JP2001117141A - Finder device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a finder device where a diaphragm member and/or a display member is arranged on a small occupied space and the finder is composed of small number of parts. SOLUTION: In this finder device, an LCD holding frame 5 provided with an aperture part 5a for a flare diaphragm is disposed on the rear surface side of an ocular 4, and an LCD display board 6 capable of controlling light shielding is held on the frame 5 in a state where it is pressed by an LCD pressing plate 7. In the finder device, by adopting such structure that the aperture part 5a is formed on the frame 5 for holding the display board 6 and further the board 6 is pressed by the plate 7 so as to be attached to the frame 5, the device need not be provided with a member dedicated to the flare diaphragm specially, whereby the number of parts is made small and the device is made compact.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a structure around an eyepiece in a finder device.

[0002]

2. Description of the Related Art A real image type finder has been applied as a conventional high magnification finder. However, in this high magnification finder, the occurrence of flare around an eye point poses a problem. In view of this, the real image type zoom finder disclosed in Japanese Patent Application Laid-Open No. 9-211547 is provided with a diaphragm that moves integrally with the second lens group among the first lens group and the second lens group of the objective lens. Further, an aperture is provided between the field frame and the eye point to suppress the occurrence of flare.

[0003]

However, the above-mentioned Japanese Patent Application Laid-Open No. Hei 9-211547 merely states that an aperture is provided between the field frame and the eye point as described above.
There is no specific description on how to arrange the apertures. If a structure in which a dedicated diaphragm is simply arranged is adopted as the diaphragm, the number of components and the number of components will increase, and the occupied space will also increase.

Further, there is also a finder in which a display member or the like is arranged on the eyepiece lens side of the finder in addition to the above-mentioned aperture.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and the diaphragm member and / or the display member can be arranged in a small occupied space, and the number of components is small. It is an object to provide a finder device.

[0006]

According to a first aspect of the present invention, there is provided a finder device including an eyepiece and a display member capable of changing transmittance, wherein the display member is connected to the eyepiece. And a holding member for holding the display member is provided, and the holding member is provided with an opening for restricting incident light from the object side.

According to a second aspect of the present invention, there is provided a finder device having an eyepiece and a display member capable of changing the transmittance, wherein the display member disposed behind the eyepiece is held. And a pressing member for bringing the display member into contact with the holding member, and the pressing member is provided with an opening for restricting incident light from the object side.

According to a third aspect of the present invention, there is provided a finder device having an eyepiece and a display member capable of changing the transmittance, wherein the display member disposed behind the eyepiece is held. Holding member, and a pressing member for elastically contacting the display member with the holding member, the holding member has a locking portion, and the pressing member is And a locking portion (engaging portion) for engaging with the locking portion of the holding member.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view around an eyepiece of a finder device according to a first embodiment of the present invention. FIG. 2 is a cross-sectional view around the eyepiece of the finder device. In the following description, the object side (subject side) is defined as the front side, and the eyepiece side (eye point side) is defined as the rear side, and the left-right direction is the direction when the object side is viewed from the eyepiece side.

The finder device according to the present embodiment is a finder device applied to a camera, and mainly includes an objective finder optical system (not shown), a finder main body 1 supporting finder constituent members, a prism 3, and an eyepiece lens 4. When,
An LCD holding frame 5 as a holding member, a finder cover 2 covering the upper surface of the prism 3, an LCD display plate 6 as a display member supported by the LCD holding frame 5, an LCD pressing plate 7 as a holding member, and the eyepiece 4 A guide shaft 8 for supporting the guide so as to be able to move forward and backward for adjusting the diopter;
, A finder window 11, a rear cover 12 for supporting the finder window and the like, and a rubber cover 13 attached to the rear cover 12 for protecting the observation eyes.

An eyepiece 4 is provided on the finder body 1.
Are provided with guide portions 1a and 1b sandwiching both sides of the eyepiece, a groove portion 1c through which the arm portion 4a of the eyepiece lens 4 is inserted, a slope 1d, and a positioning pin 1e on the slope.

The LCD holding frame 5 has a flare stop opening 5a provided on the rear side of the eyepiece 4,
Upper, lower, and left side frame portions 5b for positioning the display panel 6, notch portions 5c serving as escape portions of the LCD sealing portion provided on the left side of the frame portion, and locking projection portions 5d provided on both outer surfaces.
And an inclined mounting portion 5e facing the main body slope 1d, a positioning hole 5f and an LED positioning pin 5g on the mounting portion 5e, upper and lower eaves portions 5i and 5j, a left wall portion 5k, and a right wall. And a concave portion 5h on the portion.

In the LCD panel 6, a sealing liquid is sealed in two glass plates by a sealing portion 6a.
A flexible printed circuit board (not shown) is connected to the LCD panel 6 at the right end thereof. The transmittance is controlled and driven by a drive output based on a release signal, and the transmitted light is temporarily shielded from a normal transparent state. .

The LCD pressing plate 7 is an elastically deformable thin plate member, and has an opening 7a larger than the aperture 5a at the center, and an engaging portion between the folded portions on both sides and the LCD holding frame. Locking hole (engaging hole) 7c to be (engaging portion)
In addition, the upper and lower sides of the opening 7a form a curved surface portion 7b bulging toward the front LCD display panel 6 side.

