經濟部中央標準局員工消費合作社印製 318900 A7 B7 五、發明説明（） 發明背景： 本發明係關於一種立體照相櫬·尤其是關於一種藉由 一棱鏡觀景器將左、右透鏡畫面之二分之一合成為一完整 晝面之立體照相機。 按習用之立體照相櫬具有兩組平行並排共置於一機體 之攝影透鏡。反射型之立體照相機係分別透過左、右五角 梭鏡觀看左、右攝影透鏡之晝面；另外•測距儀式之立艘 相櫬係賴由一測距儀觀景器或一實像觀景器觀看攝影視界。 反射型之立體照相機具有讓使用者可藉由攝影透鏡觀 看被攝取晝面之優點•但由於該二晝面必須雙眼同時觀看 •操作起來比用單眼觀看較困難》尤其是左、右耋面距離 大於雙眼距離（約63.5mm)之立體照相櫬更難以用兩眼同 時觀看•而該距離係受透鏡外徑與透鏡裝置结構之尺度大 小所限制。 習用立體照相櫬之左、右透鏡之間距係固定不變•由 於左右透鏡視界之差異•其非重叠部份將形成於左右晝面 之外•必須將不具立體效果之非重叠部份予以遮蔽•因而 有盡面損失之缺點。 有鑑於此*本發明人乃提供一種具有一稜鏡組合之立 體照相機，係藉由左、右攝影透鏡視界之外側二分之一部 份（底Η暍光面之内側二分之一部份）合成一完整之晝面 *藉由一觀景器便可觀察到被合成之物像；其中具有一調 節透鏡光軸間距離之裝置•該裝置係與焦點調節機構相連 動·因此於合焦距雛時左、右攝影透鏑之視界將成為一致 ，進而抑止畫面損失（日本專利第8-053476號）。 -1- 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐） ----------装-----^---1Τ------^ ~ ί (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印裴 318900 Α7 _Β7_ 五、發明説明（） 該種立體照相機可於觀察觀景器晝面之左右二分之一 部份畫面之物像偏差時調整焦距•使左右透鏡之視界達到 合焦距離•而觀景器畫面並無左右二分之一區域之物像偏 差。當觀景器晝面之左右二分之一部份出現正常成像時· 即完成該被攝物體之對焦。 如圖19钧所示為一圓形物趙，圃19⑹、19(c)、19(d)所 示為該立體照相機之觀景器内之成像。圖19㈤之物體係定 位於該觀景器之中央位置，如圖19⑹所示，該物體位於焦 點位置時將圼規實際之彤狀；如圖19(c)所示•該物體逭於 焦距時將圼擴張狀態：如画19紉所示•該物體近於焦距時 將呈壓縮狀態。於是可藉由觀察觀景器内左右二分之一成 像之側面偏差，調整焦距。 然而事實上並非在所有情況晝面中之物體都可對準於 焦距上》被攝取物經常與不同距離的物體混合成像。當對 某特定物體完成對焦之時•同搛晝面中較近距雛之其他物 體將產生透鏡光軸間距離修正最不足之現象。因為人眼之 視覺會注視近距離範圍之物體》混合不同距離之物體將藉 由一立體滑動座被觀察者接收•其中近距離範圍之物體係 以極近之距雛對焦·而非自然觀看。為了修正此現象•必 須在合成物像時適當地遮蔽左右畫面之外部區域。 因此•近距離攝影時或在主要被攝物體與透鏡之間不 存在其他物體之狀況•就可有效抑止晝面損失，該立體相 櫬之结構可使左、右透鏡之視界在比焦距更近之距雛時也 達成一'致。 -2- 本紙浪尺度適用中國國家標準（CNS > Α4说格（210Χ297公釐） ----------^-----_--.訂------0 ί I- (請先閲讀背面之注意事項再瑣寫本頁) 318500 A7 __B7_ 五、發明説明（） 如圖20所示，一虛線點出之指數曲線A顯示透視鏡之 光軸間距離/焦點調節時之移動軌跡•其視界範圃將恆常 在焦距上達成一致。如圃21所示·係透鏡焦距為36mm *左 右曝光面間距為β6ππα時指數曲線A之情況。 假設使用一枚薄透鏑•其中： 透續之焦距為---------------------fPrinted by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 318900 A7 B7 V. Description of the invention () Background of the invention: The present invention relates to a stereoscopic camera. In particular, it concerns the use of a prism viewfinder to divide the left and right lens frames. One-third is synthesized into a full-day stereo camera. The conventional stereo camera has two sets of parallel photography lenses placed side by side in a body. Reflective stereo cameras are used to view the daytime surface of the left and right photographic lenses through the left and right pentagonal shuttle lenses; in addition, the stand-up vessel of the distance measuring ceremony depends on a rangefinder viewfinder or a real image viewfinder Watch the horizon of photography. The reflection type stereo camera has the advantage that the user can view the captured daytime surface through the photographic lens • However, since the two daytime surfaces must be viewed with both eyes at the same time • It is more difficult to operate than with one eye. Especially the left and right side faces Stereo photography with a distance greater than the distance between the two eyes (about 63.5mm) is more difficult to view simultaneously with both eyes. The distance is limited by the lens outer diameter and the size of the lens device structure. In conventional stereo photography, the distance between the left and right lenses is fixed. Due to the difference in the field of view of the left and right lenses. The non-overlapping parts will be formed outside the left and right day surfaces. The non-overlapping parts that do not have a three-dimensional effect must be blocked Therefore, it has the disadvantage of full loss. In view of this, the present inventors have provided a stereo camera with a combination of 珜 鏡, through the left and right photographing lens, the outer half of the field of view (the inner half of the bottom H light surface) ） Synthesize a complete day surface * The object image can be observed through a viewfinder; it has a device to adjust the distance between the optical axes of the lens. The device is connected with the focus adjustment mechanism. Therefore, it is at the focal length The perspectives of the left and right photographic dysprosium will become the same at the time of hatching, thereby suppressing the picture loss (Japanese Patent No. 8-053476). -1- This paper scale is applicable to China National Standard (CNS) Α4 specification (210Χ297mm) ---------- installed ----- ^ --- 1Τ ------ ^ ~ ί (Please read the precautions on the back before filling out this page) Employee's Consumer Cooperative of the Central Bureau of Standards, Ministry of Economic Affairs, Printing and Printing Co., Ltd. 318900 Α7 _Β7_ V. Description of invention () This kind of stereo camera can observe about half of the daytime of the viewfinder Adjust the focal length when the object image of part of the picture is deviated. • Make the horizon of the left and right lenses reach the focal distance. • There is no object image deviation of the left and right half of the viewfinder screen. When a normal image appears on the left and right half of the viewfinder, the focus of the subject is completed. As shown in Figure 19 Jun, it is a circular object Zhao, and Pu 19⑹, 19 (c), 19 (d) shows the imaging in the viewfinder of the stereo camera. The object system in Figure 19 (v) is positioned at the center of the viewfinder. As shown in Figure 19⑹, the object will be in actual shape when it is at the