KR20060027565A - Laser pointer using the ear-phone connector - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser pointer, and more particularly, to a laser pointer including a laser diode that emits light by receiving a predetermined power, comprising: an earphone connecting jack for connecting a conventional earphone to an ear jack insert of an electronic device; And a laser diode connected to the earphone connecting jack and emitting light by power supplied through the earphone connecting jack.

Jacks, laser diodes, earphones, pointers

Description

LASER POINTER USING THE EAR-PHONE CONNECTOR}

1 is a view showing a laser pointer using an ear jack according to a first embodiment of the present invention.

2 is a view showing a laser pointer using an ear jack according to a second embodiment of the present invention.

Figure 3 is a block diagram showing the configuration of a mobile phone terminal having a laser pointer using an ear jack according to an embodiment of the present invention.

4 is a circuit diagram showing a connection circuit of a laser pointer using an ear jack according to an embodiment of the present invention.

Description of the main parts of the drawing

10: mobile communication terminal 11, 21: laser diode

12, 22: earphone jack 13: ear jack insertion port

23: handle portion 30: power supply

31: switch portion 32: operation circuit portion

33: laser diode 34: regulator

35: second switch 36: third switch                 

40: control unit 46: switching unit

49: Ion phone jack SP: Speaker

MIC: Microphone

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile phone terminal having a laser pointer, and more particularly, to a mobile phone terminal having a laser pointer that can be used as a laser pointer in an emergency by attaching a laser diode to a mobile phone terminal that people always carry.

In general, a laser pointer is used by a lecturer (user) to indicate a specific content in a meeting, presentation, lecture, etc. by using a strong laser beam concentrated in one point. Conventional laser pointers are manufactured on the market with a ballpoint pen or less in size for easy portability, and are configured to allow a user to arbitrarily turn on / off power using a switch.

Meanwhile, in the related art, a user has to carry a laser pointer in a bag or carry it in a body in order to use the laser pointer in a meeting, presentation, lecture, or the like. Therefore, the user was inconvenient to take the laser pointer at every meeting, and in case of forgetting or forgetting the flash, the user was embarrassed or embarrassed at the meeting.

In addition, the laser pointer has to emit a strong laser light so that it can be identified even in a bright place, there is a problem that the battery is easily consumed when used for a long time. In addition, since a general laser pointer uses a mercury battery that is difficult to obtain in a general store, when a power supply is suddenly consumed, there is a problem in that it is difficult to use.

Accordingly, an object of the present invention is to provide a laser pointer using an ear jack for supplying power to the laser diode through the earphone connection terminal of the mobile communication terminal.

It is also an object of the present invention to provide a laser pointer using an ear jack that can perform a laser pointer function by connecting to the earphone connection terminal of the mobile communication terminal.

A laser pointer for achieving the above object; Claims [1] A laser pointer comprising a laser diode emitting light by receiving a predetermined power, comprising: an earphone connecting jack for connecting a conventional earphone to an ear jack insertion hole of an electronic device; And a laser diode connected to the earphone connecting jack and emitting light by power supplied through the earphone connecting jack.                     

Hereinafter, a detailed description according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations will be omitted when it is determined that the detailed descriptions of the known functions or configurations may unnecessarily obscure the subject matter of the present invention.

The present invention provides an apparatus for providing a laser pointer function using an earphone connection terminal provided in a mobile phone terminal. That is, the conventional laser pointer uses a laser pointer by supplying power to a battery such as a thick ballpoint pen, but the present invention uses a laser pointer that is light and does not need to be replaced by using a power supplied to the injector of a mobile phone. Can be.

1 is a view showing a laser pointer using an ear jack according to a first embodiment of the present invention.

Referring to FIG. 1, the laser pointer using the ear jack according to the present invention is connected to the earphone jack at one end of the laser diode 11 to be connected to the ear jack insertion hole 13 for connecting the earphone of the mobile phone terminal 10. (12) is provided.

