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Method and apparatus for measuring optical lenses for various wearing situations of users

An optical lens and lens technology, which is applied in the direction of testing eye equipment, testing optical performance, using optical devices, etc., can solve problems such as deviation of effect

Active Publication Date: 2022-07-08
CARL ZEISS VISION INT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The downside is that ISO VP can deviate from how a pair of glasses will look when worn (also known as wearing vertex power or wearing value)

Method used

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  • Method and apparatus for measuring optical lenses for various wearing situations of users
  • Method and apparatus for measuring optical lenses for various wearing situations of users
  • Method and apparatus for measuring optical lenses for various wearing situations of users

Examples

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Effect test

Embodiment Construction

[0066] figure 1 The device 10 shown in is used for determining the optical effect of an optical lens 100, in particular a spectacle lens. The apparatus 10 includes a display device 20 configured to display a test structure 21 . By way of example, this display device can be a screen or a display and can display different test structures.

[0067]The apparatus 10 further includes an image capture device 30 configured to capture image data of the test structure 21 from a plurality of viewpoints 31, 31', 31" through the imaging beam path 32 through the lens 100. In one aspect , the imaging beam paths from a plurality of different viewpoints can be recorded successively by a camera arranged in a plurality of different positions successively. However, preferably a plurality of cameras are provided in order to capture the image data in parallel. It should be understood that , a hybrid form may also be provided. By way of example, the image capture device 30 may include a first came...

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Abstract

The invention relates to the field of ophthalmic optics, in particular to a device (10) for measuring the optical effect of an optical lens (100), in particular a spectacle lens, arranged in a measurement volume (200), the device comprising a display system (20) , the display system is configured to display a test structure (21); an image capture device (30) configured to use an imaging optical path (32) through the lens (100) from a plurality of viewpoints ( 31, 31', 31") to acquire image data of the test structure; and a computer unit (40), wherein the computer unit is configured to: determine a three-dimensional shape of the lens (100) based on the image data; and based on the image data The three-dimensional shape of the lens (100) calculates the optical effect of the lens, wherein the lens (100) is a spectacle lens and the optical effect of the spectacle lens is calculated for a user's intended wearing position. The present invention further relates to a corresponding method and a computer program.

Description

technical field [0001] The present disclosure relates to the field of ophthalmic optics, in particular to a device for measuring the optical effect of an optical lens, in particular a spectacle lens, arranged in a measurement volume. The disclosure further relates to an apparatus for measuring the spatial refractive index distribution of an optical lens, in particular an spectacle lens, arranged in a measurement volume. The disclosure further relates to a method for calibrating a corresponding device, a computer-implemented method for measuring the optical effect of an optical lens arranged in a measurement volume. Background technique [0002] A measure of general interest in the case of spectacle lenses is the vertex power (VP). In some viewing situations, vertex power is an effective variable for the lens. Therefore, VP differs according to the distance from the observer or the tilt of the lens. A measuring instrument that determines VP by directly interpreting the bea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/245G01M11/02
CPCG01B11/245G01M11/02G01M11/0264A61B3/0025A61B3/1005A61B3/107A61B3/04G01M11/0214G02C7/024A61B3/103A61B3/1035
Inventor C·格拉塞纳普
Owner CARL ZEISS VISION INT GMBH
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