日本專利局最近公開的
Olympus 關於模組化相機的專利

雖看不太懂全部內容，但重點好像是在轉換接環，
相機的模組主要分成2個，除攝像部分(感光元件)外，
另一個是反光鏡，位相差AF及光學取景器部分，
看來這個模組化設計是為了讓將來M4/3相機也能使用4/3鏡頭時能進行位相差AF的設計，
也意味著是4/3系統消失後讓4/3系統鏡頭在M4/3上延命的對策




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【公開番号】 特許公開２０１０－１５２１４０

【公開日】 平成２２年７月８日（２０１０．７．８）

【発明の名称】 カメラシステム及び変換アダプタ

A camera body corresponding to a predetermined interchangeable lens and the above-mentioned predetermined interchangeable lens are camera systems which have a conversion adaptor for equipping with the above-mentioned interchangeable lens an interchangeable lens which differs in any they are at least and the above-mentioned camera body of shape of an applied part, and specification of control data,
The above-mentioned camera body possesses an image sensor for acquiring a picture based on light flux from a photographic subject,
The above-mentioned interchangeable lens possesses a taking lens to which light flux from a photographic subject is led,
The above-mentioned conversion adaptor,
A light flux dividing part which divides light flux from a photographic subject led with the above-mentioned taking lens of the above-mentioned interchangeable lens with which the conversion adaptor concerned is equipped,
A focus detection part which detects punctate [ on the above-mentioned image sensor of the above-mentioned camera body ] based on a part of above-mentioned light flux divided by the above-mentioned light flux dividing part,
An AF control part which performs a focus of the above-mentioned taking lens based on punctate [ which is detected by the above-mentioned focus detection part ] according to an AF control signal transmitted from the above-mentioned camera body,
A providing camera system.
[Claim 2]
The camera system according to claim 1, wherein the above-mentioned light flux dividing part is a half mirror.
[Claim 3]
The above-mentioned focus detection part passes through a pupil posion where the above-mentioned taking lenses differ, and phase difference data of an object image based on two or more light flux divided by the above-mentioned light flux dividing part is detected as the above-mentioned punctate,
The camera system according to claim 1, wherein the above-mentioned AF control part computes a defocusing amount of the above-mentioned taking lens and performs a focus of the above-mentioned taking lens based on a this computed defocusing amount from the above-mentioned phase difference data.
[Claim 4]
The camera system according to claim 3 after the above-mentioned AF control part's amending the above-mentioned phase difference data using correction value in which optional setting is possible with the above-mentioned camera body, wherein it computes the above-mentioned defocusing amount.
[Claim 5]
Correction value in which optional setting is possible with the above-mentioned camera body, The camera system according to claim 4 being the correction value for amending an image surface position gap between an imaging surface of imagination in which a part of above-mentioned light flux which was drawn with the above-mentioned taking lens and divided by the above-mentioned light flux dividing part carries out image formation, and an imaging surface which the above-mentioned image sensor has.
[Claim 6]
It is a conversion adaptor for the above-mentioned predetermined interchangeable lens to equip a camera body corresponding to a predetermined interchangeable lens with an interchangeable lens of shape of an applied part, and specification of control data in which any they are differ at least,
A light flux dividing part which divides light flux from a photographic subject led with a taking lens in an interchangeable lens with which the conversion adaptor concerned is equipped,
A focus detection part which detects punctate [ on an image sensor in the above-mentioned camera body ] based on a part of above-mentioned light flux divided by the above-mentioned luminous flux division means,
An AF control part which performs a focus of the above-mentioned taking lens based on punctate [ which is detected by the above-mentioned focus detection part ] according to an AF control signal transmitted from the above-mentioned camera body,
A providing conversion adaptor.














<參考>

E-5將是Olympus最後一台4/3相機??

43rumors.com
UPDATED-> (no rumor ranking) Quesabesde: The E-5 is the last FourThirds camera and there will be no more new FourThirds lenses (but will 43 continue to exist in a “different” way?)
http://43rumors.com/ft4-quesabesde-fourthirds-is-dead-the-e-5-is-the-latest-43-camera-and-there-will-be-no-more-43-lenses/

Zone-10 -> It is NOT predicting the end of FourThirds, just the merging of the technologies using modular construction and adaptors.
http://43rumors.com/zone-10-it-is-not-predicting-the-end-of-fourthirds-just-the-merging-of-the-technologies-using-modular-construction-and-adaptors/


43Rumors 消息－[FT4]43系統的變革
http://photofan.jp/camera/html/modules/newbb/viewtopic.php?viewmode=flat&topic_id=7527&forum=2

http://photofan.jp/camera/html/modules/newbb/viewtopic.php?topic_id=7527&forum=2&post_id=70958#forumpost70958
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