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WO2024013405A1 - Procédure de réduction de l'aberration chromatique latérale dans des écrans par visualisation à travers des lentilles et dispositif pour une telle procédure - Google Patents

Procédure de réduction de l'aberration chromatique latérale dans des écrans par visualisation à travers des lentilles et dispositif pour une telle procédure Download PDF

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Publication number
WO2024013405A1
WO2024013405A1 PCT/ES2022/070451 ES2022070451W WO2024013405A1 WO 2024013405 A1 WO2024013405 A1 WO 2024013405A1 ES 2022070451 W ES2022070451 W ES 2022070451W WO 2024013405 A1 WO2024013405 A1 WO 2024013405A1
Authority
WO
WIPO (PCT)
Prior art keywords
screen
lenses
chromatic aberration
lateral chromatic
viewing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/ES2022/070451
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English (en)
Spanish (es)
Inventor
Julio Manuel VILLAVERDE ROSENDE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jj Gestion Integral SL
Original Assignee
Jj Gestion Integral SL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jj Gestion Integral SL filed Critical Jj Gestion Integral SL
Priority to PCT/ES2022/070451 priority Critical patent/WO2024013405A1/fr
Publication of WO2024013405A1 publication Critical patent/WO2024013405A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60—Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/61—Noise processing, e.g. detecting, correcting, reducing or removing noise the noise originating only from the lens unit, e.g. flare, shading, vignetting or "cos4"
    • H04N25/611—Correction of chromatic aberration

Definitions

  • the present invention relates to a procedure for reducing lateral chromatic aberration on screen by viewing through lenses, and to the device and computer program for implementing said procedure.
  • Transverse chromatic aberration occurs when, as a light beam passes through a diopter (a change of medium with a different refractive index), it decomposes into its base colors, generating a halo of colors around the focused images. This effect causes a blur that affects visual acuity; And not only that, but it also affects more in oblique gazes, and is variable depending on the graduation of the obliquity of the gaze and the Abbe number of the lens construction material.
  • Transverse - or lateral - chromatic aberration occurs on the sides, therefore displaced from the center of the visual field, and is independent of axial chromatic aberration. It may exist even if the other aberrations have been eliminated. This aberration is greater with higher lens power, and also increases when looking away from the optical axis and outside the so-called paraxial optics (very small angles).
  • the procedure for reducing lateral chromatic aberration on the screen by viewing through lenses of the invention comprises generating, in the images displayed on the screen, and through an image processor, a color shift (that is, a chromatic aberration induced lateral), of equal value but opposite direction to the lateral chromatic aberration generated by the lenses.
  • a color shift that is, a chromatic aberration induced lateral
  • this compensation of the lateral chromatic aberration is generated in the non-centered areas of the screen, so that the user's visual perception will be without aberration.
  • the image processor will identify the different basic colors present in the image and present them laterally out of phase to a greater or lesser extent depending on the lateral aberration generated by the lens, which must be known to be compensated.
  • the correction When used on screens associated with digital devices where high resolution is read and required, the correction is only induced during the correction, not affecting other objects when looking through the lenses, which normally will not require high resolution or definition.
  • Viewing quality is optimized and the profitability of high-resolution digital screens is increased.
  • Figure 1 Shows a schematic view in horizontal section of the transmission of a color image generated on a screen, and its passage through a lens, where its decomposition into light beams of the basic colors occurs, appreciating how each beam corresponding to each color reaches the retina in different positions, more displaced from each other the greater the laterality
  • Figure 2. Shows a front view of an image on the screen under normal conditions, without offsetting basic colors.
  • Figure 3. Shows a view similar to that of Figure 1, applying the induced aberration on the screen thanks to the method of the invention, so that the convergence of the light beams of the different colors of each point in that section is achieved. of the screen at the same point on the retina, compensating for the lateral chromatic aberration generated by the lens
  • Figure 4.- Shows a view similar to that of Figure 2 applying the induced aberration on the screen thanks to the method of the invention.
  • the procedure for reducing the lateral chromatic aberration on the screen (1) by viewing through lenses (2) of the invention comprises the generation of the images (3) displayed on the screen (1), through a data processor. images (4), of a color shift or induced lateral chromatic aberration, of equal value and in the opposite direction to the lateral chromatic aberration generated by the lenses (2).
  • Figure 1 it can be seen how, after passing through the lens (2), the light beams corresponding to the basic colors (A, A', A”) of the image shown on the screen under the conditions seen in Figure 2 are out of phase, and reach the retina (100) ungrouped, generating the lateral chromatic aberration that the lens user will appreciate, while in Figure 4 you can see how the image is shown on the screen with the basic colors out of phase (B, B',. B"), so that when passing through the lens they reach the retina (100) in groups, disappearing the chromatic aberration as seen in fig. 3.
  • the image processor (4) comprises a color shift degree adjuster module (40), which will allow it to be adjusted during use.
  • Said adjuster module (40) can be associated with a cursor (45) for manual adjustment and/or with an identification reader (41) for automatic adjustment, for example where the identification reader (41) comprises a camera (41 a). and a QR code interpretation module (41 b) associated with the camera (41a), so that carrying the prescription and characteristics of the lens in a simple QR, the processor, thanks to an application implemented to act on the images, do an automatic adjustment.
  • the invention also encompasses the program adapted to execute the procedure on any processor.
  • the invention also comprises a device (10) that comprises an image processor (4), which comprises an input (42) of image or images to be processed, an identification module of basic colors (43) in the images introduced through the input (42), a displacement module (44) for the position of the pixels based on the basic colors, an adjuster module (40) associated with the displacement module (44) to determine the amplitude of the displacement in each area of the image (a displacement calculation module), and an actuation element associated with the adjuster module (14).
  • the actuation element will ideally comprise a manual adjustment cursor (45) represented on the screen (1) and/or a camera (41a) and a QR code interpretation module (41b) for automatic adjustment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Eye Examination Apparatus (AREA)

