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21. 发明专利

DE3889670T2 未知
公开(公告)号：DE3889670T2
公开(公告)日：1994-11-24
申请号：DE3889670
申请日：1988-08-05
申请人： ENEQUIST CARL SVEN HARRY
发明人： ENEQUIST CARL SVEN HARRY
IPC分类号： G02B7/36 , G03B3/12 , G03B27/34
摘要： A scanning picture sensor isolates a section of a projected picture, and has its outlet connected to a circuit for sepn. of low and high frequency bands. The bands are conducted to a comparison circuit connected to units (23, 24) for indication, of optimal sharpness and definition in the projected picture. The signals comprising the low and high frequency bands are rectified in rectifiers fitted between the sepn. circuit and the comparison circuit. The sharpness indicating units consist of an amplifier to which is connected an indicator instrument (24). To the amplifier are connected servo devices controlled by the amplifier output signals. The servo devices are coupled to an adjuster for adjustment of the sharpness of the projected picture on projection equipment.

22. 发明专利

FR2684459B1 未知
公开(公告)号：FR2684459B1
公开(公告)日：1994-10-14
申请号：FR9115110
申请日：1991-11-29
申请人： BARRAS PROVENCE
发明人： ROBERT NICOLAS , BERNARDIN MICHEL
IPC分类号： A61B1/005 , G03B37/00 , G03B3/12 , G05D3/00

23. 发明专利

DE3889670D1 未知
公开(公告)号：DE3889670D1
公开(公告)日：1994-06-23
申请号：DE3889670
申请日：1988-08-05
申请人： ENEQUIST CARL SVEN HARRY
发明人： ENEQUIST CARL SVEN HARRY
IPC分类号： G02B7/36 , G03B3/12 , G03B27/34
摘要： A scanning picture sensor isolates a section of a projected picture, and has its outlet connected to a circuit for sepn. of low and high frequency bands. The bands are conducted to a comparison circuit connected to units (23, 24) for indication, of optimal sharpness and definition in the projected picture. The signals comprising the low and high frequency bands are rectified in rectifiers fitted between the sepn. circuit and the comparison circuit. The sharpness indicating units consist of an amplifier to which is connected an indicator instrument (24). To the amplifier are connected servo devices controlled by the amplifier output signals. The servo devices are coupled to an adjuster for adjustment of the sharpness of the projected picture on projection equipment.

24. 发明专利

DE8711745U1 未知
公开(公告)号：DE8711745U1
公开(公告)日：1987-10-15
申请号：DE8711745
申请日：1987-08-29
申请人： AGFA-GEVAERT AG, 5090 LEVERKUSEN, DE
IPC分类号： G03B15/00 , G03B19/02 , G03B19/07 , G03B3/10 , G03B3/12 , G03B17/38 , G03B27/36 , A61B6/00
摘要： A device for producing photographic exposures of images appearing on an image screen onto a film platform carrying a plane film comprises a support holding a number of objectives and displaceable parallel to the axis extending through the central point of the image screen and the central point of the film platform. The platform carries one objective fixed to the platform of one magnifying property and four additional objectives which have such magnifying properties that each of them projects the picture field area of the screen on only one fourth of the usable film surface.

25. 发明专利

FR2423799A1 未知
公开(公告)号：FR2423799A1
公开(公告)日：1979-11-16
申请号：FR7910083
申请日：1979-04-20
申请人： CANON KK
发明人： TAMURA SHUICHI , OGAWA MASAHIKO , TSUNEKAVA TOKUICHI , TOKUDA RYUJI
IPC分类号： G03B13/36 , G02B7/28 , G02B7/32 , G03B3/12

26. 发明专利

FR2235384B3 未知
公开(公告)号：FR2235384B3
公开(公告)日：1977-03-18
申请号：FR7418242
申请日：1974-05-27
申请人： LEITZ ERNST GMBH
IPC分类号： G03B3/12 , G03B21/53 , G03B21/00

