A read / write station

Abstract

The utility model discloses a kind of reading and writing platform, comprising: support frame, setting lifting assembly on support frame, shell being set in the output end of lifting assembly, optical amplification component being set in shell;The shell includes lower shell, and the upper shell is rotatably connected with lower shell;The support frame includes U-shaped base, and the inner cavity of U-shaped base is used to place book or intelligent terminal;Lifting mechanism is set at the inner cavity of U-shaped base, for supporting the book or intelligent terminal and vertically linear lifting;The upper end of lower shell is equipped with LED light bar, and shielding block is set in the light-emitting side of LED light bar, for inhibiting light that light bar directly irradiates to the surface of shell;The optical amplification component is composed of reflection concave mirror being set in the upper shell and polarization reflection component being set on the lower shell.

Description

Technical Field

[0001] This utility model relates to the field of reading and writing station technology, and in particular to a reading and writing station. Background Technology

[0002] With the integration of paper reading and electronic screen writing / annotation, desktop reading and writing devices need to simultaneously meet the following requirements within a limited space: suppressing glare and ghosting due to secondary reflections in complex lighting environments, maintaining high contrast and clarity, and accommodating the ergonomic needs of different heights and sitting / standing postures. Traditional direct lighting or simple light-shielding structures often struggle to achieve these goals simultaneously.

[0003] To improve the viewing experience, some solutions introduce refracted light paths and polarization management. For example, the Chinese utility model application filed by the applicant, patent number 201921540617.7, discloses a transparent AR screen that prevents stray light. This transparent AR display device consists of a display screen, a semi-reflective lens, a waveplate (quarter-wave plate), a concave mirror, and a polarizer. The display light is refracted sequentially through the semi-reflective lens, the waveplate, and the concave mirror, and then the magnified image is reflected by the semi-reflective lens to the direction of the polarizer for the viewer to observe. The quarter-wave plate is used to convert between linear and circular polarization to coordinate with reflection and polarization selection, thereby reducing stray light interference and improving the visual effect. This technical approach and the polarization-phase coordination concept are representative.

[0004] However, for applications involving "desktop reading and writing / close-range fine observation," the aforementioned AR architecture centered on "semi-reflective mirrors + multiple polarizing elements" still has room for optimization in terms of light utilization, environmental adaptability, and overall system integration. For example, in environments with strong top lighting or side windows, the inherent bidirectional transmission / reflection of the semi-reflective mirror can lead to residual bright spots and contrast fluctuations. Regarding posture and viewing distance adaptation, it lacks multi-degree-of-freedom coordinated angle adjustment with the desktop support / cover structure. Furthermore, in terms of field-of-view boundary management and storage integration, it does not provide an integrated mechanism for "mirror / frame edge entry" and "closing the cover to turn off the lights, energy saving and safety." These issues are even more pronounced in real-world scenarios where desktop reading and writing are shared with paper screens. A comprehensive solution is still needed to achieve polarization-phase management, folding magnification, aperture / boundary control, and overall system integration within the desktop scale to obtain a high-contrast, low-glare, clean field of view while also considering ergonomics.

[0005] In addition, the applicant's Chinese utility model patent application, application number 2025220657325, describes a reader / writer head that, during use, easily produces hand shadows when writing in the reading / writing area, causing inconvenience for the user. Therefore, the applicant has made further improvements. Utility Model Content

[0006] In view of the problems existing in the prior art, this utility model provides a reader / writer.

