Coretronic Corporation

Chi-Hsun Wang

Ko-Shun Chen

Chi-Tang Hsieh

Hao-Wei Chiu

Chang-Hsuan Chen

Chia-Hao Wang

Kun-Liang Jao

Hou-Sheng Wang

Hsuan-I Wu

Yin-Cheng Lin

Chien-Chung Liao

Shang-Hsuang Wu

Wen-Yen Chung

Ming-Tsung Weng

Wei-Min Chien

Te-Tang Chen

Tzu-Yi Yang

De-Sheng Yang

Chia-He Hsu

An illumination system includes a coherent light source, a first light-combining device, an optical wavelength conversion module, and a first auxiliary light source. The coherent light source emits a coherent light beam. The first light-combining device is disposed on a transmission path of the coherent light beam. The light wavelength conversion module is disposed on a transmission path of the coherent light beam transmitted from the first light-combining device and converts the coherent light beam into a first converted light beam, and reflects the first converted light beam back to the first light-combining device. The first auxiliary light source emits a first auxiliary light beam which is transmitted to the first light-combining device. The first light-combining device combines the first auxiliary light beam and the first converted light beam. A projection apparatus and a method for driving the illumination system are also provided.

Illumination system, projection apparatus and method for driving illumination system

An illumination system including an excitation light source, a wavelength conversion element and a filter element is provided. The excitation light source is used for emitting an excitation beam. The wavelength conversion element has a wavelength conversion region. When the wavelength conversion region is cut into a transmission path of the excitation beam, the wavelength conversion region is excited by the excitation beam and emits a converted beam. A reference plane is perpendicular to the transmission path of the converted beam and is angled such that an acute angle is formed between the reference plane and the filter wheel which is disposed on a transmission path of the converted beam coming from the wavelength conversion element. The filter element allows a part of the converted beam to penetrate so as to output at least one color beam, and reflects another part of the converted beam.

Illumination system and projection apparatus

An illumination system includes a plurality of light source modules and at least one condenser lens. Each of the light source modules includes a first color light source and a wavelength conversion element. The first color light source is configured to provide a first color beam as an excitation beam. The wavelength conversion element is disposed on a transmission path of the first color beam and configured to convert the first color beam into a converted beam. The at least one condenser lens is disposed on transmission paths of the plurality of converted beams from the plurality of wavelength conversion elements and the plurality of first color beams. A projection apparatus including the illumination system is also provided.

Projection apparatus and illumination system thereof

A projection apparatus including an illumination system, a light valve, and an image-forming system is provided. The illumination system includes a first dichroic unit, a second dichroic unit, a third dichroic unit, two wavelength conversion modules, two light sources respectively emitting a first beam and a second beam, and an excitation light source module emitting an excitation beam. The first dichroic unit and the second dichroic unit are disposed on a transmission path of the excitation beam. The two wavelength conversion modules respectively convert the corresponding partial excitation beam coming from the first dichroic unit and the second dichroic unit into two converted beams. The light valve converts the first beam, the two converted beams, and the second beam coming from the third dichroic unit into an image beam. The image-forming system is disposed on a transmission path of the image beam.

Projection apparatus and illumination system having wavelength conversion modules

A light source module including a blue laser light source, an adjusting light source, a wavelength conversion device, and a light combiner is provided. The wavelength conversion device is disposed on an optical path of a first blue beam provided by the blue laser light source and an optical path of an adjusting beam provided by the adjusting light source. When a first transmissive area of the wavelength conversion device is cut into the optical path of the first blue beam, the blue laser light source and the adjusting light source are simultaneously turned on. A transmission direction of the first blue beam passing through the first transmissive area is opposite to a transmission direction of the adjusting beam passing through the first transmissive area. The light combiner combines the first blue beam and the adjusting beam into a second blue beam. Moreover, a projection apparatus is provided. The light source module and the projection apparatus in the invention may adjust a blue beam complied with a wider color gamut specification, and is easy to achieve an image with wider color gamut.

Light source module for adjusting blue beam and projection apparatus using the same

An illumination system including at least one light source, a reflection cover, a wavelength conversion element, and a filter element is provided. A focal point of the reflection cover is disposed on an extension line of a transmission path of an excitation beam provided by the light source, and an opening of the reflection cover is adjacent to the focal point. The wavelength conversion element penetrates through the opening, and has a light-action region. The light-action region is disposed on the transmission path of the excitation beam, and converts the excitation beam into a conversion beam. The reflection cover is disposed on a transmission path of the conversion beam. The filter element is disposed on a transmission path of the conversion beam from the reflection cover. The conversion beam from the reflection cover is obliquely incident to the filter element, and the filter element filters the conversion beam.