Abstract

Procédure pour la réduction de l'aberration chromatique latérale dans un écran (1) par visualisation à travers des lentilles (2) qui comprend la génération dans les images présentées à l'écran (1), à travers un processeur d'images (4), d'un décalage des couleurs, de valeur égale et en sens inverse de l'aberration chromatique générée par les lentilles (2).
PCT/ES2022/070451 2022-07-13 2022-07-13 Procédure de réduction de l'aberration chromatique latérale dans des écrans par visualisation à travers des lentilles et dispositif pour une telle procédure Ceased WO2024013405A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/ES2022/070451 WO2024013405A1 (fr) 2022-07-13 2022-07-13 Procédure de réduction de l'aberration chromatique latérale dans des écrans par visualisation à travers des lentilles et dispositif pour une telle procédure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/ES2022/070451 WO2024013405A1 (fr) 2022-07-13 2022-07-13 Procédure de réduction de l'aberration chromatique latérale dans des écrans par visualisation à travers des lentilles et dispositif pour une telle procédure

Publications (1)

Publication Number Publication Date
WO2024013405A1 true WO2024013405A1 (fr) 2024-01-18

Family

ID=89536064

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2022/070451 Ceased WO2024013405A1 (fr) 2022-07-13 2022-07-13 Procédure de réduction de l'aberration chromatique latérale dans des écrans par visualisation à travers des lentilles et dispositif pour une telle procédure

Country Status (1)

Country Link
WO (1) WO2024013405A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007061A1 (fr) * 2010-07-16 2012-01-19 Robert Bosch Gmbh Procédé pour la détection et la correction d'une aberration chromatique latérale
ES2577860A2 (es) * 2013-03-12 2016-07-19 Steven P. Lee Determinación computerizada de refracción y astigmatismo
US20170302825A1 (en) * 2016-04-18 2017-10-19 Canon Kabushiki Kaisha Image processing apparatus, image capturing apparatus, lens apparatus, image processing method, and non-transitory computer-readable storage medium
CN111242863A (zh) * 2020-01-09 2020-06-05 上海酷芯微电子有限公司 基于图像处理器实现的消除镜头横向色差的方法及介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012007061A1 (fr) * 2010-07-16 2012-01-19 Robert Bosch Gmbh Procédé pour la détection et la correction d'une aberration chromatique latérale
ES2577860A2 (es) * 2013-03-12 2016-07-19 Steven P. Lee Determinación computerizada de refracción y astigmatismo
US20170302825A1 (en) * 2016-04-18 2017-10-19 Canon Kabushiki Kaisha Image processing apparatus, image capturing apparatus, lens apparatus, image processing method, and non-transitory computer-readable storage medium
CN111242863A (zh) * 2020-01-09 2020-06-05 上海酷芯微电子有限公司 基于图像处理器实现的消除镜头横向色差的方法及介质

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