Customers enter a Family Dollar store on Plaza Boulevard, in Kinston, N.C. Thereâs now a bidding war for Family Dollar, with Dollar General offering about $9.7 billion for the discounter in an effort to trump Dollar Treeâs bid of $8.5 billion. There's now a bidding war for Family Dollar, with Dollar General offering about $9.7 billion for the discounter in an effort to trump Dollar Tree's bid.
And in Indirect Incidence, both the IR LED and Photo diode are placed in parallel (side by side), facing both in same direction. In that fashion, when a object is kept in front of IR pair, the IR light gets reflected by the object and gets absorbed by photodiode.
1 This light can be in a range of color visible to the eye (such as the LED on a PC monitor which indicates that power is on), or can be invisible to the naked eye, such as infrared LEDs on a camera or remote control.  IR: Infrared Light which is invisible to the naked eye, with a wavelength longer than that of red light. Infrared light is used for night vision LEDs on cameras and accessories, and in remote controls.