JPH03154482A - Image pickup distance setting mechanism - Google Patents

Abstract

PURPOSE:To use one rod for pickup distance setting and for a reception antenna by using for an image pickup distance setting mechanism and also for the reception antenna. CONSTITUTION:The length of a telescopic rod 3 is extended by a different length in response to the purpose of use and restricted by a regulation member 1. Thus, the close pickup is set at a distance correctly and the rod 3 is used for setting the pickup distance. In the case of reception, a positioning pin 10 integrated with the member 1 is fallen in a step of the positioning spring 9. Thus, the regulation implemented at a clock pickup is relieved and the pin 10 is pressed to the spring 9 by the action of the coil spring 13 pressing back the regulation member 1 and when the user extends the rod 3, the length required finally for the reception is obtained. Thus, one rod 3 is used for both the pickup distance setting and the reception antenna.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a shooting distance setting mechanism, particularly a TV-integrated still video camera that can also receive TV broadcasts. The present invention relates to a shooting distance setting mechanism for performing focusing.

(Prior Art) Conventionally, in this type of device, a camera requires the photographer to adjust the distance between the photographing lens and the subject to achieve focus. Since the range (depth of field) becomes shallow, especially for close-up photography, in order to allow the photographer to set the shooting distance as accurately as possible, it is necessary to set the shooting distance only in the direction of the shooting optical axis as shown in Figure 9. Telescopic rod R with equal shooting distance and length
There was one with built-in camera body F.

It goes without saying that this rod must always be parallel to the optical axis in order to set an accurate shooting distance.

On the other hand, for still video cameras that record and play back still images with an integrated LCD monitor for use as a viewfinder or for immediate playback, and that have a close-up shooting function as mentioned above, for the same reason as above, rod was required.

In recent years, when a tuner for receiving TV broadcasts is built into the camera, a rod antenna for receiving broadcasts is also required, so in the end, a rod for conventional close-up i-shadow was added, and Futari developed the camera. It was installed.

[Problem that the invention is trying to solve]

However, the above-mentioned camera is difficult to use because it has two rods, and the larger the size, the more difficult it is to use.

This invention was made in order to solve such problems, and in order to share the rod antenna for shooting distance setting and the rod antenna for reception, a telescopic rod is configured so that it can be used as a rod antenna. The purpose is to provide a distance setting mechanism.

Furthermore, since the conventional close-up rod extends only in the direction of the photographing optical axis, the direction of the antenna cannot be adjusted at the time of broadcasting. For this reason, the entire camera body must be moved to obtain a good reception condition, making it extremely difficult to use.

Furthermore, since the length of the rod is determined by the &J2 distance, there is a problem that it is not possible to set the length to the optimum length for reception.

Therefore, in addition to the above, it is an object of the present invention to provide a photographing distance setting mechanism that is provided with means for regulating the length and direction in which the photographer can extend the distance.

[Means to solve the problem]

Therefore, in the one shadow distance setting mechanism of the present invention, the photographing distance setting mechanism is configured so that it can also be used as a receiving antenna.

To this end, it is preferable to provide a means for regulating the length and direction in which the II photographer can extend the telescopic photographing distance setting mechanism.

(Function) With the above configuration, the photographing distance setting mechanism according to the present invention works so that the photographing distance setting mechanism can be used as a receiving antenna.

By providing means for regulating the length and direction in which the telescopic shooting distance setting mechanism can be extended, it functions to regulate the length and direction in which the photographer can extend.

(Example) Below, a shooting distance setting mechanism according to an example of the present invention will be described based on the drawings.

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention when the rod is stored, and FIG. 2 is a plan view of the same when close-up photography is performed.
Figure 3 is a plan view of the same reception, Figure 4 is Figure 2 IV-IV
5 is a cross-sectional view taken along the line V-V in FIG. 3, FIG. 6 is a detailed view of the camera viewed from the opposite direction of the optical axis during storage and close-up photography, and FIG. 7 is a perspective view showing the external appearance during close-up photography. , FIG. 8 is a perspective view showing the external appearance at the time of reception, and FIG. 9 is a perspective view showing a conventional example.

In the figure, reference numeral 1 denotes a regulating member 5. This regulating member 1 regulates the movement of a rod 3 serving as a shooting distance setting mechanism.

Reference numeral 2 denotes a rod-removal stop, and the rod-removal stop 2 prevents the rod 3 from being removed from the camera body F. 4 is a hinge part 35 for bending the rod 3, a holding spring for holding the rod 3, 6 is a G-shaped ring for fixing the spring, 7 is a conductor that connects the antenna to the electric circuit, and 8 is a camera body. In the exterior of F, 9 is a positioning spring for positioning the rod '3, 1o is a positioning pin, and 11 is a slide rail portion on which the rod 3 slides.

