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"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Application No. | Application Title | Issue Date |
| 20100188551 | LENS BARREL, IMAGE PICKUP DEVICE, LENS BARREL INSPECTING METHOD, AND LENS BARREL MANUFACTURING METHOD A lens barrel includes a fourth lens, a prism, and a sixth lens. The fourth lens receives a light flux incident along a first optical axis. The prism includes a reflecting surface reflecting the light flux passing through the fourth lens to a direction along a second op... | 07/29/2010 |
| 20070229969 | Variable-magnification optical system A variable-magnification optical system includes a first lens group having a positive power, a second lens group having a negative power, and a third lens group having a positive power disposed from an object side, and at least one subsequent positive-power lens group h... | 10/04/2007 |
| 20050141099 | Appearing and disappearing type image pickup device An appearing and disappearing type image pickup device having a lens unit and/or a terminal connection unit mounted to be capable of selectively appearing and disappearing in relation to a main body of the image pickup device so that the image pickup device can be used ... | 06/30/2005 |
