专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2000029098A ZOOM FINDER 失效
公开(公告)号：JP2000029098A
公开(公告)日：2000-01-28
申请号：JP19761698
申请日：1998-07-13
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI HIDEO , ONO KAZUNORI
IPC分类号： G03B13/10 , G02B15/16 , G02B23/14
摘要： PROBLEM TO BE SOLVED: To constitute a zoom finder so that zoom ratio can be set large with a simple constitution. SOLUTION: This zoom finder has a zoom type objective optical system 30, an eyepiece 35, and a relay optical system 40 lying between them; and a relay lens group 41 and a concave lens 42 of the system 40, for example, can freely move in an optical axis direction, so that the magnification of a finder visual field image can be varied. The objective optical system is provided with plural objective optical systems whose variable power ranges are different each other.

2. 发明专利

JPH01261623A ZOOMING FINDER DEVICE 失效
公开(公告)号：JPH01261623A
公开(公告)日：1989-10-18
申请号：JP9085488
申请日：1988-04-13
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： NOGUCHI YUKIO , ONO KAZUNORI , KOMATSUZAKI HIROSHI
IPC分类号： G03B13/12
摘要： PURPOSE:To prevent an object image from moving in the field of a finder in which a variable power is performed by not only making a variable power lens which is moved when a finder magnification is changed move to a finder optical axis direction but also making the said lens shift with respect to a photographing optical axis. CONSTITUTION:The title device is provided with the variable power lens 16 to advance and retreat along the finder optical axis 6a between a finder objective lens 15 and an eyepiece 19 in order too perform the variable power of the finder, a moving mechanism to make the variable power lens 16 advance and retreat while interlocking the zooming of a photographing lens, and a shifting mechanism to shift the lens 16 when the variable power lens 16 is advanced and retreated. Consequently, the blurring of the finder optical axis 6a accompanied by the change of the finder magnification can be corrected by the shifting of the variable power lens 16. Thus, the center of a finder image plane in a wide angle end side is not extremely deviated and the center of the finder image plane can be almost kept practically a certain position regardless of the finder magnification.

3. 发明专利

JPH05107597A ALBADA TYPE BRIGHT FRAME FINDER 失效
公开(公告)号：JPH05107597A
公开(公告)日：1993-04-30
申请号：JP26766491
申请日：1991-10-16
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI KIYOTAKA , ONO KAZUNORI , ASANO SEIJI , KOBAYASHI HIDEO
IPC分类号： G03B13/10 , G03B13/12
摘要： PURPOSE:To display only either of field frames for first size or second size, according to the photographing of the first size or that of the second size. CONSTITUTION:A panoramic changeover mirror with an aperture 26 is taken in and out between an objective lens 20 and an eyepiece 22, according to the photographing of full size or that of panoramic size. In other words, when the photographing of the full size is executed, the field frame for the full size is displayed as it is. On the other hand, when the photographing of the panoramic size is executed, the panoramic changeover mirror 26 is inserted, the field frame for the panoramic size 28 is led to the inside surface of the objective lens 20, by the panoramic changeover mirror 26, to form the virtual image of the field frame for the panoramic size, and the virtual image is viewed from an aperture for the panoramic size 26B, formed on the panoramic changeover mirror 26. Thus, only the field frame can be displayed according to the photographing of the full size or that of the panoramic size.

4. 发明专利

JPH11242262A ZOOM FINDER 失效
公开(公告)号：JPH11242262A
公开(公告)日：1999-09-07
申请号：JP4411698
申请日：1998-02-25
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI HIDEO , ONO KAZUNORI , OZAWA KATSUJI , CHO MICHIO , IWASAKI YOICHI
IPC分类号： G03B13/12 , G03B17/24
摘要： PROBLEM TO BE SOLVED: To obtain a zoom finder where aberration is restrained to be low and whose entire length is comparatively short by changing the angle of view of a displayed picture by combining at least one conversion lens with a zoom optical system. SOLUTION: A wide conversion lens 42 reducing a finder image formed by the zoom optical system 31, for example, to 0.7-fold one and a tele conversion lens 43 enlarging the finder image, for example, to 1.4-fold one are fixed in a conversion lens block 32. The zoom finder 30 is constituted of the optical system 31 and the lens block 32, and either the lens 42 or the lens 43 is selectively combined with the optical system 31. Namely, the lens 43 is moved between a position where it is combined with the optical system 31 and a position where it is separated therefrom.

5. 发明专利

JPH05107596A ALBADA TYPE BRIGHT FRAME FINDER 失效
公开(公告)号：JPH05107596A
公开(公告)日：1993-04-30
申请号：JP26766391
申请日：1991-10-16
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI KIYOTAKA , ONO KAZUNORI , ASANO SEIJI , KOBAYASHI HIDEO
IPC分类号： G03B13/10 , G03B13/12
摘要： PURPOSE:To display only either of field frames for first size or second size, according to the photographing of the first size or that of the second size. CONSTITUTION:In this Albada type bright frame finder having only a field frame for full size 22, a panoramic changeover mirror lens 30 is taken in and out between an objective lens 10 and an eyepiece 20, according to the photographing of the full size or that of panoramic size. In other words, when the photographing of the full size is executed, the field frame for the full size is displayed as it is. On the other hand, when the photographing of the panoramic size is executed, the panoramic changeover mirror 30 is inserted, the above-mentioned field frame for the full size is reflected by the panoramic changeover mirror lens 30, to form the virtual image of the field frame for the panoramic size. Thus, only the field frame can be displayed according to the photographing of the full size or that of the panoramic size.

