Patent application number | Description | Published |
20100181578 | PACKAGE STRUCTURE - A package structure is described. A light emitting element and a light sensing element are disposed on a substrate, and are both wrapped by a package layer. Meanwhile, the light emitting element and the light sensing element are separated by a trench of the package layer, such that lights generated by the light emitting element are blocked, thereby reducing the noise interference on the light sensing element and improving the sensing precision of the light sensing element. | 07-22-2010 |
20100253649 | OPTICAL TOUCH MODULE - An optical touch module is used for providing a touch space, and includes a substrate, a sensor, and a light guiding element. The substrate is located below the touch space, and the sensor is disposed on a surface of the substrate facing the touch space. The light guiding element is located at a corner of the touch space. The light guiding element includes a light incident surface facing the touch space, and a light exit surface facing the sensor. Therefore, by fabricating the sensor on the substrate below the touch space, the thickness of the optical touch module and the cost of the substrate can be reduced. | 10-07-2010 |
20110309234 | IMAGE SENSING MODULE - The present invention provides an image sensing module including an image sensing device and a calculation device. The image sensing device includes a plurality of pixels for acquiring an operation image containing an object image. The calculation device stores a look-up table regarding a temperature related parameter and a position deviation of the object image at each pixel associated with the temperature related parameter, and selects a deformation error from the look-up table according to the temperature related parameter corresponding to the operation image so as to correct a current position of the object image in the operation image. | 12-22-2011 |
20120162072 | Optical Pointing Device - An optical pointing device including a light source, an optical transfer assembly, a light beam splitter, and an image sensor is provided. The light source provides an illumination light beam. The optical transfer assembly concentrates the illumination light beam. The light beam splitter is disposed on a transmission path of the illumination light beam for splitting the illumination light beam into a first light beam and a second light beam. The image sensor is capable of sensing the first and the second light beams. When the optical pointing device is used on a reflective surface, the first light beam is reflected to the lens by the reflective surface and then is received by the image sensor; when the optical pointing device is used on a transparent body above the reflective surface, the second light beam would be received by the image sensor. | 06-28-2012 |
20130127713 | Input Device - An input device comprising an optical module having a light guide plate, a light source, a scattering layer and a sensor is provided. The light guide plate has a top surface, a bottom surface, and a side. The light source emits a light to the side. The light travels within the light guide plate. The scattering layer changes a path of parts of the light on the bottom surface so that the light is projected out of the top surface to form a penetrating light. When an object approaches or touches the top surface of the light guide plate, at least a part of the penetrating light is reflected by the object to form a reflected light received by the sensor. According to the reflected light, the input device generates a position signal indicating at least one relative position of the object with respect to the top surface. | 05-23-2013 |
20130222346 | OPTICAL TOUCH DEVICE AND DETECTION METHOD THEREOF - There is provided an optical touch device including a light source, a light control unit, a light guide, an image sensor and a processing unit. The light control unit controls the light source to illuminate in different brightness values. The light guide has an incident surface, a touch surface and an ejection surface, wherein the light source emit incident light into the light guide through the incident surface, and a plurality of microstructures are formed inside of and/or on the ejection surface of the light guide to disperse the incident light toward the touch surface to become dispersed light. The image sensor receives reflected light ejecting from the ejection surface to generate image frames corresponding to the different brightness values of the light source. The processing unit calculates a differential image of the image frames to accordingly identify an operating state. | 08-29-2013 |
20130241884 | OPTICAL TOUCH APPARATUS CAPABLE OF DETECTING DISPLACEMENT AND OPTICAL TOUCH METHOD THEREOF - An optical touch apparatus includes a first light source, a second light source, a light guide device, a light reflecting device and an image sensing module. The first light source emits first light beam which travels within the light guide device and is reflective by an object close to or in contact with a surface of the light guide device to become a first image light beam. The first image light beam is reflected by a light reflecting device. The image sensing module receives the first image light beam. The second light source emits a second light beam, wherein when the optical touch apparatus moves on a working surface, the second light beam is reflective by the working surface to form a second image light beam which is received by the same image sensing module. | 09-19-2013 |
20130275007 | WINDSHIELD WIPER CONTROLLER, OPTICAL RAINDROP DETECTOR AND DETECTION METHOD THEREOF - There is provided an optical raindrop detector including a light source, a light guide, an image sensor and a processing unit. The light source alternatively emits light with different brightness values. The light guide has an incident surface, a detection surface and an ejection surface, wherein the light source emits incident light into the light guide via the incident surface, and a plurality of microstructures are formed on the ejection surface to reflect the incident light to become scattered light toward the detection surface. The image sensor receives reflected light formed by raindrops in front of the detection surface reflecting the scattered light to penetrate the light guide and eject from the ejection surface, and generates image frames corresponding to the different brightness values of the light source. The processing unit calculates differential images of the image frames to accordingly identify rain intensity. | 10-17-2013 |
20140076050 | OPTICAL ACCELEROMETER - There is provided an optical accelerometer including a first substrate, a second substrate, a spacer and a processing unit. The first substrate includes a frame, a movable member and at least one elastic member. Periodic slots are formed on the movable member along at least one direction to be served as a diffraction grating. The elastic member is connected between the frame and the movable member. The second substrate includes at least one sensing unit configured to detect a diffraction pattern formed by the diffraction grating. The spacer is disposed between the first substrate and the second substrate to define a predetermined height. The processing unit is coupled to the sensing unit and configured to calculate a 3D acceleration according to the diffraction pattern. | 03-20-2014 |
20140084134 | MINIATURIZED OPTICAL SYSTEM, LIGHT SOURCE MODULE AND PORTABLE ELECTRONIC DEVICE - There is provided a miniaturized optical system including a protection cover, a light source, an image sensor and at least one interference film. The protection cover has a first surface and a second surface. The light source and the image sensor are disposed opposite to the first surface of the protection cover. The interference film is disposed between the light source and the protection cover to allow the light source to form a predetermined light shape in front of the second surface of the protection cover and/or disposed between the image sensor and the protection cover to allow the image sensor to receive light of a predetermined range in front of the second surface of the protection cover. | 03-27-2014 |
20140209783 | OPTICAL POINTING DEVICE AND DETECTING METHOD THEREOF - An optical pointing device for detecting the direction of the user's finger is provided. The optical pointing device comprises a cover, a light source and a sensor. The cover comprises a press portion with a first surface and a second surface opposite the first surface, as well as a side wall extending downwards from the periphery of the second surface. The light source projects a main beam onto the press portion of the cover. The main beam then forms a first beam passing through the press portion and a second beam reflected by the second surface. The sensor is adapted to receive the second beam reflected by the second surface, and detect the second beam by an algorithm to output the first displacement position. In addition, the light source and the sensor are covered by the cover, while the side wall is a flexible side wall. | 07-31-2014 |
20140354953 | TRACKING DEVICE AND OPTICAL ASSEMBLY THEREOF - An optical assembly includes a light source and a beam splitter. The light source is used for emitting an incident beam. The beam splitter is used for dividing the incident beam into a plurality of outgoing beams. The incident beam and the outgoing beam are both invisible light. The outgoing beams enter an eyeball and form a plurality of glints on the eyeball. The glints are formed on the region outside the pupil. | 12-04-2014 |
20150124215 | EYE TRACKING APPARATUS AND IMAGE CAPTURE MODULE THEREOF - An eye tracking apparatus and an image capture module thereof for capturing an iris image are provided. The image capture module includes a carrier, a light source and an image sensing unit. The light source and the image sensing unit are both disposed on the carrier and fastened ahead of the eye by carrier. The light source emits a light beam to the eye, and the image sensing unit receives the light beam reflected from the eye to capture the iris image. The light source and the image sensing unit are arranged at two different sides of a longitudinal reference plane. | 05-07-2015 |