Light optical scanning system

Abstract

The invention discloses a portable optical scanning system, which relates to the technical field of optical scanning and comprises a scanner shell, and a laser emitting unit, a collimating and shaping two-in-one lens, an F-theta two-in-one lens, a rotatable rotating mirror, a receiving surface and a counting unit are arranged in the scanner shell. The collimating lens and the shaping lens are integrated into a complete collimating and shaping two-in-one lens, and the counter lens and the F-theta lens are integrated into an integral F-theta two-in-one lens, so that the space required by the interior of the scanner shell is greatly reduced, the laser emitting unit obliquely emits laser, and the scanning efficiency is greatly improved. The horizontal distance between the laser emitting unit and the rotating mirror is reduced, so that the space required by the interior of the scanner shell is greatly reduced, the size of the scanner is reduced, and the size of the scanner is miniaturized compared with that of an existing scanner.

Description

Technical Field

[0001] This invention relates to the field of optical scanning technology, and more specifically to a lightweight optical scanning system. Background Technology

[0002] A scanner is a device that captures images and converts them into a digital format that a computer can display, edit, store, and output. It uses photosensitive devices to convert detected light signals into electrical signals, and then converts the electrical signals into digital signals through an analog-to-digital (A / D) converter, which are then transmitted to a computer.

[0003] The scanners currently in use generally refract the emitted laser through multiple lenses and distribute it on the receiving surface to print the desired pattern. Because the scanner integrates a variety of components such as different lenses, the overall structure of the scanner is relatively bulky, making it impossible to miniaturize and lighten it, resulting in poor scanner convenience. Summary of the Invention

[0004] The purpose of this invention is to provide a lightweight optical scanning system that solves the technical problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: A lightweight optical scanning system includes a scanner housing. Inside the scanner housing are arranged a laser emitting unit, a collimating and shaping lens, an F-theta lens, a rotatable mirror, a receiving surface, and a counting unit. The laser emitted by the laser emitting unit passes sequentially through the collimating and shaping lens, the rotating mirror, and the F-theta lens to the receiving surface and the counting unit.

[0006] As a preferred embodiment of the present invention, the collimating and shaping lens includes a collimating lens and a shaping lens integrally formed, and both the collimating lens and the shaping lens are disposed inside the scanner housing. The laser passes through the collimating lens and the shaping lens in sequence, and the surface of the collimating lens is irregular.

[0007] As a preferred embodiment of the present invention, the F-theta dual-lens includes a counter lens and an F-theta lens of integral construction, and both the counter lens and the F-theta lens are disposed inside the scanner housing. The laser passes through the counter lens to the counting unit for counting, and then passes through the F-theta lens to the receiving surface.

[0008] In a preferred embodiment of the present invention, the laser emission direction of the laser emitting unit is tilted downward.

[0009] In a preferred embodiment of the present invention, the rotating mirror is a four-sided rotating mirror and is driven to rotate by a motor.

[0010] As a preferred embodiment of the present invention, an aperture is provided inside the scanner housing, and the aperture is disposed between the laser emitting unit and the collimating and shaping lens.

[0011] In a preferred embodiment of the present invention, the receiving surface, the F-theta dual-lens and the rotating mirror are arranged sequentially from top to bottom inside the scanner housing.

[0012] In a preferred embodiment of the present invention, the counter lens is located at one edge of the F-theta lens.

[0013] Compared with the prior art, the present invention has the following advantages: This invention integrates the collimating lens and the shaping lens into a complete collimating and shaping dual-lens, and integrates the counter lens and the F-theta lens into a single F-theta dual-lens, which greatly reduces the space required inside the scanner housing. Secondly, the laser emitting unit emits lasers at an angle, which reduces the horizontal distance between the laser emitting unit and the rotating mirror. Therefore, the space required inside the scanner housing is greatly reduced, thereby reducing the size of the scanner and achieving miniaturization compared to existing scanners. Attached Figure Description

[0014] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0015] Figure 1 A schematic diagram of the principle of a lightweight optical scanning system provided by the present invention; Figure 2 A schematic diagram of a first surface shape of a collimating lens is provided for the present invention; Figure 3 This is a schematic diagram of a second surface shape for a collimating lens, which is provided for the present invention.

[0016] The labels in the diagram represent the following: 1. Laser emitting unit; 2. Collimating and shaping lens; 3. F-theta lens; 4. Rotating mirror; 5. Receiving surface. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0019] like Figures 1 to 3 As shown, the present invention provides a lightweight optical scanning system, including a scanner housing. Inside the scanner housing are arranged a laser emitting unit 1, a collimating and shaping dual-lens 2, an F-theta dual-lens 3, a rotatable rotating mirror 4, a receiving surface 5, and a counting unit. The laser emitted by the laser emitting unit 1 passes sequentially through the collimating and shaping dual-lens 2, the rotating mirror 4, and the F-theta dual-lens 3 to the receiving surface 5 and the counting unit.

[0020] The collimating and shaping lens 2 includes a collimating lens and a shaping lens integrally formed, and both the collimating lens and the shaping lens are set inside the scanner housing. The laser passes through the collimating lens and the shaping lens in sequence, and the surface of the collimating lens is irregular.

[0021] The F-theta dual-lens 3 includes a counter lens and an F-theta lens with an integral structure. Both the counter lens and the F-theta lens are located inside the scanner housing. The laser passes through the counter lens to the counting unit for counting, and then passes through the F-theta lens to the receiving surface 5.

