CN220419798U - Optical scanning device and image forming apparatus - Google Patents
Optical scanning device and image forming apparatus Download PDFInfo
- Publication number
- CN220419798U CN220419798U CN202321793827.3U CN202321793827U CN220419798U CN 220419798 U CN220419798 U CN 220419798U CN 202321793827 U CN202321793827 U CN 202321793827U CN 220419798 U CN220419798 U CN 220419798U
- Authority
- CN
- China
- Prior art keywords
- mirror
- scanning device
- optical scanning
- polygon mirror
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 70
- 238000005070 sampling Methods 0.000 claims description 19
- 238000005192 partition Methods 0.000 claims description 18
- 230000003760 hair shine Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 17
- 238000000034 method Methods 0.000 abstract description 3
- 238000003384 imaging method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Mechanical Optical Scanning Systems (AREA)
Abstract
The utility model discloses an optical scanning device and an image forming device, which belong to the technical field of image forming, wherein the optical scanning device comprises a shell, a laser, an optical component and a separation component, the shell is provided with a containing cavity and an opening part, the opening part is communicated with the containing cavity and faces to a photothermographic element, the optical component and the separation component are both arranged in the containing cavity, the optical component comprises a polygon mirror and a wedge-shaped mirror, the polygon mirror is rotatably arranged in the containing cavity, the polygon mirror is provided with a plurality of reflecting surfaces, the wedge-shaped mirror is fixedly arranged in the containing cavity, the separation component comprises a first separation plate and a second separation plate, the first separation plate is positioned on one side of the wedge-shaped mirror, the second separation plate is positioned on one side of the polygon mirror, a notch part is formed between the first separation plate and the second separation plate, and light beams emitted by the laser irradiate on one reflecting surface of the polygon mirror through the notch part. In this application, the light path is difficult to cause the interference in propagation process, guarantees the precision of using of polygon mirror, has improved optical scanning device's scanning precision on the whole.
Description
Technical Field
The present utility model relates to the field of image forming technologies, and in particular, to an optical scanning device and an image forming apparatus including the same.
Background
In the technical field of image forming, especially in the technical field of laser printers, an optical scanning device is required to scan a photothermographic element with a photosensitive layer, so as to form a latent image on the photothermographic element, and then a complete and clear image is acquired by a heat treatment device. In the prior art, a laser, a polygon mirror and the like are generally arranged in an optical scanning device, and a light beam emitted by the laser irradiates on the reflecting surface of the polygon mirror so as to scan the photothermographic element later, but as each lens is dispersedly arranged in a shell, the light beam may be reflected to the periphery after irradiating on the polygon mirror, so that mutual interference among light paths is caused, the use precision of the polygon mirror is affected, the scanning precision of the optical scanning device is reduced as a whole, and the imaging effect of the final photothermographic element is poor.
Disclosure of Invention
In order to overcome the defects in the prior art, one of the purposes of the present utility model is to provide an optical scanning device that improves the precision of using a polygon mirror to improve the scanning precision as a whole.
In order to overcome the disadvantages of the prior art, a second object of the present utility model is to provide an image forming apparatus that improves the accuracy of use of a polygon mirror to improve the scanning accuracy as a whole.
One of the purposes of the utility model is realized by adopting the following technical scheme:
the utility model provides an optical scanning device, includes casing, laser instrument, optical subassembly, still includes the separation subassembly, the casing is equipped with holds chamber, opening, the opening with hold chamber intercommunication and towards photothermographic element, the laser instrument is installed on the casing, optical subassembly, separation subassembly are all installed hold the intracavity, optical subassembly includes polygon mirror, wedge mirror, the polygon mirror is rotated and is installed hold the intracavity, the polygon mirror is equipped with a plurality of reflecting surfaces, wedge mirror fixed mounting is in hold the intracavity, the separation subassembly includes first baffle, second baffle, first baffle is located wedge mirror one side, the second baffle is located polygon mirror one side, form the notch portion between first baffle, the second baffle, the light beam that the laser instrument sent passes through notch portion shines on one of polygon mirror reflecting surface.
