TW201224510A - Detection mirror adjustment structure and laser scanning device thereof - Google Patents

Abstract

A laser scanning device comprises: a base, a detection mirror adjustment structure, and a reflector. The detection mirror adjustment structure is disposed on the base and has a bottom seat, which includes: a first face and a second face. The first face has a convex block protruded on the first face, and the convex block defines the first face as a fixed side and a movable side. The reflector is disposed on the second face. The convex block comes into touch with the base, and the fixed side is elastically fixed on the base, so that the angle of the reflector in the first axial direction can be adjusted by applying a force in the first axial direction to the movable side.

Description

201224510 PRODUCTION PRODUCTION MANUAL (The format and order of this manual: Do not change any more, please do not fill in the ※ part) ※Application number: ※Application date: Team! 2· 0 7 mpc Classification: W ' <2£>〇0.〇1) I. Name of the invention··(Chinese/English) Cl〇>b ^ <2〇〇6*01) Detecting mirror adjustment Structure and laser scanning device II, Chinese invention summary: Ο

A laser scanning device comprising: a base; a detecting mirror adjusting structure, disposed on the base, having a base comprising: a first surface having a protrusion protruding from the first surface, the protruding block Defining a fixed side and a movable side; and a second side; a mirror disposed on the second surface; wherein the bump is in contact with the base, and the fixed side is elastic The ground is fixed to the base, so that the angle of the mirror can be adjusted in the direction of the first axis by applying a force to the movable side in the direction of the two axes. ° III. Abstract of English invention: (omitted) IV. Designated representative map: (1) The representative representative of the case is: Figure (2B). (2) Brief description of the symbol of the representative figure: Detecting mirror adjustment structure 30 First side 32 Active side 322 Post 324 V. If there is a chemical formula in this case (none) Base 31 Bump 321 Fixed side 323 Through hole 325 Please reveal The most advanced age is _chemical formula: Sixth, the invention description: 1 201224510 [Technical field of the invention] The present invention relates to a detection mirror adjustment structure and its laser scanning device, especially a freely adjustable detection mirror An angle adjustment mirror adjustment structure and an electric radiation scanning device thereof.

I [Prior Art] According to the laser scanning device LSIKLaser Scanning: Unit used in the current LASP (paser Beam Print), the laser beam is manipulated by a high-speed rotating polygon mirror (polygon, mirror). The scanning operation 〇 aser beam scanning) is as described in U.S. Patent No. 7,707,171, US Pat. No. 6,377,293, US Pat. No. 6,295,116, or