[0022] When the scanner of this application is in use, the laser emitted by the laser emitting unit 1 passes through a collimating lens, a shaping lens, a rotating mirror 4, and an F-theta lens to the receiving surface 5 (equivalent to the toner cartridge of a printer). The F-theta lens uniformly scans the light beam that has passed through the rotating mirror 4 onto the receiving surface 5, forming a diffraction spot on the receiving surface 5. As the rotating mirror 4 rotates, it forms lines of scanning spots to obtain the desired image, which is then printed. After passing through the rotating mirror 4, the emitted laser is refracted by a counter lens to a counting unit for counting. The counting unit is used to control whether the laser emitting unit 1 emits laser light and to record the number of printed lines. At the same time, it confirms the time of printing the first dot on the carbon paper. Subsequently, the laser passes through the F-theta lens again to the receiving surface 5 to form a diffraction spot.

[0023] Because the collimating lens and the shaping lens are integrated into one unit, namely the collimating and shaping dual-lens 2, and the counter lens and the F-theta lens are also integrated into one unit, namely the F-theta dual-lens 3, the space required for the collimating lens and the shaping lens to be separately installed in the scanner housing is reduced, as is the space required for the counter lens and the F-theta lens to be separately installed in the scanner housing. This reduces the size of the scanner housing, resulting in a smaller structure compared to existing scanners and enhanced ease of use.

[0024] like Figure 2 and Figure 3 As shown, when the collimating and shaping lens 2 is continuously irradiated by a laser, the part closer to the laser emitting unit 1 is the collimating lens, and the part farther away from the laser emitting unit 1 is the shaping lens. The surface of the collimating lens is irregular, thereby reducing the temperature and aligning the image of the collimating lens. Specifically, the surface of the collimating lens can be convex or concave, and has some irregular convex surfaces.

[0025] exist Figure 1 In the diagram, the counting unit and the laser emitting unit 1 are located in the same area inside the scanner housing (not shown in the attached diagram), that is, the counting unit is... Figure 1 The laser emitting unit is located at point 1.

[0026] The laser emission direction of laser emitting unit 1 is tilted downwards.

[0027] The laser emitting unit 1 emits laser light at an angle downwards, which reduces the distance between the laser emitting unit 1 and the rotating mirror in the horizontal direction, thereby reducing the width of the scanner housing and further miniaturizing it.

[0028] Rotating mirror 4 is a four-sided rotating mirror, and its rotation is driven by a motor.

[0029] Furthermore, the rotating mirror 4 can also be a five-sided or six-sided rotating mirror. The rotating mirror 4 is driven by a motor to rotate so that the laser scanning surface 5 is scanned.

[0030] An aperture is provided inside the scanner housing, and the aperture is located between the laser emitting unit 1 and the collimating and shaping lens 2.

[0031] After the laser emitted by the laser emitting unit 1 passes through the aperture, the elliptical laser beam becomes a beam the size of the aperture, reducing the edge fiber and preventing stray light from passing through. The laser beam after passing through the collimating and shaping lens 2 is a linear narrow beam smaller than the width of the rotating mirror 4.

[0032] Furthermore, the aperture can be any shape, such as square, rectangle, or oval, depending on the actual needs of the scanner.

[0033] The receiving surface 5, the F-theta dual-lens 3, and the rotating mirror 4 are arranged sequentially from top to bottom inside the scanner housing.

[0034] The counter lens is located at one edge of the F-theta lens.

[0035] The laser light passing through the rotating mirror 4 is first refracted by the counter lens to the counting unit for counting, and then refracted by the rotating mirror 4 to the F-theta lens, and then uniformly scanned on the receiving surface 5 by the F-theta lens.

[0036] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention. This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A lightweight optical scanning system, comprising a scanner housing, characterized in that, The scanner housing is equipped with a laser emitting unit (1), a collimating and shaping lens (2), an F-theta lens (3), a rotatable mirror (4), a receiving surface (5), and a counting unit. The laser emitted by the laser emitting unit (1) passes through the collimating and shaping lens (2), the mirror (4), and the F-theta lens (3) in sequence to the receiving surface (5) and the counting unit.

2. The lightweight optical scanning system according to claim 1, characterized in that, The collimating and shaping lens (2) includes a collimating lens and a shaping lens integrally formed, and both the collimating lens and the shaping lens are disposed inside the scanner housing. The laser passes through the collimating lens and the shaping lens in sequence, and the surface of the collimating lens is irregular.

3. The lightweight optical scanning system according to claim 1, characterized in that, The F-theta two-in-one lens (3) includes a counter lens and an F-theta lens with an integral structure. Both the counter lens and the F-theta lens are located inside the scanner housing. The laser passes through the counter lens to the counting unit for counting, and then passes through the F-theta lens to the receiving surface (5).

4. The lightweight optical scanning system according to claim 1, characterized in that, The laser emission direction of the laser emitting unit (1) is tilted downward.

5. A lightweight optical scanning system according to claim 1, characterized in that, The rotating mirror (4) is a four-sided rotating mirror and is driven to rotate by a motor.

6. A lightweight optical scanning system according to claim 1, characterized in that, An aperture is provided inside the scanner housing, and the aperture is located between the laser emitting unit (1) and the collimating and shaping lens (2).

7. A lightweight optical scanning system according to claim 1, characterized in that, The receiving surface (5), the F-theta two-in-one lens (3), and the rotating mirror (4) are arranged sequentially from top to bottom inside the scanner housing.

8. A lightweight optical scanning system according to claim 3, characterized in that, The counter lens is located at one edge of the F-theta lens.

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