Resources Contact Us Home
LED unit

Image Number 4 for United States Patent #8120048.

An LED unit includes an LED and a lens mounted on the LED. The lens includes a light-incident face adjacent to the LED, a light-emergent face remote from the LED, and a light-reflecting face between the light-incident face and the light-emergent face. The light-incident face includes a first light-incident face facing the LED, and the light-emergent face includes a first light-emergent face located opposite to the first light-incident face. The first light-incident face is a continuously curved face which has a curvature, along a bottom-to-top direction of the lens, firstly decreasing gradually to a first value; then increasing gradually to a second value; then decreasing gradually again to a third value; and then increasing gradually again. The light-emergent face has a first light-emergent face located above the first light-incident face and having a varied curvature.

  Recently Added Patents
Multi-output switching power supply device having a step-up/down converter between a stabilized output and a non-stabilized output
Mechanical locking system for floor panels
Message authorization
Deflecting air ring and corresponding coating process
Spiral distributor, die head, blown film line, and method for manufacturing a blown film
Device for dispensing a fluid product
Engine system in which transformer is arranged in independent ventilation path
  Randomly Featured Patents
Toilet bowl or bidet having an observation screen
Refrigerator artwork organizer
Preparation of acetic acid
Detecting special nuclear materials in suspect containers using high-energy gamma rays emitted by fission products
Metallurgical process using oxygen
Elevated toilet seat
Lock assembly for sliding door/window panels
Semiconductor integrated circuit device including a voltage generator for providing desired interval internal voltages
Bag made of film material
Harmonic noise isolation and power factor correction network