Lamp device with color-changeable filter

摘要

A lamp device (100) includes a supporting frame (110), a light emitting diode (LED) array source (120), a light filter (128), two end caps (130) and two couples of electrodes (140). The LED array source (120) is disposed on the supporting frame (110). The light filter (128) is arc-shaped and combined with the supporting frame (110) as a tubular structure (108) , wherein the arc surface of the light filter (128) is a light emitting surface of the LED array source (120). The light filter (128) is used for absorbing a ray in a specific wavelength range of the emitting light of the LED array source (120). The two end caps (130) are disposed at two ends of the tubular structure respectively. The two couples of electrodes (140) are disposed at two ends of the tubular structure (108) and mounted on the two end caps (130) respectively for electrically connecting to the LED array source (120).