Opthalmological optical element and method for constructing opthalmological optical element

A technology of optical elements and diffractive optical elements, applied in the field of ophthalmic optical elements, can solve problems such as chromatic aberration, and achieve the effect of reducing material and weight

Active Publication Date: 2018-09-28
TOOZ TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, the disadvantage of this approach is that chromatic aberrations, especially lateral chromatic aberrations, continue to exist

Method used

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  • Opthalmological optical element and method for constructing opthalmological optical element

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Embodiment Construction

[0101] figure 1 A cross-sectional illustration of an ophthalmic optical element 1 , eg a spectacle lens, according to a first embodiment is shown. The ophthalmic optical element 1 has: a first refractive optical substrate 10, the first refractive optical substrate has a positive or negative first power; a first diffractive optical element (DOE) 21, the first diffractive optical element having a second optical power; and a second diffractive optical element 22 having a third optical power, wherein the first diffractive optical element 21 and the second diffractive optical element 22 have opposite optical powers, And wherein the first diffractive optical element 21 and the second diffractive optical element 22 interact in an at least partially achromatic manner. The first diffractive optical element 21 and the second diffractive optical element 22 may have approximately the same power in absolute value, but with opposite signs, and thus the first diffractive optical element 21...

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Abstract

The present invention relates to an ophthalmological optical element (1), in particular a spectacle lens, comprising: a first refractive optical substrate (10) which has a positive or negative first optical power; a first diffractive optical element (21) which has a second optical power; a second diffractive optical element (22) which has a third optical power, wherein the first diffractive optical element (21) and the second diffractive optical element (22) have an opposing optical power, and wherein the first diffractive optical element (21) and the second diffractive optical element (22) interact at least partially achromatically. Furthermore, the present invention relates to a method for constructing an ophthalmological optical element of this type, and spectacles and a head-mounted display device comprising an ophthalmological optical element of this type.

Description

field of invention [0001] The present application relates to an ophthalmic optical element, in particular a spectacle lens, comprising a first refractive optical substrate and first and second diffractive optical elements. Furthermore, the present application relates in particular to a computer-implemented method for designing an ophthalmic optical element, a pair of spectacles and a head-mounted display device (head-mounted display) having such an ophthalmic optical element. Background technique [0002] Traditionally, prescription eyeglasses have been produced according to decades of tried and tested methods. Here, the corresponding necessary vision correction is set by selecting the anterior object side and posterior eye side curvature radii of the spectacle lens. For aesthetic and production-technical reasons, the object-side outer radius is usually produced spherical, where it assumes a certain predetermined value, which can be gleaned from a so-called preferred radius...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02C7/02G02B27/42
CPCG02B27/4211G02B27/4272G02C2202/20G02C2202/22G02B2027/0178G02B27/0172G02C7/02
Inventor 汉斯-于尔根·杜布斯切尔卡斯顿·林迪希
Owner TOOZ TECH GMBH
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