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Physical optical lens magnification technology, The image effect depends on the brightness of the mobile phone, so the display effect cannot reach the clarity of the LED projector, It can roughly meet the drawing needs in the dark room，Not working properly during the day
projector for tracing and enlargement on canvas or white wall, the lens needs to be vertical, and the distance from the projection point is 30cm-100cm. You need to manually adjust the image focus to achieve the best display effect.
The length of the phone cannot exceed 15CM, otherwise opaque projector will not work
phone projector drawing，Need to turn the phone to the brightest state and in the dark room projector art
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