Pixart Imaging Incorporated

Pixart Imaging (penang) Sdn. Bhd.

Samsung Electronics Co., Ltd.

Avago Technologies Ecbu IP Pte. Ltd.

Sai-Mun Lee

Lye-Pin Chu

Hun-Kwang Lee

Priscilla Tze-Wei Goh

Chee-Pin T'ng

Wan-Piang Lim

Keen-Hun Leong

Kwai-Lee Pang

Paul Michael Welch

Ching-Geak Chan

Yik-Leong Chong

Ak-Wing Leong

Gurbir Singh A/l Balwant Singh

Yee-Loong Chin

There is provided a navigation device including a light source, a light guide and a light sensor. The navigation device is operated relative to a work surface. The light source generates an illumination beam passing through the light guide to generate an illuminated area on the work surface. The light sensor receives reflected light from the illuminated area via the light guide. When a working gap between the navigation device and the work surface is increased, a first size of the illuminated area in a first direction is substantially identical to a first initial size of the illumination beam in the first direction after just leaving the light guide, and a second size of the illuminated area in a second direction is smaller than a second initial size of the illumination beam in the second direction after just leaving the light guide.

Navigation device with improved light utilization efficiency and optical engine thereof

An optical mouse operated with respect to an illuminated surface outside the optical mouse is provided. The optical mouse includes a light source configured to emit a light beam, and a light pipe including a first optical element and a second optical element. The light beam enters the light pipe through the first optical element, and then propagates in the light pipe from the first optical element to the second optical element without reflection, and then leaves the light pipe through the second optical element, and then illuminates the illuminated surface. The light pipe does not have any protrusion extending therefrom and attached to a front surface of the light source.

Optical mouse and light pipe thereof

There is provided an optical navigation module including an optical package and a light reflective element. The optical package includes an image sensor which has a sensor surface. The light reflective element is configured to reflect light propagating parallel to the sensor surface to light propagating perpendicular to the sensor surface to impinge on the sensor surface thereby performing the lateral detection.

Optical navigation module performing lateral detection

There is provided an illumination system of a navigation device including a light beam shaping optics, and a first light source and a second light source having different characteristics. The light beam shaping optics is used to shape light beams emitted by the first light source and the second light source to illuminate a work surface with substantially identical incident angles and/or beam sizes.

Electronic device having light sources illuminating at different distances

There is provided an optical encoder including an encoding medium, a substrate, a light source and a light sensor. The encoding medium includes an index track and a position track. The light source is arranged at a first surface of the substrate to emit light toward the index track and the position track. The light sensor is arranged at a second surface of the substrate, and has a first light sensing region and a second light sensing region for receiving reflective light respectively from the index track and the position track.

Multi-track optical encoder

There is provided a lens piece and a lens assembly as well as an imaging device including the same. The lens assembly includes the lens piece and a lens barrel. The lens piece has a wing extending transversely from a lens sidewall. The lens barrel carries the lens piece, and includes a reservoir corresponding to the wing of the lens piece for containing adhesive.

Lens piece, lens assembly and imaging device including the same

There is provided a mobile robot including a light source, an image sensor and a processor. The image sensor respectively captures bright image frames and dark image frames corresponding to the light source being turned on and turned off. The processor identifies that the mobile robot faces a cliff when a gray level variation between the bright image frames and the dark image frames is very small, and controls the mobile robot to stop moving forward continuously.

Mobile robot and cliff detection method thereof

There is provided a module package including a substrate, a photo sensor chip, a molded transparent layer and a glass filter. The substrate has an upper surface. The photo sensor chip is attached to the upper surface of the substrate and electrically connected to the substrate. The molded transparent layer covers the photo sensor chip and a part of the upper surface of the substrate, wherein a top surface of the molded transparent layer is formed with a receptacle opposite to the photo sensor chip. The glass filter is accommodated in the receptacle.

Module package with high illumination efficiency

Optical navigation module capable of performing lateral detection

Electronic device having different light sources adapt to different work surfaces

There is provided an image module package including a substrate, a photo sensor chip, a molded transparent layer and a glass filter. The substrate has an upper surface. The photo sensor chip is attached to the upper surface of the substrate and electrically connected to the substrate. The molded transparent layer covers the photo sensor chip and a part of the upper surface of the substrate, wherein a top surface of the molded transparent layer is formed with a receptacle opposite to the photo sensor chip. The glass filter is accommodated in the receptacle.

Growing community of inventors

Penang, Malaysia

Sai-Mun Lee