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1. 发明公开

EP0825471A3 Beam diameter control method and device 失效
标题翻译：用于控制光束的直径的方法和装置
公开(公告)号：EP0825471A3
公开(公告)日：1998-09-09
申请号：EP97114210.4
申请日：1997-08-18
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： G02B27/09 , G02B26/10
CPC分类号： H04N1/0446 , G02B27/58 , H01S3/005 , H04N1/0402 , H04N1/0607 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/02425 , H04N2201/0471 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04746 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791
摘要： There is provided beam diameter control method and device for changing a focused beam diameter of a laser beam, which can increase light utilization without incorporating a complicated and expensive optical or zoom system. In the beam diameter control method and device, an optical path difference equal to or more than a coherence length of the laser beam is applied to a portion of light flux of the laser beam before the laser beam is focused. A transparent plate is provided to apply such an optical path difference. The laser beam is preferably emitted from a longitudinal multimode semiconductor laser the coherence length of which is short. The transparent plate may be a parallel flat plate or ring-like plate placed near the center of the light flux. The transparent plate is preferably placed within the parallel beam portion of the laser beam. The transparent plate may be placed in a divergent beam portion or a convergent beam portion instead. In this case, the quantity of light flux divided by the transparent plate can be easily changed by moving the position of the transparent plate in a direction parallel to the optical axis.

2. 发明公开

EP0825471A2 Beam diameter control method and device 失效
标题翻译：光束直径控制方法和装置
公开(公告)号：EP0825471A2
公开(公告)日：1998-02-25
申请号：EP97114210.4
申请日：1997-08-18
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： G02B27/09 , G02B26/10
CPC分类号： H04N1/0446 , G02B27/58 , H01S3/005 , H04N1/0402 , H04N1/0607 , H04N1/1135 , H04N1/12 , H04N1/1911 , H04N2201/02425 , H04N2201/0471 , H04N2201/04729 , H04N2201/04731 , H04N2201/04732 , H04N2201/04734 , H04N2201/04744 , H04N2201/04746 , H04N2201/04786 , H04N2201/04789 , H04N2201/04791
摘要： There is provided beam diameter control method and device for changing a focused beam diameter of a laser beam, which can increase light utilization without incorporating a complicated and expensive optical or zoom system. In the beam diameter control method and device, an optical path difference equal to or more than a coherence length of the laser beam is applied to a portion of light flux of the laser beam before the laser beam is focused. A transparent plate is provided to apply such an optical path difference. The laser beam is preferably emitted from a longitudinal multimode semiconductor laser the coherence length of which is short. The transparent plate may be a parallel flat plate or ring-like plate placed near the center of the light flux. The transparent plate is preferably placed within the parallel beam portion of the laser beam. The transparent plate may be placed in a divergent beam portion or a convergent beam portion instead. In this case, the quantity of light flux divided by the transparent plate can be easily changed by moving the position of the transparent plate in a direction parallel to the optical axis.
摘要翻译：提供了用于改变激光束的聚焦光束直径的光束直径控制方法和设备，其可以在不包含复杂且昂贵的光学或变焦系统的情况下增加光利用率。在光束直径控制方法和设备中，在激光束聚焦之前，将等于或大于激光束的相干长度的光程差施加到激光束的部分光通量。提供透明板以施加这样的光程差。激光束优选从相干长度短的纵向多模半导体激光器发射。透明板可以是平行平板或放置在光通量中心附近的环状板。透明板优选放置在激光束的平行光束部分内。替代地，透明板可以放置在发散束部分或会聚束部分中。在这种情况下，通过在平行于光轴的方向上移动透明板的位置，可容易地改变由透明板划分的光通量的量。

3. 发明公开

EP0428100A2 Resonant scanner 失效
标题翻译： Verfahren zur Stabilisierung einer Resonanzfrequenz und Anwendung bei Resonanzabtastung。
公开(公告)号：EP0428100A2
公开(公告)日：1991-05-22
申请号：EP90121623.4
申请日：1990-11-12
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inoue, Yoshiaki, c/o Fuji Photo Film Co., Ltd. , Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： H04N1/04 , G02B26/10
CPC分类号： G02B7/1821 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/02439 , H04N2201/0471 , H04N2201/04734 , H04N2201/04739 , H04N2201/04746 , H04N2201/04755 , H04N2201/04794
摘要： A method of the present invention for stabilizing the resonant frequency of a resonant scanner is that thermal energy of the same amount as the heat generated in an optical scanning mode is applied to the scanner section in a non-scanning mode to insure that the variation of the temperature of said resonant light deflector will lie within a predetermined range, whereby the resonant frequency of the oscillation of the reflecting mirror is stabilized.
The resonant scanner of the present invention in which the scanner section is heated in the non-scanning mode by supplying the drive coil with an electric current that has a non-resonant frequency or with the heater is constructed.
The resonant scanner using said method is capable of achieving precise optical scanning that has an improved dimensional precision in the sub-scanning direction.
摘要翻译：用于稳定谐振扫描器的谐振频率的本发明的方法是以非扫描模式将与在光学扫描模式中产生的热量相同量的热能施加到扫描器部分，以确保变化所述谐振光偏转器的温度将处于预定范围内，由此使反射镜的振荡的谐振频率稳定。构成本发明的谐振扫描器，其中扫描器部分通过向驱动线圈提供具有非共振频率的电流或加热器而以非扫描模式被加热。使用所述方法的谐振扫描器能够实现在副扫描方向上具有改进的尺寸精度的精确的光学扫描。