' ' I LSU uses a half-fruit laser beam to emit a laser beam (丨aser beara), first through a collimator (colliimtor) shaped parallel beam of light, and then through an aperture 'the beam' and then through a column The cylindrical iens are focused to form a line image 're-projected onto a high-speed rotating polygon mirror. The high-speed rotating polygon mirror is uniformly and continuously provided with a polygon mirror which is located at or close to the focus position of the above line image. By rotating the polygon mirror to control the projection direction of the laser beam, when the continuous plurality of mirrors rotate at a high speed, the laser beam incident on one mirror can be extended in the parallel direction of the main scanning direction at the same angular velocity (angular Velocity) is deflected onto a f0 linear scanning lens, and the fΘ linear lens is placed beside the polygon mirror, which can be a single-element scanning lens or a two-piece lens structure. . The function of the f 0 linear scanning lens is that the laser beam incident on the lens through the mirror on the rotating polygon mirror can be focused into an elliptical spot and projected onto a photoreceptor drum, and a linear scan is achieved ( Scanning linearity) requirements. The LSU will have a preliminary scan action before the scan operation is officially started. During the pre-scanning 201224510 action, the laser beam inspection mirror (Beam Detect • · · , · mirror, BD mirror) is reflected beyond the scanning area and reflected by the photo sensor. When the light sensor is connected to the laser beam, the lighter will send a signal to the laser beam printer for signal processing. The laser light will restart the LSU and officially start the scanning action. , , :! ‘ , Bu Due to the long path of the LSU laser beam scanning leather drum, the laser beam printer is bulky. To reduce the volume of the laser beam printer, the LSU can fold the path of the laser beam by adding one or two long beam mirrors, thus reducing the volume of the laser beam printer. In the past, when the LSU was operated, the beam mirror angle was shifted due to the vibration during operation, causing the angle of incidence of the incident beam to the beam reflection 电^electron beam to be deflected. When the LSU scans beyond the scan area, the deflection of the beam mirror angle also causes a slight error in the horizontal position of the laser beam projected onto the beam inspection mirror. Therefore, the laser beam reflected by the beam detecting mirror cannot be accurately projected to the photo sensor and detected by the photo sensor. Therefore, it is necessary to adjust the angle of the beam inspection mirror so that the laser beam can be accurately projected onto the photo sensor. The _-structure of the beam detecting mirror can be found in U.S. Patent No. 6,690,498 B2 and US Pat. No. 7,433,106 B2. The present invention provides an adjustment structure of a beam detecting mirror, which can more easily adjust the beam detecting mirror to improve the complicated structure of the conventional beam detecting mirror adjustment structure. SUMMARY OF THE INVENTION An object of the present invention is to make a beam detecting mirror easy to adjust and to simplify the structure of a beam detecting mirror adjusting structure. In order to achieve the above object, the present invention provides a laser scanning device comprising: a susceptor; a detecting mirror adjusting structure disposed on the pedestal, having a base comprising a first surface and having a convex protrusion On the first side, the bump defines the first side as a fixed side and a movable side; and a second side; a mirror is disposed on the second 201224510=two of the 'the bump> the base The seat contact 'and the fixed side is elastically fixed to the movable side, and the angle of the reflection 蜱 can be adjusted in the first axial direction by applying a force to the movable side in a first axial direction. The laser scanning device k includes an ageing member, wherein the end is fixed to the base, and the other end is pressed against the fixed side of the base. The elastic member is the live-through hole of the base. Through the base ', the movable side of the base is fixed to the base by a screw passing through the through hole, thereby adjusting the angle of the mirror in the first axial direction. ^ The through hole is curved; thus, the angle of the mirror can be adjusted in a rotation direction. ’.’

The fixed side of the base includes a protrusion and the base includes a hole corresponding to the protrusion. When the detection mirror adjustment structure is disposed on the base, the protrusion is engaged with the protrusion Inside the hole. i The cross section of the stud is elliptical. The detection mirror adjustment structure of the present invention can easily adjust the angle of the detection mirror disposed on the adjustment structure of the detection mirror, and the detection mirror can be adjusted to any angle, which has numerous advantages. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to make the present invention more precise and detailed, the structure of the present invention and its technical features are described in detail below with reference to the following drawings: FIG. 1 is a laser scanning device 1 of the present invention. A top view of the structure of one embodiment. The laser scanning device (LSU) of the present invention is used in a laser beam printer. Referring to Fig. 1 'The laser scanning device (LSU) 1 of the present invention comprises: a light source 11 capable of emitting a light beam, and a light source for converting the beam from the light source 11 into a beam parallel to the axis of the collimating mirror 丨2 a straight mirror 12, a cylindrical mirror 13 for converging the parallel beams, a rotating polygon mirror 14 driven by a motor (not shown) to rotate and reflect the light from the cylindrical mirror 13 for rotating The light beam reflected by the polygon mirror 14 is focused into two f Θ lenses 15, 16 having a spot having an appropriate diameter along a scanning line on the surface of a photosensitive drum (not shown), and a photo lens 16 and sensitized at the f 0 lens 16 The optical path between the drums is used to reflect the light beam passing through the f 0 lens 16 to the image mirror 17 of the 201224510 drum. A predetermined still latent image is formed on the photosensitive drum by controlling the on/off state of the light source. ! In addition, the 'unexplained mine' scanning device 1 further includes a 'beam mirror 18 and a sync detekting unit 20. The beam mirror 18, t is placed between the optical paths of the two lenses 15, 16 The optical path is folded back to reduce the volume of the laser beam printer. The synchronous sensing unit 20 includes a light inspection mirror 21, a detection mirror adjustment structure 30, and a condenser lens 22 as a gray light sensor 23. Detection mirror 21

