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21. 发明专利

JP2005103914A Method for adjusting luminous energy 审中-公开
标题翻译：调节光能的方法
公开(公告)号：JP2005103914A
公开(公告)日：2005-04-21
申请号：JP2003339953
申请日：2003-09-30
申请人： Fuji Photo Film Co Ltd , 富士写真フイルム株式会社
发明人： IWASAKI YOICHI
IPC分类号： B41J2/445
摘要： PROBLEM TO BE SOLVED: To provide a method for adjusting luminous energy which can suitably adjust the light amount even when there exist a shutter functional element and other optical components between a semiconductor light source and a photosensitive material. SOLUTION: As the first step, a spectral strength of a light emitting element itself is measured. When this spectral strength is measured, a plurality of electric current values mutually different are energized to obtain the spectral strengths in accordance with the electric current values by integral calculations including the spectral sensitivity of the photosensitive material on each step. After a corrected value is calculated based on these results, the measurement is shifted to the second step, and the adjustment is started by applying an initial electric current of 10 mA. Thereafter, based on the spectral strength obtained by the first step and the corrected value calculated before starting the second step, an electric current value to obtain a specified light strength is determined, and the light strength at a step S205 is measured by turning the light emitting element on by the electric current value. At the steps S203-S206, the light strength is repeatedly adjusted by changing the electric current value until the light strength reaches a target light strength, and when the target light strength is obtained, the adjustment is finished. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种即使在半导体光源和感光材料之间存在快门功能元件和其他光学部件的情况下也可以适当地调节光量的调节光量的方法。解决方案：作为第一步骤，测量发光元件本身的光谱强度。当测量该光谱强度时，激励相互不同的多个电流值，以通过包括每个步骤上感光材料的光谱灵敏度的积分计算来根据电流值获得光谱强度。在基于这些结果计算校正值之后，将测量转移到第二步，并通过施加10mA的初始电流来开始调整。然后，基于第一步骤获得的光谱强度和开始第二步骤之前计算的校正值，确定获得特定光强度的电流值，并且通过转动光来测量步骤S205的光强度通过电流值开启发光元件。在步骤S203-S206中，通过改变电流值直到光强达到目标光强度来重复地调节光强度，并且当获得目标光强度时，调整结束。版权所有（C）2005，JPO＆NCIPI

22. 发明专利

JPH1152108A RESIN-MOLDED LENS 失效
公开(公告)号：JPH1152108A
公开(公告)日：1999-02-26
申请号：JP20623297
申请日：1997-07-31
申请人： FUJI PHOTO FILM CO LTD
发明人： IWASAKI HIROYUKI , IWASAKI YOICHI
IPC分类号： G02B7/02 , G02B1/04 , G02B3/00
摘要： PROBLEM TO BE SOLVED: To provide a resin molded lens for photography in which flares are suppressed from occurring without lowering the accuracy of the surface of the lens and whose assembling to a lens holding member is easy. SOLUTION: A lens 20 is constituted by providing a core lens part 22 at the outer periphery of the effective lens part 21 in which a lens surface 21b is formed. The length in the radial direction of the core lens part 22 is formed long so that the light quantity of the reflected light at a lens peripheral surface 23 beomes the degree to which it does not lower the contrast of a subject. Moreover, one pair of engaging parts 26, 27 are provided in the up and down parts of an effective light beam passing range 25 in the core lens part 22. Thicknesses of the parts 26, 27 ate constituted to be thinner than the thickness at the outermost peripheral part of an effective lens part 21 and the volume of the outer peripheral part of the lens 20 is suppressed from being increased. Since the engaging part 16, 17 are engaged in one of groove part provided in a lens holding member by bending the whole of the lens 20, the lens 20 is held in the holding member and, is fixed to it simultaneously.

