JPH09274238A - In-finder display system and image pickup device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To display much information in a screen by possessing a 1st display means performing in-finder display and a 2nd display means performing the in-finder display at a position different from the display position of the 1st display means and providing 1st and 2nd driving circuits driving the display means and a contact part for them. SOLUTION: As for the display mechanism of the camera, the 1st display means 23 performing the display within finder and the 2nd display means 12a to 12c performing the in-finder display at the position different from the display position of the means 23 are provided. Then, the 1st driving circuit 102 driving the means 23 and the 2nd driving circuit 101 driving the means 12a to 12c are provided. Furthermore, the contact part electrically connecting the means 23 with the circuit 102 is provided under the means 12a to 12c. Therefore, the voltage of the circuit 102 is impressed on contact fittings 26a to 26e through contact pins 14a to 14e, so that the constitution is simplified. Then, much information can be displayed without making the device large.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a viewfinder display system for performing a viewfinder display and an image pickup apparatus.

[0002]

2. Description of the Related Art Conventionally, it is known that photographic information is displayed in a finder of a camera so that the photographic information can be visually recognized at the same time as a subject image prior to photographing. In this type of camera, a camera that is displayed inside the viewfinder and inside the shooting screen and a camera that is displayed outside the shooting screen are known.

On the other hand, there is also known a camera in which the finder portion of the camera can be attached and detached and the finder and the screen can be exchanged according to the purpose of photography.

[0004]

However, as the functions of cameras have become more sophisticated in recent years, there has been a great variety of photographic information displayed in the viewfinder, and the photographic information can be displayed both inside the finder and outside the photographic screen. Need to display.

On the other hand, in the camera in which the viewfinder and the screen can be exchanged as described above, the method of arranging the display mechanism section on the camera body side is used so that the photographing information can be displayed even if the viewfinder and the screen are exchanged. To be When the shooting information can be displayed both inside and outside the screen by using such a method, the mechanism becomes complicated and large, and as a result, the camera becomes large. .

The present invention has been made in view of the above problems, and it is an object of the present invention to display a large amount of photographing information inside and outside a photographing screen without increasing the size of the camera.

[0007]

In order to achieve this object, a first invention is an in-finder display system comprising an image pickup device and a finder screen device detachable from the image pickup device. The apparatus has a first display means (23) for displaying in the finder, and the imaging apparatus has a second display means (12) for displaying in the finder at a position different from the display position of the first display means.
a to 12c), a first drive circuit (102) for driving the first display means, a second drive circuit (101) for driving the second display means, and a first drive circuit (102) provided below the second display means. The display device is provided with a contact portion that electrically connects the first drive circuit.

A second aspect of the invention is an image pickup apparatus having a first finder screen device (23) for displaying in the finder, wherein a screen device for the finder is detachable, and the finder screen is located at a position different from the display position of the first display device. Second display means (12a to 12c) that performs inner meaning, a first drive circuit (102) that drives the first display means, a second drive circuit (101) that drives the second display means, and a second display It has a contact portion provided below the means and electrically connecting the first display means and the first drive circuit.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of a display system in a finder and an image pickup apparatus according to the present invention. FIG. 2 shows a partially enlarged view of FIG. FIG. 1
2 and FIG. 2 both show a screen 21 on the camera body 11.
Also, the viewfinder 1 is attached. FIG. 3 is a perspective view showing the arrangement of each member when the present invention is carried out.

In FIG. 1, a pentaprism 2 is provided in the finder 1, and a transmissive surface 2a is formed on the bottom side surface of the pentaprism 2 by obliquely cutting it. The prism 3 is arranged so as to face the transmission surface 2a. The prism 3 is provided with an incident surface 3a which is a transmission surface, an emission surface 3c, and a reflection surface 3b on which a reflection film is formed by vapor deposition or the like (see FIG. 2). A display opening 1a is provided below the finder 1 adjacent to the entrance surface 3a. It should be noted that, without forming a reflective film on the reflective surface 3b, it is a transmissive surface like the other two surfaces, and a reflective member such as a mirror is provided below the prism 3 in parallel with the reflective surface 3b to provide a reflective effect. Also, almost the same effect can be obtained.

As shown in FIG. 3, the camera body 11 is provided with LEDs 12a to 12e. LED1
2a to 12e are connected to the first drive circuit 101 in the camera body 11 and can be turned on or off. The display window 13 (FIG. 2) is provided adjacent to the LEDs 12a to 12e, and the LED of the display window 13 is provided.
Light-shielding portions and pattern-shaped light-transmitting portions 13a to 13c indicating photographing information are printed on the surfaces 12a to 12e.

A case where the LEDs 12a to 12e are turned on will be described.

