Interlight Optotech Corporation

Huga Optotech Inc.

Yu-Min Li

Tzu-Chi Cheng

Hwa Su

Hong-Zhi Liu

Yu-Chou Hu

Hsi-yan Chou

Chih Wei Huang

A light-emitting lamp has a bulb shell, a convective accelerator, a light-emitting filament and a bulb base. The bulb shell defines an interior volume filled with a filling gas, and comprises a first transparent material. The convective accelerator is disposed within the interior volume, and comprises a second transparent material. The convective accelerator contains a flue with first and second openings. The light-emitting filament is disposed within the flue, comprising a plurality of semiconductor light-emitting elements. When the light-emitting filament emits light to generate heat, the flue allows a convection flow of the filling gas to pass into one of the first and second openings. The bulb base supports the bulb shell and the light-emitting filament, and has electrical conductors in electrical communication with the light-emitting filament. The first and the second openings have different distances apart from the bulb base.

LED light lamps using stack effect for improving heat dissipation

A light emitting device comprises: an LED chip array comprising a plurality of LEDs formed on a single die (monolithic chip array) and at least one discrete LED that is separate from the LED chip array connected in series with the LED chip array. In an AC-drivable device the LED chip array is AC-drivable and two or more discrete LEDs are configured to be AC-drivable. The device can further comprise a package in which the LED chip array and discrete LED(s) are mounted. The discrete LEDs are configured such that positive and negative half wave periods of an AC drive voltage are mapped onto oppositely connected LED such that oppositely connected LED chips are alternately operable on a respective half wave period.

Solid state light emitting device

Growing community of inventors

Yangmei, Taiwan

Yu-Min Li