Placed on the inspection mirror adjustment structure 30. The detection k adjustment junction is located between the f 0 lens 16 and the focus lens 22. The beam detecting mirror 21 is used to project a beam from the f 0 lens [6 to the focus lens 22, and the focus mirror is focused on the photo sensor 23. Among them, the setting of the focus lens 22 is selectively set. Except for the above-mentioned components, the structure and function of each of the components are the same as those of the conventional laser scanning device except that the detecting mirror is not 30, and the description thereof is omitted here. 2A and 2B are structural diagrams of an embodiment of the invention for detecting a 铙 铙 structure 3 〇 ', wherein FIG. 2A is a top view of the detection of a mirror adjustment of the alkali 30! Referring to Figures 2A and 2B, the wheel alignment adjustment structure 3 includes a base 31 having a first face 32 and a second face 33. The first face '32 has a projection 321 protruding therefrom. The first face 32' and the bump 321 divides the first face 32 into a movable side 322 and a fixed = 23. In the present embodiment, the 'bump 321 is elongated and traversing the entire first face, The two long sides of the protrusion 321 further include a through hole 325 and a protrusion 324 toward the fixed side 323 and the movable side 322. The movable side 322 of the first surface 32 of the through hole 31 extends through the base 31. The cross-section of the solid _23 ° stud 324 of the seat 31 can be I, but not limited thereto. It can also be other shapes. The detection if figure includes a detecting mirror engaging unit for one Figure 3 Invented laser scanning split for placing the inspection mirror adjustment structure ί 201224510 Structure of the pedestal 19. ' Refer to Figure 3, Figure 2A Detecting mirror adjustment 铋 30 series setting The laser 1 is mounted on one of the pedestals I9. The seat η includes a hole m, a second hole 192 and a third hole 193. The position of the first hole 191 corresponds to the through hole 325 of the detecting mirror adjusting structure 3 。. The position of the second hole 192 corresponds to the position of the protrusion 324 of the detecting mirror adjusting structure 3. The third hole 193 can be described below.

4A and FIG. 3A are the combined view of the detection structure 3〇 of the present invention placed on the pedestal 19 of the lei 1; wherein FIG. 4A′ is an exploded view, FIG. 4B is a view of FIG. 4A and FIG. The combination of the structure 30 and the bud scanning 丨 pedestal 19 firstly corresponds the through hole 325 of the detecting mirror adjusting structure 30 with the hole 191 of the pedestal 19, while the stud 324 (see FIG. 2B) and the pedestal 19 The second hole 192 corresponds. Then 'will inquire,: adjust the structure: the twist is placed on the base 19, so that the bump 321 of the base 31 (see the song 2B) will be in contact with the plug, and the stud 324 will be engaged with the base 19龛Two holes 1 as. Since the cross section of the studs such as 4 is an ellipse ‘ when engaged with the second hole ^, the bottom and the base 19 are combined = firmly = no left and right movement. > Next, the fixed side 323 of the seat 31 is elastically fixed to the base 19. This embodiment is fixed to the base 19 by the end of the elastic S member 35, and the other end is pressed against the second side of the fixed side 323 of the base 31; Thus, by applying a force F to the movable side 322 in a first axial direction (i.e., the X-axis in the figure), the angle of the mirror 21 can be adjusted in the direction of the first axis. The elastic member 35 can be implemented as a spring piece or as a other piece having the same function. And the screw 36 is passed through the hole of the elastic piece, such as the hole 193 of the base 19, so that the elastic piece is fixed on the base 19, and the other piece of the elastic piece is bottomed (four). Therefore, the solid 323 of the base 31 is elastically fixed to the position of the base pressure 201224510, so that the angle of the mirror 21 can be adjusted. Fig. 5A is a view showing another embodiment of the through hole 325 of the detecting mirror adjusting structure 3 of the present invention. ® 5Β is a combination of the structure of the reduction mirror furnace μ placed on the base 19 of the laser scanning device i. 1 '丨;1 : ί ^·ι 参, 图 SA and 5B 'The invention; ^ Mirror adjustment structure 3 〇 through hole 325 can be set into a fox shape 'So when the sodium mirror adjustment is attached: Yu hinge placed When the base 丨9 of the laser scanning device is ,, the waste seat 31 can be, the angle screw 34 ί贞lu is in the position of the through hole 325 and is read in the direction of the rotation 1 (such as the arrow _ in the middle arrow), ^ The angle of the oscilloscope 21 disposed on the detection mirror adjustment node f 30 is adjusted. In the present embodiment, the base 31 is not provided with a stud 324i!. _. Further, through the curved through hole 325, the detecting mirror adjusting structure 3 〇 γ adjusts the detecting mirror 21 located on the detecting mirror adjusting structure 3 任意 at an arbitrary angle and degree in the X-axis direction and the rotating direction. -: By the inspection mirror adjustment structure of the present invention, the detection mirror disposed on the detection mirror adjustment structure can be easily adjusted, and the detection mirror can be adjusted to any angle in either direction, which has numerous advantages. ; 'll ί,: ι ' . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Many changes, modifications, and even equivalents may be made within the spirit and scope of the invention as defined by the appended claims.