Illumination system and projection apparatus having reflection cover

An illumination system and a projection device are disclosed. The illumination system includes laser light sources, a color wheel element and light combiners. The laser light sources provide laser lights of different colors. One of the laser light sources is disposed on an optical axis. The color wheel element is disposed on the optical axis and on a transmission path of the laser lights, and adjusts wavelengths of the laser lights. The light combiners are disposed on the optical axis and between the laser light source and the color wheel element. The light combiners are pervious to the laser lights or reflect the laser lights to combine the laser lights on the optical axis. The illumination system uses the laser light sources to provide lights of different colors, and in collaboration with a configuration structure of the optical elements thereof, the laser lights with a wider color gamut are provided.

Illumination system and projection device

An illumination system including a coherent light source device, a light delivery module, and a light wavelength conversion module is provided. The coherent light source device includes a light emitting source and a light collimating element. The light emitting source is adapted to emit at least one coherent light beam. The light collimating element is located on a transmission path of the at least one coherent light beam from the light emitting source and collimates the at least one coherent light beam. The light delivery module is located on a transmission path of at least one coherent light beam from the light collimating element and includes a first lens. The first lens has a lens array surface adapted to diverge any of the coherent light beam from the light collimating element. A projection apparatus is also provided.

Projection apparatus and illumination system

An illumination system includes a coherent light source, a first light-combining element, an optical wavelength conversion module, and a first auxiliary light source. The coherent light source emits a coherent light beam. The first light-combining element is disposed on a transmission path of the coherent light beam. The light wavelength conversion module is disposed on a transmission path of the coherent light beam transmitted from the first light-combining element and converts the coherent light beam into a first converted light beam, and reflects the first converted light beam back to the first light-combining element. The first auxiliary light source emits a first auxiliary light beam which is transmitted to the first light-combining element along the transmission path of the coherent light beam. The first light-combining element combines the first auxiliary light beam and the first converted light beam. A projection apparatus is also provided.

A wavelength conversion device including a main body and a transparent element is provided. The main body has at least one wavelength conversion region, a containing recess portion, and a stop portion. The containing recess portion and the stop portion encircle a closed slot. The transparent element is disposed in the closed slot to construct a light penetration region. The stop portion stops the transparent element along a radial direction of the main body. Moreover, a projector using the wavelength conversion device is also mentioned.

Wavelength conversion device and projector

An illumination system including at least one laser source, at least one anisotropic light expanding element and a wavelength conversion element is provided. The at least one laser source emits a laser beam. The at least one anisotropic light expanding element is disposed on the transmission path of the laser beam and causes the laser beam to expand along a light expanding direction. The light expanding direction is substantially parallel to the slow axis of the laser beam. The wavelength conversion element is disposed on the transmission path of the laser beam. A projection apparatus is also provided.

A light wavelength conversion module including a substrate, a first light wavelength conversion layer, and a first light transmissive layer is provided. The substrate has a light passing-through area and a first light wavelength conversion area. The first light wavelength conversion layer is located at the first light wavelength conversion area and between the first light transmissive layer and the substrate. The first light wavelength conversion layer is suitable for converting a coherent light beam into a first conversion light beam, wherein wavelengths of the coherent light beam and the first conversion light beam are different from each other. An illumination system and a projection apparatus are also provided.

Light wavelength conversion module, illumination system, and projection apparatus

An illumination system including at least one laser light source, a wavelength conversion device, and a two-dimensional (2D) anisotropic diffusion sheet is provided. The laser light source emits a laser beam, and the wavelength conversion device is located on a transmission path of the laser beam. The 2D anisotropic diffusion sheet is located on the transmission path of the laser beam and between the laser light source and the wavelength conversion device. Besides, the 2D anisotropic diffusion sheet allows the laser beam to have an increasing degree of a divergent angle in a first direction greater than an increasing degree of a divergent angle in a second direction. The first direction is substantially parallel to a slow axis of the laser beam. A projection apparatus is also provided.

A wavelength conversion device including a main body and a transparent component is provided. The main body has at least one wavelength conversion region and a slot. The transparent component is disposed in the slot to form a light transmission region, wherein one of the main body and the transparent component has at least one groove, and another one of the main body and the transparent component is engaged with the groove, such that the main body and the transparent component are fixed together. In addition, a projector having the wavelength conversion device is also provided.

A light source module including an exciting light source, a wavelength conversion module, and a light combining unit is provided. The exciting light source is capable of providing an exciting light beam. The wavelength conversion module includes at least one wavelength conversion reflecting portion and a wavelength conversion portion which cut into the transmission path of the exciting light beam alternately. When the wavelength conversion portion cuts into the transmission path of the exciting light beam, part of the exciting light beam which passes through the wavelength conversion portion is a first color light beam and another part of the exciting light beam is converted into a second color light beam by the wavelength conversion portion. The color of the second color light beam is different from that of the exciting light beam. A projection apparatus is also provided.

Growing community of inventors

Hsin-Chu, Taiwan

Chi-Hsun Wang