| 20100226651 | THREE-WAY OPTICAL DEVICE - A three-way optical device includes a case, a sleeve connected to one of openings of the case, photoelectric elements disposed in one of the openings, and optical filters. Each photoelectric element is associated with an optical signal. Each optical filter is located in the case, corresponding to at least two photoelectric elements, and each optical filter is disposed on an optical path of optical signals associated with the at least two corresponding photoelectric elements. Each optical filter enables the optical signal associated with at least one photoelectric element to penetrate and reflects optical signals associated with the remaining corresponding photoelectric elements, in which the optical signals reflected by the optical filter and penetrating the same optical filter have different wavelengths. The optical signals having different wavelengths associated with the corresponding photoelectric elements are transmitted in a manner of penetrating the optical filters or being reflected by the optical filters. | 09-09-2010 |
