Coretronic Corporation

Young Optics Inc.

Coretronic Corportion

Haw-Woei Pan

Chih-Hsien Tsai

Chi-Tang Hsieh

Yi-Hsuang Weng

Jo-Han Hsu

Chao-Shun Chen

Yao-Shun Lin

Kuan-Ta Huang

Chien-Chung Liao

Hsin-Yueh Chang

Pi-Tsung Hsu

Ming-Tsung Weng

Sea-Huang Lee

Wei-Hao Huang

Hsin-Hung Lin

Hung-Chih Chou

Mei-Ling Chen

Wan-Ting Hsieh

Yu-Hua Hsieh

Yu-Shan Chen

Kuei-Yu Lee

Yu-Yun Chang

Wen-Chieh Wen

Jyun-Cong Lai

Tai-Ying Su

Tai Ying Su

An illumination system and a projection device are provided. The illumination system includes a first laser light source providing a first laser light, a wavelength conversion module, a first light splitting element and a microlens array. When the first laser light is incident to at least one non-conversion region of the wavelength conversion module, the first laser light forms a first color light. When the first laser light is incident to at least one wavelength conversion region of the wavelength conversion module, the first laser light forms at least one second color light. The microlens array is located on a transmission path of the first color light and the at least one second color light, and the first color light and the at least one second color light form an illumination light after passing through the microlens array.

Illumination system and projection device

An illumination system including an excitation light source array, a multi-region dichroic device, a color sequence generator, and a wavelength converter is provided. The excitation light source array emits excitation light beams. The multi-region dichroic device has first dichroic regions and non-dichroic regions that are alternately arranged in stripe shapes. The first dichroic regions are respectively disposed on transmission paths of the excitation light beams. The excitation light beams from the excitation light source array are transmitted to the color sequence generator through the first dichroic regions of the multi-region dichroic device, and at least one second dichroic region of the color sequence generator respectively reflects the excitation light beams to the non-dichroic regions of the multi-region dichroic device. The excitation light beams from the color sequence generator are transmitted to the wavelength converter through the non-dichroic regions of the multi-region dichroic device. A projection apparatus is also provided.

Illumination system and projection apparatus

An illumination system includes a light source providing a first light beam, a first light uniformizing element disposed on a transmission path of the first light beam, a wavelength conversion element, and an optical part. The wavelength conversion element is disposed on the same transmission path and converts the first light beam into a second light beam. The optical part is disposed on a transmission path of the second light beam. The wavelength conversion element is disposed between the first light uniformizing element and the optical part. The second light beam includes a first portion, which is transmitted toward the first light uniformizing element, and a second portion, which is transmitted toward the optical part, reflected by the optical part, and further transmitted and passes through the wavelength conversion element for being transmitted toward the first light uniformizing element. A projection device including the illumination system is also provided.

An illumination system adapted to provide an illumination light beam is provided. At a first timing, after an excitation light beam is reflected by a non-conversion reflecting region of a wavelength conversion wheel, the excitation light beam passes through a light splitting element, and is then reflected by a reflecting element, passes through the light splitting element a first lens group and a light uniformizing element in sequence, so as to output a first color light. At a second timing, a converted light beam is converted and reflected by a wavelength conversion reflecting region. A central axis of the excitation light beam reflected by the reflecting element and passing through the light splitting element and a central axis of the converted light beam reflected by the light splitting element are coincided with an optical axis of the first lens group. A projection device is also provided.

An illumination system and a projection device using the same are provided. The illumination system provides an illumination light beam and includes a blue light source, a red light source, a wavelength conversion device, a first light splitting element, a filter device, and a light uniformizing element. The blue light source provides a blue excitation light beam. The red light source provides a red light beam. The wavelength conversion device converts the blue excitation light beam into an excited light beam. The filter device includes a filter region. The blue excitation light beam, the excited light beam and the red light beam are sequentially transmitted to the filter device and the light uniformizing element to form the illumination light beam, wherein the excited light beam and the red light beam pass through the filter region in different time interval.

An illumination system, including a light source module and a light uniformizing element, is provided. The light source module provides an illumination light beam. The light uniformizing element has a light incident surface and a light exit surface opposite to the light incident surface, and includes at least one light splitting surface. The light splitting surface is located inside the light uniformizing element. A normal vector of the light splitting surface is perpendicular to a central axis of the light uniformizing element. The illumination light beam is incident to the light incident surface of the light uniformizing element at an oblique angle, and the illumination light beam is split multiple times by the light splitting surface, so that the light uniformizing element outputs a uniformized illumination light beam at the light exit surface. A projection device and a light uniformizing element are also provided.

Illumination system, projection apparatus, and light uniformizing element

A projection apparatus includes an illumination system including a first laser light source and a second laser light source, a first light valve, and a second light valve. The first laser light source provides a first laser beam in first time periods. The second laser light source provides a second laser beam in second time periods. A color refresh rate of the projection apparatus is the number of times of alternating the first and second time periods with each other, and the color refresh rate ranges between 60 Hz and 6000 Hz. The first and second laser beams respectively form a first color light and a second color light when exiting the illumination system. The first and second light valves are located on a transmission path of the first color light. One of the first and second light valves is located on a transmission path of the second color light.

