JPS604168Y2 - Strobe data display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to a data display device for a strobe, and more particularly to a data display device for an auto strobe that can switch the amount sold to at least two stages during automatic light adjustment.

Normally, in an auto strobe that can change the amount of product sold, the aperture value that should be set on the camera must be changed depending on the amount of product sold and the setting of film sensitivity. Calculating how many apertures to use is very complicated, making it extremely difficult and troublesome for ordinary operators to understand.

The purpose of this invention is to eliminate these drawbacks by making it easy to easily set the aperture value on the camera when changing the flash output amount or setting the film sensitivity in an auto strobe. The object of the present invention is to provide a strobe data display device that can be obtained.

Hereinafter, the present invention will be described in detail based on an illustrated embodiment.

FIG. 1 shows a strobe device 2 having a data display device 1 of the present invention attached to a camera 3.

The strobe device 2 attaches its mounting leg 2a to the hot shoe 3a of the camera 3, and connects the camera 3 mechanically and electrically.
In this state, the data display device 1 is connected to
The camera 3 is located on the back side, and the light emitting section (not shown) of the strobe device 2 is located on the front side of the camera 3.

On the surface of the strobe device 2 on which the data display device 1 is provided,
A fixed display board 4 is provided integrally with this surface, and on the right side there is a charging display window 5a, a power switch 6, and a light emission amount switching scale 7 for manual strobe, and on the left side. An auto strobe display window 5b, a light emission test button 8, and a sales volume switching scale 9 for auto strobe are provided.

On the top surface of the camera 3 to which the strobe device 2 is attached, in addition to the hot shoe 3a, a film advance knob 3b,
A shutter button 3c, a shutter dial 3d, and a film rewind lever 3e are provided, and the back of the camera 3 is provided with an eyepiece 3f.

As shown in FIGS. 2 and 3, a shaft 10 having a square shaft portion 10a at the tip is provided at the center of the fixed display board 4, and shafts 10 are provided at the left and right portions around the shaft 10. Centered arcuate long holes 11a and 11b and click stop leaf springs 12a and 12b are provided, respectively.

A manual guide number scale 13 is provided on the fixed display board 4 at a portion closer to the axis 10 than the manual flash output switching scale 7, and the automatic flash output switching scale 7 on the fixed display board 4 is provided with a manual guide number scale 13. In the part closer to axis 10 than 9,
An automatic aperture scale 14 is provided.

These scales 13, 14 are each provided in the shape of a circular arc centered on the axis 10.

With respect to the center point of the axis 10 of the fixed display plate 4, a manual aperture scale 15 and an auto distance scale 16 are located at S-symmetrical positions with respect to the scales 13 and 14.
It is arranged in an arc shape with the center at .

The shaft 10 of the fixed display board 4 configured in this way has a second
The first mask plate 17, the second mask plate 18, and the frictional coupling plate spring 19 shown in the figure are fitted in that order, and then the fixed shielding plate 20 is fitted to the square shaft portion 10a, and then the second mask plate 18 is fitted. A mask plate operating wheel 21 is fitted, and a set screw 22 is screwed onto the shaft 10.

As seen in FIG. 2, the first mask plate 17 has two operating parts 17a and 17b on its lower surface, and
When fitting these legs 17a and 17b into the elongated hole 11a
, 11b.

A switch changeover member 23 having an arbitrary configuration is fixed to the legs 17a, 17b, for example, as shown by the chain line.

On the upper surface of the hub 17c on the first mask plate 17, as shown in FIG. Screw holes 17f and 17g for fixing spring 19
is pierced.

Further, a protrusion 17h for preventing rotation of the second mask plate 18 is provided on the hub 17c.

Near the periphery of the upper surface of the first mask plate 17, a switching window 24 for switching between the auto aperture scale 14 and the manual guide number scale 13, and the auto distance scale are provided at S-symmetrical positions with respect to the axis thereof. 16 and a switching display window 25 for switching and displaying the manual aperture scale 15.

An operating section 26 for switching and operating the data display device 1 is formed on the periphery of the first mask plate 17 by knurling.

Further, on the upper edge of the switching window 24 of the first mask plate 17, there is a film sensitivity setting scale 27 that corresponds appropriately to the numerical scale of the automatic aperture scale 14 or the manual guide number scale 13. , is provided by fixing a scale plate 28 to the back surface of this first mask plate 17.

As shown in FIGS. 2 and 5, the second mask plate 18 has an arc-shaped notch 29 on the inner peripheral edge of its central opening, which fits into the protrusion 17h of the first mask plate 17. and
Further, on the opposite side of S, a numerical display window 30 is provided on the outer peripheral edge of the mask plate 17 to display one of the numerical values of the automatic aperture scale 14 or the manual guide number scale 13. There is.

The upper edge 30b of this window 30 is formed in the shape of an arrow, and indicates the numerical value appearing on this window 30.

The outer peripheral edge of the second mask plate 18 on the side opposite to the window 30 is cut off in an arc shape, and the auto distance scale 1
6 and the manual aperture scale 15 are formed.

