Patents by Inventor Kuo Wen Chang

Kuo Wen Chang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9013813
    Abstract: An optical imaging lens set includes: a first lens element with positive refractive power having an image-side surface with a convex part in a vicinity of a circular periphery of the first lens element, a second lens element having an object-side surface with a convex part in a vicinity of a circular periphery of the second lens element, a third lens element having an object-side surface with a concave part in a vicinity of a circular periphery of the third lens element, a fourth lens element having a concave object-side surface, and a plastic fifth lens element having an image-side surface with a concave part in a vicinity of the optical axis. The air gap between the second lens element and the third lens element G23, and the air gap between the third lens element and the fourth lens element G34, satisfied the relation 1.40?G23/G34.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 21, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Sheng-Wei Hsu, Tzu-Chien Tang
  • Publication number: 20150103419
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Application
    Filed: December 4, 2014
    Publication date: April 16, 2015
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng Wei Hsu
  • Patent number: 8988795
    Abstract: An imaging lens includes plastic-made first, second, third, and fourth lens elements arranged in the given order from an object side to an imaging side. The first lens element has a positive focusing power and is biconvex. The second lens element has a negative focusing power, is biconcave, and has an abbe number not greater than 30. The third lens element has a positive focusing power and has a convex imaging-side surface facing toward the imaging side. The fourth lens element has an imaging-side surface formed with a concave area in a vicinity of an optical axis of the fourth lens element. The imaging lens further includes an aperture stop disposed between the first and second lens elements.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: March 24, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Poche Lee, Kuo-Wen Chang, Long-Sheng Liao
  • Publication number: 20150070785
    Abstract: An imaging lens includes first, second, third, fourth, and fifth lens elements arranged from an object side to an image side in the given order. The first, second, and third lens elements have positive, negative, and negative refractive powers, respectively. The third lens element has an image-side surface having a convex portion in a vicinity of a periphery of the third lens element. The fourth lens element has a concave object-side surface. The fifth lens element has an object-side surface that has a convex portion in a vicinity of an optical axis of the imaging lens, and an image-side surface that has a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of a periphery of the fifth lens element.
    Type: Application
    Filed: November 13, 2014
    Publication date: March 12, 2015
    Inventors: KUO-WEN CHANG, Poche Lee, Sheng-Wei Hsu
  • Patent number: 8976463
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: March 10, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng Wei Hsu
  • Publication number: 20150062723
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Though controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: KUO-WEN CHANG, Poche Lee, Wei-Yu Lo
  • Patent number: 8967814
    Abstract: An imaging lens includes a lens barrel having a base wall with a light incident hole around an optical axis, an imaging unit disposed in the lens barrel and including imaging components arranged along the optical axis, and a light shielding plate having an annular fixing portion for positioning the light shielding plate and a bent portion bent from an inner periphery of the fixing portion and extending slantingly toward the optical axis. The light shielding plate is disposed at one of a position between the base wall and one of the imaging components that is adjacent to the base wall, and a position between two adjacent ones of the imaging components.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: March 3, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventor: Kuo-Wen Chang
  • Publication number: 20150055230
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Application
    Filed: May 28, 2014
    Publication date: February 26, 2015
    Applicant: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng Wei Hsu
  • Patent number: 8964307
    Abstract: An imaging lens includes first, second, third, fourth, and fifth lens elements arranged from an object side to an image side in the given order. Through surface designs of the lens elements, the imaging lens has a relatively short overall length while maintaining good optical performance.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: February 24, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng-Wei Hsu, Tzu-Chien Tang
  • Patent number: 8958163
    Abstract: An optical imaging lens includes first, second, third, fourth and fifth lens elements positioned sequentially from an object side to an image side. The first lens element with positive refractive power has an object-side surface comprising a convex portion in the optical axis vicinity. The second lens element with negative refractive power has an object-side surface comprising a convex portion in the optical axis vicinity and an image-side surface comprising a concave portion in the optical axis vicinity. The third lens element has an image-side surface comprising a convex portion in the periphery. The fourth lens element has an image-side surface comprising a convex portion in the optical axis vicinity. The fifth lens element has an object-side surface comprising a convex portion in the optical axis vicinity and an image-side surface comprising a concave portion in the optical axis vicinity and a convex portion in the periphery.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: February 17, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Wei-Yu Lo
  • Patent number: 8953255
    Abstract: An imaging lens includes first, second, third, fourth, and fifth lens elements arranged from an object side to an image side in the given order. The first, second, and third lens elements have positive, negative, and negative refractive powers, respectively. The third lens element has an image-side surface having a convex portion in a vicinity of a periphery of the third lens element. The fourth lens element has a concave object-side surface. The fifth lens element has an object-side surface that has a convex portion in a vicinity of an optical axis of the imaging lens, and an image-side surface that has a concave portion in a vicinity of the optical axis and a convex portion in a vicinity of a periphery of the fifth lens element.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: February 10, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng-Wei Hsu
