JPH0282229A - In-finder display - Google Patents

Abstract

PURPOSE:To perform in-finder display always sharply by arranging an elastic member so that it fills a space which is an adjusting section by means of the adjusting mechanism of a display member. CONSTITUTION:The elastic member to which a spongelike material is used fills a space, and the position for the field view of the in-finder display can be adjusted by the use of it. The elastic member 15 has the hole of such a size that a cover 13 is accommodated in it; display appears in a cylindrical part 5. The elastic member 15 is attached to the entire periphery of notched part 5a of the cylindrical part 5 with such as a double-sided adhesive tape. For the circular arc 5b at the corner of the notched part 5a, the elastic member 15 is attached to the notched part 5a without space. Thus, the in-finder display can appears always sharply since a position for the finder optical axis of a display means is adjusted by using the elasticity of the member 15 while dust proof and light shielding condition is maintained.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to a finder display device H disposed in various photographic devices such as silver halide cameras and video cameras.

(Background of the Invention) As an example of this type of conventional viewfinder display, an example using secondary imaging shown in FIG. 2 will be described.

In Figure 2, l is a quick return mirror;
A finder block 2 guides light incident from a photographing lens (not shown) to a finder optical path, and a focusing plate 3. Mirror 4 is included. Reference numeral 5 denotes a cylindrical portion into which an erector lens and an eyepiece lens (not shown) are incorporated. Reference numeral 6 denotes a display holder, which is rotatably attached to the cylindrical portion 5 via a shaft 7.8. 9 is a screw for fixing the display holder 6 to the cylindrical portion 5 after position adjustment. Reference numeral 5a designates a notch formed in the cylindrical portion 5 for inserting a display.

FIG. 3 is a detailed diagram showing only the display section.

The display holder 6 has a hole 6a for attachment to the shaft 7.8,
6b, a hole 6c for the screw 9 is provided, and the hole 6c
is slightly larger than the outer diameter of the threaded portion of the screw 9. Further, the display substrate 10 is attached to the display holder 6 with screws 11.
It is attached by 12. The display substrate 10 is made of glass epoxy or the like, and a circuit pattern is formed on the substrate, and display elements such as EDs (light emitting diodes) are provided. Reference numeral 13 denotes a cover made of transparent acrylic for protecting the above-mentioned LEDs, etc., and is bonded to the display substrate 10. Reference numeral 14 denotes a mirror, which bends the display light in the direction of the finder optical axis, and is bonded to the cover 13.

In the above configuration, the display holder 6 is attached to the tube part 5 by the shaft 7.8 so that the display is near the secondary focus plane. Further, the vertical position of the display relative to the field of view is adjusted by rotating the display holder 6 about the axis 7.8, and then fixed with screws 9.

In such a conventional device, a gap is required between the display substrate 10 and the notch 5a of the cylindrical part 5 to adjust the vertical position with respect to the viewing field of the display. There was a problem in that the adhesive adhered to the surface of a display LED (not shown), etc., and the display became invisible.

(Objective of the Invention) An object of the present invention is to solve the above-mentioned problems and provide an in-finder display device that can always display a viewfinder in a clear state.

(Features of the Invention) In order to achieve the above object, the present invention arranges an elastic member in a gap that is an adjustment section by an adjustment mechanism of a display member so as to completely fill the gap, so that the elastic member The present invention is characterized in that the position of the display means relative to the finder optical axis is adjusted by utilizing its elasticity while maintaining a dust-proof and light-shielding state.

(Embodiment of the Invention) FIG. 1 is a side view showing an embodiment of the present invention, and the same members as in FIGS. 2 and 3 are given the same reference numerals.

In FIG. 1, reference numeral 15 denotes an elastic member for closing the gap, and in reality, a sponge-like member is used to enable position adjustment with respect to the field of view displayed in the finder. The elastic member 15 is provided with a hole large enough to accommodate the cover 13, so that display is performed within the cylindrical portion 5.

Further, the elastic member 15 is adhered to the entire circumference of the notch 5a of the cylindrical portion 5 using double-sided adhesive tape or the like. 5b is the notch 5
This is an arcuate portion attached to the corner of a, so that the elastic member 15 is adhered to the notch 5a without any gaps.

According to this embodiment, since the elastic member 15 is arranged in the gap for adjusting the position of the viewfinder display with respect to the field of view,
The above adjustment can be carried out without any inconvenience, and furthermore, the intrusion of dust and the like can be completely prevented. Furthermore, it has the effect of blocking harmful light from around the finder device that causes ghosts and the like.

(Correspondence between the invention and the embodiments) In this embodiment, the display holder 6, the display substrate 10, and the screws 9 are the adjustment mechanism of the present invention, and the elastic member 15 is the elastic member.
An LED and a mirror 14 (not shown) correspond to display members, respectively.

(Effects of the Invention) As explained above, according to the present invention, an elastic member is disposed in the gap that is the adjustment section by the adjustment mechanism of the display member so as to completely fill the gap, so that the elastic member Since the position of the display means with respect to the optical axis of the finder is adjusted using its elasticity while maintaining a dust-proof and light-shielding state, it is possible to always display the display in the finder in a clear state.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a perspective view of a conventional device, and FIG. 3 is a perspective view showing details of only the display section. 6... Display holder, 9... Screw, 10
... Display board, 14 ... Mirror 15
...Elastic member.

Claims (1)

[Claims] (1) In a viewfinder display device comprising a display member that displays the viewfinder, and an adjustment mechanism that adjusts the position of the display member with respect to the finder optical axis and sets the position of the viewfinder display with respect to the viewfinder field of view, the display An in-finder display device characterized in that an elastic member is disposed in a gap that is an adjustment section of the member by the adjustment mechanism so as to completely fill the gap.