6. 发明专利

JPH01235920A IMAGE FORMING OPTICAL SYSTEM FOR SOLID-STATE IMAGE PICKUP ELEMENT 失效
公开(公告)号：JPH01235920A
公开(公告)日：1989-09-20
申请号：JP6184688
申请日：1988-03-17
申请人： FUJI PHOTO FILM CO LTD , FUJI PHOTO OPTICAL CO LTD
发明人： AISAKA SHIGENORI , KANTANI MASASHI , ONO KAZUNORI
IPC分类号： G02B27/46 , G02B13/02 , H04N9/07
摘要： PURPOSE:To miniaturize the title optical system by using a lens whose back- focal distance is short for the image forming optical system by providing an optical low-pass filter in front of the lens system or in its vicinity. CONSTITUTION:On an optical axis 16 in front of a front lens group 20, a diaphragm 24 is provided, and also, in its front, an optical low-pass filter 26 is provided. As for the low-pass filter 26, for instance, that which has dispersed minute grains of transparent materials whose refractive indexes are different into a plate of a transparent resin material is used. The low-pass filter 26 eliminates a component of a picture pattern having a spatial frequency being substantially higher than a spatial frequency of a segment array of a color separation filter 12 among incident light beams which are made incident on this filter 26 from a field on the optical axis 16. In such a way, a lens whose flange-focal distance is short, for instance, of a telephoto type, etc., can be used, and also, with regard to the optical low-pass filter, as well, that of a small shape can be used, therefore, the whole image forming optical system can be made small in size and light in weight.

7. 发明专利

JPS63199351A FILM UNIT WITH LENS 失效
公开(公告)号：JPS63199351A
公开(公告)日：1988-08-17
申请号：JP3218687
申请日：1987-02-14
申请人： FUJI PHOTO FILM CO LTD , FUJI PHOTO OPTICAL CO LTD
发明人： USHIRO SHIGEAKI , OMURA HIROSHI , ASANO SEIJI , ONO KAZUNORI , CHO MICHIO
IPC分类号： G03B17/04 , G02B3/04 , G03B19/04 , G03C3/00
摘要： PURPOSE:To improve the performance of a film unit without increasing the size thereof by using a 35mm roll film for the film unit and providing a specific single lens thereto. CONSTITUTION:The roll film 23 with which a 24X36mm image plane size is obtd. is used for the titled unit. The single lens 4 which has the focal distance (f) (mm) and diaphragm F satisfying the equation F>=f /150:F>=34.3-0.75f:F

8. 发明专利

JPH05107599A ALBADA TYPE BRIGHT FRAME FINDER 失效
公开(公告)号：JPH05107599A
公开(公告)日：1993-04-30
申请号：JP26766691
申请日：1991-10-16
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI KIYOTAKA , ONO KAZUNORI , ASANO SEIJI , KOBAYASHI HIDEO
IPC分类号： G03B13/10 , G03B13/08 , G03B13/12
摘要： PURPOSE:To display a proper field frame according to the photographing of normal size or that of panoramic size. CONSTITUTION:In this Albada type bright frame finder, a field frame plate for the panoramic size 16 is inclined or orthogonally crossed with the optical axis of a finder, for being disposed, between an objective lens 10 and an eyepiece 12, according to the photographing of the normal size or that of the panoramic size. In other words, when the photographing of the normal size is executed, the field frame plate for the panoramic size 16 is inclinedly arranged. On the other hand, when the photographing of the panoramic size is executed, the field frame plate for the panoramic size 16 is orthogonally crossed with the optical axis of the finder, to be arranged. Thus, the proper field frame can be displayed according to the photographing of the normal size or that of the panoramic size.

9. 发明专利

JPH05107598A LIGHTING TYPE BRIGHT FRAME FINDER 失效
公开(公告)号：JPH05107598A
公开(公告)日：1993-04-30
申请号：JP26766591
申请日：1991-10-16
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KOBAYASHI KIYOTAKA , ONO KAZUNORI , ASANO SEIJI , KOBAYASHI HIDEO
IPC分类号： G03B13/10 , G03B13/12
摘要： PURPOSE:To display only either of field frames for first size or second size, according to the photographing of the first size or that of the second size. CONSTITUTION:In this lighting type bright frame finder, the field frames for full size and panoramic size are changed over according to the photographing of the full size or that of the panoramic size. In other words, two field frames for the full size and the panoramic size 14A and 14B, are prepared. When the photographing of the full size is executed, the field frame for the full size is inserted into a prescribed location and when the photographing of the panoramic size is executed, the field frame for the panoramic size is inserted into the prescribed location. On the other hand, a liquid crystal display unit capable of displaying the field frames for the full size and panoramic size can be used insted of the two field frames. Thus, only the field frame can be displayed according to the photographing of the full size or that of the panoramic size.

10. 发明专利

JPH04243382A ELECTRONIC STILL CAMERA 失效
公开(公告)号：JPH04243382A
公开(公告)日：1992-08-31
申请号：JP385091
申请日：1991-01-17
申请人： FUJI PHOTO OPTICAL CO LTD , FUJI PHOTO FILM CO LTD
发明人： KASHIWANUMA YASUNORI , ONO KAZUNORI
IPC分类号： H04N5/225 , H04N5/238
摘要： PURPOSE:To arrange a dimmer sensor to a suitable position in a camera main body by providing an optical system suitable for TTL direct dimmer to the electronic still camera. CONSTITUTION:A reflecting light from an object through a front lens 10, a variator lens 12, a compensator lens 14 and a master lens 18 is partly branched by a beam splitter 20 provided on an optical axis P and made incident in a half mirror 30 via a lens 28. The reflecting light and the transmission light branched by the half mirror 30 are respectively led to a dimmer sensor 34 and led to an AE sensor 32 via an image forming lens 31. Thus, the dimmer sensor is provided to a position other than the vicinity of an image pickup shutter and TTL direct dimmer is made available.

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