Further, the shell comprises a base and an upper cover, the base and the upper cover are fixedly connected, and the opening part is arranged on the base.
Further, the optical assembly further comprises a reflecting mirror which is obliquely arranged in the accommodating cavity, and the reflecting mirror is provided with a reflecting surface which faces the opening part.
Further, the optical scanning device further comprises a baffle plate, wherein the baffle plate is arranged in the accommodating cavity and positioned between the polygon mirror and the reflecting mirror, and is used for shielding part of reflecting surfaces at two ends of the reflecting mirror.
Further, the laser is arranged in the accommodating cavity.
Further, the housing is integrally formed with the partition assembly.
Further, the mirror extends in an elongated shape along the bottom wall of the housing.
Further, the optical assembly further includes an fθ lens disposed on one side of the polygon mirror, the fθ lens extending in an elongated shape along a bottom wall of the housing.
Further, the optical scanning device further comprises a receiver, the optical assembly further comprises a zero sampling reflector, the zero sampling reflector is arranged on one side of the fθ lens, the receiver is arranged in the accommodating cavity, and the receiver is used for receiving light reflected by the zero sampling reflector.
The second purpose of the utility model is realized by adopting the following technical scheme:
an image forming apparatus includes any one of the above optical scanning devices.
Compared with the prior art, the optical scanning device comprises a shell, a laser, an optical component and a separation component, wherein the shell is provided with a containing cavity and an opening part, the opening part is communicated with the containing cavity and faces to a photothermographic element, the laser is arranged on the shell, the optical component and the separation component are all arranged in the containing cavity, the optical component comprises a polygon mirror and a wedge-shaped mirror, the polygon mirror is rotatably arranged in the containing cavity, the polygon mirror is provided with a plurality of reflecting surfaces, the wedge-shaped mirror is fixedly arranged in the containing cavity, the separation component comprises a first partition plate and a second partition plate, the first partition plate is positioned on one side of the wedge-shaped mirror, the second partition plate is positioned on one side of the polygon mirror, a notch part is formed between the first partition plate and the second partition plate, and a light beam emitted by the laser irradiates on one reflecting surface of the polygon mirror through the notch part. When the optical scanning device is used, light beams emitted by the laser irradiate the wedge-shaped mirror through the collimating mirror and the emergent light sampling reflector lamp to deviate, then irradiate a reflecting surface of the polygon mirror through the notch part to form scanning light, and then project the scanning light onto a region to be scanned through the reflector and the opening part to scan, so that the light paths are not easy to interfere in the propagation process, the use precision of the polygon mirror is not influenced, the scanning precision of the optical scanning device is improved as a whole, and the imaging effect of the final photothermographic element is better; the device has compact installation of each component, less occupied space, simpler overall structure and lower production cost.
Drawings
FIG. 1 is an assembled view of an optical scanning device according to the present utility model;
FIG. 2 is a perspective view of the interior of the optical scanning device of FIG. 1;
FIG. 3 is a schematic view of the interior of the optical scanning device of FIG. 1;
FIG. 4 is a partial cross-sectional view of the optical scanning device of FIG. 1;
FIG. 5 is a schematic view of the optical path of the optical scanning device of FIG. 1 in operation;
in the figure: 10. an optical scanning device; 11. a housing; 111. a receiving chamber; 112. an opening portion; 113. a base; 114. an upper cover; 12. a laser; 13. an optical component; 131. a collimator lens; 132. a light-emitting sampling reflector; 133. a light-emitting energy focusing mirror; 134. a light deflection member; 1341. a polygon mirror; 13411. a reflective surface; 1342. a wedge mirror; 135. fθ lens; 136. a cylindrical mirror; 137. a zero sampling mirror; 138. a reflecting mirror; 1381. a reflecting surface; 14. a receiver; 15. a baffle; 16. a partition assembly; 161. a first separator; 162. a second separator; 163. a notch portion.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or be present as another intermediate element through which the element is fixed. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1-5, the optical scanning device 10 includes a housing 11, a laser 12, an optical assembly 13, a receiver 14, a baffle 15, and a baffle 16.
