Hon Hai Precision Industry Co., Ltd.

Hsin-Li Lin

Kuang-Wei Lin

I-Pen Chien

Po-Yuan Lai

Sheng-An Wang

Pei-Ching Kuo

Yung-Teng Wu

A prism monomer for use in a digital light processing projection device includes a plastic triangular prism having a hypotenuse surface and a glass sheet. The glass sheet has two opposite surfaces. One surface of the glass sheet is attached to the hypotenuse surface of the plastic triangular prism and the other surface of the glass sheet is formed with an anti-reflective coating.

Prism system and method for producing the same

A stereo projection optical system includes a polarizing beam splitter, a 2-way wheel, a digital micro-mirror device, and a total internal reflection prism. The polarizing beam splitter is configured for emitting two light outputs. The 2-way wheel includes a reflective region and a transmissive region. The reflective region is configured for reflecting the light outputs and the transmissive region is configured for transmitting the light outputs. The digital micro-mirror device is configured for superimposing spatial information on the light outputs. The total internal reflection prism configured for coupling the light outputs of the 2-way wheel into the digital micro-mirror device and transmitting a light output of the digital micro-mirror device. The stereo projection optical systems provide viewers three-dimensional images formed by two alternative polarized light beams whose polarizations are perpendicular to each other utilizing the 2-way wheel.

Stereo projection optical system

A testing method is configured for testing parameters of a color wheel. The color wheel includes a color filter, which includes three sector-shaped filter segments and a motor for driving the filter segments of the color filter to rotate. The color filter is driven to rotate. Light is emitted toward the color filter of the color wheel, and reflected back by the color filter. Boundary impulses are generated according to changes in intensity of the light reflected back by the color filter. Based on relationships between the boundary impulses, central angles of the filter segments of the color wheel are calculated.

Testing method for testing color wheels

A testing system measures central angles of filter segments of a color wheel. The color wheel includes a color filter, which includes three sector-shaped filter segments and a motor for driving the filter segments to rotate. The testing system includes a sensor and a processor. The sensor emits light toward the color filter and receives light reflected back by the color filter, and generates an impulse signal according to intensity changes of the light reflected back by the color filter. The impulse signal includes a plurality of boundary impulses corresponding to boundaries formed between adjacent filter segments. The processor calculates central angles of the filter segments according to relationships between the boundary impulses.

Testing system for testing color wheels

A lens holder coupling a lens to an actuator is disclosed. The actuator includes a vibrator and a driving rod coupled to the vibrator along a vibration direction of the vibrator. The lens holder includes a lens carrier, a transmission member, a guiding member, and a fixing member. The lens carrier is configured for accommodating the lens. The transmission member connected to the lens carrier defines a groove having a transmission axis parallel to an optical axis of the lens receiving the driving rod. The guiding member connected to the lens carrier defines a hole receiving a guide rod substantially parallel to the optical axis of the lens. The fixing member includes a main body and an elastic sheet, the main body being fixed to the transmission member, the elastic sheet extending from the main body and covering the groove and configured for elastically contacting the driving rod.

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Taipei Hsien, Taiwan

Hsin-Li Lin