[0007] To achieve the above objectives, this utility model provides a reading and writing station, comprising: a support frame, a lifting assembly disposed on the support frame, a housing disposed at the output end of the lifting assembly, and an optical magnification assembly disposed within the housing; The housing includes a lower housing and an upper housing rotatably connected to the lower housing; The support frame includes a U-shaped base, the inner cavity of which is used to place books or smart terminals; The U-shaped base has a lifting mechanism in its inner cavity to support the book or smart terminal and move it vertically. The upper end of the lower shell is provided with an LED light strip, and a blocking block is provided on the light-emitting side of the LED light strip to suppress the light from the LED light strip shining directly onto the surface of the lower shell. The optical magnification assembly consists of a concave mirror disposed inside the upper shell and a polarizing reflection assembly disposed on the lower shell; The polarization reflection assembly is rotatably connected to the lower shell. The polarization reflection assembly includes a frame for mounting and an optical laminate fixed within the frame. The optical laminate includes a first transparent substrate, a reflective polarizer, a quarter-wave plate, and a second transparent substrate, or a third transparent substrate, a second quarter-wave plate, a second reflective polarizer, a third quarter-wave plate, and a fourth transparent substrate, arranged sequentially within the frame. The upper shell is also provided with a slidable baffle. The baffle is disposed relative to the concave mirror and moves along the guide portion of the upper shell to shield the edge area of ​​the concave mirror during reflection to prevent the edge of the frame from being exposed in the user's field of vision. The top of the frame is also equipped with a light shield to block the light from the LED strip from leaking toward the observer through the gap between the housing and the frame.

[0008] Preferably, the lower shell, frame, and upper shell are all provided with magnetic attraction components, so that when the shell is closed, the lower shell, frame, and upper shell are magnetically aligned and attracted together; the magnetic attraction component is a first magnet.

[0009] Preferably, a light strip facing the lower shell is provided on the bottom side of the frame; a magnetic sensor is provided on the lower shell and a magnet is provided on the frame opposite to it. When the upper shell and the lower shell are closed, the magnetic sensor outputs a signal to the control motherboard inside the lower shell to control the light strip to turn off.

[0010] Preferably, the lower end of the lower shell is also equipped with a power off button, an up button and a down button, a power on button, a display screen, and multiple light adjustment buttons; the power off button, the up button and the down button, and the power on button are arranged sequentially on one side of the lower end of the lower shell, the display screen is arranged in the middle of the lower end of the lower shell, and the multiple light adjustment buttons are arranged on the other side of the lower shell. The corresponding terminals of the control motherboard are electrically connected to the power off button, the up button and the down button, the power on button, the display screen, multiple light adjustment buttons, and the corresponding terminals of the lifting assembly.

[0011] Preferably, the support frame further includes a support sleeve connected to the U-shaped base; the bottom of the U-shaped base is also provided with anti-slip pads.

[0012] The incident angle α of the central optical axis of the LED light strip relative to the bottom surface of the U-shaped base is 5° to 25°; the shielding block extends along the length of the LED light strip to limit stray light directly hitting the lower shell surface and the observer's direction.

[0013] Preferably, the lifting assembly includes a drive motor and a worm gear connected to the output end of the drive motor; one end of the worm gear is placed inside the support sleeve, and the other end is fixed to the lower shell. The lower shell is also provided with a sleeve, which is fitted onto the support sleeve and can slide up and down along the support sleeve when driven by the drive motor.

[0014] Preferably, the lower shell is provided with fixing grooves at the four corners for placing magnets to fix the sheet suspended on the lower shell.

[0015] Preferably, the polarizing reflective component rotates along the lower shell at an angle ranging from 0 to 60°; the upper shell rotates along the lower shell at an angle ranging from 0 to 105°.

[0016] Preferably, the reflecting concave mirror is a spherical or aspherical concave mirror, and its radius of curvature ranges from 800mm to 15000mm.

[0017] Preferably, a hinge is provided at the connection between the lower shell and the upper shell, and the lower shell is rotatably connected to the upper shell through the hinge. The hinge includes a rotating shaft, two nuts provided on the threaded section at the end of the rotating shaft for adjusting the tightness, two fixed blocks and two movable ears provided on the rotating shaft; each of the fixed blocks has a recess on its inner side, and correspondingly, each movable ear has a protrusion that matches the recess; the two movable ears are respectively fixedly connected to the upper shell and the lower shell.

[0018] Preferably, the guide portion of the upper shell includes multiple side-by-side waist-shaped slots or elongated slots, and the baffle is mounted on the waist-shaped slots by screws and can slide along the waist-shaped slots or elongated slots.

[0019] The technical solution of this utility model has the following beneficial effects: This invention features a concave mirror housed within the upper shell and facing the lower shell, arranged opposite to the polarization and reflection assembly on the lower shell. This creates a reflected light path within a limited height, effectively lengthening the viewing distance and achieving gentle magnification. Simultaneously, it geometrically separates the imaging path from the primary specular reflection, improving contrast and viewing comfort. Through the adjacent stacking and polarization axis alignment of a reflective polarizer and a quarter-wave plate, combined with the concave mirror forming the reflected light path, polarization selection and phase compensation are performed on the primary and secondary reflections, significantly reducing ghosting and glare, and improving contrast and detail clarity in the observation area.