Further, on the edge portion provided with this notch 31, a manual distance scale 3 corresponding to the manual aperture scale 15 is provided.
2 is a provision.

The plate spring 19 is constructed by fitting the second mask plate 18 into the huff 17c of the first mask plate 17, and then fitting the notches 19a and 19b into the protrusions 17d and 17e of the hub 17c, and then inserting the screw holes 19c and 19d into the notches 19a and 19b. and the screw holes 17f and 17g of the first mask plate 17 are aligned and screwed to the first mask plate 17.

Therefore, the second mask plate 18 is frictionally coupled to the first mask plate 17 by this plate spring 19.

A fixed shielding plate 20 is fitted into the square shaft portion 10a at the tip of the shaft 10 of the fixed display board 4.

This fixed shielding plate 20 1 covers the automatic distance scale 16 when the manual distance scale 32 (see FIG. 5) corresponding to the manual aperture scale 15 faces the automatic distance scale 16.

A second mask plate operating wheel 21 is further fitted onto the shaft 10 .

The operating wheel 21 is made of a transparent plastic material, for example, and has operating parts 21a and 21 on its lower surface that engage with the notched edges 18a and 18b of the second mask plate 18.
b is provided.

Finger rests 21c and 21d are provided on the upper surface portions corresponding to the operating sections 21a and 21b.

As described above, the first mask plate 1 is attached to the fixed display plate 4.
7. The second mask plate 18, the plate spring 19, the fixed shielding plate 20, and the second mask plate operating wheel 21 are fitted and are prevented from being removed by the setscrews 22, thereby configuring the data display device 1 of the present invention. There is.

An indicator 33 is provided on the operation section 26 of the first mask plate 17, and when switching between auto and manual by rotating the first mask plate 17, this indicator 33 is used to switch the amount of light emitted for manual use. Adjust it to the scale 7 or the automatic light emission amount switching scale 9.

Note that the manual scale 7 allows light intensity switching in two levels, and the auto scale 9 allows light intensity switching in three levels.

The strobe data display device 1 of the present invention is used as described below.

(4) Setting film speed.

When the operating wheel 21 is rotated by placing, for example, the index finger and middle finger on the finger rests 21c and 21d of the operating wheel 21, the operating wheel 2
1 rotates the second mask plate 18 with respect to the first mask plate 17.

The range of rotation is regulated by the relationship between the notch 29 of the second mask plate 18 and the protrusion 17h of the first mask plate 17, and is determined to match the range of the film sensitivity setting scale 27.

The film speed setting scale 27 shows 25 at ASA speed.
A numerical value from 1600 to 1600 (see FIG. 4) is displayed on the scale, and as the second mask plate 18 rotates, the numerical values are displayed one by one in the numerical display window 20.

Therefore, when a numerical value equal to the sensitivity of the film loaded in the camera 3 is displayed, the film sensitivity can be set by stopping the rotation of the second mask plate.

6 to 9 show the case where the film sensitivity is set to ASAloo.

(B) Auto manual selection Pinch the operating part 26 of the first mask plate 17 with your fingers, rotate it around the axis 10, and place the indicator 33 within the range of the auto flash output switching scale 9 to activate the auto strobe. If the manual strobe is selected and the indicator 33 is placed within the range of the manual flash amount switching scale 7, the manual strobe is selected.

Moreover, each of the light emission amount switching scales 9, 7 for auto and manual use is 1 high light emission scale 9a, medium light emission scale 9.
b. It is composed of 3 stages of low luminescence scale 9cJ, and the latter is composed of 2 stages of 1 high luminance scale 7a and low luminescence scale 7bJ, and the index 33 can be switched and set to 3 stages and 2 stages, respectively. .

On the lower surface of the first mask plate 17, as shown by dotted lines in FIG.
7m is provided, and the index 33 is on each scale 9at 9bt
9ct 7at 7b by switching, the springs 12a, 1 shown in FIG.
2b is inserted into one of the holes 17i=17m, and the first
Click and stop the mask board 17.

When the first mask plate 17 is rotated in this way and the index 33 is aligned with each scale 9at 9b* 9c, 7at 7b, the switch changeover member 23 (see FIG. 2) is adjusted accordingly.
switches a built-in electrical circuit (not shown).

One of the features of the present invention is that the electric circuit is automatically switched at the same time as the scale is set or switched.

Note that when the indicator 33 is placed on the auto flash amount switching scale 9, an electric circuit including a light receiving element (not shown) provided on the front of the strobe device 1 is turned on, and the flash duration of the strobe is determined. is controlled by this circuit.

When the indicator 33 is placed toward the manual light emission amount switching scale 7, the electric circuit including the light receiving element is turned off, and the simple strobe light emission circuit is turned on instead. The flash duration of the strobe is 1 high,
It will be a predetermined fixed time for two low yo steps.

(Reading data such as 0 aperture value.

(1) Figure 6 shows the indicator 33 and the auto low luminescence scale 9c.
The case is shown below.

At this time, the aperture value r4J is displayed in the numerical display window 30.