Reference numeral 12 represents a regulating member guide shaft of the regulating member 1, and reference numeral 13 indicates a regulated article press-contact spring. In this embodiment, a case where a coil spring is used will be described. 14 is a bearing member, and the regulating member 1 is connected to the coil spring 13 by the regulating member guide shaft 12.
13, it is held movable in the vertical direction. 15 is a liquid crystal monitor.

Next, the operation will be explained.

With the above structure, during normal shooting, the rod 3 is housed inside the camera body F, as shown in FIG.

During close-up photography, the rod 3 is required to set the i-shadow distance. When #1 shadow person pulls the tip of rod 3, the second
As shown in the figure, the rod 3 extends in the optical axis direction, but as shown in Fig. It cannot go outside of main body F.

If the distance from the tip of the rod 3 to the photographing lens when the rod 3 is inhibited is the same as the photographing distance for close-up photography, close-up photography can be performed at the correctly set distance as shown in Figure 7. It is done.

Furthermore, when receiving television broadcasts, a rod is used as an antenna. The user first slides the regulating member 1 upward to bring it into the state shown in FIG. At this time,
The regulating member 1 has a positioning pin 10 integrated with this member 1.
Since it falls into the step of the positioning spring 9 as shown by the dotted line in FIG. 6, the restriction that was in place during close-up photography is released.

Since the positioning bin 10 is pressed against the positioning spring 9 by the action of the coil spring 13 which tries to push back the regulation i1J member 1, it will not return to the regulation state again due to its own weight.

Among the above operations, when the user pulls out the rod 3, it finally reaches the length required for reception. In this state, the wood holding spring 5 enters into the rod removal stopper 2 and is pressed against it.

Therefore, the rod 3 and the pull-out stop 2 are electrically connected, and the pull-out stop 2 is electrically connected.
Since the rod 3 is connected to the circuit by a conductive wire 7, the rod 3 can be bent around the hinge portion 4 and used as an antenna, as shown in FIG.

According to one embodiment of the present invention, the length of the telescoping rod 3 is pulled out for each different length depending on the purpose of use, and the regulating member 1 is provided for regulating the length, so that close-up photography is possible. is carried out at a correctly set distance, and the rod 3 can be used for setting the photographing distance. Also, during reception, the regulating member 1 has a positioning pin 10 integrated with this member 1 that falls into the step of the positioning spring 9. , the regulation that has been applied during close-up photography is released, and the positioning bin 1o is moved by the positioning spring 9 due to the action of the coil spring 13 that pushes the regulation member 1 back.
When the user pulls out the rod 3, the length necessary for reception is finally reached, allowing the rod 3 to be used both for setting the shooting distance and as the reception antenna. It is possible to provide the rod 3, which is a shooting distance setting mechanism, configured as follows.

[Other Examples]

The shooting distance setting mechanism is provided with a rule J member 1 that regulates the length that the photographer can extend, and a hinge part 4 for bending the rod, which is a means for regulating the direction. This has the effect of regulating the length and direction in which it can occur.

(Effects of the Invention) As explained above, according to the shooting distance setting mechanism of the present invention, the length at which the extendable wood can be pulled out can be regulated to different lengths depending on the purpose of use. This configuration has the effect that the - number of rods can be used both for setting the shooting distance and for the receiving antenna.

Further, if a means for regulating the length and direction in which the photographer can extend the camera is provided, the usability will be improved.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention when the rod is stored, and FIG. 2 is a plan view of the same when close-up photography is performed.
Figure 3 is a plan view of the same reception, Figure 4 is Figure 2 IV-r/
5 is a cross-sectional view taken along the line V-V in FIG. 3, FIG. 6 is a detailed view of the camera viewed from the opposite direction of the optical axis during storage and close-up photography, and FIG. 7 is a perspective view showing the external appearance during close-up photography. , FIG. 8 is a perspective view showing the external appearance at the time of reception, and FIG. 9 is a perspective view showing a conventional example. In the figure! ...Regulation member 3 ...Rod 4 ...Hinge part 5 ... - Wood retaining spring 6 ...G ring 9 ...・Positioning spring 10---・Positioning pin 11---Slide rail part 12---Regulation member guide shaft 13---Coil spring 14---Bearing In each figure, the same reference numerals indicate the same parts. part or equivalent

Claims (1)

[Scope of Claims] 1) A telescopic photographing distance setting mechanism that is installed in a photographing device that records images and assists in setting the photographing distance, and is configured so that it can also be used as a receiving antenna. A shooting distance setting mechanism featuring: 2) The photographing distance setting mechanism according to claim 1, wherein the telescoping photographing distance setting mechanism is provided with means for a photographer to regulate the length and direction in which it can be extended.