JP2003329971A - Laser pointer prevented from shake - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for preventing the oscillation of the outer case of a laser pointer held by hand by the shake of the hand from being directly transmitted to a laser diode for emitting a laser beam and the laser spot at an indication point of a laser pointer used for pointing the position at a presentation or the like from being slightly oscillated to make the indication displeasing. <P>SOLUTION: The laser pointer consists of: a laser diode for a light source; a laser fixing member serving also as a laser driving circuit; a power supply part; an outer case for housing each part; and an oscillation transmission attenuating member which is arranged between the laser diode fixing part and the outer case and makes the oscillation of the outer case be hardly transmitted to the laser fixing part. The laser spot indicating a position is prevented from being moved about by hand shake when holding this outer case by hand. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laser pointer used as a presentation tool for pointing a position using a laser beam, which is used in lectures, conferences, exhibitions and the like.

2. Description of the Related Art In recent years, there have been remarkable improvements in the quality and performance of laser pointers as presentation tools used at lectures, conferences, exhibitions and the like. In particular, the longevity and low power consumption of lasers are improved daily, and higher performance lasers are being sought. Hereinafter, an example of a conventional laser pointer will be described with reference to the drawings. FIG. 4 shows the structure of a conventional laser pointer. In FIG. 4, reference numeral 1 is a laser diode serving as a light source of a laser pointer, 2 is a laser drive circuit for driving the laser diode, and 3 is a power supply unit for supplying power to the laser drive circuit. Reference numeral 4 is a lead wire for connecting the laser drive circuit to a power supply unit, 5 is an outer case for housing these components, 6 is a laser beam emitted from the laser pointer thus configured, 7 Is the laser spot when this laser light is applied to the projection surface. The laser pointer configured as described above is sometimes used with a power supply switch attached or sometimes incorporated in a remote controller of a liquid crystal projector.

However, in this structure, since the laser diode is fixed to the laser drive circuit and directly fixed to the outer case, the outer case 5 is grasped by the hand and the laser spot 7 is indicated on the projection surface. If you try to maintain it in the desired position, a slight shake of the hand you are holding will be transmitted to this outer case 5, directly to the laser diode 1, and finely centered around the position you want the laser spot 7 on the projection surface to point to. You will be moving around and will be unsightly. In view of the above-mentioned problems, the present invention makes it difficult for a minute hand shake when the outer case is gripped to be transmitted to the laser diode 1, and the laser spot 7
The present invention aims to provide a laser pointer that can prevent the user from moving around from the position he wants to point, regardless of his intention.

In order to solve this problem, the laser pointer of the present invention has a laser diode serving as a light source, a laser drive circuit for driving the laser diode, and a power supply for supplying power. Portion, a laser fixing member for fixing the laser diode, an outer case for housing each component, and a laser fixing member for preventing vibration of the outer case from being transmitted to the laser fixing member between the laser fixing member and the outer case. It is configured to include a vibration transmission damping member.

With this structure, when the outer case is held by hand and the position is indicated by the laser light, the hand shake is difficult to be transmitted to the laser fixing member, and the point indicated by the laser light is fine. You can prevent unsightly without moving.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A laser pointer according to an embodiment of the present invention will be described below with reference to the drawings. 1 in FIG.
Is a laser diode serving as a light source of a laser pointer, 2 is a laser drive circuit for driving the laser diode, and 3 is a power supply unit for supplying power to the laser drive circuit. Reference numeral 4 is a lead wire for connecting the laser drive circuit and the power supply unit, 5 is an outer case for housing these components, 6 is a laser beam emitted from the laser pointer thus configured, and 7 is It is a laser spot when this laser light is applied to the projection surface. Also, 8
Is a laser fixing member for fixing the laser diode,
A vibration transmission damping member 9 is provided between the laser fixing member and the outer case to make it difficult to transmit the vibration of the outer case to the laser fixing member. The operation of the laser pointer configured as described above will be described below. When a presentation such as a lecture, a conference, or an exhibition is performed using the laser pointer in FIG. 1, it is generally attempted to hold the outer case 5 with a hand and place it at a position where the laser spot 7 is to be pointed. Since the laser fixing member 8 is held from the outer case 5 via the vibration transmission attenuating member 9, a slight shake of the hand holding the outer case is difficult to be transmitted to the laser diode 1 fixed to the laser fixing member 8. Has become. As described above, the laser pointer according to the present invention attenuates a minute hand shake when grasping with a hand during a presentation, and prevents the laser spot from moving unsightly around the pointed position. Further, another embodiment will be described here. In FIG. 2, the laser diode 1 is fixed to a laser driving circuit / laser diode fixing member 10 in which a laser driving circuit and a laser fixing member are integrated, and is held via a vibration transmission damping member 9. Further, as shown in FIG. 3, there is also one in which a laser pointer is used integrally with the liquid crystal projector remote controller unit 11.

As described above, according to the present invention, when it is attempted to point the position by the laser beam while holding the outer case by hand, the hand shake is difficult to be transmitted to the laser fixing member, and the point pointed by the laser beam is fine. It is possible to obtain a hand-shake preventing laser pointer characterized by preventing unsightly movement.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a configuration and an operation in an embodiment of the present invention.

[Fig. 2]

FIG. 3 is a diagram for explaining a configuration and an operation in another embodiment.

FIG. 4 Conventional example of laser pointer

[Explanation of symbols]

1 laser diode 2 Laser drive circuit 7 Laser spot 9 Vibration transmission damping member

Claims (5)

[Claims] 1. A presentation tool for pointing a position using a laser beam, which is used in a lecture, a conference, an exhibition, etc., and includes a laser diode serving as a light source, and a laser driving circuit for driving the laser diode. A power supply unit for supplying power, a laser fixing member for fixing the laser diode, an outer case for accommodating each component, and a laser for vibration of the outer case between the laser fixing member and the outer case. It consists of a vibration transmission damping member to make it difficult to transmit to the fixing member, and when you try to point the position with the laser light while holding the outer case with your hand, hand shake is hard to be transmitted to the laser fixing member and it is indicated with the laser light. An anti-shake laser pointer, which prevents the unsightly movement of fine points. 2. The anti-shake laser pointer according to claim 1, wherein the vibration transmission damping member is made of a rubber material. 3. The anti-shake laser pointer according to claim 1, wherein the vibration transmission damping member is made of a gel material. 4. The anti-shake laser pointer according to claim 1, wherein the vibration transmission damping member is made of a metal or plastic spring. 5. The vibration transmission damping member according to any one of claims 2 to 4.
The hand-shake preventing laser pointer according to claim 1, wherein the laser pointer is a combination of the above-mentioned members.