KR20240003129A - Blackboard and whiteboard writing correction device using laser beam - Google Patents

Abstract

The present invention relates to a blackboard and whiteboard writing correction device using a laser beam. The problem of sentences or formulas being slanted when writing on a blackboard or whiteboard, and the problem of drawing a different image than imagined when drawing, and the device This is to improve horizontal, fixation, and movement problems when attaching. The first and second problems above are solved through the laser pointer and mode change button on the light emitting part, and the remaining problems are solved through the handle design on the body and the fixing part with appropriate magnetism. The goal is to solve the problem by attaching it to the border of the blackboard and whiteboard, and ultimately provide a writing correction device through virtual lines and grid lines at regular intervals using a laser beam. The present invention allows beginners to practice writing by checking the slant of sentences through virtual lines, while advanced users can maximize readability and space efficiency through sentences at regular intervals and easier drawing.

Description

Blackboard and whiteboard writing correction device using laser beam}

The present invention relates to a writing correction device, and more specifically, to a writing correction device that is portable and can maximize readability and space efficiency through virtual guide lines and grid lines using a laser beam when writing or drawing. It's about corrective devices.

In addition, it is about solving horizontal adjustment problems that may appear by allowing the attached device to move along the border line when necessary.

In addition, it is about solving fixation problems that may appear when attached to blackboards and whiteboards by using magnetic properties.

From the instructor's point of view, if the writing is tilted to one side, it can cause students' concentration to be divided. Additionally, if a picture is drawn during a lecture that bears little resemblance to the image in the instructor's imagination, students will have much more difficulty understanding the content. Lastly, if the entire space of the blackboard or whiteboard cannot be properly utilized due to slanted writing, students may have difficulty understanding the flow of content because they have to erase the previous content and write it again even if there is continued content. .

The present invention seeks to solve this problem when writing by using straight-line capability, which is one of the characteristics of a laser. Laser beams that can be mounted on blackboards and whiteboards will provide virtual lines and grid lines at regular intervals, maximizing readability and space efficiency. In addition, it relates to a device that solves the leveling problem by mounting on the edge and solves the mobility and fixation problems by having a fixing part using appropriate magnetism.

10-0104239, 2021. 08. 25) Laser pointer attachment device for golf swing practice 10-0071319, 2021. 06. 16) A laser pointer that allows you to check in advance where the stapler core will be inserted. 10-0137787, 2020. 12. 09) Clipboard with laser pointer attached

The present invention seeks to solve the problem of sentences or formulas being slanted to one side when writing on a blackboard or whiteboard, and the problem of drawing a picture that is different from the imagined image when drawing. By developing an attachable device using a laser beam, we are trying to solve horizontal, fixation, and movement problems in addition to the above problems.

According to an embodiment of the 'blackboard and whiteboard writing correction device using a laser beam' according to the present invention for achieving the above object, a light emitting unit composed of a laser beam for indicating virtual lines and grid lines at regular intervals; A body part including the light emitting part and consisting of a mode change button, a power button, and a battery; It consists of a fixing part that can be fixed after attaching the body to a blackboard or whiteboard, and the laser beam of the light emitting part selects lines and grid lines at regular intervals to provide the optimal line according to the situation. do. The body part has a handle-shaped design, making it convenient to move the device. In addition, it features a power button and a mode change button to minimize unnecessary power waste and provide an optimal environment suited to the user's preference. The fixing part uses an appropriate magnetic material and is characterized by being easy to move after attachment. In addition, it has a rectangular shape and is automatically horizontal when attached to the border of a blackboard or whiteboard. Based on the blackboard and whiteboard, the body part is mounted at the top and the fixing part is mounted at the bottom.

The present invention, 'Blackboard and whiteboard writing correction device using a laser beam', can check whether a sentence or formula is slanted by using a virtual line using a laser beam when writing on a blackboard or whiteboard, and can check whether a sentence or formula is tilted by using a virtual grid line. Use to make drawing easier. As a result, readability and space efficiency are maximized. In addition, through the handle design shape of the body and the rectangular shape of the fixing part, the horizontal adjustment problem is automatically solved when installed according to the border, and there is an advantage that it can be conveniently moved along it. In addition, it has the advantage of being very easy to attach and detach by using an appropriate magnetic material on the fixing part.