The housing 11 is mounted on the holder assembly 20, and the housing 11 is provided with a housing chamber 111 and an opening 112, and the opening 112 communicates with the housing chamber 111. In this embodiment, the housing 11 includes a base 113 and an upper cover 114, the base 113 and the upper cover 114 are fixedly connected, the opening 112 is disposed on the base 113, and the conveying assembly 30 is disposed below the opening 112, so that the exposure device is closely matched with a heat treatment device with an L-shaped cross section. In this embodiment, the housing 11 is made of a resin material, and is structurally stable and resistant to high temperatures. In other embodiments, the housing 11 may be made of plastic or metal material, selected according to the user's use requirements and production costs.
The laser 12 is mounted on the housing 11 for emitting a plurality of light beams in successive time periods, wherein the wavelength and intensity of the light beams can be selected according to the use requirements. In this embodiment, the laser 12 is also disposed in the accommodating cavity 111, so that the whole optical scanning device 10 has a compact structure and occupies less external space. In a preferred embodiment, the laser 12 can be rotated parallel to the emitting surface of the beam, so that the position of the light emitting point can be adjusted.
The optical assembly 13 is installed in the accommodating chamber 111, and the optical assembly 13 includes a collimator lens 131, an outgoing light sampling mirror 132, an outgoing light energy focusing mirror 133, a light deflector 134, an fθ lens 135, a cylindrical mirror 136, a zero position sampling mirror 137, and a reflecting mirror 138.
The collimator 131 can focus the light beam emitted by the laser 12, so as to prevent the laser point finally projected onto the photothermographic element from being too large, thereby causing imaging blurring of the photothermographic element and affecting the scanning precision of the device.
The light-emitting sampling mirror 132 can transmit most of the light, and reflect a small part of the light for feedback, so that the size and intensity of the emitted light beam can be adjusted by the laser 12.
The light-emitting energy focusing mirror 133 is matched with the light-emitting sampling reflecting mirror 132, so that long-distance light can be focused on one point, a high-brightness light spot is formed, the light can be more concentrated and intensified, and the light reflected by the light-emitting sampling reflecting mirror 132 is sensed and timely fed back for adjustment.
The light deflecting member 134 includes a polygon mirror 1341, a wedge-shaped mirror 1342, the polygon mirror 1341 being rotatably mounted within the accommodation chamber 111, the polygon mirror 1341 including a plurality of reflecting surfaces 13411 on the sides of a regular polygon rotator and being rotatable about the central axis of the regular polygon, i.e., about an axis perpendicular to a plane containing the regular polygon at positions equidistant from the respective vertices. The reflecting surface 13411 of the light beam is arranged parallel to the rotation axis along each side of the regular polygon, and the light beam emitted from the above-described laser 12 is irradiated onto a reflecting surface 13411 so as to be incident on the fθ lens 135, the reflecting mirror 138 as scanning light. In addition, when the polygon mirror 1341 rotates, the incident angle of the light beam to be irradiated onto each reflecting surface 13411 is continuously changed, thereby deflecting the reflected light.
The wedge-shaped mirror 1342 is fixedly installed in the accommodating cavity 111 for beam control deflection, and the inclination angles of the two sides of the wedge-shaped mirror 1342 are smaller, so that the light path deflects to the thicker side, and a certain angle deflection can be performed on the incident light path. The beam from the laser 12 is deflected by the wedge 1342 and then impinges on a reflective surface 13411 of the polygon 1341.
The fθ lens 135 is provided on the polygon mirror 1341 side, and the fθ lens 135 extends in an elongated shape along the bottom wall of the housing 11 for adjusting the scanning speeds of the light beams to be equal to each other. Since the light beams are deflected by the polygon mirror 1341, the distance from the reflecting surface 13411 of the polygon mirror 1341 to the region to be scanned changes, and the scanning speed of each light beam can be adjusted by the fθ lens 135.
The cylindrical mirror 136 can form a light spot in the horizontal direction, and can adjust the size of the light spot to meet different imaging requirements.
