JPH09281563A - Irradiation device for flash photographing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a red-eye phenomenon by turning and displacing a light emission part around a prescribed axis, differently displacing a condensing lens from the light emission part and changing the irradiation state of light emitted from the light emission part. SOLUTION: When the driving gear part 2a of a driving lever 2 is turned clockwise by a driving source interlocking with a photographing optical system, the light emission part 1 is turned clockwise by interlocking with the lever 2 and started to be elevated. Then, a pressing spring 5 abuts on a stopper 8 arranged on a camera main body by pressing a guide lever 4 counterclockwise. When the light emission part 1 is elevated, a shaft 1b implanted at the light emission part 1 is guided by a long hole 4a formed on the lever 4 so as to face the light emission part 1 in the direction of an object. A driving gear 6 is coupled to the identical driving source to the lever 2 and also turned clockwise at the same time that the gear part 2a of the lever 2 is turned. Then, a condensing lens holding member 3 is elevated so as to separate the condensing lens 3a condensing the light emitted from the light emission part 1 from the photographing optical system.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flash photographing irradiation device capable of changing an irradiation state.

[0002]

2. Description of the Related Art A light emitting portion is moved in parallel by using a cam or the like to change a distance between the light emitting portion and a condenser lens for zooming.

When the condenser lens is moved in order to change the distance between the light emitting portion and the condenser lens, the condenser lens is moved by using the light emitting portion driven by a motor or the like as a driving source.

For example, Japanese Unexamined Patent Publication No. 1-72129 discloses a structure in which a light emitting portion and a condenser lens are integrally moved by providing a pop-up mechanism using a link mechanism.

Further, Japanese Examined Patent Publication No. 6-72992 discloses a configuration in which the retractable and zoom are performed by the same mechanism with the light emitting portion facing downward when stored.

Further, Japanese Laid-Open Patent Publication No. 59-64820 discloses a configuration in which a light emitting portion pops up, and a condenser lens moves in the optical axis direction to perform zooming during the popping up process.

[0007]

When the focal length of the taking optical system becomes long, a phenomenon called "red eye" occurs. And, in order to prevent the red-eye phenomenon, it is known that it is effective to separate the strobe light emitting part from the photographing optical system.
One of the configurations for this is a retractable type (the stroboscopic light emitting part is housed in the camera body when not shooting, or the amount of projection of the light emitting part from the camera changes according to shooting conditions (shooting focal length)). Strobe is possible. However, if further zooming is attempted in such a configuration, a mechanism for housing the light emitting section and a zooming mechanism for the light emitting section must be provided, which complicates the mechanism.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and includes a light emitting section, an optical member for collecting light from the fermentation section, and a predetermined axis for the light emitting section. A flashlight irradiation device having a changing means for changing the irradiation state of the light from the light emitting section by rotationally displacing the optical member and displacing the optical member differently from the rotational displacement. .

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) FIG. 1 is a schematic view of a camera according to a first embodiment of the present invention, in which 1 is a light emitting portion, 2 is a drive lever for driving the light emitting portion, and 3 is a condenser lens holding member. 3a is a condenser lens for condensing the light emitted from the light emitting portion, 4 is a guide lever for directing the light emitting portion toward the subject, 5 is one end held by the camera body, and the other end is held by the guide lever 4. An urging spring for urging the guide lever 4 counterclockwise, 6 a drive gear for vertically moving the condenser lens holding member, 7 a camera body, 8 a stopper provided in the camera body, 9 a light emitting portion and the like. It is a cover to cover.

FIG. 1 shows a state in which the light emitting portion is housed in the camera body. When the drive gear portion 2a of the drive lever 2 is rotated clockwise by a drive source (not shown) that is interlocked with the photographing optical system, the light emitting portion 1 is rotated clockwise in conjunction with the drive lever 2 and starts to rise. At this time, the urging spring 5 urges the guide lever 4 counterclockwise, and the shaft 1b implanted in the light emitting portion 1 is guided by the elongated hole 4a provided in the guide lever to direct the light emitting portion 1 toward the subject. Turn to. The drive gear 6 is connected to the same drive source (not shown) as the drive lever 2, and when the drive gear portion 2a of the drive lever 2 rotates clockwise, the drive gear 6 also rotates clockwise to collect light. The lens holding member 3 is raised.

