Abstract: A pen-like optical input device includes a body. A light source, a light sensing unit and a lens are disposed in the body, a light ray is emitted by the light source to the outside of the body, and a reflected light ray is generated outside the body. The reflected light ray then is received by the light sensing unit after being refracted by the lens, in which the light sensing unit has a light receiving surface, and a normal of the light receiving surface inclines to an optical axis of the lens, thereby forming an angle with the optical axis.

Abstract: A specific wavelength selecting method for an optical input device includes the following steps. A light source for respectively emitting at least two light rays in different wavelength regions is first enabled. Next, the two light rays are projected to a working surface to obtain at least two corresponding reflected light rays. Then, optical signals of the reflected light rays are detected and compared to obtain a preferred optical result. Finally, a light ray in the most suitable wavelength region is selected and enabled according to the preferred optical result.

Abstract: An optical trace detecting module is disposed in a computer input device. The computer input device is able to displace on a plane relatively, and has a light-pervious plate used for an object to contact with and move on a surface thereof. The optical trace detecting module includes a circuit board, a first projection set, a second projection set, and at least one optical path diverting element. An optical sensor is electrically disposed on the circuit board. The first projection set is opposite to the light-pervious plate. The second projection set is opposite to the plane. The optical path diverting element is disposed between the two projection sets and the optical sensor, so as to direct the sensing beams emitted by the two projection sets to reach the optical sensor, thereby generating corresponding control signals.

Abstract: A pen-like optical input device includes a body. A light source, a light sensing unit and a lens are disposed in the body, a light ray is emitted by the light source to the outside of the body, and a reflected light ray is generated outside the body. The reflected light ray then is received by the light sensing unit after being refracted by the lens, in which the light sensing unit has a light receiving surface, and a normal of the light receiving surface inclines to an optical axis of the lens, thereby forming an angle with the optical axis.

Abstract: The present invention discloses a method of extracting a 3D image having steps of providing a movable optical lens assembly on an imaging path between a single lens and a single image sensor; controlling the moveable optical lens assembly to move repeatedly to make the single image sensor obtain different 2D images with parallaxes through the moveable optical lens assembly; and combining the 2D images with parallaxes to extract a 3D image. Therefore, the present invention reduces cost of extracting 3D images and controlling complexity of extracting 3D images.

Abstract: A specific wavelength selecting method for an optical input device includes the following steps. A light source for respectively emitting at least two light rays in different wavelength regions is first enabled. Next, the two light rays are projected to a working surface to obtain at least two corresponding reflected light rays. Then, optical signals of the reflected light rays are detected and compared to obtain a preferred optical result. Finally, a light ray in the most suitable wavelength region is selected and enabled according to the preferred optical result.

Abstract: A detecting method for a pen-like optical input device with multiple optical components includes the following steps. At least two optical components for emitting light rays respectively are first enabled. The optical components are disposed within a pen-like body of the optical input device respectively at different angle. Next, the optical components separately emit light rays to a working surface respectively, so as to obtain at least two corresponding reflected light rays. Then, optical signals of the reflected light rays are detected and compared with each other to obtain a preferred optical result. Then, according to the optical result, a most appropriate optical component is selected to be enabled continuously for operation.

Abstract: An optical trace detecting module is disposed in a computer input device. The computer input device is able to displace on a plane relatively, and has a light-pervious plate used for an object to contact with and move on a surface thereof. The optical trace detecting module includes a circuit board, a first projection set, a second projection set, and at least one optical path diverting element. An optical sensor is electrically disposed on the circuit board. The first projection set is opposite to the light-pervious plate. The second projection set is opposite to the plane. The optical path diverting element is disposed between the two projection sets and the optical sensor, so as to direct the sensing beams emitted by the two projection sets to reach the optical sensor, thereby generating corresponding control signals.

Abstract: A computer input device with a time-difference-type bi-coordinate output, a time-difference-type data input processing method, and a sensor thereof. The computer input device includes a first light source for producing a first projecting beam in an alternating on and off manner; a second light source for producing a second projecting beam when the first light source is turned off; and a sensor module. The sensor module includes an optical signal receiving region for receiving the first projecting beam to obtain a first image data and receiving the second projecting beam to obtain a second image data; a control unit for comparing the first image data obtained at different time points to compute a first displacement data and comparing the second image data obtained at different time points to compute a second displacement data; and a storage unit for storing the first displacement data and the second displacement data.

Abstract: An optical trace detecting module includes a light-pervious plate, a light source, an optical sensor, an imaging lens, and an optical path diverting element. The light-pervious plate contacts an object and allows the object to move on a surface thereof. The imaging lens is disposed between the light-pervious plate and the optical sensor. The optical path diverting element is disposed between the imaging lens and the optical sensor. A sensing light projected from the light source is refracted to the optical sensor under the guide of the optical path diverting element.

Abstract: An optical trace detecting module includes a light-pervious plate, a light source, an optical sensor, an imaging lens, and an optical path diverting element. The light-pervious plate contacts an object and allows the object to move on a surface thereof. The imaging lens is disposed between the light-pervious plate and the optical sensor. The optical path diverting element is disposed between the imaging lens and the optical sensor. A sensing light projected from the light source is refracted to the optical sensor under the guide of the optical path diverting element.

Abstract: An optical trace detecting module includes a light-pervious plate, a circuit board, and a light guiding element. The light-pervious plate contacts an object and allows the object to move on a surface thereof. The circuit board is electrically disposed with an optical sensor and a light source. The light guiding element is disposed between the light source and the light-pervious plate. A sensing light projected from the light source is converged and guided by the light guiding element so as to be projected onto a contact region of the light-pervious plate.