KR930005435Y1 - Camera - Google Patents

Abstract

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Description

Camera whose camera lens automatically returns to its normal position when not in use

1 is a perspective view seen from the right front when applied to the camera-integrated VTR according to the present invention.

2 is a perspective view seen from the front left.

3 is a perspective view from right rear.

4 is a perspective view of the body only from the right rear.

5 is a perspective view of only the grip portion seen from the left rear.

6 is a partial cross-sectional view of a portion showing the engagement state of the body and the gripping portion.

FIG. 7 is a diagram illustrating a state when looking into the optical viewfinder. FIG.

8 is a schematic perspective view showing the relationship between the dust cover and the lens of the camera unit.

9 is a control circuit diagram for a computer.

* Explanation of symbols for main parts of the drawings

1 body 2 holding part

3: body case 4: gripping case

5: camera portion 6: VTR portion

9: dust cover 12: optical viewfinder

20; Hook 31: Optical Mode Display

34: light section 45: link

The present invention relates to a camera most suitable for application to a camera integrated VTR.

When the dustproof cover for the lens of the optical system switched to wide angle, standard, telephoto, etc. is closed to cover the front of the lens, the dust cover allows the link to rotate to the neutral position, so that the lens is always in use when not in use. The image is returned to the standard state, and therefore, at the time of subsequent imaging, the image is always taken in the standard state even if a camera is used unintentionally.

In the camera, the original optical system and the optical system of the viewfinder are configured almost in common in most cases, and except for the finder, the subject image to be originally photographed can be known. That is, it is determined whether the wide-angle state is a standard state or a telephoto state.

However, it is considered that the camera is configured with a simpler type, and therefore, the original optical system is set to three-stage switching of wide angle, ryojun, and telephoto as described above, and the original focusing configuration for the finder.

In such a configuration, if the camera is photographed continuously, the photographer remembers the state of the optical system of the camera at present, and the focus can be switched from time to time. This is often forgotten. Therefore, there is a problem in that the focus may be out of alignment when the lens is used at a wide-angle or telephoto (that is, john focus position) other than the standard when used again.

When the dust cover of the lens configured for focus switching is opposed to the lens, that is, when the cover is closed, the link is operated by the dust cover, thereby moving the lens focus switch lever to the neutral position, that is, the standard position of the lens system. It was.

Therefore, once the lid is closed, the lens is necessarily switched to the standard position, so that the focus is not blurred.

Next, the case where it is applied to the camera integrated VTR by this invention is demonstrated.

Camera integrated VTR according to the present invention will be described for the case applied to the body (1) and VTR.

The camera-integrated VTR according to the present invention is constructed by separating the body 1 and the gripping portion 2, and the cases 3 and 4 together with 1 and 2 are formed of synthetic resin. Therefore, the body case 3 is formed in a substantially rectangular parallelepiped shape, and the holding case 4 also forms an almost rectangular parallelepiped shape. It is made of curved surfaces that go well together.

In the body case 3, the camera part 5 and the VTR part 6 are accommodated, respectively, and are opposed to the quadrangular window hole 8 formed in the upper part of the front surface 3a of the body 3 again. The window frame 47 is fixed to the position slightly receding from the front surface 3a, and the objective lens 7 of the camera portion 5 extends from the window frame 47a formed on the window frame 47 to the outside. Thus, the dustproof cover 9 is fixed to the rear surface side of the front surface 3a so as to be free to slide up and down by a suitable means, and the upper edge thereof is the window hole of the front surface 3a. In (8), it slightly protrudes outward and becomes the handle 10 of the cover 9. In addition, as shown in FIG. 1, the cover 9 has two sliding states, i.e., a state in which the cover is opened, and a lid, in an open state, and as shown in FIG. It remains in the form of a click at the location.

The cover 11 is fixed so as to have the same contour as the body case 3 from the upper surface 3c of the body case 3 to the concave side 3e, which is the hinge of the lower edge of the body case 3. ) Is rotated freely and the tape cassette firewood (not shown) can be detachably attached to the cassette mounting portion (not shown) of the VTR section 6 while the lid 11 is open. It is composed.

On the other hand, in the holding part 2, the optical viewfinder 12 is woven in the upper part in the holding case 4. 13 is an objective lens, which extends outward from the window hole 14 formed in the upper portion of the front surface 4b of the gripping case 4.

Thus, the eye cap 15 formed of an elastic material is fixed to the upper end of the rear face 4b of the holding case 4, and the voltage lens (not shown) is fixed thereto, and thus the objective lens 13 An optical system is formed between the eyepieces, and the optical beam viewfinder 12 is configured. The optical viewfinder 12 is completely independent of the optical system by the objective lens 7 of the camera unit 5 described above.

In the holding case 4, the battery 16 is detachably stored. Reference numeral 17 denotes an entrance and exit of the battery 16 and is formed on the front surface 4a of the holding case 4. In addition, in the state which picked up the battery by this, the cover 18 (refer FIG. 2) is provided so that this door 17 may be closed. When storing a battery, it pushes the cover 18 from the front end, and it opens it inside. The cover 18 is configured to automatically rise and close the doorway 17 by pushing over and extracting the battery. In addition, in FIG. 2, the cover 18 has shown the halfway state of the ups and downs. In addition, the band 19 is fixed to the holding case 4 so as to face the right side surface 4f, and the imager puts the rainwater between the band 19 and the holding case 4 to hold the holding case 4. ) Is supposed to be held.

The right side 3f of the body case 3 and the left side 4e of the gripping case 4 serve as coupling sides in which both of them face each other, and coupling means are formed on each of these surfaces.

4 and 5, the hook 20 having an L-shape at various places (four places in the drawing) faces forward on the right side surface 3f of the body case 3, respectively. On the other hand, the left side 4e of the gripping case 4 is provided with a concave portion 21 facing the hooks 20 described above, and is continuously connected to the concave portions 21 again. Engaging recesses 22 are formed to advance the grip case 4 forward.

Thus, when the hook 20 of the body case 3 is now inserted into each recess 21 of the grip case 4, the right side 3f of the body case 3 and the left side of the grip case 4 ( 4e) is in close contact with each other, and in this state, the tip of each hook 20 is inserted into the engagement recess 22 in each recess 21 by shifting the body case 3 forward. Both 3 and 4 are coalesced. That is, the body 1 and the gripping portion 2 are coalesced.

In order to lock in this coalescing state, the locking means as described below is provided. That is, in FIG. 3, as shown in FIG. 5, a lever 23 capable of sliding in the left and right directions is fixed to the rear surface 4b of the holding case 4, and as shown in FIG. The tip end of the gripping piece 25 connected to the spring 24 protrudes in the concave portion 21, so as to prevent movement (sliding) in the hook 20 portion 21 with the gripping piece 25. Consists of.

Therefore, in the union of the body case 3 and the holding case 4, when the hook 20 enters into the indentation 21, the locking piece 25 retreats against the spring 24, and As shown in FIG. 6 again, once the hook 20 enters into the engagement recess 22, the locking piece 25 protrudes into the recess 21 to lock the hook 20. As shown in FIG. Such locking means 26 may be provided in any one recess 21.

In the state of FIG. 6, in a state in which the lever 23 is swung in the opposite direction to the body case 3 against the spring 24, the body case 3 is relatively displaced to the rear so that 3 and 4 are mutually shifted. Can be separated.

In addition, a plurality of electrical contacts 27 made of a metal plate are formed on the above-described coupling side, that is, the right side 3f of the body case 3, and on the left side 4e of the gripping case 4, A plurality of electrical contacts 28 composed of conductive pins are fixed opposite to the contacts 27. When 3 and 4 are combined as described above, the contacts 27 and 28 are in electrical contact with each other. The power supply current is applied to the camera unit 5 and the VTR unit 6 in the body case 3 from the battery 16 in the holding case 4, respectively. In addition, the rear side 4b of the gripping case 4 has a push button 30 for a tringer switch, in which a signal is supplied to the body 1 through any of the contacts 27 and 28 described above. It is. In practice, this push button 30 is in a standby state by the first push of the maximum, the tape travels by the second push, and recording is performed.

On the right side 3f (coupling side) of the body case 3, as shown in FIG. 4, an optical mode display unit 31 composed of a plurality of light emitting elements (four in this example) is provided. On the other hand, on the left side 4e (engagement side) of the gripping case 4, as shown in FIG. 5, the light intensity portion 34 is disposed at a position opposite to the optical mode display portion 31 of the body case 3 described above. Formed.

That is, a plurality of (4 in this example) window holes 32 are provided to face each light emitting element of the optical mode display unit 31, and the rectangular mask 33 is positioned at the focal position in the optical system of the optical viewfinder 12 again. ) Is arranged (see FIG. 3), and the light conduit 35 (optical fiber) made of plastic or glass is provided between the four corner portions of the mask 33 and each of the window holes 32 described above. It is. That is, one end of the light conduit 35 is fitted into the window hole 32 so that its cross section is directly opposed to the optical mode indicator 31 of the body case 3, and formed at four corners of the other word mask 33. It fits in the window hole tightly. 7 shows an example of an image when looking into the viewfinder 12, outside the viewing frame 36 of the mask 33, where the cross section of each light pipe 35 is located.

Therefore, when the light emitting elements such as the LEDs constituting the optical mode display unit 31 of the body 1 are turned on by the state of each mode of the camera unit 5 and the VTR unit 6 in the body 1, the lighting is turned on. Each is displayed in the optical viewfinder 12.

Next, an example of mode display will be described. However, in order to avoid the explanation, in Fig. 7, reference numerals (a) to (d) are indicated.

First, (a) is turned on in a room lamp when the color temperature is low as in imaging. In this case, the color filter in the optical system may be switched in the camera section 5 in the body 1. 37 shown in FIG. 2 displays this switching lever and slides up and down. (b) shows the standby state. That is, when the above-mentioned push butter 30 is pushed once, b turns on. When the push button 30 is pushed again, b turns off and c lights up to indicate that it is an imaging card (recording card). d indicates a light shortage condition. In this case, lighting is enough. Incidentally, in the body 1, the means for displaying the above-described respective modes of the camera unit 5 and the VTR unit 6 with the respective light emitting elements in the optical mode display unit 31 is known and the detailed description thereof is omitted. do. Moreover, as these light emitting elements, those with different colors may be used.

