spectrum. It also relates to an optical device design method for thin film based optical devices to achieve a target transmission spectrum. Background technique [0002] As people age, the visual function of the human lens and pupils will gradually decline, so that the white point of color vision will tend to be yellow, eventually resulting in blue-yellow color blindness. For example, among middle-aged and elderly people, there are a large number of blue-yellow color confusions due to the continuous change of this color vision, that is, blue-yellow color blindness. The nature of this blue-yellow color blindness formed with aging in the later stage is similar to hereditary red-green color bl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B27/00A61B3/06A61F9/00
CPCA61B3/066A61F9/00G02B27/0012
Inventor 陈昊柯南瓦伦丁
Owner 陈晓冬
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