4. 发明授权

EP0713118B1 Optical scanning device and method of adjusting same 失效
标题翻译：光学扫描器和调整的方法
公开(公告)号：EP0713118B1
公开(公告)日：2002-02-20
申请号：EP95118015.7
申请日：1995-11-15
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： G02B26/10
CPC分类号： G02B26/105

5. 发明授权

EP0428100B1 Resonant scanner 失效
标题翻译： Resonanzabtaster
公开(公告)号：EP0428100B1
公开(公告)日：1996-09-18
申请号：EP90121623.4
申请日：1990-11-12
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inoue, Yoshiaki, c/o Fuji Photo Film Co., Ltd. , Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： H04N1/04 , G02B26/10
CPC分类号： G02B7/1821 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/02439 , H04N2201/0471 , H04N2201/04734 , H04N2201/04739 , H04N2201/04746 , H04N2201/04755 , H04N2201/04794
摘要： A method of the present invention for stabilizing the resonant frequency of a resonant scanner is that thermal energy of the same amount as the heat generated in an optical scanning mode is applied to the scanner section in a non-scanning mode to insure that the variation of the temperature of said resonant light deflector will lie within a predetermined range, whereby the resonant frequency of the oscillation of the reflecting mirror is stabilized. The resonant scanner of the present invention in which the scanner section is heated in the non-scanning mode by supplying the drive coil with an electric current that has a non-resonant frequency or with the heater is constructed. The resonant scanner using said method is capable of achieving precise optical scanning that has an improved dimensional precision in the sub-scanning direction.

6. 发明公开

EP0713118A1 Optical scanning device and method of adjusting same 失效
标题翻译： Optischer Scanner und Verfahren zu seiner Justierung
公开(公告)号：EP0713118A1
公开(公告)日：1996-05-22
申请号：EP95118015.7
申请日：1995-11-15
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： G02B26/10
CPC分类号： G02B26/105
摘要： After a recording laser beam L1 deflected by a light deflector 38 is concentrated by a condensing lens 40, the recording laser beam L1 is reflected by movable reflecting mirrors 42, 44 to a film F on a drum 22 to scan the film F in a scanning direction. The movable reflecting mirrors 42, 44 are angularly moved by respective angular moving mechanisms 58, 60 independently of each other through respective angles about respective axes b1, b2 which extend substantially perpendicularly to the direction of the recording laser beam L1 applied thereto and the scanning direction, for thereby correcting a scanning line formed on the film (F) out of a skewed condition and also correcting an image plane on the film (F) out of a tilted condition.
摘要翻译：在被偏光器38偏转的记录激光束L1被聚光透镜40集中之后，记录激光束L1被可动反射镜42,44反射到滚筒22上的胶片F上，以便在扫描中扫描胶片F 方向。可移动反射镜42,44通过各自的角度移动机构58,60彼此独立地通过各自的角度相对于相应的轴线b1，b2而相互角度地移动，所述相应的轴线b1，b2基本上垂直于施加到其上的记录激光束L1的方向延伸，扫描方向从而在偏斜状态下校正形成在胶片（F）上的扫描线，并且还可以在倾斜状态下校正胶片（F）上的图像平面。

7. 发明公开

EP0428100A3 Resonant scanner 失效
标题翻译：使用该方法稳定谐振频率和谐振扫描仪
公开(公告)号：EP0428100A3
公开(公告)日：1992-12-23
申请号：EP90121623.4
申请日：1990-11-12
申请人： FUJI PHOTO FILM CO., LTD.
发明人： Inoue, Yoshiaki, c/o Fuji Photo Film Co., Ltd. , Sumi, Katsuto, c/o Fuji Photo Film Co., Ltd.
IPC分类号： H04N1/04 , G02B26/10
CPC分类号： G02B7/1821 , H04N1/053 , H04N1/1135 , H04N1/12 , H04N2201/02439 , H04N2201/0471 , H04N2201/04734 , H04N2201/04739 , H04N2201/04746 , H04N2201/04755 , H04N2201/04794
摘要： A method of the present invention for stabilizing the resonant frequency of a resonant scanner is that thermal energy of the same amount as the heat generated in an optical scanning mode is applied to the scanner section in a non-scanning mode to insure that the variation of the temperature of said resonant light deflector will lie within a predetermined range, whereby the resonant frequency of the oscillation of the reflecting mirror is stabilized. The resonant scanner of the present invention in which the scanner section is heated in the non-scanning mode by supplying the drive coil with an electric current that has a non-resonant frequency or with the heater is constructed. The resonant scanner using said method is capable of achieving precise optical scanning that has an improved dimensional precision in the sub-scanning direction.

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