[0020] The polarization reflection component of this invention can rotate within a range of 0 to 60° relative to the lower shell, and the upper shell can rotate within a range of 0 to 105° relative to the lower shell. The height can be adjusted in conjunction with the lifting mechanism to match the light path with the viewer's eye position, sitting / standing posture and the direction of ambient light, thereby reducing neck flexion and postural fatigue.

[0021] This invention features a guide section on the upper shell, with a linearly sliding baffle installed inside. This baffle can variablely shield the edge diameter of the concave mirror, preventing the frame edge from entering the field of view and suppressing edge aberrations and stray light, resulting in a cleaner field of view boundary, making the image more coherent and the field of view cleaner.

[0022] The lower shell, frame, and upper shell of this utility model are each equipped with magnetic components. When closed, the three are magnetically connected, achieving self-alignment and stable positioning, reducing the risk of loosening due to vibration, and improving the consistency of opening and closing and carrying safety.

[0023] The light strip on the bottom side of the frame of this utility model provides uniform lighting for the area in use; when the cover is closed, the magnetic sensor detects the magnet on the frame and drives the control board to turn off the light strip, avoiding light leakage and ineffective heat generation in the closed state, thus improving safety and energy efficiency.

[0024] This invention features a magnetic sensor installed in the lower shell and a corresponding magnet installed in the frame, which is connected to the control motherboard. When the shell is closed, the structural position directly triggers the power-off of the light strip, preventing light leakage and heat generation within the closed cavity, thus providing energy-saving and safety benefits.

[0025] This utility model provides a stable placement area for books / smart terminals with its U-shaped base and anti-slip pads. The anti-slip support enhances the overall anti-slip capability and reduces the impact of positional drift caused by operation on the optical path.

[0026] This invention features a shielding block on the light-emitting side of the LED strip to suppress light directly shining from the strip onto the surface of the housing; it also reduces stray light and bright spots reflected back to the read / write area from the housing, thereby improving the contrast and uniformity of the paper or screen.

[0027] The central optical axis of the LED light strip of this utility model has an incident angle α of 5° to 25° relative to the bottom surface of the U-shaped base, so that the light emitted by the LED light strip covers the reading and writing area in a slanted incident manner, thereby weakening the hard shadow caused by the hand blocking, achieving the effect of no hand shadow, and improving the readability and stability of the writing and reading area. This invention also includes a light-shielding plate at the top of the frame to block the light from the LED strip from leaking towards the observer through the gap between the housing and the frame. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of the present utility model. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the present utility model. Figure 2 ; Figure 3 This is a schematic diagram of the structure of the present utility model. Figure 3 ; Figure 4 This is a schematic diagram of the installation of the LED lamp body of this utility model. Figure 1 ; Figure 5 This is a schematic diagram of the installation of the LED lamp body of this utility model. Figure 2 ; Figure 6 This is a schematic diagram of the lifting assembly of this utility model; Figure 7 This is a schematic diagram of the upper shell of this utility model; Figure 8 This is a schematic diagram of the structure of the polarization reflection component of this utility model. Figure 1 ; Figure 9 This is a schematic diagram of the structure of the polarization reflection component of this utility model. Figure 2 ; Figure 10 This is a schematic diagram of the installation of the hinge component of this utility model; Figure 11 This is a schematic diagram of the hinge structure of this utility model. Figure 1 ; Figure 12 This is a schematic diagram of the hinge structure of this utility model. Figure 2 . Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] Reference Figures 1 to 7 The present invention provides a reading and writing station, comprising: a support frame 1, a lifting assembly 7 disposed on the support frame 1, a housing 2 disposed at the output end of the lifting assembly 7, and an optical magnification assembly disposed within the housing 2; The housing 2 includes a lower housing 21 and an upper housing 22 rotatably connected to the lower housing 21. The upper housing 22 rotates within the range of 0–105° around the lower housing 21. Combined with the concave mirror 4 and baffle 20 inside the upper housing 22, a controllable light-shielding angle can be formed at different opening angles to shield direct glare and stray light from the overhead light / side window, improving the viewing experience on paper and screen. The angle change of the upper housing 22 can also change the effective reflection angle and field of view of the concave mirror 4. In conjunction with the polarization reflection component on the forward tilting surface of the lower housing 21, it can adapt to different heights, sitting / standing postures, and eye-to-table distances, reducing the burden on neck tilt and eye adjustment.

