FOLDED LENS SYSTEM WITH THREE REFRACTIVE LENSES

    公开(公告)号:US20200033565A1

    公开(公告)日:2020-01-30

    申请号:US16593888

    申请日:2019-10-04

    Applicant: Apple Inc.

    Abstract: Compact folded lens systems are described that may be used in small form factor cameras. Lens systems are described that may include three lens elements with refractive power, with a light folding element such as a prism, located between a first lens element on the object side of the lens system and a second lens element, that redirects the light refracted from the first lens element from a first axis onto a second axis on which the other lens elements and a photosensor are arranged. The lens systems may include an aperture stop located behind the front vertex of the lens system, for example at the first lens element, and an optional infrared filter, for example located between the last lens element and a photosensor.

    Folded lens system with three refractive lenses

    公开(公告)号:US10437023B2

    公开(公告)日:2019-10-08

    申请号:US15472138

    申请日:2017-03-28

    Applicant: Apple Inc.

    Abstract: Compact folded lens systems are described that may be used in small form factor cameras. Lens systems are described that may include three lens elements with refractive power, with a light folding element such as a prism, located between a first lens element on the object side of the lens system and a second lens element, that redirects the light refracted from the first lens element from a first axis onto a second axis on which the other lens elements and a photosensor are arranged. The lens systems may include an aperture stop located behind the front vertex of the lens system, for example at the first lens element, and an optional infrared filter, for example located between the last lens element and a photosensor.

    FOLDED LENS SYSTEM
    33.
    发明申请
    FOLDED LENS SYSTEM 审中-公开

    公开(公告)号:US20190196148A1

    公开(公告)日:2019-06-27

    申请号:US16226510

    申请日:2018-12-19

    Applicant: Apple Inc.

    Abstract: A folded lens system that includes lenses with refractive power and two light folding elements such as prisms. A first lens on a first axis refracts light to a first folding element. The first folding element redirects the light from the first axis onto a second axis on which one or more lenses are arranged. The lenses on the second axis refract the light to a second folding element. The second folding element redirects the light onto a third axis on which a sensor is disposed. The lens system may include a front aperture. The sensor may be moved on the third axis to provide autofocusing, or alternatively the lens system may include one or more optical actuators that provide autofocusing. The lens system may have a low F-number (

    LENS SYSTEM WITH OPTICAL ACTUATOR
    34.
    发明申请

    公开(公告)号:US20190170914A1

    公开(公告)日:2019-06-06

    申请号:US16323769

    申请日:2017-08-08

    Applicant: Apple Inc.

    Abstract: Compact lens systems that may be used in small form factor cameras. The lens system may include a master lens with two or more lens elements arranged along an optical axis and having refractive power, and an optical actuator located on the object side of the master lens that may provide autofocus (AF) and/or optical image stabilization (OIS) functionality for the camera. An aperture stop for the camera may be included in the optical actuator, for example between a substrate and a flexible optical element of the optical actuator. Including the aperture stop in the optical actuator rather than in the lens stack may allow the optical actuator to be smaller in the X-Y dimensions (perpendicular to the optical (Z) axis) than it would be in a similar camera with the aperture stop located in the lens stack.

    Folded lens system with four refractive lenses

    公开(公告)号:US10234659B2

    公开(公告)日:2019-03-19

    申请号:US15472132

    申请日:2017-03-28

    Applicant: Apple Inc.

    Abstract: Compact folded lens systems are described that may be used in small form factor cameras. Lens systems are described that may include four lens elements with refractive power, with a light folding element such as a prism, located between a first lens element on the object side of the lens system and a second lens element, that redirects the light refracted from the first lens element from a first axis onto a second axis on which the other lens elements and a photosensor are arranged. The lens systems may include an aperture stop located behind the front vertex of the lens system, for example at the first lens element, and an optional infrared filter, for example located between the last lens element and a photosensor.

    FOLDED LENS SYSTEM WITH FOUR REFRACTIVE LENSES

    公开(公告)号:US20170276912A1

    公开(公告)日:2017-09-28

    申请号:US15472132

    申请日:2017-03-28

    Applicant: Apple Inc.

    CPC classification number: G02B13/0065 G02B13/004 G02B27/0025 H04N5/23212

    Abstract: Compact folded lens systems are described that may be used in small form factor cameras. Lens systems are described that may include four lens elements with refractive power, with a light folding element such as a prism, located between a first lens element on the object side of the lens system and a second lens element, that redirects the light refracted from the first lens element from a first axis onto a second axis on which the other lens elements and a photosensor are arranged. The lens systems may include an aperture stop located behind the front vertex of the lens system, for example at the first lens element, and an optional infrared filter, for example located between the last lens element and a photosensor.

    Near-infrared imaging lens
    37.
    发明申请

    公开(公告)号:US20170123192A1

    公开(公告)日:2017-05-04

    申请号:US15017637

    申请日:2016-02-07

    Applicant: APPLE INC.

    CPC classification number: G02B13/14 G02B5/208 G02B13/004 G02B27/0018

    Abstract: An optical system for operation at a target near-infrared (NIR) wavelength in imaging an object onto an image plane. The system includes the following optical elements, arranged in order from object side to image side: a first lens, including a first material having a first index of refraction at the target NIR wavelength and having a positive refractive power; a second lens comprising the first material and having a meniscus shape; a third lens comprising the first material and having a meniscus shape; and a fourth lens, including a second material having a second index of refraction at the target NIR wavelength that is lower than the first index of refraction, and having front and rear surfaces of an aspheric form. The aspheric coefficients are chosen so that rays are not totally internally reflected within the fourth lens to impinge on the image plane.

    LENS SYSTEM
    38.
    发明申请
    LENS SYSTEM 审中-公开

    公开(公告)号:US20170115471A1

    公开(公告)日:2017-04-27

    申请号:US15285898

    申请日:2016-10-05

    Applicant: Apple Inc.

    Abstract: Compact narrow angle lens systems that may be used in small form factor cameras. The lens system may include six lens elements with refractive power, and may provide lower F-numbers while maintaining or improving imaging quality and package size when compared to other compact lens systems. Total track length of the lens system may be 6.5 millimeters or less, for example 5.9 or 6 millimeters. Focal length of the lens system may be 7.0 millimeters or less, for example 6.6 millimeters. The lens system may include an aperture stop located behind the front vertex of the lens system, for example between the first and second lens elements, that effectively moves the ideal principal point of the camera to in front of the front vertex. The lens system may provide a focal ratio of 2.8 or less, for example 2.6 or 2.4.

    Optical system including lenses and prism for telephoto cameras

    公开(公告)号:US12216260B2

    公开(公告)日:2025-02-04

    申请号:US18448853

    申请日:2023-08-11

    Applicant: Apple Inc.

    Abstract: An optical system for a camera may include a lens group having a plurality of lenses, a prism, and an image sensor. The prism may be positioned, optically, between the plurality of lenses and the image sensor along the optical transmitting path of the light. The prism may include at least four surfaces, which may fold the light within the prism at least four times to guide the light from the plurality of lenses passing through the prism to the image sensor. The prism may include multiple prisms joined together using an optical cement. The prism may include one or more aperture masks inside the prism to reduce flare.

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