In the body 1, the camera unit 5 is adapted to switch to the three positions of telephoto, standard and wide angle while retracting the objective lens 7 forward. The forward retreat of the lens 7 stores the tilt 38 in a screw groove 39 formed on the outer circumferential surface of the tilt 38 of the lens 7 and guides it back and forth as shown in FIG. The projection (not shown) which protrudes on the inner surface of the fixing cylinder is engaged, and as shown in FIG. 2, the focus of sliding up and down on all of the left side 3e of the body case 3 is shown. A switching lever 40 is provided, and as shown in FIG. 8, a part of the connecting plate 41 fixed to the rear of the switching lever 40 extends in front of the tilt 38, and this extension With respect to the cut portion 43 formed in the portion 42, the projections 44 projecting on the front surface of the tilting wheel 38 are engaged, and thus the tilting wheel 38 is moved by the upper, middle, and lower sliding motions of the switching lever 40. ) Retreats forward, and the optical system of the camera unit 5 is in a wide angle, standard, and a telephoto state.

The lower side of such a hardness 38 is provided with a link 45, which is connected to the rear of the window hole 8 of the body case 3 via the shaft 46 and the window frame 47 (this The window frame 47 is fixed to swing freely with respect to the rear surface of the window (shown in FIG. 1). Thus, one end of the link 45 is bent, and is lightly engaged with the through hole 42a of the extension portion 42 of the bent portion 45c to which the bent portion 45c is connected, and the switching lever 40 is neutral. When in the (standard) position, the link 45 is almost horizontal, as shown by the solid line in FIG.

On the other hand, as shown in FIG. 8, the joining parts 48a and 48b are formed in the dustproof cover 9 at the lower left and right sides, and the dustproof cover 9 slides upwards, and FIG. When the front of the lens 7 is shielded as shown in Fig. 2, these joining portions 48a and 48b are in contact with each other at the lower left and right ends 45a and 45b of the link 45, respectively. Or face each other with a slight gap.

Therefore, when the switch lever 40 is swung upward from the standard (neutral) position, it is in a wide angle state, and the link 45 is inclined as indicated by a dashed line. Therefore, when the cover 9 is closed in this state, the fitting portion 48a is brought into contact with the lower end 45a of the link 45, and is rotated to an almost horizontal position shown by the solid line. As a result, the connecting plate 41, that is, the switching lever 40, returns to the neutral position, that is, the lens 7 also returns to the standard position.

In addition, when the switch lever 40 slides downward in the state where the cover 9 is open, the link 45 is inclined in the reverse direction as described above, and the telephoto lever is in a telephoto state. When the cover 9 is closed in this state, the joining portion 48b abuts against the lower end 45b of the link 45, and returns the link 45 to a substantially horizontal state. That is, the switching lever 40 returns to the neutral position.

Thus, the optical system of the camera part 5 can be set to a standard state by closing the unused cover 9, and therefore, imaging is performed in a standard state unless the switching lever 40 is operated at the time of subsequent imaging. Done.

In the body case 3, as shown in FIG. 8, the cover open detection switch 50 is fixed in the lower part of the dustproof cover 9, and this switch 50 is opened in the cover 9 opened state. Is for example turned on.

This switch 50 is connected in series with each other switch 51a, 51b, 51c ... as shown in FIG. These switches 51a and 51b are, for example, a switch for detecting tape erasure prevention, an operation switch by the push button 30 described above, and the like. Thus, the DC power supply terminal 52 is grounded through the resistor 53 and the series circuits of the switches 50, 51a, 51b, ..., 151n described above, and the series circuit and resistor of each switch. The connection point with 53 is connected to the control terminal 55 of the computer 54. The computer 54 controls various kinds of operations of the camera unit 5 and the VTR unit 6, and does not operate when a DC power source (voltage) is added to the control terminal 55.

Therefore, when each switch is all turned on, that is, when all the recording conditions are satisfied, the control terminal 55 of the computer 54 becomes the ground potential, and the computer 54 is brought into an operating state.

According to the above-described proposal, in the camera portion 5 of the body 1, when the shooting (imaging), the switch lever 40 is operated and used in a wide angle or telephoto state other than the standard position, and then the dust cover ( By closing 9), the lens of the camera portion is automatically returned to the standard position, and therefore, has a feature of not causing a deviation in focus even if the switching of the switching lever 40 is forgotten during subsequent imaging. Therefore, as in the above embodiment, in particular, when the optical system of the body 1 and the optical system of the viewfinder are completely separate, the state of the optical system on the body side is not convenient.

Claims (1)

In the state of sliding the dust-proof cover 9 which covers the front of the lens to the front surface of the lens 7, the link 45 which brings the focus switching lever 40 of the lens to the neutral position is A camera in which the camera lens automatically returns to its standard position when not in use.