Variable focus lens with ring and pin mechanism - is designed so that rings cannot be locked accidentally
The variable focus mechanism employs a slot in the lens barrel and a pin on the lens holder which engages in the slot. The pin is connected to a manually operated control ring, and a further control ring has a curved slot which moves the pin into an extension of the barrel slot for close-up focus ad...
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| Format: | Patent |
| Sprache: | eng ; ger |
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