专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明专利

JPH0327083B2 失效
公开(公告)号：JPH0327083B2
公开(公告)日：1991-04-12
申请号：JP22869383
申请日：1983-12-02
申请人： CANON KK
发明人： SERIZAWA TAKASHI , IMATAKI HIROYUKI , USUI MASAYUKI , BABA TAKESHI , NOSE HIROYASU
IPC分类号： G02B3/12 , G02B3/00 , G02B3/14 , G02B26/08

62. 发明专利

JPH02220110A FLOW RATE CONTROLLER 失效
公开(公告)号：JPH02220110A
公开(公告)日：1990-09-03
申请号：JP4129589
申请日：1989-02-21
申请人： CANON KK , CANON PRECISION INC
发明人： KONNO SHIGEO , BABA TAKESHI
IPC分类号： F16K3/32 , G05D7/00
摘要： PURPOSE:To attain fine and quantitative control of the flow rate by using the rotation of a turntable containing many concentrical holes to perform the opening/closing control of the flow paths formed by each hole. CONSTITUTION:A liquid supplied from a pressure container through the pipes 2a and 2b reaches a turntable 1, and the pressure fluid is supplied to an actuating device (not shown in a diagram) through the pipe 3b only when the holes 1a formed concentrically on the turntable 1 which is driven by a motor 4 are coincident with the holes 2a and 3a of blocks 2 and 3 set at both sides of turntable 1. The flow rate of the fluid can be controlled with control of the rotational frequency of the motor 4 since the turntable 1 is driven the motor 4. Furthermore, the discharging amount of the fluid is controlled when a flow path formed between a flowing inlet 2a and a flowing outlet 3a is opened and closed in accordance with the revolution of the turntable 1. As a result, the accurate and quantitative control of flow rate is attained over a wide range by changing the number of holes 1a - 3a forming the flow paths, the diameters of these holes, the rotational frequency of the turntable 1, etc.

63. 发明专利

JPH0264769A INFORMATION RETRIEVING DEVICE 失效
公开(公告)号：JPH0264769A
公开(公告)日：1990-03-05
申请号：JP21504188
申请日：1988-08-31
申请人： CANON KK
发明人： BABA TAKESHI
IPC分类号： G06F17/30
摘要： PURPOSE:To flexibly designate complex conditions by providing a display means, a means to store the relation of an individual element and a retrieving key and a means to designate the element in ordering and to designate the retrieving key from the element. CONSTITUTION:A retrieving key input part 5 displays the synopsis of a selectable items in a table format on a screen according to the content of a table information storing part 4 and designates the item displayed on the screen to a user by a position designating device 2. A retrieving key generating part 6 decides the content of the table information storing part 4 and the retrieving key detected by the retrieving key input part 5, and when the user ends the input of the retrieving key, the retrieving key is generated from the selecting item and is transmitted to a data base control part 7. The control part 7 retrieves the relevant information according to the retrieving key generated by the generating part 6 and displays a result on the screen. Thus, the user can execute the designation of retrieving conditions flexibly only by selecting the item displayed on the screen.

64. 发明专利

JPS62103616A FOCUS DETECTOR 失效
公开(公告)号：JPS62103616A
公开(公告)日：1987-05-14
申请号：JP24523985
申请日：1985-10-30
申请人： CANON KK
发明人： BABA TAKESHI , NIWA YUKICHI , YOSHII MINORU
IPC分类号： G02B7/36 , G02B7/28 , G03B3/00 , G03B13/36 , H04N5/232
摘要： PURPOSE:To discriminate easily whether an optical system is in focus or out of focus independently of the classification of an object and the contrast by detecting the width of an edge part like the outline of the object which appears commonly to may objects. CONSTITUTION:The width of the edge part of the object is detected, and the optical system is judged to be out of focus if the width is wide, but it is judged to be in focus if the width is narrow. A width DELTAx of the edge part in a picture signal I(x) is a minimum value DELTAx0 in case of the in-focus state, and this width is increased according as the optical system is getting out of focus. Though the width DELTAx is determined by the circle of confusion of the optical system, the resolving power of an image pickup element, and the band width of a pic ture signal processing circuit, the in-focus or out-of-focus state of the optical system is discriminated by detection of the width DELTAx of the edge pat of the picture signal because said resolving power and band width are independent of the focus state of the optical system. That is, the optical is judged to be in focus in case of DELTAx>DELTAx0, and this judgement is independent of an average brightness of an edge pattern as the object or the contrast.

