Young Optics Inc.

Yi-Hsueh Chen

Hsin-Hung Lin

Ya-Ling Hsu

Chao-Shun Chen

Sung-Nan Chen

Keng-Han Chuang

Ching-Yi Chen

Yu-Chen Chang

Yi-Hao Kang

Long-Sheng Liao

Jia-Bin Huang

Chi-Chui Yun

Ching-Lun Lin

Wan-Chiang Wang

Kun-Yao Chen

Zhan-Yu Liu

Yung-Kuang Liu

Li-Chiu Tsai

Chia-Lun Cheng

Chi-Chang Tien

Chia-Mao Chang

Chun-Tung Wu

A light combining module includes a first light source, a second light source, a first dichroic mirror, and an alignment structure. The first light source is used to output a first light. The second light source is used to output a second light. The first dichroic mirror is disposed on a transmission path of the first light and the second light, wherein the first light is incident on the second light source via the first dichroic mirror. The alignment structure adjusts the position of the second light source.

Light combining module

An optical apparatus including an image source and an optical component is provided. The image source is configured to provide an image beam. The optical component is disposed on a path of the image beam. A variation of temperature shown by the optical component is less than 25&#xb0; C., and a distortion of an image formed by the image beam due to the variation of temperature is less than 25 pixels.

Optical apparatus having organic-inorganic composite material

A wide-angle projection system includes a refraction unit and a reflection unit. The refraction unit includes a first lens group of positive refractive power and a second lens group of negative refractive power. The second lens group is disposed between the first lens group and the reflection unit and the condition: 0.9&#x3c;A/B&#x3c;1.4 is satisfied, where A denotes a distance along an optical axis of the wide-angle projection system and between the refraction unit and the reflection unit, and B denotes a total length of the refraction unit along the optical axis.

Wide-angle projection system

A projection lens configured to form an image from an image source which is disposed at an object side is provided. The projection lens includes a lens group and an aspheric mirror. The lens group has a first optical axis, and an intermediate image is formed by the lens group from the image source. The aspheric mirror has a second optical axis and an aspheric surface. The lens group is disposed between the object side and the aspheric mirror. The aspheric surface faces the lens group and reflects the intermediate image to form the image at an image side. The first optical axis is not coaxial with the second optical axis, and an offset of the image relative to the first optical axis is larger than or equal to 100%.

Projection lens

A projection lens provided is for projecting an image beam. The projection lens is disposed on a transmission path of the image beam and includes a first group of lenses and a second group of lenses. The first group of lenses includes a first spherical lens and a first aspheric lens. After the image beam passes through the first group of lenses, an intermediate image is formed between the first group of lenses and the second group of lenses, in which the first aspheric lens is the lens in the first group of lenses closest to the second group of lenses. A projection device using the projection lens is also provided. The projection device further includes a planar reflector on the transmission path of the image beam.

Projection lens including first lens group and second lens group and projection device including planar reflector

A projection lens for a projection device having a light valve is provided. The light valve provides an image light beam. The projection lens includes a first lens group, a second lens group and a reflecting lens group. The second lens group is disposed between the first lens group and the reflecting lens group. The first lens group has positive refractive power. The second lens group has positive refractive power and includes a plurality of lenses and an aperture stop located between the lenses. An angle of a field of view of the second lens group is less than 100 degrees. The reflecting lens has negative reflective power and has a curved reflecting surface to reflect the image light beam passed through the second lens group.

The image projection and capture apparatus for projecting an image beam to display an image on a screen and sensing a sensing beam from the image on the screen, the image projection and capture apparatus includes a light source, a light valve, a projection lens, an image capture lens, a dichroic unit, and an image sensor. The light source provides an illumination beam. The light valve is capable of converting the illumination beam to the image beam. The projection lens has a first optical axis. The image capture lens has a second optical axis. The first optical axis and the second optical axis are collinear. The dichroic unit is disposed between the projection lens and the image capture lens. The image sensor is disposed on a light path of the sensing beam.

Image projection and capture apparatus

A projection apparatus includes an illumination system providing an illumination light beam, a light valve disposed in a transmission path of the illumination light beam and converting the illumination light beam into an image light beam, a projection lens disposed in a transmission path of the image light beam, a first field lens, and a second field lens. The first field lens and the second field lens are disposed between the light valve and the projection lens and in the transmission paths of the illumination light beam and the image light beam. The first field lens is a positive meniscus lens with a first concave surface facing the projection lens. The second field lens is a positive meniscus lens with a second concave surface adjacent to the first field lens. The projection apparatus is capable of reducing a ghost image.

Projection apparatus

An illumination system includes a coherent light source providing an illumination beam, a light integrator positioned on a transmission path of the illumination beam, and a first actuator connected to the light integrator. The light integrator has a light entering end and a light exit end opposite to the light entering end, and the light entering end faces the coherent light source. The first actuator is capable of driving the light integrator to about a rotation axis perpendicular to a light axis of the illumination beam passing through the light integrator, so as to change a position at the light entering end entered by the illumination beam.

Illumination system having coherent light source and integrator rotatable transverse the illumination axis

An illumination system including a coherent light source and a speckle-reducing module is provided. The coherent light source is adopted for providing a light beam. The speckle-reducing module is disposed at an optical path of the light beam. The speckle-reducing module includes a rotator, a carrier and an optical path adjusting member. The rotator is adopted for rotating on a reference plane about a spindle axis passing through the rotator. The spindle axis is substantially perpendicular to the reference plane. The carrier is disposed at the rotator. The optical path adjusting member is disposed at the carrier and at the optical path of the light beam. The optical path adjusting member has an incident surface inclined at an angle with respect to the reference plane.

Illumination system

A color wheel module includes a color wheel having a side face defining a plurality of color regions and a detection region, a light source for emitting light beams toward the side face of the color wheel and a light detection device for detecting the light beams from the color regions and the detection region in order to locate position of the color regions and the detection region.

Growing community of inventors

Hsinchu, Taiwan

Yi-Hsueh Chen