Therefore, with this, the aperture of the camera 3 is set to aperture value 14. You can set it to .

At this time, the switching display window 25 displays a message indicating that 'auto yo is selected' and a value of 10.5 to 8 on the auto distance scale 16.
The entire range of rn, that is, the range of photographable distance is rO65
~8 mJ is displayed.

Therefore, by operating the camera 3 to focus on a subject within this distance range, aligning the shutter dial 3d with the X contact point, and photographing, it is possible to perform photographing using an auto strobe.

(+*) Figure 7 shows the case where the indicator 33 is set to the automatic high luminescence scale 9a.

In this case, since the aperture value rgJ is displayed on the numerical display window 30, the aperture of the camera 3 can be set to an aperture value of 18J, and shooting can be performed with a narrower aperture than in the case of (i) above. .

It can also be seen that the switching display window 25 allows photographing in a distance range of r''0.5 to 4 mJ.

Note that in cases (i) and (ii), the manual distance scale 32 is covered by the fixed shielding plate 20.

0i1) FIG. 8 shows a case where the index 33 is set to the manual high luminescence scale 7a, and in this case, the manual guide number scale 1 is displayed on the numerical display window 30.
One of the numerical values 18 to 68 of 3, 134J, is displayed.

In addition, the switching display window 25 displays the numerical values 12.8 to 22 J out of the numerical values 11.4 to 22 J on the manual aperture scale 15 and the fact that the J manual mode has been selected.

At this time, the manual distance scale 32 (
1 of 10.5~l 5m J
Corresponding values are 1 to 15 mJ.

These indicate combinations of aperture value and photographable distance as factors of guide number 1341. If one of the combinations is selected and the camera 3 is operated in that manner, photographing will be performed based on the data.

(iv) FIG. 9 shows a case where the indicator 33 is aligned with the manual low luminescence scale 7b, and the numerical display window 30
A guide number 1171 is displayed.

Further, the aperture value of 11.4 to 11J is shown in the switching display window 25, and the manual distance scale 32 at this time is
It shows a value of 11 to 10 m.

Therefore, with the correspondence between the aperture value of 11.4 to 11J and the distance in the range of 11 to 1Qm, the guide number is 17. It is only necessary to select one of the combinations of factors and take an image.

As described above, according to this invention, the electric circuit is automatically switched in response to the selection and switching of the amount of light emitted by the auto strobe and manual strobe, and the various data associated with the switching is automatically performed. Since it can be read extremely quickly without the need for calculations, automatic and manual strobe photography can be performed easily and efficiently.

In addition, in the device of this invention, it is possible to interchange the setting points of each scale within a range that does not cause problems, and the first mask plate and the second mask plate are is rotatable, but when the first mask plate rotates, any means other than those in the embodiment may be used to connect the second mask plate to follow the rotation.

The means for driving the second mask plate relative to the first mask plate can also be freely selected.

Further, the number of steps for switching the amount of light emitted in automatic or manual mode can be arbitrarily set from one step to multiple steps as required.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a strobe device to which the data display device of the present invention is applied, which is attached to a camera, Fig. 2 is an exploded perspective view of the data display device showing an embodiment of the present invention, and Fig. 3
5 to 5 are plan views showing a fixed table plate, a first mask plate, and a second mask plate, respectively, and FIGS. 6 to 9 are plan views showing data display modes in the device of the present invention, respectively. 1...Data display device, 2...Strobe device, 3...Camera, 4...Fixed display board, 7...For manual Luminescence amount switching scale,
9... Auto light emission amount switching scale, 13...
...Manual guide number scale, 14...
...Aperture scale for auto, 15...Aperture scale for manual, 16...Distance scale for auto, 17.
...First mask board, 17a, 17b...Bending operation leg, 18...Second mask board, 2o, bending/fixed shielding plate, 21...Second mask board Operation wheel, 23...Curve switch switching member, 24...Switching window, 25...
Song switching display window, 26... Operation section, 27...
... Scale for setting film sensitivity, 30 ... Numerical display window, 31 ... Notch on second mask plate, 32 ...
...Manual distance scale, 33...Indicator.

Claims (1)

[Scope of Claim for Utility Model Registration] In an auto strobe capable of switching the amount of light emitted during automatic flash control into two or more levels, a fixed display board provided with an auto flash amount switching scale 9 and an auto aperture scale 14. 4, and a switching window 2 for exposing the auto aperture scale 14.
4 and a film sensitivity setting scale 27, the first mask plate 17 is interlocked with a switching means for changing the amount of light emitted in stages, and is rotatable with respect to the fixed display plate 4; a second mask plate 18 having a numerical display window 30 that exposes only one film sensitivity value of the film sensitivity setting scale 27 and one aperture value of the auto aperture scale 14 corresponding to this film sensitivity value; a spring member 19 that suppresses the second mask plate 18 so as to apply a constant frictional force to both the first mask plate 17 and the second mask plate 18; A data display device characterized in that a corresponding aperture scale can be checked in accordance with a setting operation, and a first mask plate 17 and a second mask plate 18 can be rotated together.