JPS604170Y2 - Auto exposure camera shooting mode switching device - Google Patents

Description

[Detailed Description of the Invention] There are various photographing modes for cameras, and a more convenient camera has been proposed by providing several types of photographing modes to a model to expand its photographing functions.

Such a camera is very easy to use if it has a display that allows the user to instantly determine the shooting mode selected.

The present invention proposes a rational arrangement of selective photographing modes for a camera that has three types of photographing modes: aperture-priority type, shutter-priority type automatic exposure adjustment, and manual exposure adjustment.

Examples of the present invention will be described below.

In FIG. 1, on the surface of the shutter dial 1 are written the letters ES, which expresses aperture-priority automatic exposure adjustment, and the letters ``shutter speed'', which is set according to the photographer's intention.

A portion of the shutter dial is provided with a protrusion 1a.

A transparent window 4 is adhesively fixed to a window frame 3 provided in a part of the outer case 2 of the camera.

A display board 6 is fixed to a shaft 5 concentric with the shutter dial 1 so as to be rotatable across the outer case 2 of the camera, and an index mark is written on the display board 6.

Further, an A-M display plate 7 is rotatably provided on the shaft 5 to display whether automatic exposure adjustment or manual exposure adjustment is selected, and a protrusion 5a is provided to engage with the protrusion 1a of the shutter dial. be.

FIG. 2 shows a case where the shutter dial 1 is set to aperture priority automatic exposure adjustment.

At this time, the projection 1a of the shutter dial is the projection 5 of the shaft 5.
a, the display plate 6 is rotated against the spring 8, and the positional relationship of each member is configured so that the index mark 4 is displayed.

The shutter dials have stoppers on both ES and 1BJ.

Next, on the A-M display board 7, the letters EE indicating shutter-priority automatic exposure adjustment and MANU indicating manual exposure adjustment are displayed.
The A-M display board is located behind the display board 6 with respect to the window 4.

One end 7a of the A-M display board is exposed outside the camera case, and when automatic exposure adjustment is selected and the camera is set at position A marked on the camera case, the E-M display board is intentionally set at position 4. When manual adjustment is selected and the M position is set, the MANU character is positioned.

Therefore, when the shutter dial 1 is set to the aperture-priority automatic exposure adjustment (ES), the mark 6 on the display board 6 appears on the screen 4 and is located behind it.

The A-M display board is not visible.

When the shutter dial 1 is set from ES to the manually selected shutter speed range, the protrusion 1a rotates to the right in FIG.

Therefore, the window will look like this:

When automatic adjustment is selected, the letters EE representing shutter-priority automatic exposure adjustment are displayed, and when manual exposure adjustment is selected, the letters MANU are displayed.

On the other hand, the circuit switching is configured as described below.

In Fig. 2, at the A position of the A-M display board 7, at the ONXM position
A single-pole, double-throw 5 WES-EE with SWA-MIO as FF and a shutter dial that switches to the ES side when in ESS mode and to the EE side when in manual adjustment selection speed.
II is provided, and the connection with the circuit block is as shown in FIG.

Therefore, if you set shutter dial 1 to ES,
Regardless of the SWA-MIO position, aperture-priority automatic exposure adjustment will be used.When the shutter dial is set to the manual selection shutter speed range and the A-M display board is set to A, shutter-priority automatic exposure adjustment will be performed. Then,
When set to M, exposure will be adjusted manually.

FIG. 4 shows the display format when set to each shooting mode of the present invention.

During aperture-priority automatic exposure adjustment, an index mark is displayed on window 4 regardless of A-M switching, during shutter-priority automatic exposure adjustment, the character EE is displayed on the window, and when manual exposure adjustment is performed, MANU is displayed on the window. represents a character.

As described above, according to the present invention, the shooting mode is clearly displayed, and there is no danger of the photographer making a momentary mistake in judgment.
It has excellent effects.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an embodiment of the present invention. FIG. 2 is a plan view of an embodiment of the present invention. FIG. 3 is a circuit block diagram of an embodiment of the present invention. FIG. 4 is a display format diagram of each shooting mode according to the present invention. 1...Shutter dial, 4...Camera outer frame window, 6...Display board, 7...A-M
Display board, 7a...Switching member, 10...
SWA-M, 11...SWES-EE0

Claims (1)

[Claims for Utility Model Registration] A shutter dial 1 with a symbol representing aperture-priority automatic exposure adjustment and letters indicating shutter speed on the surface, and a shutter fixed to a shaft 5 concentric with the shutter dial 1 and a shutter on the surface. A display board 6 with a symbol indicating the set state of the dial 1, and a display board 6 that is rotatable on the shaft 5 and
The A-M display board 7 has a symbol representing shutter-priority automatic exposure adjustment and a symbol representing manual exposure adjustment on its surface. It is located in a position evacuated from the window 4 provided in the outer case of the camera by a biasing member such as
When the shutter dial 1 is set to aperture-priority automatic exposure adjustment, the protrusion 1a provided on a part of the shutter dial 1 and the protrusion 5a of the shaft 5 engage, and the shaft 5 rotates. The A-M display board 7 is linked with the switching operation of the switching member 7a between shutter priority automatic exposure adjustment and manual exposure adjustment,
When the switching member 7a is switched to shutter-priority automatic exposure adjustment, the symbol representing the shutter-priority automatic exposure adjustment is placed facing the window 4, and when it is switched to manual exposure adjustment, the symbol representing the shutter-priority automatic exposure adjustment is placed facing the window 4. A symbol representing exposure adjustment is placed facing the window 4, and when the shutter dial 1 is not set to aperture priority automatic exposure adjustment and the display board 6 is retracted from the window 4, the A-M display facing the window 4 is displayed. A photographing mode switching device for an automatic exposure camera, characterized in that the symbol on the plate 7 is visible from the outside.