[0035] The support frame 1 includes a U-shaped base, and the inner cavity of the U-shaped base 11 is used to place books or smart terminals. The U-shaped base 101 has a lifting mechanism (not shown) inside its cavity to support the book or smart terminal and move it vertically. The upper end of the lower shell 21 is provided with an LED light strip 40, and a blocking block 50 is provided on the light-emitting side of the LED light strip 40 to suppress the light from the LED light strip 40 shining directly onto the surface of the lower shell 21. This reduces stray light / bright spots reflected back to the reading and writing area from the shell, and improves the contrast and uniformity of the paper or screen.

[0036] The incident angle α of the central optical axis of the LED light strip 40 relative to the bottom surface of the U-shaped base 101 is 5° to 25°, so that the light emitted by the LED light strip 40 covers the reading / writing area in an oblique incident manner, thereby weakening the hard shadow caused by hand obstruction, achieving the effect of no hand shadow, and improving the readability and stability of the writing and reading area. The top of the frame 31 is also provided with a light shield (not shown) to block the light from the LED light strip 40 from leaking toward the observer through the gap between the housing and the frame 31.

[0037] The shielding block 50 extends along the length of the LED light strip 40 to limit stray light directly hitting the surface of the lower shell 21 and the direction of the observer.

[0038] The optical magnification component consists of a concave mirror 4 disposed in the upper shell 22 and a polarizing reflection component 3 disposed on the lower shell 21, forming a relative folding and reflecting optical path. This effectively lengthens the observation path, allowing the observed object to be magnified gently and at a more comfortable viewing distance, improving detail recognition and long-term viewing comfort. The concave mirror is a spherical or aspherical concave mirror with a radius of curvature ranging from 800mm to 15000mm. The polarization reflection component 3 is rotatably connected to the lower shell 21, and the polarization reflection component 3 rotates along the lower shell 21 at an angle range of 0 to 60°. The polarization reflection component 3 and the lower shell 21 are hinged together by a hinge. The polarization reflection component 3 is adjustable relative to the lower shell 21 within the range of 0 to 60°, so that the incident angle of the reflected light path matches the user's line of sight under different heights, sitting / standing postures, and eye-to-table distances, thereby reducing excessive neck tilting and eye adjustment burden.

[0039] The polarization reflection assembly 3 includes a frame 31 for mounting and an optical laminate fixed within the frame 31. The optical laminate includes a first transparent substrate 311, a reflective polarizer 312, a quarter-wave plate 313, and a second transparent substrate 314, or a third transparent substrate 333, a second quarter-wave plate 444, a second reflective polarizer 555, a third quarter-wave plate 666, and a fourth transparent substrate 777, arranged sequentially along the incident direction within the frame 31. The first transparent substrate 311 and the second transparent substrate 314, the third transparent substrate 333 and the fourth transparent substrate 777 are made of glass or transparent polymer material. The upper shell 22 is also provided with a sliding baffle 20. The baffle 20 is disposed relative to the concave mirror 4 and moves along the guide portion 221 of the upper shell 22. It is used to shield the edge area of ​​the concave mirror 4 during reflection to prevent the edge of the frame 31 from being exposed in the user's field of vision.

[0040] Furthermore, in this embodiment, the lifting mechanism is configured as a lifting platform (not shown), used to drive the book or smart terminal to move vertically in a straight line. Under the reflected light path formed by the concave mirror 4 and the polarizing reflection component 3, the geometric distance change caused by the lifting platform is converted into a continuous change in the equivalent viewing distance, allowing the image to transition from far to near or from near to far. The upper shell 22 and the polarizing reflection component 3 can be positioned and adjusted within their angular range to maintain the effective reflection angle and observation incident angle of the reflected light path during the lifting process; the baffle 20 slides along the guide portion 221 to shield edge glare. Thus, under stable imaging conditions, the eye accommodation load changes with the equivalent viewing distance, thereby achieving near and far vision accommodation training.

