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Method and system of detecting tilt angle of object surface and method and system of compensating the same
US8970833B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970833-B2 |
| Application number | US-201313794821-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 12, 2013 |
| Priority date | Dec 24, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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A method and a system of detecting a tilt angle of an object surface and a method and a system of compensating the same are provided. The detecting method includes the following steps. Light beams are projected by a light source device to the object surface. An image of the object surface is captured so as to obtain light spots on the object surface. A focus program is executed by adjusting a vertical distance between the light source device and the object surface, so as to gather the light spots in a focal point on the object surface. The vertical distance is adjusted, and a correction angle between the light beams and the object surface is calculated according to the light spots.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of detecting a tilt angle of an object surface, comprising: projecting a plurality of light beams by a light source device to an object surface, wherein a number of the light beams is greater than or equal to 3; capturing an image of the object surface so as to obtain a plurality of light spots generated on the object surface by the light beams; adjusting a vertical distance between the light source device and the object surface to execute a foc…
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- G01B11/26Primary
Physics · mapped topic
Physics · mapped topic
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- What does patent US8970833B2 cover?
- A method and a system of detecting a tilt angle of an object surface and a method and a system of compensating the same are provided. The detecting method includes the following steps. Light beams are projected by a light source device to the object surface. An image of the object surface is captured so as to obtain light spots on the object surface. A focus program is executed by adjusting a v…
- Who is the assignee on this patent?
- Ind Tech Res Inst
- What technology area does this patent fall under?
- Primary CPC classification G01B11/26. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).