The zero sampling mirror 137 is used for judging whether other optical components 13 are installed in place or not to determine the initial position of the optical scanning device 10 when the optical scanning device 10 starts to work, so as to ensure the scanning precision of the optical scanning device 10.
The mirror 138 extends along the bottom wall of the housing 11 in an elongated shape, the mirror 138 is provided with a reflecting surface 1381, the reflecting surface 1381 faces the opening 112, and the deflected light beam is projected onto the region to be scanned via the mirror 138 and the opening 112 to perform scanning.
The receiver 14 is installed in the accommodating cavity 111, and is used for being matched with the zero sampling reflector 137 to confirm zero position, so that the scanning precision of the optical scanning device 10 is guaranteed, the laser 12 is used for emitting common light beams, when the receiver 14 senses the light ray signals reflected by the zero sampling reflector 137, the optical component 13 is indicated to be installed and adjusted in place, and at the moment, the laser 12 is used for emitting a plurality of light beams required for scanning the photothermographic element.
Baffle 15 sets up in holding chamber 111 and is located fθ lens 135, between the speculum 138, because the photo and thermal element's that waits to scan size difference, the length of opening 112 is generally greater than the length of waiting to scan the regional length, is used for shielding the partial reflecting surface 1381 at speculum 138 both ends, guarantees the scanning scope of this optical scanning device 10, avoids causing the sky to penetrate, probably leads to light diffuse reflection to photo and thermal element like this, influences the scanning accuracy of optical scanning device 10, still can cause laser beam's wasting of resources, improves manufacturing cost. In this embodiment, the baffle 15 is made of sponge.
The separation component 16 is disposed in the accommodating cavity 111, the separation component 16 includes a first partition 161 and a second partition 162, the first partition 161 is located at one side of the wedge-shaped mirror 1342, the second partition 162 is located at one side of the polygon mirror 1341, a notch 163 is formed between the first partition 161 and the second partition 162, the notch 163 faces a reflecting surface 13411, a light beam emitted by the laser 12 is deflected by the wedge-shaped mirror 1342 and then irradiates onto a reflecting surface 13411 of the polygon mirror 1341 through the notch 163, at this time, a light ray reflected on the reflecting surface 13411 can only be irradiated onto lenses such as the fθ lens 135 and the reflecting mirror 138, and can not be irradiated onto the lenses such as the collimator lens 131 and the light-emitting sampling reflecting mirror 132, mutual interference between the lenses can not be caused, and confusion of light paths can not be caused.
When the optical scanning device is used, light beams emitted by the laser 12 are firstly irradiated to the wedge-shaped mirror 1342 through the collimating mirror 131, the emergent light sampling reflecting mirror 132 and the like to deviate, then irradiated to a reflecting surface 13411 of the polygon mirror 1341 through the notch 163 to form scanning light, and then projected to a region to be scanned through the reflecting mirror 138 and the opening 112 to scan, so that the light paths are not easy to interfere in the propagation process, the use precision of the polygon mirror is not influenced, the scanning precision of the optical scanning device is integrally improved, and the imaging effect of the final photo-thermal element is better; the device has compact installation of each component, less occupied space, simpler overall structure and lower production cost.
The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that, for those skilled in the art, it is possible to make several modifications and improvements without departing from the concept of the present utility model, which are equivalent to the above embodiments according to the essential technology of the present utility model, and these are all included in the protection scope of the present utility model.
Claims (10)
1. An optical scanning device, includes casing, laser instrument, optical component, its characterized in that: still include the partition assembly, the casing is equipped with and holds chamber, opening, the opening with hold chamber intercommunication and towards photo and thermal element, the laser instrument is installed on the casing, optical assembly, partition assembly are all installed hold the intracavity, optical assembly includes polygon mirror, wedge mirror, the polygon mirror rotates and installs hold the intracavity, the polygon mirror is equipped with a plurality of reflecting surfaces, wedge mirror fixed mounting is in hold the intracavity, the partition assembly includes first baffle, second baffle, first baffle is located wedge mirror one side, the second baffle is located polygon mirror one side, form the notch portion between first baffle, the second baffle, the light beam that the laser instrument sent passes through the notch portion shines one on the reflecting surface of polygon mirror.