focus position; as shown in Figure 19 (c) • When the object is in focus Expanded state: As shown in Picture 19, the object will be compressed when it is close to the focal length. Therefore, the focal length can be adjusted by observing the lateral deviation of the left and right half of the image in the viewfinder. However, in fact, not all objects in the daylight can be aligned on the focal length in all cases. The ingested object is often mixed with objects of different distances for imaging. When focusing on a particular object • Other objects in the same day that are closer to each other will produce the phenomenon that the distance between the lens optical axes is most insufficiently corrected. Because the vision of the human eye will gaze at objects in a short range, objects mixed at different distances will be received by the observer through a three-dimensional sliding seat. The object system in the close range focuses at a very close distance, rather than natural viewing. To correct this phenomenon, the outer areas of the left and right frames must be properly masked when the composite image is formed. Therefore, during close-up photography or when there is no other object between the main subject and the lens, it can effectively suppress the diurnal loss. The stereoscopic structure allows the left and right lenses to have a closer vision than the focal length. The distance between them also reached a consensus. -2- This paper wave scale is applicable to the Chinese National Standard (CNS> Α4 said grid (210Χ297mm) ---------- ^ -----_--. 訂 定 ------ 0 ί I- (Please read the precautions on the back before writing this page) 318500 A7 __B7_ V. Description of the invention () As shown in Figure 20, the exponential curve A indicated by a dotted line shows the distance / focus between the optical axes of the perspective mirror Movement trajectory during adjustment • The field of view of the horizon will always agree on the focal length. As shown in Garden 21 • The focal length of the lens is 36mm * The case of exponential curve A when the distance between the left and right exposure surfaces is β6ππα. Dysprosium • Among them: the continuous focal length is --------------------- f
物體與透鏡中心點之距離------------L 透鏡之焦點與成像位置之距離--------Aif 於是，根據^if = f /L - f ·二透鐮中心點之間距 相對於底片表面之距雛將為f + ΔΙί·。 另外·該立體照相機左右曝光面之間距為PI ·左右透 鏡使左右視界範圍達到一致之位移量為S1。可適用下列 公式： SI = (Pl/2) X (f2 + if/L + f + Δίί) 即左右透鏡可藉由一位移量S1朝相互接近之方向移動 ，根據上述公式*物艘至透鏡中心點之距濉L將逐漸減少 。該指數曲線A係上述公式之軌跡。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 請參見圖21 * —連鱭直線B係左右透鍊根據指數曲線 A從無限逭之焦距位置F1至使透鏡視界達一致之最近距離 焦點位置Fs之軌跡變化•除最近焦點位置Fs之外*左右透 鏡之視界將在近距離之焦距範圍達成一致。如果左右透鏡 係沿一靠近直線B臀曲之曲線之焦點調節範圍移動•遠近 距雛感視實際攝影狀況而定，便可使其他物體可於臨近主 要物體之焦點距離被攝取。 然而•當前述之立體照相機結合光軸間距雛與焦距調 -3 - 本紙浪尺度通用中國國家標準（CNS ) A4規格（2丨0X 297公釐） 經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明（） 節裝置之線性移動時•該左右透鏡舍從視界調節範圍於最 短焦距S2達成一致（直線B之情況）·或者於所有焦距範 園達成一致（直線B内側接近直線之曲線之情況）之位置 再次向内移動•埴時將可看到如圖19(c)所示呈擴張狀之物 體成像•即使該物髁巳經對焦，因此具有無法對觀察到之 物像偏差對焦之缺點。 為解決上述技術問題•並且使左右對焦畫面可藉由一 觀景器觀察·本發明乃提供一種具有光袖間距離/焦點調 節裝置之立艘照相機•其光軸間距離將配合實際攝影狀態 修正•從而根據觀景器影像精確地調整焦距。本發明之目 的即為解決上述之技術問題。 發明概述： 為達到上述目的·本發明提供一種立體照相機•其中 包括兩組相互平行共置於一機體之單透鏡反射照相機。各 組單透鏡照相機分別包含：一稜鏡觀景器•用以將左右攝 影透鏡視界之外側二分之一部份合成為一完整晝面》其中 該稜鏡係藉由一稜鏡滑動座朝接近或遠雛觀景器之左右二 分之一之成像位置方向滑動；一光軸間距離/焦點調節裝 置*用Μ使左右攝影透鏡沿一連接無限遠與最近距雛之焦 點軌跡之直線斜行；一連動裝置係用以連動該棱鏡滑動座 與光軸間距離/焦點調節裝置*該光軸間距離/焦點調節 裝置可使焦點軌跡里一與左右二光袖相互平行之直線•且 恆常位於左右棱鏡觀景器鏡耋面之中央。 本發明提供一種立體照相機，其中該稜鏡觀景器係由 多數個棱鏡或由一稜鏡與一反射鏡組合構成•其中該將左 -4- 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐}· ----------1装-----„--β------浪 (請先閲讀背面之注意事項再填寫本頁) A7 318900 B7_ 五、發明説明（） (請先閲讀背面之注意事項再填寫本頁) 右二分之一部份之耋面合成一完整耋面之稜鏡或反射鐮係 賴由該棱縯滑動座朝接近或遠離觀景器之左右二分之一成 像位置之方向滑動。 圆示說明： 圖1係本本發明之立體照相機申請專利範臑第一項之實施 例之正視圖。 圖2係圖1之立賭照相機之剖面圖。 圖3係圖1之立級照相機之适視圖。 圃4揭示圖3之立體照相櫬中之稜鏡組；其中4树係一平 * v ; - .JT ； ! 面圖· 4⑹係一正視圖，4叻係一係一後 視圖，4铂係延A-A線之視圃，視圖。 圖5係圖1之立體照相機之透鏡滑動凸輪裝置之剖面圖。 圖6係揭示一習用立體照相櫬中一固定稜鏑與觀景器畫面 間關係之示意圖。 圖*7係揭示圖3之立髖照相機之滑動之稜鏡與觀景器耋面 間關係之示意圖。 圖8係掲示4中本發明之立體照相機申請範圍第二項之另 一實施例之正視圖。 圖9係圖8之立體照相機之稜鏡組之透視圖。 經濟部中央標準局員工消費合作社印装 _10掲示圖9之立體照相機中之梭鏡組；其中10㈤係一後 視圖，10⑹係一平面圖，1〇(«=)係一前視圖* l〇(«=H系一 底視圖· 10轉係圖10⑹沿A-A線之視圖· 1〇的係一側 視圖。 圓111㈣係圖9之中央梭鏡之平面画•圖11⑸係中央梭鏡之 滑動裝置之縱剖面圖。 -5- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 318900 Α7 Β7 經濟部中央標準局負工消費合作社印裝 五、發明説明（） 圖12係掲示圖8之稜縯組與主鏡晝面闞係之示意圓。 黼13係稜嫡組之另一實胞例之透視圖》 圃14係稜鏑組之再一實施例之透視圖。 圖15揭示圖14之梭鏑組·其中圖15㈤係一平面圖· 15⑹偽 一前視圖· 15(〇>係一底視圖· 15(d)係一後視圓· 15㈣ 儀15(bj沿A-A線之視圖· 15CF)係一側視圖。 圖18㈤係圖14之中央棱鏡之前視圖，圆180=ί係該中央梭嫌 之滑動座之縱剖面。 圖17係圖14之稜鏡組與觀景器盡面間靦係之示意圖。 圖18係稷鏡組之又再一實施例之透視圖。 圖19㈤係一被攝物體•圖19㈦，19(c) » 19(d)係具有光軸間 距離/焦點調節裝置之立體照相櫬之觀景器耋面之 示意圖。 圖20係掲示立體照相機左右透鏡視界恆常保持一致之光軸 間距離/焦點調節裝置軌跡之示意圖。 圖21係左右透鏡中心點軌跡之示意圖*其中Α為左右透鏡 之視界短常保持一致時之指數曲線軌跡·B為多次變 化量之直線軌跡。 詳细說明： 鼸1與2揭示一立體照相機1，其中左右攝影透鏡4R 與4L係裝設於相機機體2正面之左右透鏡板3R與3L，一稜 鏡5位於該相櫬機體2之中間位置；一觀景器裝置包括： 一接眼透鏡6 ·該稜鏡5Μ及位於該稜鏡5左、右側之垂 直反射鏡7R與7L。 參見圖3與圖4，該棱鏡5係光學樹脂或光學玻璃材 -6- 本紙張尺度適用中國国家標準（CNS ) Α4悦格（210Χ 297公釐） ----------私衣-------1Τ------線 ί ί (請先閲讀背面之注意事項再瑣寫本頁) 318900 A7 B7 經濟部中央標準局員工消費合作社印装 五、發明説明（） 料一艘成形構成。一横向90°反射稜鏡組9R與9L係與一 180 °反射棱鏡組8之下投射面之左右二分之一相结合· 該180 °反射稜鏡組8係用Μ改變投射光線與上下平行之 被反射光線之光跡。與90**反射棱鏡組9R與9L外側横向相 互垂直之平面係為投射面*該稜鏡15之全部寬度係與該立 艘照相櫬1之感光晝面相同·或略為超過。 參見圖2 ·該左右反射鏡7R與7L係位於該稜鏡5之左 右側》係繞樞軸10R與10L進行水平方向之旋轉。照相時· 反射鏡7R與7L係於稜鏡5之兩側面方向從呈45°之靜止狀 態隨光軸相對旋轉•再随同透鏡4R、4L與底片表面之間之 光跡退回。 