Laser pen

Abstract

The utility model relates to the technical field of laser pens, and discloses a laser pen which comprises an inner shell, a laser head is fixedly installed in the inner shell, and an outlet for laser to penetrate out is formed in the head position of the inner shell. A mounting shell, a circuit board and a condensing lens are arranged in the laser head; two laser chips with different light emitting colors are fixedly mounted in the mounting shell; the two laser chips are both connected with the circuit board, and the two laser chips are located on one side of the circuit board and arranged back to back. The inner shell is sleeved with an outer shell made of memory metal. The shell made of memory metal is arranged on the laser pen, when the laser pen is used, the temperature of the palm of a human body is transmitted to the shell, and the shell expands, so that the size of the laser pen is enlarged, and a user can grasp the laser pen conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of laser pens, in particular to a laser pen. Background Art

[0002] A laser pointer, also known as a laser pointer or star pointer, is a small handheld device that uses a laser as a light source, usually used to indicate or point to objects at a distance.

[0003] In the prior art, since most laser pens are in the shape of thin strips and are small in size, it is inconvenient for users to hold them when using them. Therefore, it is necessary to use a laser pen to solve the above problem. Utility Model Content

[0004] The purpose of the present utility model is to provide a laser pointer to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a laser pointer comprising an inner shell, a laser head fixedly mounted within the inner shell, an outlet for laser light to pass through being provided at the head of the inner shell; a mounting shell, a circuit board, and a focusing lens are arranged within the laser head; two laser chips emitting light of different colors are fixedly mounted within the mounting shell; both laser chips are connected to the circuit board, the two laser chips are located on one side of the circuit board and are arranged back to back; an outer shell made of memory metal is sleeved over the inner shell.

[0006] Preferably, the mounting shell and the head of the laser head are both provided with through-holes, and the through-holes and the exits are arranged accordingly; the light emitted by the two laser chips is directed toward the through-holes on the mounting shell, and the light beams generated by the two laser chips are respectively irradiated on the focusing lens and form two focused laser irradiation lines; the through-holes on the laser head are for the two focused laser irradiation lines to pass through.

[0007] Preferably, a spring is provided in the laser head, one end of the spring abuts against the mounting shell, and the other end abuts against the focusing lens; the focusing lens abuts against the end of the laser head with a through hole.

[0008] Preferably, a battery is installed in the inner shell, and the positive and negative poles of the battery are each electrically connected to a power supply terminal on the circuit board.

[0009] Preferably, a switch button is installed on the inner shell; and a connection terminal of the switch button is connected to a circuit board.

[0010] Preferably, it also includes a base for placing the laser pen; a placement slot matching the laser pen is provided on the base, and two limit plates are fixedly installed in the placement slot; a mounting block is provided at the tail position of the inner shell, and two card slots are provided on the mounting block; the two limit plates correspond to the two card slots one by one, and each limit plate is engaged and limited with the corresponding card slot.

[0011] Preferably, the housing is fixedly connected to the mounting block.

[0012] Technical effects and advantages of this utility model:

[0013] First, the utility model is provided with a shell made of memory metal. When in use, the temperature of the palm of the human body is transferred to the shell, and the shell expands, thereby increasing the volume of the laser pen and making it easier for the user to grasp.

[0014] Second, the utility model can emit two colors of laser, has many applicable scenes, a wide range of applications, and strong practicality.

[0015] Third, the present invention can limit the position of the laser pen after being placed in the groove of the base to prevent the laser pen from being bumped; at the same time, when the laser pen is not in use, the shell shrinks and the volume of the laser pen is reduced for easy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional assembly diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0019] Figure 4 For this utility model Figure 3 A magnified schematic diagram of .

[0020] In the figure: 1. Base; 2. Placement slot; 3. Limit plate; 4. Mounting block; 5. Card slot; 6. Outer shell; 7. Grip slot; 8. Switch button; 9. Laser head; 10. Inner shell; 11. Battery; 12. Circuit board; 13. Laser chip; 14. Focusing lens; 15. Mounting shell. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] Example 1: The utility model provides Figures 1 to 4The laser pointer shown includes an inner shell 10. The inner shell 10 is cylindrical and has an outlet at the head of the inner shell 10. A laser head 9 is fixedly mounted at the outlet of the inner shell 10, and laser light emitted by the laser head 9 passes through the outlet.

[0023] The laser head 9 is equipped with a circuit board 12 , a mounting shell 15 and a focusing lens 14 .

[0024] The circuit board 12 is fixedly connected to the laser head 9, and the mounting shell 15 is slidably connected to the laser head 9. Two laser chips 13 are fixedly clamped in the mounting shell 15, and the two laser chips 13 are electrically connected to the circuit board 12. At the same time, the two laser chips 13 are located on one side of the circuit board 12 and are symmetrically arranged back to back.

[0025] Mounting housing 15 and the top portion of laser head 9 each have a perforation, corresponding to the two perforations and the exit of inner housing 10. The two laser chips 13 emit light of different colors and both point toward the perforation in mounting housing 15. The beams emitted by the two laser chips 13 are green and red, respectively.

[0026] The laser head 9 is equipped with a spring, which is located between the mounting shell 15 and the condenser lens 14. One end of the spring abuts against the mounting shell 15, and the other end abuts against the condenser lens 14. The condenser lens 14 abuts against the end of the laser head 9 with a perforation.

[0027] The light beams emitted by the two laser chips 13 pass through the through hole on the mounting shell 15 and are focused by the condenser lens 14 to form two focused laser irradiation lines. The two focused laser irradiation lines pass through the through hole on the laser head 9 along the central axis.

[0028] A battery 11 is fixedly mounted in the inner shell 10 . The positive and negative electrodes of the battery 11 are each electrically connected to a power supply terminal of the circuit board 12 .

