HK1202641A1 - 用於縮短物鏡焦距的光學附件 - Google Patents

用於縮短物鏡焦距的光學附件

Info

Publication number
HK1202641A1
HK1202641A1 HK15103245.0A HK15103245A HK1202641A1 HK 1202641 A1 HK1202641 A1 HK 1202641A1 HK 15103245 A HK15103245 A HK 15103245A HK 1202641 A1 HK1202641 A1 HK 1202641A1
Authority
HK
Hong Kong
Prior art keywords
reducing
focal length
objective lens
optical attachment
attachment
Prior art date
Application number
HK15103245.0A
Other languages
English (en)
Inventor
．考德威爾
Original Assignee
Caldwell Photographic Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caldwell Photographic Inc filed Critical Caldwell Photographic Inc
Publication of HK1202641A1 publication Critical patent/HK1202641A1/zh

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/56—Accessories
    • G03B17/565—Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/10—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by adding a part, e.g. close-up attachment
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B9/00—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or -
    • G02B9/34—Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
HK15103245.0A 2013-08-05 2015-03-31 用於縮短物鏡焦距的光學附件 HK1202641A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361862294P 2013-08-05 2013-08-05
US14/329,896 US8903232B1 (en) 2013-08-05 2014-07-12 Optical attachment for reducing the focal length of an objective lens

Publications (1)

Publication Number Publication Date
HK1202641A1 true HK1202641A1 (zh) 2015-10-02

Family

ID=51948470

Family Applications (1)

Application Number Title Priority Date Filing Date
HK15103245.0A HK1202641A1 (zh) 2013-08-05 2015-03-31 用於縮短物鏡焦距的光學附件

Country Status (3)

Country Link
US (1) US8903232B1 (zh)
CN (1) CN104345436B (zh)
HK (1) HK1202641A1 (zh)

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JP6165675B2 (ja) * 2014-05-28 2017-07-19 富士フイルム株式会社 リアアタッチメントレンズ
US10565734B2 (en) 2015-04-15 2020-02-18 Google Llc Video capture, processing, calibration, computational fiber artifact removal, and light-field pipeline
US10412373B2 (en) 2015-04-15 2019-09-10 Google Llc Image capture for virtual reality displays
US10540818B2 (en) 2015-04-15 2020-01-21 Google Llc Stereo image generation and interactive playback
US11328446B2 (en) 2015-04-15 2022-05-10 Google Llc Combining light-field data with active depth data for depth map generation
US10469873B2 (en) 2015-04-15 2019-11-05 Google Llc Encoding and decoding virtual reality video
US10444931B2 (en) 2017-05-09 2019-10-15 Google Llc Vantage generation and interactive playback
US10419737B2 (en) 2015-04-15 2019-09-17 Google Llc Data structures and delivery methods for expediting virtual reality playback
US10341632B2 (en) 2015-04-15 2019-07-02 Google Llc. Spatial random access enabled video system with a three-dimensional viewing volume
US10275898B1 (en) 2015-04-15 2019-04-30 Google Llc Wedge-based light-field video capture
US10440407B2 (en) 2017-05-09 2019-10-08 Google Llc Adaptive control for immersive experience delivery
US10567464B2 (en) 2015-04-15 2020-02-18 Google Llc Video compression with adaptive view-dependent lighting removal
US10546424B2 (en) 2015-04-15 2020-01-28 Google Llc Layered content delivery for virtual and augmented reality experiences
US9979909B2 (en) 2015-07-24 2018-05-22 Lytro, Inc. Automatic lens flare detection and correction for light-field images
TWI629534B (zh) * 2016-03-04 2018-07-11 先進光電科技股份有限公司 光學成像系統（三）
US10275892B2 (en) 2016-06-09 2019-04-30 Google Llc Multi-view scene segmentation and propagation
KR102551430B1 (ko) 2016-12-01 2023-07-05 버클리 라잇츠, 인크. 미세-객체들을 이미징하기 위한 장치들, 시스템들 및 방법들
US10679361B2 (en) 2016-12-05 2020-06-09 Google Llc Multi-view rotoscope contour propagation
US10594945B2 (en) 2017-04-03 2020-03-17 Google Llc Generating dolly zoom effect using light field image data
US10474227B2 (en) 2017-05-09 2019-11-12 Google Llc Generation of virtual reality with 6 degrees of freedom from limited viewer data
US10354399B2 (en) 2017-05-25 2019-07-16 Google Llc Multi-view back-projection to a light-field
US10545215B2 (en) 2017-09-13 2020-01-28 Google Llc 4D camera tracking and optical stabilization
US10965862B2 (en) 2018-01-18 2021-03-30 Google Llc Multi-camera navigation interface
JP7490433B2 (ja) * 2020-04-13 2024-05-27 キヤノン株式会社 縮小光学系および撮像装置
JP2021167920A (ja) * 2020-04-13 2021-10-21 キヤノン株式会社 縮小光学系および撮像装置
JP7490432B2 (ja) 2020-04-13 2024-05-27 キヤノン株式会社 縮小光学系および撮像装置
CN111624741B (zh) * 2020-07-03 2024-08-20 深圳市爵影科技有限公司 减焦增光附加镜
CN216210172U (zh) * 2020-08-31 2022-04-05 深圳市大疆创新科技有限公司 光学系统、拍摄装置及可移动平台
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US8879901B2 (en) * 2011-09-13 2014-11-04 Caldwell Photographic, Inc. Optical attachment for reducing the focal length of an objective lens

Also Published As

Publication number Publication date
US8903232B1 (en) 2014-12-02
CN104345436B (zh) 2019-02-22
CN104345436A (zh) 2015-02-11

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