參見圖3 ·當反射婉7R、7L處於靜止狀態時·左右透 鏡視界之外側二分之一畫面（曝光面之内側二分之一）將 經由該二反射鏡7R與7L反射圼左右倒置•再向稜鏡5之90‘ 反射棱鏡組投射9R、9L。晝面經由該90°反射稜鏡組9R · 9L之反射面RP1以及該180°反射稜鏡組8之反射面RP2， RP3進行三次全反射》再由左右透鏡之攝影調節範圍之外 側二分之一之正立像合成一虛像於該180° 反射稜鏡組8 之上投影面8a。當棱鏡5之90°反射稜鏡組9R與9L之投射 面與焦點面交錯時•可藉由觀察該焦點面上對焦之實像對 焦0 參見圖2 ·該棱鏡5與左右透鏡板3R, 3L偽與組合於 機體2正面里傾斜狀之左右滑動板11R, 11L相卿接。該梭 鏡5係固設於中央滑動板12上進行直線前後滑動•該左右 透鏡板3R、3L與滑動板11R、11L之組合將使左右攝影透鏡 -7- 本紙張尺度適用中國國家標準（CNS ) Λ4規格（21〇X 297公釐） 請 先 閲 讀 背 面 意 事 項 再 填 裝 頁 訂 318900 A7 B7 經濟部中央橾準局貝工消費合作社印装 五、發明説明（) 4R、4L中心點之移動軌跡成為如圖21所示之直線B。 左右滑動赞13R、13L係由該左右透縯板3R、3L向後延 伸》與位於櫬髖2之右側或左側之一凸輪軸14相啣接。該 梭縯5後方設有一彈簧（圈未示），用以驅動固設於該梭 鏞5底部之滑動臂15，使該凸輪軸14之稜鏞滑動凸輪16作 動。 圖5揭示該滑動臂13與凸輪袖14之情形。該凸輪袖14 之漸開線凸輪17係與一凹陷入滑動臂13之矩形斷面構槽13a 相嵌合•並使該漸閭線凸輪17與該溝槽13a之間隙儘可能 地小》以消除其反作用力•以便精確調節焦距。 如画2所示•一旋轉鈕18位於該凸輪軸14之一端，可 用手指轉動使該左右透鏡板3R、3L傾斜地前後滑動•朗接 近或逭離被攝物體方向前進或退後。該稜鏡5類似該左右 透鏡板3R、3L，亦随該凸輪軸14之轉動逍行前後滑動。 該稜鐮5之凸輪裝置•將使焦點軌跡與左右攝影透鍊 4R、4L之光袖相互平行位於觀景器左右畫面之中央•且恆 常以透鏡中心點之直線軌跡穿過稜鏡5中央•如圖21所示 。因此當稜鏡5随焦點在近距離同步前後移動時·該稜鋳 5係處於與焦點連動狀態。 即使省略圖示•該透鏡板與不同形狀之梭鏡凸輪裝置 皆可配合使用*並不在侷限範圍内。 該稜鏡5與觀景器晝面間之位置關係敘述如後。圖6 掲示一習用固定稜鏟型之立體照相機之示意圖•圖7掲示 本發明之立體照相櫬之示意圃。 如圖6所示，於穿過該立體照相櫬中央延長線之物像 一 8一 本紙张尺度逋用中國國家標準（CNS ) A4規格（210X297公釐） ----------^-------IT------0 - ! (請先閱讀背面之注意事項再續寫本頁) 318900 A7 B7 經濟部中央標準局員工消費合作社印装 五、發明説明（） 係以直線方式經由左右攝影透縯21R、21L穿過左右曝光面 22R、22L之中央位置•於反射嫌23R、23L轉向進入棱鏡24 之投射面。該锇鏡24係位於左右90°反射稜縯組25R、25L 交接處中央頂點·可使左右耋面於中央位置達成一致。該 左右攝影透鏡21R、21L係根據一指數曲線A移動·左右視 界變化範圍係恆常處於一焦點調節範圍•如圖20所示。於 是》左右攝影透鏡21R、21L係與焦距從無限遠至最近距離 之被攝物體之左右耋面置於同樣位置》如圖19所示•可藉 由觀察觀景器內物像位置之偏差調整焦距。 另一方面*鑑於本發明立體照相櫬1之左右攝影透鏡 4R、4L係進行斜向直線滑動•如鼴7所示以直線B之情況 移動•除在最近攝影距離之情況外·焦點位置之物體將變 換至內側之曝光面。物體距離為無限适時·光線係與光軸 相互平行地穿過左右攝影透鏡4R、4L之中央•如圖7所示 •光線經由左右反射鏡7R、7L反射並投射至稜鏡5後方為 止（圖7之下方）。直線投射於近距離對焦情況時，該稜 鏡5係賴與凸輪裝置連動之攝影透鏡4R、4L退回。該凸輪 裝置撤回該稜鏡5之位移相當於後方之光跡消失量。位於 該立體照相櫬中央延長線上之焦點軌跡之物像將視透鏡之 變化量與左右90°反射稜鏡組9R、9L交叉線中央頂點成為 一致；如圖19(b)所示，係一完整之畫面》其焦距可藉由觀 看觀景器之物像偏差調整*類似習用之立體照相機。 圖8掲示本發明之立體照相機之另一實施例。一種具 有與圖2之立體照相櫬1同樣結構之立髖照相機31之光軸 間距離/焦點調節裝置•其中左右透鏡板32R、32L以及左 -9- 本紙張尺度適用中國國家標準（CNS ) A4規格（2丨〇x297公釐> ----------^-------1T------^ f (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印装 A7 B7 五、發明説明（） 右攝影透鏡33R、33L係延一直線B傾斜移動。如同一般單 透縯反射照相櫬•該照相櫬31後部具有作為上下轉動之支 點•左右反射鏑34R、34L反射之光線將投射向一稜嫌組35 進入相櫬櫬體。 參見圖9與10，該稜鐮組35具有三個稜鏑·· 36、37R 、37L ·其中該中央稜鏡36之形狀係取決於二90°反射稜 鏡組與其呈Μ字形结合•並藉由一滑動座進行前後濟動· 容後詳述。該梭鏡37R、37L係以對稱方式分別置於該中央 稜鏡36之左右側》與該左右9<Γ反射稜鏡組互圼90°狀。 該稜鏡組35之全部寬度等於或稍大於該立體照相櫬31之左 右曝光面之間距•其中該中央稜鏡36之全部寬度亦為等於 或稍大於耋面之寬度。 該左右梭鏡37R、37L係為下方平面之投射面*該下方 平面係位於左右焦點板38R、38L之内側二分之一部份•用 Μ將向焦點板38R、38L投射之光線轉朗向中央部份•使光 線進入中央棱鏡36之側面。如圃9所示*由較低方向投射 至左右棱鏡37R、37L之光線被反射三次·從該中央梭練36 之投射面36a水平向後投射◊該左右梭鏡37R、37L之下方 之平面係由焦點平面之底面玻璃構成，故焦點板38R、38L 可以省略。 上下左右倒置之物像•經過該攝影透鏡33R、33L而圼 上下倒置•經過反射鏡34R、34L呈正立左右相反之像於焦 點板38R、38L。該左右焦點板之內側二分之一部份之成像 係左右對稱相反•即該左右攝影透鏡33R、33L之攝影調節 範圍之外側二分之一部份經由棱鏡36呈左右對稱反置。因 -10- 本紙伕尺度適用中國國家標準（CNS ) Μ規格（210X297公釐） ----------裝----L--1T------線 (請先閲讀背面之注意事項再填寫本頁) 318900 Α7 Β7 經濟部中央標準局員工消費合作社印製 五、發明説明（） 此該左攝影透鏔33L之視界之外側二分之一部份呈現之正 立像被投射至中央稜縯36之投影面36a之左邊二分之一部 份。於是該右透縯33R之視界之外側二分之一部份所圼現 之正立像投射至該投射面36a之右側二分之一部份•進而 形成一完整之耋面。 圖11揭示該中央稜鏑36之滑動座。該中央梭縯36係固 設於一滑動座39 *並賴由一壓縮猓簧40向前驅動。一稜鏑 滑動凸輪42係與一與圖2之立體照相櫬1相同之焦點/光 軸間距離調節凸輪（圖未示）Μ同樣軸心定位於一凸輪軸 41 ·該滑動稜練之凸輪軸41係透過一槓桿43與該中央梭鏡 36連接在一起。 該中央稜鏡36係藉由旋轉光軸間距離/焦點調節裝置 上之旋轉紐產生與攝影透鏡前後位移相反方向之位移•恰 與圖2中之立體照相機1方向相反；參見圖12 *位於立體 照相機中央延長線上之焦距物像將随攝影透鏡33R、33L之 位置與中央梭鏡36之左右90°反射棱鏡組交叉線中央頂點 成為一致：如圖19(b)所示•觀看時為一完整之畫面•並 可藉由觀察觀景器影像之偏差調整焦距。 圖13係圖9所示之梭鏡組之另一實施例•其中一具中 央棱鏡作用之三角反射鏡44，取代了中央稜鏡36之位置。 該反射鏡44係藉由一滑動座與圖11所示之該光軸間距離/ 焦點調節裝置連動》焦點係根據觀景器影像之偏差而調節 •類似圖12所示。 圖14與圖15係圆19所示之稜鏑組之再一實施例•其中 一棱鏡組51係由一固定稜鏡52與一中央上方稜鏡53所構成 -11- 本紙張尺度適用中國國家標準（CNS ) Λ4規格（210X297公釐） — .1 I 裝 I I I I I 訂—.I I I I 線 i - (請先閲讀背面之注意事項再績寫本頁) 經濟部中央標準局員工消費合作社印製 318900 A7 B7 五、發明説明（） •該棱鏡組51可上下濟動進行三次90°之全反射，類似圖 9所示之梭練組35。 該固定稜鏡52係呈梯形狀之90°反射棱鏡組54R、54L 對稱地相接於於中央下方之90**反射稜縯54C之左右側。 該中央上方梭鏡53正面係呈Μ字形•以90°角與反射棱嫌 相互平行連接。該中央上方稜鏡53偽嵌入該固定稜鏡52左 右側之梯形狀90°反射稜鏡54R、54L上方之玻璃•以進行 上下滑動。 如圖14所示•左右焦點板55R、55L内側二分之一之影 像投射向該固定棱練52呈梯形狀之左右90β反射梭縯54R 、54L之下方平面•該固定棱鏡52係裝設於焦點板54R、54L 上，Μ便經由反射面RP1、RP2、RP3進行三次全反射•再 由中央較低部位之垂直投影面52a左右二分之一晝面合成 為一正立之完整晝面。 圖16揭示圖14、15所示之該中央上方稜鏡53之滑動座 。該中央上方稜鏡53係固設於一滑動座56 ·並藉由一壓力 彌簧57驅動。類似圆11所示之稜鏡滑動裝置，一活動凸輪 59係與焦點/光袖間距離調節凸輪（圖未示）Μ—凸輪軸 58Μ同軸心旋轉•該活動凸輪59與中央上方稜鏡53偽藉由 一横桿60及一挺禪βΐ相接合。 該中央上方稜鏡53係藉由旋轉光軸間距離/焦距調節 裝置上之旋轉妞操作•随攝唐透鏡之前後移動上下滑動。 如圖17所示，當攝影透鏡62R、62L從無限逭向最近距雛前 進呈昇起狀態時•該中央上方稜鏡53係於下端位置滑動。 位於該立髖照相櫬中央延長線上之焦距物像•將與中央上 -12- 本紙張尺度適用t國國家標準（CNS) A4規格（210X297公釐} ----------赛--------1Τ------^ i Λ (請先閲讀背面之注意事項再續寫本頁) 318900 經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明（） 方稜鏡53之左右90°反射梭鏡組交叉線中央頂點達成一致 *如画19⑹所觀察到之情形，當移動焦距時·將如圈19(c) 與19(〇0所示•可根據觀察觀景器物像位置之偏差調整焦距。 參見圃18 · —與中央上方稜鏑53具同樣功能之三角形 反射鏞63被置於圖14之稜鏡組51之中央上方稜嫌53之位置 。該反射鏑63係與光袖間距離/焦點調節裝置連動》藉由 如圖16所示之滑動座進行上下移動•焦距可根據觀景器物 像之位置偏差調整·類似圖17之情況。 上述關於本發明之立趙照相櫬》該用於將左右二分之 一之攝影晝面合成一完整畫面之稜鏡•係與該光軸間距離 /焦點調節裝置埋動自動瞄準對焦；位於焦距上之物體係 位於觀景器左右成像之中央•恆常介於左右攝影透鏡之光 軸之間。再者》該位於焦距上之物體可依據觀察觀景器畫 面之情況對焦•無闞於光袖間距離随焦距之校正量。因此 本發明可提供一種具有高度性能且操作方便之立體照相櫬 •克服習用之立體照相櫬對焦困難之缺失。 本發明並非僅限於上述實施例之範圍》在本發明之技 術、範圍內可能有種種之改變•這些改變當然都屬本發明 範園。 -13- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） ----------^----1 -ItT------^ ( r (請先聞讀背面之注意事項再瑣寫本頁)The distance between the object and the center of the lens ------------ L The distance between the focal point of the lens and the imaging position -------- Aif So, according to ^ if = f / L-f · 2 The distance between the center point of the sickle and the surface of the negative film will be f + ΔΙί ·. In addition, the distance between the left and right exposure surfaces of the stereo camera is PI. The displacement of the left and right lenses to match the left and right fields of view is S1. The following formula can be applied: SI = (Pl / 2) X (f2 + if / L + f + Δίί) That is, the left and right lenses can move toward each other by a displacement S1, according to the above formula The distance between points will gradually decrease. The exponential curve A is the locus of the above formula. Printed by the Employee Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs (please read the precautions on the back before filling in this page). Please refer to Figure 21 *-even the straight line B is the left and right through chain according to the exponential curve A The trajectory change of the closest focal point position Fs when the lens field of view is consistent • In addition to the closest focal point position Fs * The horizons of the left and right lenses will be agreed on the focal length range of the short distance. If the left and right lenses move along a focus adjustment range that is close to the curve of the hip curve of the straight line B. The distance sense depends on the actual shooting conditions, so that other objects can be captured at the focus distance near the main object. However, when the aforementioned stereo camera combines the optical axis spacing and the focal length adjustment -3-the original paper wave standard common Chinese national standard (CNS) A4 specification (2 丨 0X 297 mm) printed by the Ministry of Economic Affairs Central Standards Bureau employee consumer cooperatives A7 B7 V. Description of the invention () When the device moves linearly • The left and right lenses are adjusted from the field of view at the shortest focal length S2 (in the case of line B) • or at all focal lengths (the curve on the inside of line B is close to the line The position) moves inward again • When you are at the bottom, you will see an object that is dilated as shown in Figure 19 (c). • Even if the object is in focus, it is not possible to focus on the observed object image deviation. Shortcomings. In order to solve the above technical problems, and make the left and right focus images can be observed through a viewfinder, the present invention provides a stand-up camera with an optical sleeve distance / focus adjustment device. The distance between the optical axes will be corrected in accordance with the actual photography state. • The focus can be adjusted precisely according to the viewfinder image. The purpose of the present invention is to solve the above technical problems. SUMMARY OF THE INVENTION: To achieve the above object, the present invention provides a stereo camera, which includes two sets of single-lens reflex cameras parallel to each other and placed in a body. Each group of single-lens cameras includes: a 珜 鏡 viewfinder • used to synthesize the half of the outer side of the left and right photographic lenses into a complete day surface, where the 鏜 鏡 is directed by a 珜 鏡 slide seat Slide near or far from the imaging position of the left and right half of the viewfinder; an inter-optical axis distance / focus adjustment device * Use Μ to tilt the left and right photography lenses along a line connecting the focal path of infinity and the closest distance to the youngest Line; a linking device is used to link the distance between the prism sliding base and the optical axis / focus adjustment device * the distance between the optical axis / focus adjustment device can make the straight line parallel to the left and right optical sleeves in the focal track Often located in the center of the mirror surface of the left and right prism viewfinder. The present invention provides a stereo camera, wherein the prism viewfinder is composed of a plurality of prisms or a combination of a prism and a reflector. Among them, the left -4- the paper scale is applicable to the Chinese National Standard (CNS) Α4 specification (210Χ297mm) · ---------- 1 pack ----- „-β ------ wave (please read the precautions on the back before filling this page) A7 318900 B7_ 5. Description of the invention () (Please read the precautions on the back before filling out this page) The right half of the surface is combined into a complete surface of the prism or reflection sickle. The sliding seat is approached by the prism Or slide away from the left and right half of the imaging position of the viewfinder. Explanation of the circle: Figure 1 is the front view of the first embodiment of the patent application of the stereo camera of the present invention. Figure 2 is the stand of FIG. 1 Gambling camera cross-sectional view. Figure 3 is a suitable view of the stand-up camera of Figure 1. Garden 4 reveals the three-dimensional photography of the Hirano group in Figure 3; of which 4 trees are one level * v;-.JT;! 