2. The optical scanning device according to claim 1, wherein: the shell comprises a base and an upper cover, wherein the base and the upper cover are fixedly connected, and the opening part is arranged on the base.
3. The optical scanning device according to claim 1, wherein: the optical assembly further comprises a reflecting mirror which is obliquely arranged in the accommodating cavity, and the reflecting mirror is provided with a reflecting surface which faces the opening part.
4. An optical scanning device according to claim 3, characterized in that: the optical scanning device further comprises a baffle plate, wherein the baffle plate is arranged in the accommodating cavity and positioned between the polygon mirror and the reflecting mirror, and is used for shielding partial reflecting surfaces at two ends of the reflecting mirror.
5. The optical scanning device according to claim 1, wherein: the laser is disposed within the receiving cavity.
6. The optical scanning device according to claim 1, wherein: the housing is integrally formed with the partition assembly.
7. The optical scanning device according to claim 1, wherein: the mirror extends in an elongated shape along a bottom wall of the housing.
8. The optical scanning device according to claim 1, wherein: the optical assembly further includes an fθ lens disposed on one side of the polygon mirror, the fθ lens extending in an elongated shape along a bottom wall of the housing.
9. The optical scanning device according to claim 8, wherein: the optical scanning device further comprises a receiver, the optical assembly further comprises a zero sampling reflecting mirror, the zero sampling reflecting mirror is arranged on one side of the fθ lens, the receiver is arranged in the accommodating cavity, and the receiver is used for receiving light reflected by the zero sampling reflecting mirror.
10. An image forming apparatus, characterized in that: an optical scanning device comprising any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321793827.3U CN220419798U (en) | 2023-07-10 | 2023-07-10 | Optical scanning device and image forming apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321793827.3U CN220419798U (en) | 2023-07-10 | 2023-07-10 | Optical scanning device and image forming apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220419798U true CN220419798U (en) | 2024-01-30 |
Family
ID=89655860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321793827.3U Active CN220419798U (en) | 2023-07-10 | 2023-07-10 | Optical scanning device and image forming apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220419798U (en) |
-
2023
- 2023-07-10 CN CN202321793827.3U patent/CN220419798U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0093583B1 (en) | Apparatus for scanning a plane with light beams | |
| JP2019128232A (en) | Lidar apparatus | |
| JP4728584B2 (en) | Optical scanning apparatus, image forming apparatus, and color image forming apparatus | |
| KR100335624B1 (en) | Laser beam scanning apparatus | |
| CN220419798U (en) | Optical scanning device and image forming apparatus | |
| CN116719214A (en) | Optical scanning device and image forming apparatus | |
| JPH0996769A (en) | Method and device for adjusting optical axis of optical scanner and optical scanner | |
| JP6958383B2 (en) | Rider device | |
| KR20060134731A (en) | Light scanning unit and light source unit for the same | |
| JP2000028944A5 (en) | ||
| KR20010011931A (en) | Laser scanning apparatus | |
| CN113126460A (en) | Laser scanning unit | |
| JP3466841B2 (en) | Scanning optical device | |
| JP7035558B2 (en) | Rider device | |
| JPH08304728A (en) | Slit plate loading structure for optical scanner | |
| CN116859690B (en) | Exposure device | |
| JP7155526B2 (en) | lidar device | |
| US7184070B2 (en) | Exposure device including housing rotated about projection | |
| JP2000147399A (en) | Exposure device, and image forming device including the same | |
| KR100364405B1 (en) | Optical scanning device | |
| JPS63316819A (en) | Light beam scanning device | |
| KR20060115451A (en) | Scanning optical lens for light scanning unit | |
| KR100265725B1 (en) | Laser beam scanning apparatus | |
| KR100335625B1 (en) | Laser beam scanning device | |
| JP2001281588A (en) | Emission position adjustment structure for plane- parallel plane |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |