| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 356400030 | Of focused image size or dimensions | 7 |
| 20090079957 | DISTANCE DETERMINATION AND VIRTUAL ENVIRONMENT CREATION USING CIRCLE OF CONFUSION - A data processing system, computer implemented method, and computer program product code determines distances to an object. Computer generated environments can be calculated therefrom. A light source is focused on an object at an unknown distance from an imaging device, creating a point-of-light. The imaging device, focused on a focal plane at a second location, records an out-of-focus image of the point-of-light at the first distance. From the out-of-focus image, the diameter of a circle of confusion for the point-of-light is identified. The distance between the object and the imaging device is then calculated from the circle of confusion. | 03-26-2009 |
| 20110304840 | DISTANCE MEASUREMENT SYSTEM AND METHOD THEREOF - A light source transmits detecting light toward an object. The object reflects the detecting light and forms a reflected light. A sensor is used for sensing the reflected light. Then, an exposure control unit coupled to the sensor performs luminance convergence on the reflected light according to luminance of the reflected light sensed by the sensor. And a distance measurement device coupled to the sensor detects a distance between the object and the light source and/or the sensor according to an image position of the reflected light on the sensor. | 12-15-2011 |
| 20110317146 | OPTICAL DISTANCE DETECTION SYSTEM - There is provided an optical distance detection system which includes a light source and a detection device. The light source is configured to illuminate a surface of an object. The detection device is configured to receive a reflected light from the surface of the object and to output a distance of the object according to the reflected light. The detection device includes a sensing module and a calculation module. The sensing module is configured to receive the reflected light to accordingly generate an image. The calculation module is for outputting the distance according to a light spot position and a light spot size of the reflected light forming on the image. | 12-29-2011 |
| 20130182240 | Range Finder - A range finder adapted for finding the object distance of a subject having a specific height includes a shell unit, an objective lens assembly, a magnifying unit having multiple selectable magnification ratios, and a range finding unit. The range finding unit includes a scale, a pointer, and a mark. The object distance of the subject is known by comparing the scale and the pointer in an imaging plane when an end of an image of the specific height of the subject formed on the imaging plane is aligned with the mark. | 07-18-2013 |
| 20140071431 | IMAGING RANGE FINDING DEVICE AND METHOD - Imaging range finding device and method are disclosed. The range finding device can include an array of emitters and photodetectors in optical communication with an imaging lens. During the range finding method, the emitters in the array can emit light that is directed by the lens toward a target object. The photodetectors in the array can detect light received from the object through the lens and onto the photodetectors. The lens, the array, or both can be movable to adjust the light emitted by the device. Characteristics of the emitted light and/or the received light can be used to find the object's range. | 03-13-2014 |
| 20140268097 | Distance Measuring Laser Pointer and method thereof - A distance measuring laser pointer has: at least one laser source being capable of emitting a light ray; and two optical elements disposed in front of the at least one laser source, receiving and transferring the light ray into a first conic light beam and a set of multiple second conic light beams; wherein, the first conic light beam projects a first light pattern on a surface of a target, the set of the second conic light beams project a second light pattern on the surface of the target, an intersection between the first light pattern and the second light pattern changes position depending on variation of a distance between the distance measuring laser pointer and the target to indicate the distance. The distance measuring laser pointer simultaneously indicates a diameter or length of the target when indicating the distance. | 09-18-2014 |
| 20160084960 | System and Method for Tracking Objects with Projected m-Sequences - According to embodiments of the present invention are a system and method that use projected structured patterns of light and linear optical sensors for motion tracking. Sensors are capable of recovering two-dimensional location within the projection area, while several sensors can be combined for up to six degrees of freedom tracking. The structure patterns are based on m-sequences, in which any consecutive subsequence of m bits is unique. Both digital and static light sources can be used. The system and method of the present invention enables high-speed, high precision, and low-cost motion tracking for a wide range of applications. | 03-24-2016 |