4⑹ is a front view, 4 is a series of a rear view, 4 platinum line is AA line view, view. Figure 5 is the stereo camera of Figure 1 Sectional view of the lens sliding cam device. Figure 6 is a schematic diagram showing the relationship between a fixed prism in a conventional stereo camera and the viewfinder frame. Figure * 7 is a schematic diagram showing the sliding view of the standing hip camera of Figure 3 A schematic diagram of the relationship between the viewfinder surfaces. FIG. 8 is a front view of another embodiment of the second item of the scope of application of the stereo camera of the present invention in FIG. 4. FIG. 9 is a perspective view of the Lehan group of the stereo camera of FIG. Printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs _10 shows the shuttle lens group in the stereo camera shown in FIG. 9; of which 10㈤ is a rear view, 10⑹ is a plan view, and 10 («=) is a front view * l〇 ( «= H is a bottom view · 10 turns of the system 10 ⑹ view along the line AA · 10 is a side view of the circle. Circle 111 ㈣ is the plane drawing of the central shuttle mirror of Figure 9 • Figure 11 ⑸ is the sliding device of the central shuttle mirror Longitudinal section drawing. -5- This paper scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) 318900 Α7 Β7 Printed by the Consumer Labor Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs V. Invention description () Figure 12 shows Figure 8 The prismatic group and the main face of the day mirror Italian circle. Perspective view of another real-cell example of the 13th prismatic group》 Perspective view of yet another embodiment of the prismatic dysprosium group of the 14th series. FIG. 15 reveals the shuttle dysprosium group of FIG. 14 · 15⑹ Pseudo-front view · 15 (〇 > is a bottom view · 15 (d) is a rear-view circle · 15㈣ Instrument 15 (bj view along line AA · 15CF) is a side view. Figure 18 (figure 14) The front view of the central prism, circle 180 = is the longitudinal section of the sliding seat of the central shuttle. Figure 17 is a schematic diagram of the relationship between the 珜 鏡 group and the viewfinder in Figure 14. Fig. 18 is a perspective view of still another embodiment of the Jiji group. Figure 19 (v) is a subject. Figure 19 (vi), 19 (c) »19 (d) is a schematic view of the viewfinder of a stereo camera with a distance / focus adjustment device between optical axes. Fig. 20 is a schematic diagram showing the distance between the optical axes / trajectories of the focus adjustment device of the stereo camera, the left and right lens fields of view are always consistent. Figure 21 is a schematic diagram of the trajectory of the center point of the left and right lenses * where A is the exponential curve trajectory when the horizons of the left and right lenses are always consistent and B is the straight trajectory of the amount of multiple changes. Detailed description: Mi 1 and 2 reveal a stereo camera 1, in which the left and right photographic lenses 4R and 4L are mounted on the front and left lens plates 3R and 3L of the camera body 2 and a prism 5 is located in the middle of the body 2 A viewfinder device includes: an eyepiece lens 6 · the tin 5M and vertical mirrors 7R and 7L located on the left and right sides of the tin 5. Refer to Figure 3 and Figure 4, the prism 5 is optical resin or optical glass material -6- This paper scale is applicable to China National Standard (CNS) Α4 Yuege (210Χ 297 mm) ---------- private Clothing ------- 1Τ ------ 线 ί ί (Please read the precautions on the back before writing this page) 318900 A7 B7 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs ) It is expected to form a ship. A horizontal 90 ° reflection prism group 9R and 9L are combined with a 180 ° reflection prism group 8 under the left and right half of the projection surface. The 180 ° reflection prism group 8 uses Μ to change the projected light parallel to the top and bottom The light trail of the reflected light. The plane perpendicular to the lateral sides of the outer sides of the 90 ** reflective prism groups 9R and 9L is the projection surface. * The full width of the 珜 鏡 15 is the same as or slightly exceeds the photosensitive day surface of the stand photo camera 1. See FIG. 2. The left and right mirrors 7R and 7L are located on the left and right sides of the 珜 鏡 5. The horizontal rotation is performed about pivots 10R and 10L. When taking pictures • The mirrors 7R and 7L are rotated relative to the optical axis from the static state of 45 ° on both sides of the 珜 鏡 5. Then, they follow the light trail between the lenses 4R, 4L and the surface of the negative film. See Figure 3. · When the reflections 7R and 7L are at rest, the half screen outside the field of view of the left and right lenses (the inner half of the exposure surface) will be reflected through the two mirrors 7R and 7L. 9R and 9L are projected to the 90 'reflecting prism group of Yanhan 5. The day surface passes through the 90 ° reflection prism group 9R · 9L reflection surface RP1 and the 180 ° reflection prism group 8 reflection surface RP2, RP3 performs three total reflections. Then, the left and right lenses are adjusted to the outer half One erect image synthesizes a virtual image on the projection surface 8a of the 180 ° reflecting yam group 8. When the projection surface of the 90 ° reflective prism group 9R and 9L of the prism 5 intersects the focal plane • It can be focused by observing the real image focused on the focal plane 0 See FIG. 2 Connect with the inclined left and right sliding plates 11R and 11L combined in the front of the body 2. The shuttle lens 5 is fixed on the central sliding plate 12 for linear back and forth sliding. The combination of the left and right lens plates 3R, 3L and the sliding plates 11R, 11L will make the left and right photographic lenses-7- This paper scale is applicable to the Chinese National Standard (CNS ) Λ4 specifications (21〇X 297 mm) Please read the back of the contents first and then fill in the pages and order 318900 A7 B7 Printed by the Central Bureau of Economic Affairs of the Ministry of Economic Affairs Beigong Consumer Cooperative Fifth, the description of the invention () 4R, 4L center point movement The trajectory becomes a straight line B as shown in FIG. 21. The left and right slides 13R and 13L are extended backward from the left and right rehearsals 3R and 3L "and are connected to a camshaft 14 located on the right or left side of the hip 2. A spring (not shown) is provided behind the shuttle 5 to drive the sliding arm 15 fixed on the bottom of the shuttle 5 to activate the prism slide cam 16 of the cam shaft 14. FIG. 5 shows the sliding arm 13 and the cam sleeve 14. The involute cam 17 of the cam sleeve 14 is fitted with a rectangular cross-sectional groove 13a recessed into the sliding arm 13 and the gap between the involute cam 17 and the groove 13a is as small as possible Eliminate its reaction force • In order to accurately adjust the focus. As shown in Picture 2 • A rotary button 18 is located at one end of the camshaft 14, and the left and right lens plates 3R, 3L can be slid forward and backward with a finger rotation. • Long approaches or retreats in the direction of the subject. The 珜 鏡 5 is similar to the left and right lens plates 3R, 3L, and also slides back and forth as the camshaft 14 rotates. The cam device of the corner sickle 5 will make the focal track and the optical sleeves of the left and right photographic transmission chains 4R and 4L parallel to each other and be located in the center of the left and right frames of the viewfinder. • As shown in Figure 21. Therefore, when Yan 5 moves forward and backward with the focus at close range synchronization, the edge 5 system is in a state of linkage with the focus. Even if the illustration is omitted, the lens plate can be used in conjunction with a shuttle lens cam device of different shapes * and is not limited. The positional relationship between the 珜 鏡 5 and the daytime surface of the viewfinder is described as follows. Figure 6 shows a schematic view of a conventional fixed-edge shovel type stereo camera. Figure 7 shows a schematic view of the stereo camera of the present invention. As shown in Figure 6, the object image that passes through the central extension line of the stereo camera is a piece of paper with a standard of Chinese National Standard (CNS) A4 (210X297mm) ---------- ^ ------- IT ------ 0-! (Please read the precautions on the back before writing this page) 318900 A7 B7 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs ) Is a straight line through the left and right photography through 21R, 21L through the central position of the left and right exposure surfaces 22R, 22L • The reflection surface 23R, 23L turns into the projection surface of the prism 24. The osmium mirror 24 is located at the central apex of the intersection of the left and right 90 ° reflection prism groups 25R and 25L. This allows the left and right planes to agree on the central position. The left and right photographic lenses 21R and 21L move according to an exponential curve A. The range of left and right field of view changes is always within a focus adjustment range. Therefore, the left and right photography lenses 21R and 21L are placed at the same position as the left and right sides of the subject with the focal length from infinity to the closest distance. focal length. On the other hand * Considering that the left and right photographic lenses 4R, 4L of the stereoscopic camera 1 of the present invention perform a linear slide in an oblique direction • As shown in Mo 7, move on a straight line B • Except in the case of the shortest photographing distance It will change to the exposed surface inside. The object distance is infinitely timely. The light rays pass through the center of the left and right photography lenses 4R, 4L parallel to the optical axis. • As shown in FIG. 7 • The light rays are reflected by the left and right mirrors 7R, 7L and projected to the rear of Lei 5 ( (Figure 7 below). When a straight line is projected at close range, the prism 5 relies on the photographing lenses 4R and 4L interlocked with the cam device. The displacement of the cam device withdrawing the 珜 鏡 5 is equivalent to the disappearance of the trailing light trail. The object image of the focal track on the central extension line of the stereo camera will change the amount of change of the viewing lens to the central vertex of the