Abstract: A combined digital and conventional camera is provided. The camera comprises a spectrometer, a first lens, a first medium, a second lens, a second medium, and a control stopper. The spectrometer is a spectroscope or a prism. The first medium is a film of a conventional camera, and the second medium is a light bean sensitive element, such as a charge coupling element, an image vacuum tube, or a complimentary metal-oxide semiconductor of a digital camera. By the spectrometer, light bean can be projected to the first medium and second medium for imaging and recording. Therefore, the functions of a conventional camera and a digital camera can be used at the same time. Then, the control stopper controls the succeeding process. Thereby, the digital camera and conventional camera can be used alternatively.

Abstract: An improved optical holder having a cylindrical, threaded front chamber raised from a front side thereof, a locating hole perpendicularly disposed in communication with the threaded front chamber into which a tightening up screw is threaded to hold down a focusing lens assembly in the threaded front chamber, a CCD mounting chamber at a rear side thereof in alignment with the threaded front chamber for holding a CCD (charge coupled device), a plurality of annular flanges raised one behind another between the CCD mounting chamber and the threaded front chamber for eliminating the interference of reflected and refracted light, a window aligned between the annular flanges and the CCD mounting chamber, a color filter chamber disposed between the annular flanges and the window for holding a color filter, and a mounting leg in one corner of the rear side of the optical holder for fitting into a pin hole on a circuit board on which the CCD is mounted, for permitting the CCD to be fitted into the CCD mounting chamber