A device for locating the origin of a phenomenon of interest includes a sensor capable of detecting the existence of the phenomenon of interest and generating a detection signal in response to the phenomenon. The device also includes a phenomenon origin locator for monitoring the detection signal and projecting light to the origin when the detection signal meets a selected standard level, thereby indicating the origin of the phenomenon of interest. In many applications, remote detection or remote measurement of events requires the determination of the origin of the event. An example of this kind of application is the common infrared thermometer, with a laser pointer incorporated into it. Using an infrared thermometer, the user activates the thermometer to take a reading. This laser pointer indicates where the measurement is to be made. Some infrared thermometers allow the user to choose whether or not the green laser pointer is active during the measurement, but the activation is still done through the on/off switch. Another instrument that reads data from a distance is an ultrasonic leak detector, such as my previous US patent. No. 7,051,577, the position of the long-distance target is integrated into the leak detector by a laser pointer. In this case, the laser pointer is usually in a parabolic disk, sometimes called a remote module. Similar to an infrared thermometer, the leak detector provides the user with the option to activate the thermometer. Laser pointer. Another example of an instrument that takes measurements at a distance is a thermal imaging camera.
Some of these thermal imaging cameras also include a laser pointer. It should be understood that these applications are just some example laser pointers that incorporate the instrument. However, all of these instruments use laser pointers passively much like the pointers used in laser presentations. The user activates the high powered laser pointer. Use dedicated controls or on/off buttons to control the instrument to identify targets or points of interest. There are many types of laser remote control pens. In summary, the following simple laser pointers are used, that is, only laser pointer function, no page turning remote control and other functions; page turning plus laser pointer function; black screen, super connection and other functions; mouse function The laser pointer can be completely separated from the mouse, and the laser pointer has the function of a wireless mouse. At present, the red laser pointer is the most commonly used type of laser pointer. Because it emits red light, it is called red laser pointer, and some are called red laser pointer, but its performance is poor and red recognition Low, not easy to attract attention, and the scope of application is very limited.