65. 发明专利

JPS6294822A TRANSMITTING OPTICAL ELEMENT WITH VARIABLE REFRACTIVE INDEX 失效
公开(公告)号：JPS6294822A
公开(公告)日：1987-05-01
申请号：JP23451985
申请日：1985-10-22
申请人： CANON KK
发明人： SHIRAIWA KEISHIN , BABA TAKESHI
IPC分类号： G02B3/12 , G02B3/14 , G02F1/13 , G02F1/137
摘要： PURPOSE:To allow natural light to be used and to make transmission loss small and reduce the size and weight of a transmitting optical element by varying the refractive index of the element by using a liquid crystal molecule orientation direction varying means. CONSTITUTION:Boundary layers 5a-5c of liquid crystal layers 2a-2d are transparent; and the boundary layer between the layers 2a and 2b, the boundary layer 5b between the layers 2b and 2c, the boundary layer 5c between the layers 2c and 2d, and the surface of a transparent electrode 4b are plane and the surface of a transparent electrode 4a, on the other hand, is outwardly convex. Voltages applied to the layers 2a-2d are controlled by those electrodes 4a and 4b to vary the refractive index to transmitted light continuously, and thus the focal length of a lens is varied continuously. Consequently, natural light is usable, the transmission loss is made small, and the size and weight are reduced.

66. 发明专利

JPS61156213A ZOOM LENS 失效
公开(公告)号：JPS61156213A
公开(公告)日：1986-07-15
申请号：JP27649284
申请日：1984-12-28
申请人： CANON KK
发明人： SUDA SHIGEYUKI , BABA TAKESHI
IPC分类号： G02B15/14 , G02B15/16 , G02B15/22 , G02F1/01 , G02F1/13
摘要： PURPOSE:To make the constitution of a zoom lens compact and suitable for electronic control, by constituting the zoom lens of a fixed lens group and another lens group which changes the power of the zoom when moving in the coaxial direction and providing a variable refracting power element to one of the lens groups. CONSTITUTION:The zoom lens of this invention is composed of an unmovable front lens F, variator V which changes the power of the zoom lens when moving in the coaxial direction, unmovable relay lens R, and unmovable compensator C' equipped with available refracting power element which changes the refrac tive index by changing the shape of the lens surface. To an infinite object, the compensator C' is set to a negative value at the wide angle and telephoto ends and to a near object, the refracting power of the compensator C' is further made smaller. Therefore, the image surface of the entire system can always be maintained constantly irrespectively of the change in the variable power and object distance by the movement of the variator V by changing the refract ing power of the variable refracting power element in such a way, and high- speed auto-focus control can be performed with a small-sized and simple constitu tion.

67. 发明专利

JPS60263903A PRODUCTION OF DISTRIBUTED INDEX TYPE ARRAY LENS 失效
公开(公告)号：JPS60263903A
公开(公告)日：1985-12-27
申请号：JP12155884
申请日：1984-06-13
申请人： CANON KK
发明人： BABA TAKESHI , IMATAKI HIROYUKI
IPC分类号： B29C39/26 , B29L11/00 , G02B1/04 , G02B3/00
摘要： PURPOSE:To simolify a process for production and to reduce cost by injecting plural kinds of monomers having different rates of polymn. into the hollow parts of a vessel having the many hollow parts and polymerizing the monomers thereby forming single lenses each having a refractive index distribution at one time. CONSTITUTION:A flat plate 3 consisting of glass, etc. is adhered to one end face of the vessel 1 having the many arrayed cylindrical hollow parts 2. Plural kinds of the monomers having respectively different rates of polymn. are injected into the parts 2. The monomers injected therein are polymerized by suitable means, for example, irradiation of light, addition of a catalyst and polymn. initiator, heating or the like. The polymn. is executed in such a manner that the rate of polymn. near the inside wall of the parts 2 is made larger than the rate of polymn. near the central axis. The concentrical cylindrical refractive index distribution in which the refractive index is higher at the center and is lower at the peripheral is generated in each central part 2 and the function as a distributed index lens is obtd. The production of the array lenses at one time is thus made possible.

