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1. 发明专利

CA2849742C OPTICAL RECORDING HEAD AND IMAGE FORMING APPARATUS 未知
公开(公告)号：CA2849742C
公开(公告)日：2017-11-21
申请号：CA2849742
申请日：2012-08-30
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： G03F7/24 , G03B27/32 , G03F7/20
摘要： Image forming apparatus 10 of the present invention is an apparatus for forming an image on a surface of recording medium P by applying laser light to recording medium P, the apparatus including a plurality of light sources 31 each of which emits laser light, a plurality of optical fibers 23 and 42 through which laser light respectively emitted from light sources 31 propagates, holder 43 that holds optical fibers 42, and fly-eye lens 50, cylindrical lens array 60, aperture array 70, lens 80a and lens 80b through which laser light emitted from end surfaces of optical fibers 42 passes, wherein each of apertures 71 of aperture array 70 is rectangular,

2. 发明专利

JPH08129145A ROTARY DEFLECTION UNIT 失效
公开(公告)号：JPH08129145A
公开(公告)日：1996-05-21
申请号：JP26917494
申请日：1994-11-01
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： G02B26/10 , H04N1/113
摘要： PURPOSE: To provide a rotary deflection unit of simple constitution which is suppressed in fluctuation in an imaging beam diameter at the time of high-speed revolution and eliminates the need for balance adjustment at the time of rotation. CONSTITUTION: This rotary deflection unit 1 is composed of an optical deflection medium which deflects incident light and a motor 20 for rotating the optical deflection medium. The optical deflection medium has a cube prism 11 formed by oppositely joining the reflection surfaces of two pieces of the same rectangular prisms to each other, an approximately circular columnar-shaped prism holder 13 for fixing the cube prism 11 to a freely rotatable housing 12 and a toric cap 15 and is constituted rotationally symmetrically in weight with the axial line. The hollow part of the cap 15 is formed as an incident port 15a for a laser beam and an exit port 13b is formed in the part of the prism holder 13 directing the eflection surface (optical deflection surface) of its side wall.

3. 发明专利

JPH09113831A OPTICAL BEAM SCANNER 失效
公开(公告)号：JPH09113831A
公开(公告)日：1997-05-02
申请号：JP27387795
申请日：1995-10-23
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： B41J2/44 , G02B26/10 , G02B26/12
摘要： PROBLEM TO BE SOLVED: To provide a scanner which doubles a scanning speed by maintaining image quality at the same level as heretofore without changing an image processing speed. SOLUTION: A cylindrical lens 3 is provided with a movable filter 7 in front thereof so that the λ/2 plate 9 of the movable filter 7 and an ND filter 10 are made changeable over. Light is separated to two beams 11 and 12 by the effect of a double refractive plate 11 of the rear stage when the λ/2 plate 9 is inserted into the optical axis. The beams are not separated when the ND filter 10 is inserted into the optical axis. The changeover to the two beams and the one beam is, therefore, possible if the attenuation rate of the ND filter 10 is previously set at 50%. The high-density scanning at the same speed as heretofore is possible in the same manner as for low-density scanning.

4. 发明专利

JP2002228959A MULTI-BEAM SYNTHESIZING SCANNING RECORDED 失效
公开(公告)号：JP2002228959A
公开(公告)日：2002-08-14
申请号：JP2001028252
申请日：2001-02-05
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： B41J2/44 , G02B26/10 , H04N1/036 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a multi-beam synthesizing scanning recorder which can automatically adjust the sweep spacing of a plurality of light beams. SOLUTION: The recorder has an image forming optical system consisting of laser diodes LD1 and LD2 collimator lenses 7 and 8 for light beams from the LD1 and the LD2, a half-wave plate 5 to change the polarization direction of the light beam from the LD2, a polarizing beam splitter 6 for aligning optical axes from the LD1 and the LD2, cylindrical lenses 10 and 12, a polygon mirror 9, a fθ lens 11 or the like which image a light beam from a polarizing beam splitter 6 on a sensitized material surface 13 to be scanned, and further two hollow micro step motors 30 and 31 mounted with a wedge prism 16. A positioning slit unit 33 is arranged on an imaging surface to automatically deflect a light beam coming from the LD2 in a subscanning direction orthogonal to a scanning direction.

5. 发明专利

JPH10206774A ROTARY SCANNING MECHANISM 失效
公开(公告)号：JPH10206774A
公开(公告)日：1998-08-07
申请号：JP1089597
申请日：1997-01-24
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： B41J2/44 , G02B26/10
摘要： PROBLEM TO BE SOLVED: To provide the rotary scanning mechanism which can maintain a stable image beam by reducing the sticking of dust, dirt, mist, etc., in air on a wave front of a rotary deflector. SOLUTION: The rotary scanning mechanism makes laser light 100, projected from a light source part, incident from an incidence surface of a prism, reflects the laser light 100 at right angles to rotate and deflect it, and converges the reflected light 101 on a recording medium on a drum surface. A holder 1 which has dustproof glass 2 arranged opposite the incidence surface of the prism and is fitted with a film 3 covering grooves as many as an effective scanning area on the cylindrical drum surface opposite a projection surface of the prism is fitted to a flange surface 5 of a motor 6.

6. 发明专利

JPH11167079A CYLINDRICAL INTERNAL SURFACE SCAN TYPE RECORDING DEVICE 失效
公开(公告)号：JPH11167079A
公开(公告)日：1999-06-22
申请号：JP34854397
申请日：1997-12-03
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： B41J2/44 , B41J2/45 , B41J2/455 , G02B26/02 , G02B26/10 , G03B27/72
摘要： PROBLEM TO BE SOLVED: To provide the cylindrical internal surface scan type recording device which uses an inexpensive light source laser as a laser light source and can easily adjust the beam diameter and light quantity. SOLUTION: The quantity of a light beam is adjusted by using deflection characteristics of the laser light and changing the angular position of a deflecting plate 42 by a rotary polarizing plate mechanism. Further, the beam diameter on an image formation surface is adjusted by varying the aperture diameter of a variable stop 38 by a variable stop mechanism according to photosensitive characteristics etc. Those two adjustments are combined to adjust the beam diameter and image formation surface light quantity without greatly varying the output of the semiconductor laser, stabilize the output of the semiconductor laser, and improve the picture quality.

7. 发明专利

JPH09197310A MULTIBEAM SCANNING DEVICE 失效
公开(公告)号：JPH09197310A
公开(公告)日：1997-07-31
申请号：JP790796
申请日：1996-01-19
申请人： NIPPON ELECTRIC ENG
发明人： MORIWAKI HAJIME
IPC分类号： G02B5/04 , G02B5/30 , G02B26/10 , G02B27/28
摘要： PROBLEM TO BE SOLVED: To make it easy to adjust scanning intervals of plural light beams by providing an angular displacement adjustment unit which deflects at least one of plural light beams to a sub-scanning direction crossing an operation direction at a right angle. SOLUTION: A beam 4 emitted by a laser diode LD2 is collimated by a collimator lens 8 into parallel luminous flux, then passes through the angular displacement adjustment unit 14 and is made incident as a P wave on the incidence surface of a deflection beam splitter 6 while shifting from the optical axis by a fine angle. This reflection beam splitter 6 reflects the light beam 4 by its reflecting surface. Further, the angle adjustment unit 14 is composed of a chiroprism formed by combining two wedge prisms. And, the two wedge prisms are rotated on the position where the light beam travels straight in opposite directions by the same angle so that their angles of deflection cancel each other. Therefore, the deflection of the light beam in the sub-scanning direction is adjusted and the light beam can be deflected to the sub-scanning direction.

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