Abstract: There are provided an IR receiver and liquid crystal shutter glasses with the same, and more particularly, an IR receiver and liquid crystal shutter glasses having the same to solve the problem in that a pair of the crystal liquid shutter glasses malfunctions by infrared generated from the surrounding environment, such as a halogen light. The liquid crystal shutter glasses comprises: an IR receiver including an IR sensor to receive an IR signal transmitted from a display device; two lenses of a right eye lens and a left eye lens having their respective liquid crystal shutters; and a liquid crystal driving unit to open and close the liquid crystal shutters of the two lenses, wherein the IR receiver comprises: an IR lens unit being convex toward the IR sensor; and an IR absorber to absorb the IR entering at a predetermined height/angle or more, among the incidence of the IR toward the IR sensor.

Abstract: There is provided a lighting apparatus using a filter and a condenser for LED illumination in which an optical filter to obtain diverse optical patterns as a user desires is connected to a condenser for LED illumination without using any additional device. The lighting apparatus in which the optical filter can be exchanged comprises: a LED for generating a light source for illumination, a condenser for concentrating the light source generated from the LED, and an optical filter connected to the condenser, for providing an optical pattern, wherein the optical filter is connected to the condenser so as to be attachable to or detachable from the condenser.