68. 发明专利

JPS60217323A AUTOMATIC FOCUS OPTICAL DEVICE 失效
公开(公告)号：JPS60217323A
公开(公告)日：1985-10-30
申请号：JP7479684
申请日：1984-04-12
申请人： CANON KK
发明人： USUI MASAYUKI , IMATAKI HIROYUKI , BABA TAKESHI , SERIZAWA TAKASHI , NOSE HIROYASU
IPC分类号： G02B7/09 , G02B3/14 , G02B7/28
摘要： PURPOSE:To simplify the constitution of an automatic focus optical device, and to improve its responsiveness by controlling the shape of an optical surface of an elastic body in accordance with a signal detected by a focusing state detecting means. CONSTITUTION:A transparent elastic body 3 is put into a cylindrical vessel 1 having a circular opening part 2, and the pressure is applied to the elastic body 3 through a movable part 4 consisting of a transparent parallel plate. In accordance with magnitude of the applied pressure, a part of the elastic body 3 is projects in the shape of a convex lens from the opening part 2, or sinks in the shape of a concave lens. A focusing state is detected by a focusing state detecting means, by which the pressure applied to the elastic body 3 is controlled in accordance with a detected signal, and a shape of an optical surface of the elastic body 3 is controlled.

69. 发明专利

JPS60176017A OPTICAL ELEMENT 失效
公开(公告)号：JPS60176017A
公开(公告)日：1985-09-10
申请号：JP3299984
申请日：1984-02-23
申请人： CANON KK
发明人： BABA TAKESHI , SERIZAWA TAKASHI , USUI MASAYUKI , IMATAKI HIROYUKI , NOSE HIROYASU
IPC分类号： G02B26/10 , G02B3/00 , G02B3/12 , G02B3/14 , G02B5/04 , G02B7/04 , G02B13/00 , G02B26/02 , G02B26/08 , G02B27/40
摘要： PURPOSE:To vary relative positions of two optical surfaces with simple constitution by coupling two optical surfaces through an elastic body. CONSTITUTION:Parallel plate glasses 2, 3 are coupled by interposing an elastic body 1 between them. End points 2', 3' of the parallel plate glasses are fixed, and the other end points 2'', 3'' are constituted so as to be movable under pressure by an external force. When the end points 2'', 3'' are pressed, the elastic body 1 is deformed, and a vertical angle theta0 of a prism is varied. As for the elastic body 1, natural rubber and synthetic rubber can be used.

70. 发明专利

JPS60151603A OPTICAL ELEMENT 失效
公开(公告)号：JPS60151603A
公开(公告)日：1985-08-09
申请号：JP777484
申请日：1984-01-18
申请人： CANON KK
发明人： BABA TAKESHI , IMATAKI HIROYUKI , SERIZAWA TAKASHI , NOSE HIROYASU , USUI MASAYUKI
IPC分类号： G02B3/12 , G02B3/00 , G02B3/14 , G02B5/10 , G02B26/08
摘要： PURPOSE:To enable a considerable change of the focal length by a simple structure by projecting or sinking an elastic body so as to deform the optical surface. CONSTITUTION:A container 1 is packed with an elastic body 4, and a member 3 having an opening 2 is placed on the elastic body 4. When pressure is applied to the elastic body 4, the elastic body 4 projects from the opening 2. Since pressure is applied to the elastic body 4 even in an ordinary state, the surface 5 of the elastic body 4 in the opening 2 is provided with a gently convex shape to form an optical surface. The bottom plate 1a is made of a piezoelectric element, and the convex shape of the optical surface can be changed by applying voltage to the plate 1a so as to deform it.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式