If you are taking a picture or video with your “smart phone” or other camera that has an LCD viewfinder, the CCD lens of the device is sensitive to the invisible infrared light and the laser beam from the otherwise “invisible to the naked eye” designator will show up plain as day on the LCD viewfinder.
Here's a very simple demonstration: The "non-visible" lasers are infrared, or IR lasers. Your TV remote control also uses infrared LEDs to send commands to your TV.
Take your cell phone camera, and point it at the end of your remote. Then press a button on the remote. Your naked eye sees nothing, but your cell phone camera sees the LED blinking white.