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Method for designing color filters which improve or modify color vision of human eye, and color filter means designed by method

A technology of color vision and color filter, applied in the field of color filter, can solve the problem of not applying feedback control of the output terminal

Inactive Publication Date: 2007-01-24
蒂博尔·杜豪 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although it is known (see e.g. pages 350-353 of Rodiech's textbook cited above) that a group of ganglion cells compares the signals of the l and m receivers and thus transmits an opposing signal proportional to (l-m) to In the brain, an additional group of ganglion cells compares the signal of the s receptor with the sum of the l and m signals, and thus transmits an opposing signal proportional to (s-(l+m)) to the brain, but makes no attempt to influence as The intensity variation of the opposing signal as a function of wavelength; i.e. no feedback control from the output is applied before correcting for color vision

Method used

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  • Method for designing color filters which improve or modify color vision of human eye, and color filter means designed by method
  • Method for designing color filters which improve or modify color vision of human eye, and color filter means designed by method
  • Method for designing color filters which improve or modify color vision of human eye, and color filter means designed by method

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Embodiment Construction

[0027] Patients with red / green perception inversion (i.e. protanomaly or deuteranomaly) are characterized by a position of the SSF of the l photoreceptor (for protanomaly) or the SSF of the m photoreceptor (for deuteranomaly) relative to the SSF of normal individuals the drift and / or deformed shape, and in both examples the OP 1 The shape of the function is also different from normal. Because most color deficient people are red / green perception inversion, the following invention will discuss how to obtain normal OP 1 . However, it should be noted that the same principle applies to obtaining a normal OP for a tritanomania patient 2 , where the SSF of the s photoreceptor has a positional drift and / or distorted shape. The same principle applies to modifying the color vision of a colorless person with a color deficiency for a specific purpose, i.e. the purpose is to obtain a different OP than a normal person in a predetermined way 1 or OP 2 .

[0028] In order to design the ...

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Abstract

The invention relates to a method for designing color filters which improve or modify color vision of the human eye. According to the invention a desired opponent signal function to be attained is divided by a real opponent signal function characteristic of the eye color vision to be improved or modified, the negative range of the resulting function is replaced by zero, the whole function is normalized to give a spectral transmission function, and, if desired, one or more section(s) of this spectral transmission function is modified. The invention also relates to color filter means designed by the above method.

Description

technical field [0001] The present invention relates to a method for designing color filters that improve or correct human eye color vision. The invention also relates to color filter devices, such as spectacle lenses, contact lenses or intraocular lenses, which may be designed using this method. According to the scheme of the present invention, it can be mainly used to improve the color vision of people with color defects (that is, people with color perversions, usually also called color blindness); however, this scheme is used to correct the color vision of people without color defects. , better results can also be obtained. Background technique [0002] The color vision of the human eye comes from the stimulation of photoreceptors (also called cones), which are present on the retina and are sensitive to three different wavelength regions, namely long-wave (l), medium-wave (m) and short-wave ( s) area (see Stockman, A., Sharpe, L.T.: "The Spectral Sensitivities of the Mi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/10
CPCG02C7/104G02C7/10G02B5/20
Inventor 蒂博尔·杜豪捷尔吉·索洛伊卡塔林·弗卢克
Owner 蒂博尔·杜豪
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