[0041] Furthermore, the lower shell 21, frame 31, and upper shell 22 are all provided with magnetic suction components 5, so that when the shell is closed, the lower shell 21, frame 31, and upper shell 22 are magnetically aligned and connected to prevent the reading and writing table from loosening when closed. At the same time, the magnetic connection also makes it convenient to operate when open; the magnetic suction component 5 is set as the first magnet.

[0042] Furthermore, a light strip 10 facing the lower shell 21 is provided on the bottom side of the frame 31, which can serve as an independent auxiliary light source to supplement the core observation area of ​​the reading and writing station (the placement area of ​​the lower shell 21 and the U-shaped base 101), so that the text on the book and the content on the screen remain clear after optical magnification, meeting the user's reading, writing, or screen viewing needs in various environments; a magnetic sensor 30 is provided on the lower shell 21 and a magnet (not shown) is provided on the frame 31 to counteract it. When the upper shell 22 and the lower shell 21 are closed, the magnetic sensor 30 outputs a signal to the control motherboard inside the lower shell 21 to control the light strip 10 to turn off. This process does not require the user to manually operate the power off button 11, which can effectively avoid the waste of power caused by forgetting to turn off the light strip, and at the same time reduce the ineffective working time of the light strip and extend its service life; the magnetic sensor can be a Hall sensor.

[0043] Furthermore, the lower end of the lower shell 21 is also equipped with a power off button 11, an up button and a down button 12, a power on button 13, a display screen 14, and multiple light adjustment buttons 15; the power off button 11, the up button and the down button 12, and the power on button 13 are arranged sequentially on one side of the lower end of the lower shell 21, the display screen 14 is arranged in the middle of the lower end of the lower shell 21, and the multiple light adjustment buttons 15 are arranged on the other side of the lower shell 21; the corresponding terminals of the control motherboard are electrically connected to the corresponding terminals of the power off button 11, the up button and the down button 12, the power on button 13, the display screen 14, the multiple light adjustment buttons 15, and the lifting assembly 7.

[0044] In this embodiment, when the user presses the power button 13, the control motherboard receives a signal and connects the power supply circuits for the lifting assembly, light strip 10, and display screen 14, ensuring that each component enters a responsive state (e.g., the hydraulic rod can receive lifting signals, and the light strip can receive brightness adjustment signals). The up and down buttons 12 are used for precise adjustment of the lifting assembly. By transmitting up or down signals to the control motherboard, they drive the hydraulic rod to extend or retract, thereby raising or lowering the reading / writing station, achieving personalized height adaptation to accommodate different heights and usage postures. Multiple light adjustment buttons 15 include a dimming light, a reading mode light, a writing mode light, and a red light. The dimming light allows for brightness adjustment to adapt to different ambient light intensities. The reading mode light button activates a dedicated lighting mode adapted for reading paper books / electronic screens. By controlling preset parameters (brightness, color temperature, and illumination range) on the motherboard, it provides a uniform and soft directional light source for the reading scenario, working in conjunction with the optical magnification assembly. Writing Mode Button: Activates the lighting mode adapted to writing actions. It adjusts the light angle of the light strip 10 via the control motherboard, preventing hand shadows from obscuring the paper while ensuring clarity between the pen tip and the paper, thus meeting visual needs during writing. Red Light Button: Controls the output of red light from the light strip 10, activating a lighting mode adapted to specific needs. Utilizing the characteristics of red light (low stimulation, high visibility), it meets usage requirements in specific scenarios. For nighttime use (such as reading before bed), pressing the button activates the red light. The wavelength range of the red light is 600nm-700nm. Red light is far less stimulating to the eyes than white / warm light, reducing the impact of light on melatonin secretion and making it easier to fall asleep after nighttime use. At the same time, the red light still ensures basic visibility of the book / screen content, meeting the need for "light nighttime reading without affecting sleep."