FIG. 2 is a diagram showing a case where the distance between the light emitting section 1 and the condenser lens 3a in the direction of the subject is narrowed to widen the irradiation angle, that is, in the wide photographing state.
FIG. 6 is a diagram showing a case in which the distance between the light emitting unit 1 and the condenser lens 3a in the subject direction is widened to narrow the irradiation angle, that is, in the telephoto shooting state.

With such a configuration, pop-up and the above zooming are performed simultaneously. In order to prevent the red-eye phenomenon, the longer the distance to the subject, the larger the distance between the shooting optical axis in the direction orthogonal to the subject direction and the optical axis of the irradiation light for flash photography, As can be seen from the figure, the pop-up amount is set to be larger in the telephoto shooting state (often used when the distance to the subject is long), and the shooting optical axis in the direction orthogonal to the subject direction ( The gap between the illustrated portion and the light emitting portion 1 is made wider.

The case where the light emitting portion 1 shown in FIG. 1 is stored in the camera body from the wide-angle shooting state will be described. First, when the drive gear portion 2a of the drive lever 2 is rotated counterclockwise by a drive source (not shown) that is interlocked with the photographing optical system, the light emitting portion 1 is rotated counterclockwise in conjunction with the drive lever 2 and is lowered. To start. At this time, the biasing spring 5 biases the guide lever 4 counterclockwise. However, the guide lever 4 comes into contact with a stopper 8 provided on the camera body and cannot rotate.

When the drive lever 2 and the light emitting portion 1 are further attempted to rotate counterclockwise from this state, the shaft 1b planted in the light emitting portion 1 is provided with the elongated hole 4a formed in the guide lever 4.
The light emitting unit 1 is rotated in the direction in which the light emitting surface faces downward, and is compactly housed in the camera body 7.

(Second Embodiment) FIG. 4 is a schematic view showing a camera of a second embodiment of the present invention, 3 is a condenser lens holding member, 3a is a condenser for collecting light emitted from a light emitting portion. A condensing lens, 6 a drive gear for moving the condensing lens holding member up and down, 7 a camera body, 11 a light emitting part, 12 a drive lever for driving the light emitting part, 14 an indexing gear held by the camera body, Reference numeral 15 is an idler that connects the indexing gear 14 and the gear portion 11a provided to the light emitting portion 11, and 19 is a lid that covers the light emitting portion and the like.

FIG. 4 is a diagram showing a case where the light emitting unit 11 is housed in the camera body 7, is further oriented toward the subject, and the light emitting unit 11 and the condenser lens 3a are close to each other, that is, in the wide-angle photographing state. When the drive gear portion 12a of the drive lever 12 is rotated in the clockwise direction by a drive source (not shown) interlocking with the photographing optical system, the light emitting portion 11 causes the indexing gear 14 and the idler 15 to rotate.
It is regulated by and is rotated clockwise with the light emitting surface facing the subject side to start rising. The drive gear 6 is connected to the same drive source (not shown) as the drive lever 12, and when the drive gear portion 12a of the drive lever 12 rotates clockwise, the drive gear 6 also rotates clockwise to collect light. The lens holding member 3 is raised.

FIG. 5 is a diagram showing a case where the light emitting unit 11 faces the subject and the light emitting unit 11 and the condenser lens 3a are far from each other, that is, in the telephoto photographing state.

(Third Embodiment) FIG. 6 is a schematic view showing a camera of a third embodiment of the present invention, in which 7 is a camera body and 1 is a camera body.
1 is a light emitting unit, 12 is a drive lever for driving the light emitting unit, 13
Is a condenser lens holding member, 13a is a condenser lens for condensing the light emitted from the light emitting portion, 14 is an indexing gear held by the camera body, 15 is the indexing gear 14 and the light emitting portion 11.
An idler for connecting the gear portion 11a provided on the drive lever 16, a drive lever 16 for vertically moving the condenser lens holding member, and a lid 19 for covering the light emitting portion and the like.