intersection line of 9R and 9L of the left and right 90 ° reflections; as shown in Figure 19 (b), it is a complete "Picture" The focal length can be adjusted by viewing the object deviation of the viewfinder * similar to the conventional stereo camera. FIG. 8 shows another embodiment of the stereo camera of the present invention. An inter-optical axis distance / focus adjustment device for a vertical hip camera 31 with the same structure as the stereo camera 1 of FIG. 2 • Among them, the left and right lens plates 32R, 32L, and left-9- This paper scale is applicable to the Chinese National Standard (CNS) A4 Specifications (2 丨 〇x297mm> ---------- ^ ------- 1T ------ ^ f (Please read the precautions on the back before filling this page) Printed by A7 B7 of the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs 5. Description of the invention () The right photographic lens 33R, 33L is tilted and moved along a straight line B. Just like a general single-transmission reflection photographic camera. Fulcrum • The light reflected by the left and right reflecting dysprosium 34R, 34L will be projected toward a prismatic group 35 into the cascade. Refer to FIGS. 9 and 10, the prismatic group 35 has three prisms. 36, 37R, 37L The shape of the central 稜鏡 36 depends on the combination of two 90 ° reflective 稜鏡 groups and its M-shaped shape. • It is moved forward and backward by a sliding seat. It will be described in detail later. The shuttle mirrors 37R and 37L are separated in a symmetrical manner. Placed on the left and right sides of the central 稜鏡 36 "and the 9 < Γ reflective 稜鏡 group of the left and right are mutually 90 ° shaped. The total width of the lens group 35 is equal to or slightly larger than the distance between the left and right exposure surfaces of the stereo camera 31. The total width of the central lens 36 is also equal to or slightly larger than the width of the mirror surface. The left and right shuttle mirrors 37R, 37L are It is the projection surface of the lower plane * The lower plane is located on the inner half of the left and right focus plates 38R, 38L • Use Μ to turn the light projected toward the focus plates 38R, 38L toward the center • Make the light enter the center The side of the prism 36. As shown in the garden 9 * The light projected from the lower direction to the left and right prisms 37R, 37L is reflected three times. The horizontal projection from the projection surface 36a of the central shuttle 36 is rearward ◊ The left and right shuttle mirrors 37R, 37L The lower plane is composed of the bottom glass of the focal plane, so the focus plates 38R and 38L can be omitted. Object images that are upside down and left and right are inverted The image is on the focus plates 38R, 38L. The imaging of the inner half of the left and right focus plates is bilaterally symmetrical. That is, the left and right photography lenses 33R, 33L are outside the half of the photography adjustment range. Some of them are symmetrically reversed by the prism 36. Because -10- this paper is applicable to the Chinese National Standard (CNS) M specifications (210X297mm) ---------- install ---- L-- 1T ------ line (please read the precautions on the back before filling in this page) 318900 Α7 Β7 Printed by the employee consumer cooperative of the Central Bureau of Standards of the Ministry of Economy V. Invention description () This left-hand photography reveals the perspective of the 33L The erect image presented on the outer half is projected to the left half of the projection surface 36a of the central prism 36. Then the right erect image of the right half of the right half of the 33R outside the field of vision is projected to the right half of the projection surface 36a • to form a complete projection. FIG. 11 shows the sliding seat of the central prism 36. The central shuttle 36 is fixed on a sliding base 39 * and is driven forward by a compression enthalpy spring 40. A prism dysprosium sliding cam 42 is the same focus / optical axis distance adjustment cam (not shown) as the stereo camera 1 in FIG. 2; the same axis is positioned on a cam shaft 41. The sliding prism cam shaft The 41 series is connected to the central shuttle mirror 36 through a lever 43. The central 珜 鏡 36 is generated by rotating the rotary button on the distance between the optical axes / focus adjustment device to produce a displacement in the opposite direction of the front and rear displacement of the photographic lens • exactly opposite to the direction of the stereo camera 1 in FIG. 2; see FIG. 12 * in stereo The focal length image on the central extension line of the camera will be consistent with the position of the photographic lenses 33R, 33L and the central vertex of the intersection line of the 90 ° reflecting prism group of the central shuttle 36, as shown in Figure 19 (b). • The focus can be adjusted by observing the deviation of the viewfinder image. Fig. 13 is another embodiment of the shuttle lens assembly shown in Fig. 9. A triangular mirror 44 with a central prism function replaces the position of the central prism 36. The mirror 44 is linked to the distance / focus adjustment device