[0045] Furthermore, the support frame 1 includes a support sleeve 102 connected to the U-shaped base 101; the bottom of the U-shaped base 101 is also provided with anti-slip pads, which can stabilize it on the table and improve safety performance; the smart terminal is set as an iPad or a mobile phone.

[0046] Furthermore, the lifting assembly 7 includes a drive motor 701 and a worm gear 702 connected to the output end of the drive motor 701. One end of the worm gear 702 is placed inside the support sleeve 102, and the other end is fixed to the lower shell 21. The lower shell 21 is also provided with a sleeve 703, which is sleeved on the support sleeve 102 and can slide up and down along the support sleeve 102 when driven by the drive motor 701. In this embodiment, the working principle of the lifting assembly 7 is as follows: the drive motor 701 drives the worm gear 72 to move up and down, thereby causing the shell to slide up and down along the support sleeve 102, so as to accurately adapt to different user heights. In this embodiment, the shells of the worm gear 702 and the drive motor 701 are both made of plastic, which can reduce noise during operation.

[0047] Furthermore, a hinge 90 is provided at the connection between the lower shell 21 and the upper shell 22. The lower shell 21 is rotatably connected to the upper shell 22 via the hinge 90. The hinge 90 includes a rotating shaft, two nuts 903 disposed on the threaded section at the end of the rotating shaft for adjusting tightness, two fixed blocks 902 disposed on the rotating shaft, and two movable ears 901. Each fixed block 902 has a recess 902a on its inner side, and correspondingly, each movable ear 901 has a protrusion adapted to the recess 902. The two movable ears 901 are fixedly connected to the upper shell 22 and the lower shell 21, respectively. The hinge 90 of this embodiment is more stable than traditional damping components and will not loosen when the upper shell 22 and the lower shell 21 are opened and held at 90°.

[0048] Furthermore, the lower shell 21 is provided with fixing grooves 6 at its four corners for placing magnets to fix the sheet material suspended on the lower shell 21, or the velvet cloth suspended on the lower shell 21. By embedding magnets in the fixing grooves 6, a four-point magnetic fixing area is formed. The magnetic adsorption characteristics are used to provide non-contact fixing for lightweight parts such as sheets and velvet cloth, replacing traditional fixing methods such as buckles and adhesives.

[0049] Furthermore, the guide portion 221 of the upper shell 22 includes multiple side-by-side waist-shaped slots or elongated slots. The baffle 20 is mounted on the waist-shaped slot by screws 222 and can slide along the waist-shaped slot or elongated slot. The sliding direction is strictly limited to the length direction of the waist-shaped slot or elongated slot to avoid deviation, jamming or tilting when the baffle slides, and to ensure that the baffle 20 always moves along the edge area of ​​the concave mirror 4 to accurately cover the target shielding area.

[0050] The working principle of this utility model is as follows: When the object of observation (a book or a smart terminal) is placed within the U-shaped area of ​​the U-shaped base 101, light from its surface first passes through the first transparent substrate 311 and enters the polarization reflection assembly 3, and then passes through... The reflective polarizer 312 converts the light into linearly polarized light with the same polarization direction as the reflective polarizer 312. The linearly polarized light continues to pass through the quarter-wave plate 313 and becomes circularly polarized light. Finally, the circularly polarized light is further reflected by the concave mirror 4 and the image is magnified. At the same time, the circularly polarized light after reflection has the opposite rotation direction to the circularly polarized light before reflection. This is the physical characteristic of circularly polarized light. After being reflected by the concave mirror 4, the circularly polarized light passes through the quarter-wave plate 313 again. At this time, the light light changes from circularly polarized light to linearly polarized light again. Then, the light light is selectively reflected by the reflective polarizer 312 and enters the viewer's eye to form an image. The viewer sees a magnified image.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A reading and writing station, characterized in that, include: Support frame, lifting assembly mounted on the support frame, housing mounted at the output end of the lifting assembly, and optical magnification assembly mounted inside the housing; The housing includes a lower housing and an upper housing rotatably connected to the lower housing; The support frame includes a U-shaped base, the inner cavity of which is used to place books or smart terminals; A lifting mechanism is provided in the inner cavity of the U-shaped base to support the book or smart terminal and move it vertically. An LED light strip is provided at the upper end of the lower shell, and a blocking block is provided on the light-emitting side of the LED light strip to suppress the light from the LED light strip directly hitting the surface of the lower shell. The incident angle α of the central optical axis of the LED light strip relative to the bottom surface of the U-shaped base is 5° to 25°. The optical magnification assembly consists of a concave mirror disposed inside the upper shell and a polarizing reflection assembly disposed on the lower shell; The polarization reflection assembly is rotatably connected to the lower shell. The polarization reflection assembly includes a frame for mounting and an optical laminate fixed within the frame. The optical laminate includes a first transparent substrate, a reflective polarizer, a quarter-wave plate, and a second transparent substrate, or a third transparent substrate, a second quarter-wave plate, a second reflective polarizer, a third quarter-wave plate, and a fourth transparent substrate, arranged sequentially within the frame. The upper shell is also provided with a slidable baffle. The baffle is disposed relative to the concave mirror and moves along the guide portion of the upper shell to shield the edge area of ​​the concave mirror during reflection to prevent the edge of the frame from being exposed in the user's field of vision. The top of the frame is also equipped with a light shield to block the light from the LED strip from leaking toward the observer through the gap between the housing and the frame.