  • Patent number: 8937775
    Abstract: An imaging lens includes plastic-made first, second, third, and fourth lens elements arranged in the given order from an object side to an imaging side. The first lens element has a positive focusing power and is biconvex. The second lens element has a negative focusing power, is biconcave, and has an abbe number not greater than 30. The third lens element has a positive focusing power and has a convex imaging-side surface facing toward the imaging side. The fourth lens element has an imaging-side surface formed with a concave area in a vicinity of an optical axis of the fourth lens element. The imaging lens further includes an aperture stop disposed between the first and second lens elements.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: January 20, 2015
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Poche Lee, Kuo-Wen Chang, Long-Sheng Liao
  • Patent number: 8934181
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Though controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: January 13, 2015
    Assignee: GeniuS Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Wei-Yu Lo
  • Publication number: 20150009582
    Abstract: An imaging lens includes plastic-made first, second, third, and fourth lens elements arranged in the given order from an object side to an imaging side. The first lens element has a positive focusing power and is biconvex. The second lens element has a negative focusing power, is biconcave, and has an abbe number not greater than 30. The third lens element has a positive focusing power and has a convex imaging-side surface facing toward the imaging side. The fourth lens element has an imaging-side surface formed with a concave area in a vicinity of an optical axis of the fourth lens element. The imaging lens further includes an aperture stop disposed between the first and second lens elements.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 8, 2015
    Inventors: Poche Lee, Kuo-Wen Chang, Long-Sheng Liao
  • Publication number: 20150002723
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned sequentially from an object side to an image side. Through controlling the convex or concave shape of the surfaces and/or the refracting power of the lens elements and designing an equation, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Application
    Filed: October 31, 2013
    Publication date: January 1, 2015
    Applicant: GeniuS Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Sheng Wei Hsu, Chih-Yang Yeh
  • Publication number: 20150002722
    Abstract: An imaging lens includes first to fifth lens elements arranged from an object side to an image side in the given order. The image-side surface of the first lens element has a convex portion in a vicinity of its periphery. The object-side surface of the second lens element has a concave portion in a vicinity of its periphery. The image-side surface of the second lens element has a convex portion in a vicinity of its periphery. The object-side surface of the third lens element has a concave portion in a vicinity of its periphery. The fourth lens element has a positive refractive power, and the object-side surface thereof has a concave portion in a vicinity of an optical axis. The fifth lens element is made of a plastic material.
    Type: Application
    Filed: October 31, 2013
    Publication date: January 1, 2015
    Applicant: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Sheng-Wei Hsu, Chih-Yamg Yeh
  • Patent number: 8922915
    Abstract: An imaging lens includes plastic-made first, second, third, and fourth lens elements arranged in the given order from an object side to an imaging side. The first lens element has a positive focusing power and is biconvex. The second lens element has a negative focusing power, is biconcave, and has an abbe number not greater than 30. The third lens element has a positive focusing power and has a convex imaging-side surface facing toward the imaging side. The fourth lens element has an imaging-side surface formed with a concave area in a vicinity of an optical axis of the fourth lens element. The imaging lens further includes an aperture stop disposed between the first and second lens elements.
    Type: Grant
    Filed: June 12, 2014
    Date of Patent: December 30, 2014
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Poche Lee, Kuo-Wen Chang, Long-Sheng Liao
  • Patent number: 8913330
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 16, 2014
    Assignee: Genius Electronic Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng Wei Hsu
  • Publication number: 20140347746
    Abstract: Present embodiments provide for a mobile device and an optical imaging lens thereof. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side. Through controlling the convex or concave shape of the surfaces of the lens elements to allow the thickness of the second lens element and the sum of all air gaps between all five lens elements along the optical axis satisfying the relation: 0.20<T2<0.50 (mm) and 0.27<(T2/Gaa)<0.40, the optical imaging lens shows better optical characteristics and the total length of the optical imaging lens is shortened.
    Type: Application
    Filed: May 28, 2014
    Publication date: November 27, 2014
    Applicant: Genius Electronics Optical Co., Ltd.
    Inventors: Kuo-Wen Chang, Poche Lee, Sheng Wei Hsu
  • Publication number: 20140293460
    Abstract: An imaging lens includes plastic-made first, second, third, and fourth lens elements arranged in the given order from an object side to an imaging side. The first lens element has a positive focusing power and is biconvex. The second lens element has a negative focusing power, is biconcave, and has an abbe number not greater than 30. The third lens element has a positive focusing power and has a convex imaging-side surface facing toward the imaging side. The fourth lens element has an imaging-side surface formed with a concave area in a vicinity of an optical axis of the fourth lens element. The imaging lens further includes an aperture stop disposed between the first and second lens elements.
    Type: Application
    Filed: June 12, 2014
    Publication date: October 2, 2014
    Inventors: Poche Lee, Kuo-Wen Chang, Long-Sheng Liao