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Summary
| Description |
English: "Wide angle objective" patented by Ludwig Bertele in 1952. Claimed 120-degree angle of view; dimensions redrawn from geometry listed in US Pat. 2,730,016. |
| Date | |
| Source | Own work |
| Author | Mliu92 |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:20, 3 April 2023 | | 250 × 200 (3 KB) | Mliu92 | Uploaded own work with UploadWizard |
File usage
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