The information light emitted from the LEDs 12a to 12e passes through the light transmitting portion of the display window 13, enters the opening 1a of the finder 1 and reaches the prism 3. Further, the information light passes through the entrance surface 3a of the prism 3, is totally reflected by the exit surface 3c to reach the reflection surface 3b, is reflected by the reflection surface 3b, passes through the exit surface 3c, and is the transmission surface of the pentaprism 2. 2a
It is configured to be visible through the eyepiece of the finder 1.

The screen 21 (FIG. 1) is provided with a focusing plate 22 for forming a subject image, an electric display element 23 adjacent to the focusing plate 22, and a condenser lens 24. The electric display element 23 is of a type in which, for example, a liquid crystal display element, an electrochromic element, or the like is provided with a segment of a pattern shape showing a photographing information on a transparent glass plate, and the segment is turned on by applying a voltage. . An electrode (not shown) for applying a voltage to the segment is arranged at the end portion 23e of the electric display element 23. On the side surface portion 21a of the screen 21, substantially U-shaped contact fittings 26a to 26e are provided. The ends 28a to 28e of the contact fittings 26a to 26e are kept electrically connected to the electrodes by the elastic conductive member 27.

Contact metal fittings 26a-2 of the camera body 11
Contact pins 14a to 14e are provided at positions facing 6e, and the contact pins 14a to 14e are connected to the second drive circuit 102 inside the camera body 11 via the biasing spring 15.

When the segment on the electric display element is turned on, a voltage is output from the second drive circuit 102 and applied to the contact fittings 26a to 26e via the biasing spring 15 and the contact pins 14a to 14e. It Further, the voltage is applied to the segment via the elastic conductive member 27 as described above.

In the structure described above, the LEDs 12a ...
Although three 12e are arranged in the present embodiment, the same effect can be obtained with one LED or with a plurality of LEDs arranged in parallel. Further, the same effect can be obtained by arranging an electric display member having a segment arranged on a transparent glass plate instead of the LED, such as the electric display element 23.

Further, regarding the electric display element 23, the present embodiment has taken an example of the case where the number of segments is 5, but as in the case of the LEDs 12a to 12c, one or a plurality of segments may be provided. The number of contact pins and the number of contact springs may be set according to the number of segments, and the second display drive circuit 102 may be used to selectively turn on, blink, and turn off.

Further, in this embodiment, the camera body 11
Inside the first drive circuit 101 and the second drive circuit 10
Although two drive circuits (2) are provided, it is also possible to control the segments on the LEDs 12a to 12c and the electric display element 23 by one drive circuit. First
The second drive circuit may be interlocked with each other to turn on, blink, or turn off the displays showing the same content.

[0021]

As described above, according to the display mechanism of the camera of the present invention, the first display means (23) for displaying in the viewfinder and the display in the viewfinder at a position different from the display position of the first display means. Second display means (12a-12)
c) and a first drive circuit (10) for driving the first display means.
2) and a second drive circuit (10) for driving the second display means.
1) and a contact portion which is provided below the second display means and electrically connects the first display means and the first drive circuit to each other, so that the photographing screen can be realized without enlarging the camera. It is possible to display a lot of shooting information inside and outside the shooting screen.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a display system in a finder and an image pickup apparatus according to the present invention.

FIG. 2 is a cross-sectional view showing an embodiment of the in-finder display system and the image pickup apparatus according to the present invention.

FIG. 3 is a perspective view showing an embodiment of a display system in a finder and an image pickup apparatus according to the present invention.

[Explanation of symbols]

 1 Finder 1a Display Aperture 2 Penta Prism 2a Transmission Surface 3 Prism 3a Incident Surface 3b Reflection Surface 3c Exit Surface 11 Camera Body 12a LED 13 Display Window 13a Light Transmission Part 14a Contact Pin 15 Energizing Spring 21 Screen 21a Side Part 22 Focus Plate 23 Electric Display Element 23e End 24 Condenser Lens 26a Contact Metal Fitting 27 Elastic Conductive Member 28a End 101 Drive Circuit 102 Display Drive Circuit

Claims (3)

[Claims] 1. A viewfinder display system comprising an image pickup device and a viewfinder screen device detachable from the image pickup device, wherein the viewfinder screen device has a first display means (23) for displaying in the viewfinder. The image pickup device includes: second display means (12a to 12c) for performing in-viewfinder display at a position different from the display position of the first display means; and a first drive circuit for driving the first display means. (102)
And a second drive circuit (101) for driving the second display means
And a contact portion that is provided below the second display means and electrically connects the first display means and the first drive circuit to each other. 2. An image pickup device having a first finder screen device for displaying in the finder, wherein a screen device for the finder can be attached and detached, wherein the finder display device is located at a position different from the display position of the first display device. Second display means (12a to 12c) for performing the above, and a first drive circuit (102) for driving the first display means.
And a second drive circuit (101) for driving the second display means
And an contact portion provided below the second display means for electrically connecting the first display means and the first drive circuit. 3. The display device according to claim 1, wherein the first display unit displays inside the photographing screen, and the second display unit displays outside the photographing screen. The imaging device described.