[0029] The switch button 8 is installed on the inner shell 10. The terminal of the switch button 8 is connected to the circuit board 12 through a wire to control the conduction of the circuit board 12.

[0030] The operating principle of Example 1: When using the laser pointer, pressing the switch button 8 activates the circuit board 12, and the battery 11 supplies power to the two laser chips 13 through the circuit board 12. The two laser chips 13 then emit beams of different colors. These beams first pass through a perforation in the mounting housing 15, are then focused by the condenser lens 14 to form two laser beams of different colors. The two laser beams then pass through a perforation in the laser head 9 and exit the laser head 9.

[0031] The last two laser beams pass through the exit of the inner shell 10 .

[0032] During use, the user first presses the switch button 8, causing the laser head 9 to emit red laser light. Pressing the switch button 8 a second time causes the laser head 9 to emit green laser light. Pressing the switch button 8 a third time turns the laser head 9 off. This process is repeated, switching the laser light color to suit different usage scenarios, such as teaching and indicating constellations. This control process is implemented by the control circuit on the circuit board 12 and is conventional technology, so it will not be described in detail here.

[0033] Embodiment 2: This embodiment is a further optimization of embodiment 1. The tail of the inner shell 10 is threadedly connected to the mounting block 4 , and the mounting block 4 is fixedly connected to the outer shell 6 . The outer shell 6 is made of memory metal and is sleeved on the inner shell 10 .

[0034] The housing 6 is located between the switch button 8 and the mounting block 4 , and the housing 6 and the switch button 8 are always out of contact.

[0035] Working principle of the second embodiment: When using the laser pen, the user holds the shell 6, and the temperature of the user's palm is transferred to the shell 6, which increases the temperature of the shell 6 and expands. At this time, the state of the laser pen is as follows: Figure 2 and Figure 3 As shown, a gripping groove 7 is formed on the housing 6 and matches the thumb of a human body, making it convenient to hold.

[0036] Then press the switch button 8, and the laser head 9 emits two lasers of different colors.

[0037] When the laser pen is placed on a table, the housing 6 is no longer heated and the temperature drops. At this time, the housing 6 shrinks and recovers, and the volume of the laser pen is reduced, making it easier to store.

[0038] Example 3: This example is a further improvement of Example 2. The laser pen is placed on a base 1 for storage. The base 1 is provided with a placement slot 2 that matches the laser pen, and the laser pen is placed in the placement slot 2.

[0039] Two symmetrically positioned limit plates 3 are fixedly mounted within the placement slot 2, with the mounting block 4 positioned between them. Two slots 5 are cut into the mounting block 4, corresponding one to each of the limit plates 3. Each limit plate 3 is inserted into a corresponding slot 5, and each limit plate 3 engages and locks with the corresponding slot 5, preventing the laser pointer from moving horizontally.

[0040] A layer of sponge pad is laid at the bottom of the placement slot 2, and the laser pen is placed on the sponge pad to ensure that the laser pen does not have a strong collision and prevent the electrical components in the laser pen from being damaged by vibration.

[0041] Working Principle of Example 3: When not in use, the laser pointer is placed in slot 2 of base 1. During this placement, the slots 5 on mounting block 4 align with the corresponding stop plates 3. When the laser pointer is lowered, the two stop plates 3 slide through their corresponding slots 5 and form a stop engagement with them.

[0042] When using the laser pen, just take it out from the placement slot 2. In this process, hold the head of the laser pen by hand to facilitate taking it out from the placement slot 2.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A laser pointer, comprising an inner shell (10), characterized in that: A laser head (9) is fixedly installed in the inner shell (10), and an outlet for laser light to pass through is provided at the head position of the inner shell (10); a mounting shell (15), a circuit board (12) and a focusing lens (14) are arranged in the laser head (9); two laser chips (13) with different luminous colors are fixedly installed in the mounting shell (15); the two laser chips (13) are both connected to the circuit board (12), and the two laser chips (13) are located on one side of the circuit board (12) and are arranged back to back; an outer shell (6) made of memory metal is sleeved on the inner shell (10).

2. The laser pointer according to claim 1, wherein: The mounting shell (15) and the head of the laser head (9) are both provided with perforations, and the perforations and the outlets are arranged accordingly; the light emitted by the two laser chips (13) is directed toward the perforations on the mounting shell (15); the light beams generated by the two laser chips (13) are respectively irradiated onto the condensing lens (14) and form two focused laser irradiation lines; the perforations on the laser head (9) are used for the two focused laser irradiation lines to pass through.

3. The laser pointer according to claim 2, characterized in that: A spring is provided in the laser head (9), one end of the spring abuts against the mounting shell (15), and the other end abuts against the focusing lens (14); the focusing lens (14) abuts against the end of the laser head (9) with a perforation.

4. The laser pointer according to claim 1, wherein: A battery (11) is installed in the inner shell (10), and the positive and negative electrodes of the battery (11) are each electrically connected to a power supply terminal on the circuit board (12).

5. The laser pointer according to claim 4, characterized in that: A switch button (8) is installed on the inner shell (10); a connection terminal of the switch button (8) is connected to a circuit board (12).

6. The laser pointer according to claim 1, characterized in that: The invention also includes a base (1) for placing the laser pen; a placement slot (2) matching the laser pen is provided on the base (1), and two limit plates (3) are fixedly installed in the placement slot (2); a mounting block (4) is provided at the tail position of the inner shell (10), and two slots (5) are provided on the mounting block (4); the two limit plates (3) correspond to the two slots (5) one by one, and each limit plate (3) is engaged and limited with the corresponding slot (5).

7. The laser pointer according to claim 6, characterized in that: The housing (6) is fixedly connected to the mounting block (4).

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