27. 发明专利

AT286776B 未知
公开(公告)号：AT286776B
公开(公告)日：1970-12-28
申请号：AT1076368
申请日：1968-11-05
申请人： EUMIG
发明人： VOCKENHUBER KARL ING , FREUDENSCHUSS OTTO DIPL ING , KEZNICKL EDUARD ING
IPC分类号： G03B17/02 , G03B3/12
摘要： 1,269,549. Cameras with depth of field controllers. K. VOCKENHUBER and R. HAUSER. Nov.5, 1969 [Nov. 5, 1968], No.54311/69. Heading G2A. The desired near and far limits of the depth of focus of a camera lens are pre-selected by rotation of knobs 39, 40, a calculator controlling an indicating or control element in response to the desired object space, as pre-selected, falling at least partially outside the depth of field of the lens. As shown, the lens is a zoom lens having a front lens element 1 axially displaceable for focusing, a variator 2 having two relatively axially displaceable lens elements 4, 5 for adjusting the focal length and a prime lens 3. A partially reflecting prism 19 directs part of the light through the lens to a view-finder which has associated therewith a photo-resistor 24 and an indicator lamp 25. Setting ring 37 associated with knob 39 carries a wiper contact 42 which contacts a resistor 41 provided on a further setting ring 38 associated with knob 38, the setting rings being interconnected by planet gears 36 mounted on lens mount 33. A fixed contact 17 contacts a resistor 15 provided on lens barrel 6, the barrel being rotated by a motor 14 to adjust the focal length. Resistors 15 and 41 and photo-resistor 24 together with a fixed resistor are connected in a Wheatstone bridge circuit having a moving coil relay as a detector. When the bridge is unbalanced in one direction, corresponding to the actual depth of focus being less than the pre-set value, the relay closes a circuit which energizes indicator lamp 25 and a relay to de-energized the motor 14, or to reverse the direction of motor 14. A pivoted diaphragm plate 26 is controlled by the light reflected from rotating mirror shutter 28 incident upon a photo-resistor 27. The moving coil relay may be replaced by a semi-conductor amplifier, or the camera may have a mechanical calculator instead of an electric calculator

28. 发明专利

ES297156A1 MEJORAS EN LA CONSTRUCCIËN DE DISPOSITIVOS DESTINADOS A LA APERTURA A DISTANCIA DE LAS PUERTAS Y ANALOGOS 未知
公开(公告)号：ES297156A1
公开(公告)日：1964-05-16
申请号：ES297156
申请日：1964-03-03
申请人： VAZQUEZ RODRIGUEZ CESAR
IPC分类号： G03B3/12 , G05B

29. 发明公开

EP4293419A3 FERNSTEUEREINRICHTUNG FÜR EINE BEWEGTBILDKAMERA UND KENNZEICHNUNGSRING FÜR EINE FERNSTEUEREINRICHTUNG 审中-实审
公开(公告)号：EP4293419A3
公开(公告)日：2024-03-20
申请号：EP23206873.4
申请日：2021-05-05
申请人： Arnold & Richter Cine Technik GmbH & Co. Betriebs KG
发明人： VOSS, Hendrik
IPC分类号： G03B3/12 , G03B7/10 , G03B17/18 , G03B17/56
摘要： Eine Fernsteuereinrichtung zum Erzeugen von Stellsignalen für einen Objektiv-Stellmotor einer Bewegtbildkamera umfasst ein Basisteil und ein relativ zu dem Basisteil drehbares Bedienelement zum Einstellen von Steuerbefehlen für den Objektiv-Stellmotor; einen Positionsgeber zum Erfassen einer jeweiligen Drehstellung des Bedienelementes und Erzeugen entsprechender Positionssignale; eine Auswerte- und Steuereinrichtung, welche dazu ausgebildet ist, gemäß einer Zuordnungsvorschrift in Abhängigkeit von den Positionssignalen Stellsignale für den Objektiv-Stellmotor zu ermitteln; und eine Ausgabeeinrichtung zum Übermitteln der Stellsignale an die Bewegtbildkamera. Dabei entspricht die Zuordnungsvorschrift wenigstens einem mathematischen Funktionszusammenhang und die Fernsteuereinrichtung weist eine Eingabeeinrichtung auf, über welche der mathematische Funktionszusammenhang durch Benutzereingabe konfigurierbar ist. Ein Kennzeichnungsring für eine Fernsteuereinrichtung weist einen Speicher auf, in dem eine auslesbare Kodierung gespeichert ist.

30. 发明公开

EP2338085A1 VERFAHREN ZUM EINSTELLEN UND ZUR ANZEIGE DER EINSTELLUNG EINES KAMERAOBJEKTIVS 有权
标题翻译：方法用于设置和显示具有摄像机镜头的调整
公开(公告)号：EP2338085A1
公开(公告)日：2011-06-29
申请号：EP09749037.9
申请日：2009-10-08
申请人： Arnold&Richter Cine Technik GmbH&Co. Betriebs KG
发明人： RICHTER, Claus
IPC分类号： G03B3/12 , G03B13/34 , H04N5/232
CPC分类号： G03B3/12 , G03B13/34 , G03B17/18 , H04N5/23203
摘要： A method for adjusting and for displaying the adjustment of a camera lens, in particular for adjusting the image sharpness (focus) of a camera lens for analog or digital motion picture cameras, comprising a scale shiftable relative to the display of a current adjustment value and coupled with an adjusting device. On the scale the adjustment values are represented numerically and/or as graphical symbols. A scale range bordering on the current adjustment value is located in a display window. At least one adjustment value is highlighted by a marking and a marking located outside the display window is displayed at the edge of the scale.

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