23. 发明专利

JPH1090579A LENS AND LENS BARREL 失效
公开(公告)号：JPH1090579A
公开(公告)日：1998-04-10
申请号：JP24016296
申请日：1996-09-11
申请人： FUJI PHOTO FILM CO LTD
发明人： IWASAKI HIROYUKI , CHO MICHIO , IWASAKI YOICHI , TAKAMURA MASASHI
IPC分类号： G02B7/02 , G02B3/02 , G02B13/18
摘要： PROBLEM TO BE SOLVED: To reduce the cost of a lens holding frame which is moved in an optical axis direction. SOLUTION: This lens 20 is provided with a lens part 21 and cam pins 22 to 24, and these are molded of transparent material. One surface of the lens part 21 is an aspherical concave surface, and a light shielding sheet 25 for shielding harmful light is stuck on a flat part 21a vertical to the optical axis so as to surround the outer peripheral part of the aspherical concave surface. In the case of using the lens 20 in place of one lens group of two lens groups where a variable power is attained by changing a distance between the lens groups, the lens can be moved closer to the other lens group by the amount of the lens pressing members such as a flange and a pressure ring, etc., which are required for a conventional holding frame, then, the high variable power can be attained.

24. 发明专利

JPH0943488A ZOOM LENS 失效
公开(公告)号：JPH0943488A
公开(公告)日：1997-02-14
申请号：JP19624495
申请日：1995-08-01
申请人： FUJI PHOTO FILM CO LTD
发明人： CHO MICHIO , TAKAMURA MASASHI , IWASAKI YOICHI
IPC分类号： G02B7/04 , G02B7/08 , G02B7/10
摘要： PROBLEM TO BE SOLVED: To make a zoom lens compact in size and low in cost. SOLUTION: A front group lens 10 moves in synchronism with a running block 14 moving along an optical axis 12 direction. A rear group lens 11 moves along the optical axis 12 direction in synchronism with one end 15a of a wire 15 put on the running block 14. The other end 15b of the wire 15 is fixed to a take-up shaft 16 capable of taking up the wire 15 by rotation. In the case of variable power, the running block 14 simultaneously driven through gear columns 18 and 19 moves, and the shaft 16 takes up the wire 15, so that the lenses 10 and 11 are respectively moved; and in the case of focusing, a clutch means 21 separates the connection of the gear column 18, and the movement of the lens 10 is inhibited.

25. 发明专利

JPH04235510A ZOOM LENS 失效
公开(公告)号：JPH04235510A
公开(公告)日：1992-08-24
申请号：JP1373691
申请日：1991-01-11
申请人： FUJI PHOTO FILM CO LTD
发明人： CHO MICHIO , IWASAKI YOICHI , NAKA YOUJI
IPC分类号： G02B7/02 , G02B7/08
摘要： PURPOSE:To improve the focus accuracy of a zoom lens by considering the movement of the focus distance of a lens group at temperature at the time of photographing. CONSTITUTION:In a zoom lens in which focusing function is given to a rear group of lenses 21 functioning as a compensator lens to correct the movement of a focus face accompanied with the movement of a front group of lenses 20 functioning as a variator lens, CPU corrects the focus distances of the front and the rear groups of lenses 20.21 to reference temperature and humidity previously stored in an ROM on the data of temperature and humidity obtained from a temperature sensor 30 and a humidity sensor 31 at the time of photographing to fix the optimal position of the frame 29 of the rear group of lenses corresponding to the movement of the front group of lenses 20.

26. 发明专利

JPH04235509A FOCUS SYSTEM FOR ZOOM LENS 失效
公开(公告)号：JPH04235509A
公开(公告)日：1992-08-24
申请号：JP1373591
申请日：1991-01-11
申请人： FUJI PHOTO FILM CO LTD
发明人： CHO MICHIO , IWASAKI YOICHI , NAKA YOUJI
IPC分类号： G02B7/08
摘要： PURPOSE:To improve the focus accuracy of a zoom lens without enlarging the memory capacity of an ROM. CONSTITUTION:In the focus system of a zoom lens in which focusing function is given to a rear group of lenses 21 functioning as a compensator lens to correct the movement of a focus face accompanied with the movement of a front group of lenses 20 functioning as a variator lens, CPU compares both a subject distance detected by a distance measuring equipment and the movement of the front group of lenses 20 detected by a potentiometer 33 with both the specified movement of the front group of lenses 20 and the specified subject distance which are previously stored in ROM, and in the case where they mutually correspond, the optimal position of the rear group of lenses 21 is read out from ROM to move the rear group of lenses 21 to the optimal position. In the case where both the above detected values do not correspond to the specified movement of the front group of lenses 20 and the specified subject distance, the optimal position of the rear group of lenses 21 is calculated through computation on the above detected values to move the rear group of lenses 21 to the optimal position.

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