J [Simple Description of the Drawing] =1 is a top view of the structure of an embodiment of the laser scanning device of the present invention. 2A is a structural diagram of an embodiment of the detecting mirror adjusting structure of the present invention, wherein the top view of the detecting mirror adjusting structure is a view of the detecting mirror adjusting structure. FIG. 3 is a structural diagram of a sinister base for placing a detecting mirror adjustment structure according to the present invention. 4B is a combination diagram of the detection mirror adjustment structure of the present invention placed on the LSU base, and FIG. 4A is an exploded view, and FIG. 4B is a combined diagram. And the port is a structural diagram of another embodiment of the through hole of the detecting mirror adjusting structure of the present invention. Figure 5 is a combination of the inspection mirror adjustment structure of the present invention placed on the base of the laser scanning device 201224510. [Main component symbol description] ! ' ';:. Laser scanning device (LSU) l 11 source 11 collimating mirror 12 pull ©^13 rotating polygon mirror 14 13⁄4 lens 15, 16 image mirror 17 beam mirror 18 pedestal 19 First hole 191 Second hole 192 Third hole 193 Synchronous sensing unit 20 Beam detecting mirror 21 Focusing lens 22 Photo sensor 23 Detecting mirror adjustment structure 30 Base 31 First side 32 Bump 321 Active side 322 Fixed side 323 Bump 324 Through hole 325 Second side 33 Detecting mirror engagement unit 331 Screw 34 Elastic element 35 Hole 351 Screw 36

Claims (1)

201224510 VII, the scope of application for patents: τ, 1, a laser scanning device, including a pedestal; a 1 whale splicing on the fresh seat 'with-base: contains a base iii bumps & a first surface, the bump defines a solid surface and a movable surface; and a second surface; a mirror is disposed on the second surface; the i seat contacts 'and The fixed side is elastically fixed to the base In the direction of the second axis, the angle of the anti-secret is achieved! The force scanning device is applied to the movable side 叮, the 芝 laser scanning #, wherein the laser scanning device further comprises a 7L '-end fixed to the tomb, and another The end is pressed against the fixed side of the base. The optical scanning element according to claim 2, wherein the elastic element is a spring piece. 4. The laser scanning device as claimed in claim 1 , wherein the movable side of the base has a “through hole” that passes through the bottom of the base, and the movable side is passed through the through hole by a screw. The angle is the angle of the mirror upstream of the first age. 5. The laser scanning device according to claim 4, wherein the through hole is curved, so that the angle of the mirror The laser scanning device of claim 1, wherein the fixed side of the base comprises a protrusion, and the base comprises a hole, the position of the hole corresponding to The protruding post is engaged in the hole when the detecting mirror adjusting structure is disposed on the base. 7. The laser scanning device according to claim 6, wherein the protruding column is transversely broken 8. The laser scanning device of claim 6, wherein the laser scanning device further comprises an elastic member, one end of which is fixed to the base, and the other end of which is pressed against the fixed side of the base. The position of the second surface corresponding to the stud. 201224510 On the pedestal, the upper: fixed-surface 'the bump defines the first surface as a second® for arranging a reflection _·丨i such as being fixed to the base] Applying force to the active side in the direction of the first axis, can be ''^Χί9 ^ the through hole is fixed on the ϊΐίί by the angle of the mirror through a screw. The μ base is adjusted in the direction of the first axis. The reflection: the detection mirror adjustment structure, wherein the through hole is curved, and the angle of the 12-beam can be adjusted in the rotation direction. The detection mirror adjustment structure described in the human H 9 is the base of the towel. The side cover i,it and the base includes a hole, the position of the Wei hole corresponds to the convex hole = the fine mirror touch structure is set (4) when the base is attached, the convex column is engaged with the 13th item 12 Detecting mirror adjustment structure, wherein the cross section of the stud is