[Figure 1] Figure 1 is a representative diagram and is a schematic diagram showing the location of each component of the light emitting part, body part, and fixing part.
[Figure 2] Figure 2 is a cross-sectional view showing that the handle is open when looking at the invention from the front.
[Figure 3] Figure 3 is a cross-sectional view showing the light emitting unit that uses light of different wavelengths front and back, and different grid filters up and down.
[Figure 4] Figure 4 is a perspective view of a blackboard and whiteboard writing correction device using a laser beam according to an embodiment of the present invention attached to a blackboard and whiteboard.
[Figure 5] Figure 5 is a state diagram showing the operating state of the blackboard and whiteboard writing correction device using a laser beam according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with preferred embodiments with reference to the accompanying FIGS. 1 to 5. Since the embodiments expected in this specification and the configuration shown in the drawings correspond to the most preferred embodiment of the present invention, it should be considered that various methods that can replace them may exist.

Figure 1 is a representative view, a schematic diagram showing the location of each component of the light emitting part, body part, and fixing part; Figure 2 is a cross-sectional view showing that the handle part is open when looking at the invention from the front; Figure 3 is a schematic diagram showing the location of each component of the light emitting part, body part, and fixing part. A cross-sectional view showing a light emitting unit that uses light of different wavelengths at the front and back and different grid filters at the top and bottom, and Figure 4 shows a blackboard and whiteboard writing correction device using a laser beam according to an embodiment of the present invention. and a perspective view attached to a whiteboard. Figure 5 is a state diagram showing the operating state of a blackboard and whiteboard writing correction device using a laser beam according to an embodiment of the present invention.

As shown, the blackboard and whiteboard writing correction device using a laser beam according to this embodiment consists of a light emitting part, a body part, and a fixing part. The light emitting unit consists of four laser beams using a total of two wavelengths and four grating filters that can visually represent the corresponding gratings. Because it uses four grid filters, it can display a grid pattern or parallel lines at regular intervals depending on the purpose of use. In addition, since laser beams of different wavelengths are used front and back, a purple laser is used for blackboards and a green laser is used for whiteboards, so the position of the line can be clearly identified visually and eye fatigue can be minimized. The body part consists of a battery, mode change button, and power button. Therefore, use it after pressing the button for the desired mode. Additionally, the handle-shaped design makes it easy to move after attachment. Because it contains only essential components, it has the advantage of being very light, making it easy to carry and move. The fixing part is a magnetic material that has appropriate magnetism while being integrated with the corresponding body part. Since it has a rectangular shape when viewed from below, if you attach it to a blackboard or whiteboard so that it matches the bottom, you can move it along the border and it will automatically be leveled.

100: light emitting part
110: grid filter
200: body part
210: Mode change button and power button
220: battery
230: handle part
300: Fixing part with magnetic properties

Claims (9)

A light emitting part that emits a laser beam so that virtual lines can be visually confirmed,
A body portion including the corresponding light emitting portion,
A fixing part that is attached to the corresponding body and can be fixed to a blackboard or whiteboard.
Writing correction device using a laser beam including In claim 1,
Laser beams that can display virtual lines and grid patterns with equal spacing exist above and below the corresponding light emitting area, respectively.
Blackboard and whiteboard writing correction device using laser beam In claim 2,
To enable application to different surface properties of blackboards and whiteboards, laser beams using different wavelengths exist in front and behind the respective light emitting units.
Blackboard and whiteboard writing correction device using laser beam In claim 3,
Laser beams using green wavelengths (470~570nm) and purple wavelengths (390~460nm) exist in front and behind the respective light emitting parts, respectively.
Blackboard and whiteboard writing correction device using laser beam In claim 1,
There is a corresponding body part with a handle design that can be easily used when it is attached to a blackboard or whiteboard and needs to be moved.
Blackboard and whiteboard writing correction device using laser beam In claim 5,
There is a power switch on the body that can turn the laser beam on/off.
Blackboard and whiteboard writing correction device using laser beam In claim 5,
There is a mode change switch on the body that allows you to select the desired laser beam among the light emitting parts.
Blackboard and whiteboard writing correction device using laser beam In claim 5,
The existence of battery space in the body capable of supplying power to the light-emitting part of the device
Blackboard and whiteboard writing correction device using laser beam In claim 1,
The fixing part attached to the bottom of the body is made of a material with appropriate magnetic properties so that it can be easily attached and moved to a blackboard or whiteboard.
Blackboard and whiteboard writing correction device using laser beam