2. The reader / writer according to claim 1, characterized in that, The lower shell, frame, and upper shell are all equipped with magnetic components, so that when the shell is closed, the lower shell, frame, and upper shell are magnetically aligned and connected.

3. The reader / writer according to claim 2, characterized in that, The bottom side of the frame is provided with a light strip facing the lower shell; a magnetic sensor is provided on the lower shell and a magnet is provided on the frame opposite to it. When the upper shell and the lower shell are closed, the magnetic sensor outputs a signal to the control board inside the lower shell to control the light strip to turn off.

4. The reader / writer according to claim 3, characterized in that, The lower end of the lower shell is also equipped with a power off button, an up button and a down button, a power on button, a display screen, and multiple light adjustment buttons; the power off button, the up button and the down button, and the power on button are arranged sequentially on one side of the lower end of the lower shell, the display screen is arranged in the middle of the lower end of the lower shell, and the multiple light adjustment buttons are arranged on the other side of the lower shell. The corresponding terminals of the control motherboard are electrically connected to the power off button, the up button and the down button, the power on button, the display screen, multiple light adjustment buttons, and the corresponding terminals of the lifting assembly.

5. The reader / writer according to claim 1, characterized in that, The support frame also includes a support sleeve connected to the U-shaped base; the bottom of the U-shaped base is also provided with anti-slip pads; The shielding block extends along the length of the LED strip to limit stray light directly hitting the lower shell surface and the observer's direction.

6. The reader / writer according to claim 1, characterized in that, The lifting assembly includes a setting The drive motor and the worm gear connected to the output end of the drive motor; one end of the worm gear is placed inside the support sleeve, and the other end is fixed on the lower shell. The lower shell is also provided with a sleeve, which is fitted on the support sleeve and can slide up and down along the support sleeve when driven by the drive motor.

7. The reader / writer according to claim 6, characterized in that, The lower shell also has corresponding fixing grooves at its four corners for placing magnets to fix the sheet material suspended on the lower shell.

8. The reader / writer according to claim 7, characterized in that, The polarizing reflective component rotates along the lower shell at an angle ranging from 0 to 60°; the upper shell rotates along the lower shell at an angle ranging from 0 to 105°; the reflecting concave mirror is a spherical or aspherical concave mirror, and its radius of curvature ranges from 800 mm to 15000 mm.

9. The reader / writer according to claim 7, characterized in that, A hinge is provided at the connection between the lower shell and the upper shell. The lower shell is rotatably connected to the upper shell through the hinge. The hinge includes a rotating shaft, two nuts provided on the threaded section at the end of the rotating shaft for adjusting the tightness, two fixed blocks and two movable ears provided on the rotating shaft. Each fixed block has a recess on its inner side, and correspondingly, each movable ear has a protrusion that matches the recess. The two movable ears are fixedly connected to the upper shell and the lower shell respectively.

10. The reader / writer according to claim 1, characterized in that, The guide portion of the upper shell includes multiple side-by-side waist-shaped or elongated slots. The baffle is mounted on the waist-shaped slot by screws and can slide along the waist-shaped or elongated slot.

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