JP2634968B2 - Auxiliary lamp built into the camera - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary lamp built in a camera, and more particularly to an auxiliary lamp provided for preventing red-eye.

[0002]

2. Description of the Related Art In flash photography by a camera, the so-called red-eye phenomenon, in which the eyes of a subject or the like appear red, has conventionally been a problem. Recently, measures have been taken to prevent this red-eye phenomenon. That is, the red-eye phenomenon is a phenomenon in which, when a strobe is used for a human or an animal, the strobe light enters the eyeball from the pupil, and this light is reflected from a blood vessel in the eyeball to make the eye appear red. Therefore, conventionally, in order to prevent the above-mentioned red-eye, weak light is preliminarily emitted (pre-emission) before actual photographing to reduce the pupil diameter of the subject and reduce the incidence of strobe light into the pupil. .

When the pre-emission is performed by a built-in camera lamp, it has been proposed that one strobe lamp such as a xenon tube emits light with two types of capacitors, for example. The flash lamp is pre-emitted with a small-capacity capacitor in synchronization with the shooting button, and the main light emission is performed with a large-capacity capacitor after the pupil diameter of the subject is reduced.

[0004]

However, when pre-light emission for preventing the red-eye effect is performed using one strobe lamp as described above, there is an advantage that one lamp can also serve as pre-light emission. However, there is a problem that charge / discharge control of large and small capacitors becomes complicated.

On the other hand, it has been conventionally proposed to incorporate an auxiliary lamp in a camera in addition to a strobe lamp to prevent red-eye. However, in this case, there are the following problems. That is, FIG. 4 shows a state in which the auxiliary lamp is held by a holder in the camera. In FIG. 4, the lamp (tube) 1 includes a reflector 2 having a parabolic cross section. 3 will be held. And if the lamp 1 is electrically connected by the connection pin 4,
Light emission by the lamp 1 becomes possible, and the emitted light is condensed by the reflection plate 2 and emitted toward the front surface.

However, as can be understood from FIG. 4, since the reflector 2 has a parabolic shape extending toward the front, when the auxiliary lamp is built in the camera, the camera itself must be large. Therefore, there is a problem that the size and weight cannot be reduced. In addition, when the auxiliary lamp is mounted and fixed, the reflector 2 has a parabolic shape, so that it is difficult to perform positioning, and adjustment for this is complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide an auxiliary lamp separately from a strobe lamp in order to eliminate complicated light emission control. An object of the present invention is to provide an auxiliary lamp with a built-in camera that simplifies the lamp structure so that the lamp can be built in compactly without increasing the size of the lamp and that is easy to mount.

[0008]

To achieve the above object, according to the Invention The auxiliary lamp-camera according to the present invention, the main lamp an auxiliary lamp for red-eye prevention built separately to the camera, the camera The connection fixing part to the support member is integrally formed.
Plus , directly grip the lamp so as to cover the outer circumference
Providing a tic-made holder, this holder plastic
The color is characterized by having a color having a light reflection effect.

[0009]

According to the above arrangement, the lamp can be directly mounted on the holder without any mounting, and the mounting can be completed easily without performing positioning adjustment or the like. And, for example, since the white holder functions as a reflector, the lamp light is efficiently radiated to the front side, and the amount of light in this case is increased by about 50% as compared with the case without the holder as a reflector. I do. Therefore, the amount of light for preventing red-eye can be efficiently obtained without using a parabolic reflector as in the related art.

[0010]

FIG. 1 shows the construction of an auxiliary lamp built into a camera according to an embodiment. A cylindrical lamp (tube) 6 shown is held by a holder 7. This holder 7
Is made of a white plastic material as a whole so as to retain the effect of the reflector, and a holder 7 is formed with a holding portion 7a having a space with an inner diameter corresponding to the outer diameter of the cylindrical lamp 6. The part 7a grips the lamp 6 by its elasticity while covering the lamp 6. Therefore, the holder 7
Serves as a reflector, and the holder 7 reflects the light of the lamp 6 to the front. A connection hole 9 for inserting the connection pin 8 of the lamp 6 is formed in the rear end portion 7b of the holder 7, and the lamp 6 is electrically connected by inserting and fixing the connection pin 8 into the connection hole 9. become. Therefore, the lamp 6 can be easily mounted simply by inserting and fitting into the holder 7 while aligning the connection pins 8, whereby a reliable fixed holding state can be obtained. Further, a connection fixing portion of the holder 7 is provided.
Then , a screw hole 10 is formed in a lower end portion 7c extending downward , and the holder 7 is screwed and fixed to a support portion in the camera by the screw hole 10.

