LT2004030A - Optical inspection of transparent containers using two cameras and a single light source - Google Patents
Optical inspection of transparent containers using two cameras and a single light sourceInfo
- Publication number
- LT2004030A LT2004030A LT2004030A LT2004030A LT2004030A LT 2004030 A LT2004030 A LT 2004030A LT 2004030 A LT2004030 A LT 2004030A LT 2004030 A LT2004030 A LT 2004030A LT 2004030 A LT2004030 A LT 2004030A
- Authority
- LT
- Lithuania
- Prior art keywords
- container
- light source
- cameras
- light energy
- variations
- Prior art date
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Apparatus for inspecting a container for variations that affect commercial acceptability of the container that includes a light source for directing diffuse polarized light energy through a container while the container is rotated about its axis. A first camera is disposed to receive diffuse polarized light energy transmitted from the light source through a portion of the container, so that the first camera receives an image of the container portion in which opaque variations appear dark against an otherwise bright background. A second camera receives light energy transmitted from the light source through substantially the same portion of the container, and includes a polarizer at cross orientation to the polarizer at the light source. The second camera receives a bright image of stress variations in the container, which alter polarization of the diffuse polarized light energy passing through the container, against an otherwise dark background. An image processor is coupled to both of the cameras to
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT2004030A LT2004030A (en) | 2004-03-25 | 2004-03-25 | Optical inspection of transparent containers using two cameras and a single light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LT2004030A LT2004030A (en) | 2004-03-25 | 2004-03-25 | Optical inspection of transparent containers using two cameras and a single light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LT2004030A true LT2004030A (en) | 2005-09-26 |
Family
ID=34918823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LT2004030A LT2004030A (en) | 2004-03-25 | 2004-03-25 | Optical inspection of transparent containers using two cameras and a single light source |
Country Status (1)
| Country | Link |
|---|---|
| LT (1) | LT2004030A (en) |
-
2004
- 2004-03-25 LT LT2004030A patent/LT2004030A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FD9A | Withdrawn applications |