JP2001242505A - In-finder display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an in-finder display device for making a phosphor more brightly emit light in order to make display by dark field illumination of in- finder display brighter. SOLUTION: The device is provided with a phosphor 3 which is formed to a prescribed planar shape, and a light shielding member 4 arranged in an overlaid state so as to store the phosphor 3, and the surface on the phosphor 3 side of the light shielding member 4 is made a good light reflection surface 4a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device in a finder such as a camera, and more particularly to a display device in a finder which looks bright even in dark field illumination.

[0002]

2. Description of the Related Art In a conventional display device in a finder, in the case of dark field illumination, a light emitting member such as a phosphor is illuminated by an LED or the like, and a predetermined display is made using light emitted from the light emitting member and its scattered light. I have. At this time, for example, as shown in FIG. 3, a light-emitting member 13 having a predetermined planar shape and a light-shielding member 14 arranged so as to overlap with the light-emitting member are provided, and the light-emitting member 13 is illuminated by the LED 15 or the like. .

[0003]

However, when the object viewed through the viewfinder is dark, the display unit can be clearly recognized, but when the object viewed from the object side is bright, the display by the light emitting member in the viewfinder becomes invisible. There was a problem. SUMMARY OF THE INVENTION It is an object of the present invention to provide a display device in a finder which makes the light emission by a phosphor more bright so that the display of a cross line or a target mark used for the display in the finder or the like can be easily viewed by dark field illumination.

[0004]

In order to achieve the above object, a display device in a finder according to the present invention comprises a light-emitting member having a predetermined planar shape and a light-shielding member which is disposed so as to overlap with the light-emitting member. And the surface of the light shielding member on the light emitting member side is a good light reflecting surface.

[0005] According to the above configuration, the reflected light from the light reflecting surface is added to the light emitted from the light emitting member, so that the display in the viewfinder can be seen well even when the object being viewed is bright.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a display device in a finder according to the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a schematic configuration of a display device in a finder according to the present invention. FIG. 2 shows an example of display in the viewfinder. Here, as shown in FIG. 2, the camera is a single-lens reflex camera, and a light-emitting member and a light-shielding member are formed in a focus area in a finder, so that, for example, a display unit 10 or the like of a distance measurement area can be configured. it can.

In FIG. 1, incident light from an objective lens system 1 forms an image on a display glass 2, and transmitted light is observed as a finder image via an eyepiece 6. Here, a flat phosphor 3 is accommodated in a concave portion provided on the eyepiece side of the display glass 2. On the surface of the concave portion, a light shielding surface for shielding incident light from the objective lens system 1 and a favorable light reflecting surface 4a for reflecting light emitted from the phosphor 3 toward the object side are formed. .

As a specific example, a light reflecting paint or an aluminum vapor-deposited film 4 is formed in a recess for accommodating the phosphor 3, and the phosphor 3 is illuminated by an LED 5 to emit light to the object side of the phosphor 3. The light is reflected and scattered by the light reflecting paint or the aluminum vapor-deposited film 4 formed in the concave portion. Further, since the incident light from the objective lens system 1 is shielded by the light shield, the display becomes more visible.

Accordingly, the light reflected from the light reflecting surface is added to the light emitted from the light emitting member, and the incident light from the objective lens system 1 is shielded by the light shielding body, so that the illumination light amount of the LED or the like to the more eye side. The illumination light can be recognized more clearly, and the display in the viewfinder can be clearly seen even when the object being viewed is bright. Here, a good light reflecting surface is formed by applying a member having high reflectivity such as metal, particularly aluminum.

[0011]

As described above, the display device in the finder according to the present invention makes the phosphor emission brighter, and makes the display by the dark field illumination bright and easy to see.

[Brief description of the drawings]

FIG. 1 is a side view showing a schematic configuration of a display device in a finder according to the present invention.

FIG. 2 is a diagram showing an example of display in a finder.

FIG. 3 is a side view showing a schematic configuration of a conventional display device in a finder.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Objective lens system 2 Display glass 3 Phosphor 4 Aluminum vapor deposition film 5 LED 6 Eyepiece

Claims (1)

[Claims] 1. A light-emitting member having a predetermined planar shape, and a light-shielding member arranged so as to house the light-emitting member, wherein a surface of the light-shielding member on the light-emitting member side has good light reflection. A display device in a viewfinder, which is a surface.