FIG. 2 is an exploded perspective view showing a state in which the auxiliary lamp is disposed in the camera. FIG. 2 shows a state where the case is removed. In the figure, a lens barrel 13 having a photographing lens 12 is provided so as to be able to move forward and backward so as to be able to perform zoom photographing. A finder opening 14 and a light projecting section 15a for auto focus (AF) are provided above the lens barrel 13. And a light receiving section 15b. On the right side of the figure, a xenon tube 16 for strobe light emission as a main lamp is provided together with a semi-cylindrical reflector 17.

The auxiliary lamp is disposed on a line connecting the lens barrel 13 and the xenon tube 16, and the lamp 6 is mounted on the holder 7 mounted between the lens barrel 13 and the xenon tube 16. Is inserted. At this time, since the lamp 6 does not move while being fitted into the holder 7, the positioning of the lamp 6 itself is not required, and the lamp 6 can be easily attached to the position set by the holder 7.

FIGS. 3 (a) and 3 (b) show a state in which an auxiliary lamp is mounted in the camera, and the holder 7 is provided with a supporting portion 20 which is disposed close to the front case 18. FIG.
The lamp 6 is fixed by screwing through the screw hole 10 so that the lamp 6 is mounted so as to slightly protrude from the case 18. A lamp cover 22 attached to the case 18 is provided on the front of the camera. The lamp cover 22 is made of a transparent plate, and has a lens portion 22a having a predetermined curvature as shown in FIG. Is to spread. In addition, this lamp cover 2
2, a diffusion window 22b in which a diffusion bar for strobe light is formed at a position on the front side of the xenon tube 16, and a finder window (not shown) are also integrally formed.

The auxiliary lamp mounted in this manner is used for pre-emission performed before flash photography to prevent red-eye, but can be used for other purposes, for example, in passive autofocus control. The present invention can also be applied to emission of auxiliary light when external light becomes dark. According to the light emission experiment using the auxiliary lamp of the embodiment, it is confirmed that the light amount is increased by about 50% as compared with the case where the holder 7 serving as the reflector is not provided, which is sufficient for the preliminary light emission and the auxiliary light emission. It is possible to obtain the amount of light.

In the above embodiment, the holder 7 as the reflecting plate is formed of a white plastic material. However, the present invention is not limited to this, and other colors such as silver having a light reflecting effect can be used.

[0016]

As described above, according to the present invention,
In an auxiliary lamp built separately from the strobe lamp, a plastic holder that directly grips the lamp tube so as to cover the outer periphery is provided, and the plastic of this holder is formed of a material of a color having a light reflecting effect. As a result, the lamp structure can be remarkably simplified, and the auxiliary lamp can be built in compactly while maintaining the required light amount without increasing the size of the camera itself.

In addition, the conventionally used parabolic reflector is eliminated, and the connection fixing portion to the camera supporting member is integrated.
Since the bare lamp is directly attached to the formed holder, there is an advantage that the attachment of the auxiliary lamp is extremely easy and the positioning is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of an auxiliary lamp built into a camera according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing a mounting positional relationship of an auxiliary lamp inside the camera.

3A and 3B are cross-sectional views showing a state in which an auxiliary lamp is built in a camera, where FIG. 3A is a side view and FIG. 3B is a top view.

FIG. 4 is a partial cross-sectional view showing a state where a conventional auxiliary lamp is attached to a holder.

[Explanation of symbols]

 1, 6 ... lamp, 2 ... reflector, 3, 7 ... holder, 13 ... lens barrel, 16 ... xenon tube, 18 ... case, 20 ... support part, 22 ... lamp cover.

Claims (1)

(57) [Claims] 1. Built-in camera separately from main lamp
An auxiliary lamp for red-eye prevention, connecting the fixed portion of the camera support member is integrally formed, the plastic <br/> holder for gripping the lamp directly provided to cover the outer periphery of this holder plastic Is an auxiliary lamp built in the camera, which has a color having a light reflection effect.