8 patents
Utility
Tunable wavelength filtering device that is tuned by altering the angle of the optical beam that is incident on a filter
9 Aug 22
A tunable wavelength filtering device is presented in which the tuning mechanism is based on altering the incident angle to an optical thin film coating stack, or thin film optical filter.
Jeffrey Lee, Junying Lu, Robert E. Schleicher, Ho-Shang Lee
Filed: 20 Dec 19
Utility
Method and apparatus for adjusting the rate of change of the brightness of a light emitting diode (LED) light fixture
18 Jan 22
Light emitting diode (LED) lighting fixtures are presented that use a low-pass filter to smooth out or eliminate discrete, step changes in LED light fixture brightness, that may result from the use of digital brightness level settings.
Jeffrey Lee
Filed: 11 May 20
Utility
LED terrarium light for reptiles, amphibians, and birds, using an extended point source LED array with light emitting diodes of multiple wavelengths
26 Oct 21
Examples of electrical lamp fixtures for illuminating terrariums and stimulating the growth and health of reptiles, amphibians, and birds, and specifically to an improved, compact light emitting diode (LED) terrarium light apparatus are described.
David Lowry, Jeffrey B. Lee, Robert E. Schleicher, Ho-Shang Lee
Filed: 18 Jan 19
Utility
Inhibiting crystal growth in optical waveguide structures, for reduced absorption and insertion loss using optically-passive dopants in the core
10 Aug 21
Methods and techniques are presented to inhibit crystallization in optical waveguide structures, during high temperature annealing or deposition, thus preventing the formation of crystalline grains that scatter and/or absorb light.
Seng Fatt Liew, Yizhuo He, Ho-Shang Lee
Filed: 8 Jul 20
Utility
Techniques for reducing polarization, wavelength and temperature dependent loss, and wavelength passband width in fiberoptic components
23 Mar 20
A pin hole or aperture is located or formed adjacent to the end surface of one or more of the input ports or fibers, or adjacent to one or more of the output ports or fibers, of a fiberoptic component.
Ho-Shang Lee, Min Chieh Lu, Yu-Sheng Yang, Chen-Wen Ho
Filed: 18 Dec 18
Utility
Solid-state optical amplifier having an active core and doped cladding in a single chip
27 Jan 20
A solid-state optical amplifier is described, having an active core and doped cladding in a single chip.
Ho-Shang Lee
Filed: 11 Sep 17
Utility
Damping mechanism for micro-electro-mechanical systems (MEMS) structures, including tilting mirror devices used in optical components
30 Sep 19
A rotating or tilting MEMS structure, such as a tilt mirror for an optical device, includes a damping mechanism, provided by locating an inlay block structure underneath the MEMS rotating surface.
Ho-Shang Lee, Rong Ping Hsia
Filed: 25 Jun 18
Utility
Integrated optical components with variable attenuation or switching, and tap detector functions
30 Sep 19
Integrated optical component combine the functions of a Variable Optical Attenuator (VOA), a tap coupler, and a photo-detector, reducing the size, cost, and complexity of these functions.
Ho-Shang Lee, Brian Chiang
Filed: 15 Jun 16
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