In the camera of the second embodiment described above, since the light emitting section 11 makes a rotational movement and the condenser lens 3a makes a linear movement,
Although slightly, the center of the light emitting part and the center of the condenser lens deviate during zooming. The third embodiment is an improvement on this point.

Since the operation of the light emitting section 11 is the same as that of the second embodiment, its explanation is omitted. Drive gear 16a of drive lever 16
Is connected to the same drive source (not shown) as the drive lever 12, and when the drive gear portion 12a of the drive lever 12 rotates clockwise, the drive gear 16a also rotates clockwise. At this time, the interlocking shaft 16b planted on the drive lever 16 is
The condenser lens holding member 13 moves up along the elongated hole 13b provided in the condenser lens holding member 13, and the condenser lens holding member 13 rises. Interlocking axis 1
The distance and the positional relationship between 6b and the rotary shaft 16c of the drive gear 16a are the same as the distance and the positional relationship between the rotary shaft 11b of the light emitting part 11 and the rotary shaft 12b of the drive lever 12. The amount of rise of the condenser lens 13 a with respect to the amount of rotation matches the amount of rise of the light emitting unit 11 with respect to the amount of rotation of the drive lever 12.

In each of the embodiments described above, the light emitting section 1
Alternatively, 11 is the light emitting portion of the present invention, the condenser lens 3a or 13a is the optical member of the present invention, and the drive lever 2 or 1
2, the drive gear 6 or the drive lever 16 respectively correspond to the variable means of the present invention.

The above is the correspondence relationship between each configuration of the embodiments and each configuration of the present invention, but the present invention is not limited to the configurations of these embodiments, and the functions shown in the claims or the embodiments It goes without saying that any structure may be used as long as the function of the structure can be achieved.

In the present invention, the above-described embodiments or their technical elements may be combined as needed.

The present invention is applied to various types of cameras such as single-lens reflex cameras, lens shutter cameras, video cameras, optical devices other than cameras, and other devices, and further to those cameras, optical devices, and other devices. Device or
It can also be applied to the elements constituting these.

[0025]

As described above, according to the present invention, there is provided an illumination device for flash photography capable of changing the irradiation state and changing the distance from the photographing optical axis at the same time without complicating the structure. It has become possible.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a state where an irradiation device is housed in a camera according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram showing a wide-angle shooting state in the camera of the first embodiment of the present invention.

FIG. 3 is a schematic view showing a telephoto shooting state in the camera of the first embodiment of the present invention.

FIG. 4 is a schematic diagram showing a wide-angle shooting state in the camera of the second embodiment of the present invention.

FIG. 5 is a schematic diagram showing a telephoto shooting state in the camera of the second embodiment of the present invention.

FIG. 6 is a schematic view showing a wide-angle shooting state in the camera of the third embodiment of the present invention.

FIG. 7 is a schematic view showing a telephoto shooting state in the camera of the third embodiment of the present invention.

[Explanation of symbols]

 1, 11 Light emitting part 2, 12 Drive lever 3, 13 Condenser lens holding member 4 Guide lever 5 Energizing spring 6 Drive gear 7 Camera body 8 Stopper 9, 19 Lid 14 Indexing gear 15 Idler 16 Drive lever

Claims (3)

[Claims] 1. A light emitting unit, an optical member for collecting light from the fermentation unit, and a rotational displacement of the light emitting unit around a predetermined axis and a displacement of the optical member different from the rotational displacement. And a variable unit for changing the irradiation state of light from the light emitting unit. 2. The irradiation device for flash photography according to claim 1, wherein the variable means moves the optical member in parallel. 3. The irradiation device for flash photography according to claim 1, wherein the variable means displaces the light emitting unit and the optical member in response to a change in the focal length of the photographing optical system.