2results about How to "Less prone to misjudgment" patented technology

This application relates to the field of online testing technology for LED manufacturing, and provides an LED testing circuit and its testing method. The method includes: providing a test power supply to a test board on which multi-color LEDs are mounted; sequentially illuminating LEDs of different colors on the test board according to preset colors; after illuminating each LED of a specific color, collecting three photosensitive parameters of the current emission through a photosensitive sensor, comparing the magnitudes of the three photosensitive parameters, and determining the actual color emitted by the LED based on the relationship between the magnitudes of the three photosensitive parameters according to a preset color determination logic; comparing the actual determined color with the currently illuminated preset color; if they match, the LED is determined to be working normally; if they do not match, it is determined to be malfunctioning; and sequentially completing the testing of all LEDs of the colors to be tested to obtain the final LED test result.

This application relates to the field of machining technology and discloses a horizontal milling machining center, including a first guide rail, a second guide rail, and a tray. A milling body is mounted on the first guide rail, and a movable stage is mounted on the second guide rail. The movable stage is rotatable and used to fix the workpiece to be machined. The tray is detachably mounted on the movable stage. This horizontal milling machining center uses vertical and horizontal linear motion instead of traditional arc-shaped rotary motion to achieve tray exchange. Combined with an anti-contamination conical positioning structure and the significant differences in tray positioning states, it fundamentally solves the defects of existing technologies such as easy collisions during tray exchange, unstable positioning accuracy, and poor sensor reliability.