shown in FIG. 11 by a sliding base. The focus is adjusted according to the deviation of the viewfinder image. Similar to FIG. 12. Fig. 14 and Fig. 15 are still another embodiment of the prism-dysprosium group shown in circle 19. One of the prism groups 51 is composed of a fixed prism 52 and a prism 53 above the center. Standard (CNS) Λ4 specification (210X297mm) — .1 I installed IIIII order —.IIII line i-(please read the notes on the back before writing this page) 318900 A7 printed by the Staff Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs B7 V. Description of the invention () • The prism group 51 can move up and down to perform total reflection of 90 ° three times, similar to the shuttle group 35 shown in FIG. 9. The fixed prism 52 is a trapezoidal 90 ° reflecting prism group 54R, 54L symmetrically connected to the left and right sides of the 90 ** reflecting prism 54C below the center. The front surface of the center upper shuttle mirror 53 is M-shaped • It is parallel to the reflection ribs at a 90 ° angle. The upper 53 of the center is pseudo-embedded in the trapezoid shape of the left and right side of the fixed 52, and the glass above the 54R and 54L of the trapezoid shape is reflected to slide up and down. As shown in FIG. 14 • The inner half of the left and right focus plates 55R, 55L are projected toward the lower plane of the left and right 90β reflection shuttles 54R and 54L in a trapezoid shape of the fixed prism 52. The fixed prism 52 is installed on On the focus plates 54R and 54L, M performs three total reflections through the reflection surfaces RP1, RP2, and RP3. Then, the vertical daylight plane 52a on the lower part of the center is combined to form an upright complete daylight plane. Fig. 16 reveals the sliding seat of the central upper 53 as shown in Figs. 14 and 15. The upper center 53 is fixed to a sliding base 56 and driven by a pressure spring 57. Similar to the 珜 鏡 sliding device shown in circle 11, a movable cam 59 is a distance adjustment cam between the focal point and the optical sleeve (not shown) Μ—the cam shaft 58M rotates coaxially • The movable cam 59 is pseudo with the 珜 鏡 53 above the center By a bar 60 and a Zen β 1 joined. The upper center of the center 53 is operated by rotating the distance between the optical axis / focal length adjustment device. The camera moves with the front and back of the Tang lens and slides up and down. As shown in Fig. 17, when the photographing lenses 62R and 62L are advanced from the infinite angle to the closest chick and are raised, the upper center of the center 53 slides at the lower end position. The focal length image located on the center extension line of the vertical hip camera will be the same as the center. This paper scale is applicable to the national standard (CNS) A4 specification (210X297 mm) of the paper. -------- 1Τ ------ ^ i Λ (please read the precautions on the back before continuing this page) 318900 A7 B7 printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs ) Fang Zhenhao 53 left and right 90 ° reflective shuttle lens group cross line center vertex reached agreement * As shown in picture 19⑹, when moving the focal length, it will be as shown in circles 19 (c) and 19 (〇0 Adjust the focal length according to the deviation of the object position of the observation finder. Refer to Garden 18 ·-The triangular reflective yam 63 with the same function as the central upper prism prism 53 is placed at the upper central prism 53 position of the prism group 51 in FIG. 14. The reflective dysprosium 63 is linked with the distance / focus adjustment device between the optical sleeves ". The sliding base as shown in Fig. 16 is moved up and down. · The focal length can be adjusted according to the positional deviation of the object image of the viewfinder. Similar to the situation in Fig. 17. "Zhao Zhao Photograph" of the present invention should be used to synthesize the left and right half of the photography day surface into a complete picture Zhi Zhen • It is the distance between the optical axis / focus adjustment device embedded automatic aiming and focusing; the object system at the focal length is located in the center of the left and right imaging of the viewfinder • It is always between the optical axes of the left and right photography lenses. "The object located at the focal length can be focused according to the situation of observing the viewfinder picture. There is no correction between the distance between the optical sleeve and the focal length. Therefore, the present invention can provide a stereo camera with high performance and convenient operation. The conventional stereo photography lacks the difficulty of focusing. The present invention is not limited to the scope of the above embodiments. There may be various changes within the technology and scope of the present invention. These changes are of course within the scope of the present invention. -13- This paper The standard is applicable to the Chinese National Standard (CNS) A4 specification (210X297mm) ---------- ^ ---- 1 -ItT ------ ^ (r (please read the notes on the back first Matters write this page again)