Accordingly, when the ear jack 12 of the laser pointer according to the present invention is inserted into the ear jack insertion hole 13 connected to the mobile communication terminal, the power is supplied from the mobile phone terminal 10 to the ear jack. The laser diode 11 constituting the laser pointer emits light.

On the other hand, the power supply to the ear jack 12 can be controlled by the setting of the mobile phone terminal 10. For example, a laser pointer control menu may be set in a menu of the cellular phone terminal 10 to control power supply to the ear jack insertion hole 13. Accordingly, the ear jack 12 of the laser pointer is connected to the ear jack insertion hole 13 of the mobile phone terminal 10, and then light emission of the laser pointer is controlled using a predetermined key provided in the mobile phone terminal. . At this time, the key operation is preferably set to a key attached to the side of the mobile phone terminal in order to easily use the laser pointer.

2 is a view showing a laser pointer using an ear jack according to a second embodiment of the present invention.

Referring to FIG. 2, unlike the first embodiment of FIG. 1, the distance between the mobile phone terminal and the laser diode 21 may be increased by connecting the earphone connecting jack 22 and the laser diode 21 with a predetermined cable. . For example, in the first embodiment as shown in FIG. 1, the laser pointer should be used with the cellular phone terminal in the hand. However, in the case of the second embodiment of FIG. 2, the earphone jack 22 is connected to the mobile phone. Connected to the terminal, it is possible to use the cell phone terminal in the pocket.

Accordingly, the user may move the direction of the laser diode 21 by holding the predetermined handle 23 provided near the laser diode 21. In addition, a power control switch may be further provided at a part of the handle 23 to control power of the laser diode 21.

On the other hand, since the laser pointer according to the present invention is supplied with power using an ear jack, it is possible to use not only the mobile phone terminal but also any electronic device to which the ear jack can be connected.

3 is a block diagram showing the configuration of a mobile phone terminal according to an embodiment of the present invention. A description with reference to FIG. 3 is as follows.

The transceiver 41 processes a radio signal transmitted and received through an antenna. The display unit 42 displays an operation state, a function, a telephone number, and the like of the mobile phone terminal under predetermined control. The key input unit 43 generates and outputs key data on numbers input from the outside. The storage unit 47 stores operating systems and applications necessary for the operation of the mobile phone terminal, settings by various users, and stores user information such as a phone number. The power supply unit 48 supplies power necessary for the entire mobile phone terminal. The controller 40 controls the overall operation of the mobile phone terminal according to the operating system, application programs and setting values stored in the storage unit. The voice processor 44 receives the signal output from the transceiver 41 under the control of the controller 40, processes the voice signal into a voice signal, and outputs the signal to the speaker SP. The voice signal is input from the microphone MIC. Process and output to the transceiver 41. The laser pointer power supply unit 45 converts the power input from the power supply unit 48 into a stable power source for driving the laser diode according to the present invention under the control of the control unit 40. Reference numeral 49 in the drawings represents an earphone jack. The switching unit 46 connects the microphone MIC, the speaker SP, and the earphone to the earphone jack 49 or the laser pointer power supply 45 and the earphone jack 49 under the control of the controller 40. do.

FIG. 4 is a circuit diagram embodying the connection of the power supply unit 48, the laser pointer power supply unit 45 and the switching unit, the upper jack 49, and the laser diode of FIG.

In order to supply stable power to the laser diode through the ear jack, a circuit as shown in FIG. 4 is preferably provided.

Referring to FIG. 4, the connection circuit of the laser pointer includes a power supply unit 30 including a battery B1, capacitors C1 and C2, and a regulator 5 for supplying power, and the power supply unit 30. A switch 31 connected to an output terminal for switching the power of the power supply unit 30, an operation circuit unit 32 operated according to the switching of the switch unit 31, and a power output from the operation circuit unit 32. The switching unit 31 for switching to the earphone jack 49 and the laser diode 33 for emitting a laser beam depending on the operation of the switching unit 46 may be. When the power is connected to the earphone jack 49, the connection between the earphone jack 49, the speaker SP and the microphone MIC is controlled by the second switch 35 and the third switch 36 by the controller 40. It is disconnected by turning off.