Projection apparatus and control method for projection apparatus

An illumination system, including a light source module, a phosphor wheel, a light recycling element, and a light uniformizing element, is provided. The light source module emits an excitation light beam. The phosphor wheel includes a phosphor region. At a second timing, the other part of the excitation light beam transmitted to the phosphor region forms an unconverted light beam and is transmitted to the light recycling element, and is reflected by the light recycling element to form a recycled light beam. A part of the recycled light beam is converted into a second converted light beam. A first converted light beam and the second converted light beam are transmitted to the light uniformizing element through a same path, so that the illumination system outputs second light in the illumination light beam. A projection apparatus is also provided.

An illumination system, including an excitation light source, a beam splitting filter device, and a wavelength conversion element, is provided. The excitation light source is configured to emit an excitation beam. The beam splitting filter device includes a light penetration region and a beam splitting filter region. The excitation beam penetrates the light penetration region to form a first beam. The excitation beam is reflected by the beam splitting filter region. The wavelength conversion element is disposed on a transmission path of the excitation beam coming from the beam splitting filter region. The wavelength conversion element is configured to convert the excitation beam coming from the beam splitting filter region to a conversion beam and transmit the conversion beam back to the beam splitting filter region, and the conversion beam at least partially penetrates the beam splitting filter region to form a second beam. A projection device is also provided.

An illumination system includes a first light source, a wavelength conversion device, a first light-splitting element, a light-filtering device, and a light-homogenizing element. The first light source provides a first light beam. The wavelength conversion device includes a single wavelength conversion material configured to convert the first light beam into a conversion light beam. The first light-splitting element is disposed on transmission paths of the first light beam and the conversion light beam. The light-filtering device is disposed on the transmission paths of the first light beam and the conversion light beam. The light-homogenizing element is disposed on the transmission paths of the first light beam and the conversion light beam. When the first light beam is transmitted to the light-homogenizing element, the first light beam is not incident on the wavelength conversion device. A projection apparatus including the illumination system is also provided.

An illumination system, an illumination control method and a projection apparatus are provided. The illumination system includes a first laser light source providing a first laser beam, and a light splitting module. When the first laser beam is incident to the light splitting module, a first portion of the first laser beam penetrates through the light splitting module, a second portion is reflected by the light splitting module. In the first illumination mode, the first laser beam is incident to the first light splitting region to form a first proportion of the first portion and the second portion. In the second illumination mode, the first laser beam is incident to the first light splitting region to form a second proportion of the first portion and the second portion, wherein the first proportion and the second proportion are different.

Illumination system, illumination control method and projection apparatus

A wavelength conversion module is configured to receive an excitation beam. The wavelength conversion module includes a substrate and a wavelength conversion material arranged on the substrate. The substrate includes a ring-shaped light irradiation region, and the wavelength conversion material is annularly arranged on at least part of the ring-shaped light irradiation region. A first color light obtained through conversion when the excitation beam is incident to the wavelength conversion material of the ring-shaped light irradiation region in a first time sequence has a first light intensity, the first color light obtained through conversion when the excitation beam is incident to the wavelength conversion material of the ring-shaped light irradiation region in a second time sequence has a second light intensity, and the first light intensity and the second light intensity are different. In addition, a projection device is also provided.

Wavelength conversion module and projection device

An illumination system and a projection apparatus including the illumination system are provided with a rotatable light splitting module, wherein when a light splitting element rotates, a first laser beam forms a first color light through a reflecting region of the light splitting element and a light combining element during a first time period, a second laser beam passes through the light combining element to form a second color light during the second time period and the fourth time period, the first laser beam forms a third color light by the wavelength conversion module and the light combining element after passing through the transmitting region of the light splitting element during the third time period, and the first color light, the second color light and the third color light from the light combining element form an illumination beam.

A polarizing rotation device including a rotation shaft, a driving element and a polarizing element is provided. The driving element is configured to drive the rotation shaft to rotate. The polarizing element is connected to the rotation shaft and is disposed on a transmission path of at least one beam, where the driving element is configured to drive the polarizing element to rotate sequentially while taking the rotation shaft as a rotation central axis, and when the polarizing element is rotated, the at least one beam penetrates through the polarizing element, and the at least one beam penetrating through the polarizing element has different polarization states at different time. Therefore, when a projection device is in a polarized stereoscopic mode, a color or brightness of a display image is uniform, and a user observes a 3D display image with good uniformity.

Polarizing rotation device and projection device

The invention provides an illumination system, configured to provide an illumination beam. The illumination system includes blue, green, and red laser modules respectively configured to provide blue, green, and red beams and a wavelength conversion component. The wavelength conversion component includes a wavelength conversion region and an optical output region. In a first time interval, the blue, green, and red beams are sequentially transmitted to the optical output region, where the illumination beam includes the blue, green, and red beams. In a second time interval, the blue beam is transmitted to the wavelength conversion region to form a converted beam, where the illumination beam includes the converted beam. A projection device including the illumination system is also provided. The projection device using the illumination system in the invention achieves color performance of a wide color gamut at relatively low costs.

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Hsin-Chu, Taiwan

Haw-Woei Pan