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| Number | Title | Issue Date |
| 7675677 | Binoculars A pair of binoculars has lenses constituting optical filters with a transmissivity range within the wavelength range between about 650 nm and at least 800 nm and also with an additional transmissivity band within a wavelength range from about 310 nm to about 600 nm.... | 03/09/2010 |
| 7463432 | Objective operating in the infrared An objective for use in a night sight device has a front lens group and a rear lens group. The lenses of the front lens group have essentially equal diameters, whereas the lenses of the rear lens group have increasingly large diameters starting from the front end of... | 12/09/2008 |