The operation circuit unit 32 is connected to the switch 31 to limit the flow of current to the first resistor R1, and the emitter is one contact point of the on / off switch 20 and the first resistor R1. A first transistor Q1 connected to the other side contact of the first resistor R1 and switched on when the switch unit 31 is turned on, and an emitter at a base of the first transistor Q1. Is connected, a base is connected to the collector of the first transistor Q1, and the collector is connected to the laser diode 33, the second transistor Q2, the collector and the second transistor of the first transistor Q1. A second resistor R2 is commonly connected to the base of Q2 to limit the flow of current.                     

In order to install the laser pointer of the present invention, a space of 12 × 6 mm may be additionally required on the PCB configured by the existing portable information terminal and the cellular phone, and the battery B1 included in the power supply unit 30 may be required. Represents a conventional cell phone battery. The switch 31 further includes a laser function in an existing menu tree.

Hereinafter, described in detail with reference to the accompanying drawings the operation of the present invention.

The present invention is set so that the function of the laser pointer can be used only in the standby or sleep mode of the mobile phone, and it is preferable to set such a pointer function not to be used when using the mobile phone.

That is, the operation relationship between the cellular phone terminal, the cellular phone, and the laser pointer is completely separate, and the present invention satisfies the standardization standard of ANSIZ 136.1.

The present invention selects a function key + menu key + laser mode + random key on / off when utilizing the function of the laser pointer in the standby or sleep mode.

Looking at the operation of the present invention, if any power is supplied from the battery (B1) of the power supply unit 30 in the state in which the switch unit 31 is on, the ripple of the input voltage is removed through the capacitor (C1) The more stable power is continuously output through the regulator 34.

In addition, since the power through the regulator 34 is once more ripple is removed through the capacitor (C2) it is possible to supply the maximum stable power.                     

If the user turns on the switch 31, the second switch 35 and the third switch 36 of the switching unit 46 at the same time for use as a laser pointer, the stable power supplied from the regulator 34 operates. Since the current flows in the emitter and the base of the first transistor Q1 input to the circuit unit 32, the first transistor Q1 is turned on, and thus the current flows in the base and emitter of the second transistor Q2. Since the second transistor Q2 is also turned on, power is supplied to the laser diode 40 so that the laser diode 33 is operated so that the laser beam is radiated.

However, since the power of the power supply unit 30 is not supplied when the switch of the switch 31 is turned off, the operation circuit unit 32 does not operate so that the laser does not radiate from the laser diode 33.

On the other hand, in the embodiment of the present invention has been described with respect to specific embodiments, various modifications are possible without departing from the scope of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be defined not only by the appended claims, but also by those equivalent to the claims.

According to the present invention, in using the laser pointer, by supplying power supply through the mobile phone terminal, there is an advantage that the laser pointer can be easily used without worrying about the power supply. In addition, there is an advantage in that it is convenient to use by attaching to the mobile terminal, which is usually always carried. In addition, there is an advantage that can be used without modification of the mobile phone terminal by connecting through the earphone insert port of the mobile phone terminal using the earphone jack.

Claims (3)

A laser pointer comprising a laser diode that emits light when a predetermined power is supplied, Earphone connecting jack for connecting the conventional earphone to the ear jack insertion port of the electronic device; And And a laser diode connected to the earphone connecting jack and emitting light by power supplied through the earphone connecting jack. The method of claim 1, The earphone jack is connected to the ear jack insertion port of the mobile phone terminal, the laser pointer using the ear jack, characterized in that the power is supplied from the mobile phone terminal. The method of claim 1, The earphone jack and the laser diode is a laser pointer using an ear jack, characterized in that connected via a wire of a predetermined length.

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