The finder window 11 is held by the rear cover 12 and is arranged behind the eyepiece 4 and the LCD panel 6. The outside of the rear cover 12 is covered with a rubber cover 13 for eye protection.

The LCD holding frame 5 is used to hold the viewfinder body 1
The positioning hole 5f is inserted into the positioning pin 1e to be positioned, and the concave portion 5h is fitted to the guide portion 1a and is attached in a state where it is prevented from rotating. In this state, an adhesive is applied to the gap S1 between the guide portion 1b and the left wall portion 5k to be fixed. Further, the positioning holes 9a of the LED mounting base 9 are fitted to the LED positioning pins 5g on the inclined mounting portion 5e.
Is fitted, so that the LED 10 is mounted in a state inclined to the finder optical axis Of.

Further, the LCD display plate 6 is mounted on the LCD holding frame 5 by using the LCD pressing plate 7.
The display panel 6 is inserted into the frame portion 5b of the LCD holding frame 5, and LC
The LCD 7 is formed by elastically deforming the curved surface portion 7b of the D pressing plate 7.
The display panel 6 is pressed, and L is
The engaging hole (engaging hole) 7c of the CD pressing plate is fitted and engaged to bring the CD pressing plate into the mounted state.

When the LCD holding frame 5 and the LCD 7 are fixed to the finder main body 1, the eyepiece lens 4 has its upper surface covered with the eaves 5i of the LCD holding frame and its lower surface provided with the eaves 5e.
j, and the guide portion 1 of the finder body 1 is on the side surface.
a, 1b and the side wall 5k of the LCD holding frame and the side wall of the concave portion 5h.
It is covered with the display panel 6 and held in a dustproof state.

In the finder device of the present embodiment configured as described above, in a normal state in which the release operation is not performed when the power supply of the camera is turned on, the LCD display panel 6 is in a state of transmitting the incident light, and the finder window is opened. A subject image is observed by the eyepiece 4 through the LCD 11 and the LCD panel 6. At that time, unnecessary incident light from the objective side is
The image is restricted by the aperture opening 5a of the holding frame 5, and a good subject image is observed. When the focusing operation is completed, or
When the strobe charging is completed, the LED 10 is turned on and recognized at the right end of the finder window 11.

Therefore, when the release operation on the camera side is performed, the LCD display panel 6 is instantaneously blocked, and it is recognized that the shutter has been released through the finder window 11.

According to the above-described finder device of the present embodiment, the LCD holding frame 5 for holding the LCD display panel 6 is provided with the opening 5a serving as a flare stop. Also, the occupied space is small. In addition, since the LCD display plate 6 can be attached to the LCD holding frame 5 by attaching the LCD pressing plate 7 as a thin plate member to elastically deform and abut the LCD display plate 6, it is easy to assemble and remove during repair. This is advantageous in terms of occupied space. Further, the LCD panel does not shift due to vibration or the like.

Next, a finder device according to a second embodiment of the present invention will be described. FIG. 3 is an exploded perspective view around the eyepiece of the finder device according to the present embodiment.
FIG. 4 is a cross-sectional view around the eyepiece of the finder device.

The finder device of the present embodiment is a finder device similarly applied to a camera, and its constituent members are substantially the same as those of the finder device of the first embodiment, except that an opening for a flare stop is provided. L, not LCD holding frame
The difference is that it is provided on the CD pressing plate side. Hereinafter, only different portions will be described. The same members as those in the first embodiment will be described with the same reference numerals.

As shown in FIGS. 3 and 4, an LCD pressing plate 7 'for pressing the LCD display plate 6 is provided with an opening 7a' for flare stop at the center, and the other shape is the same as that of the LCD panel.
It has the same shape as the pressing plate 7.

The LCD holding frame 5 'for holding the LCD panel 6 is provided with an opening 5a' larger than the aperture 7a 'located on the rear side of the eyepiece 4. Other shapes have the same shape as the LCD holding frame 5.

In the finder device of this embodiment,
Unwanted incident light from the object side is restricted by the aperture 5a of the LCD pressing plate 7 ', and a good subject image is observed. The same effects as those of the finder device of the first embodiment can be obtained by the finder device of the present embodiment.

Based on each of the above embodiments, (1) an eyepiece and an eyepiece are disposed behind the eyepiece;
A finder device comprising: a display member capable of changing the transmittance; and a holding member that holds the display member and has an opening that regulates incident light from the object side. be able to.

(2) An eyepiece, a display member arranged behind the eyepiece and capable of changing transmittance, and a holding member arranged behind the eyepiece and holding the display member; A finder device having an opening for restricting incident light from the object side, and a pressing member for abutting the display member on the holding member can be proposed.

(3) The finder device according to (2), wherein the holding member is disposed between the eyepiece and the display member.

(4) In a finder device having an eyepiece and a display member capable of changing the transmittance, a holding member for holding the display member disposed behind the eyepiece, A finder device comprising: a pressing member for elastically contacting the display member; and locking means for locking the pressing member to the holding member.

(5) The finder device according to (4), wherein the holding member is disposed between the eyepiece and the display member.

(6) In a finder device having an eyepiece and a display member whose transmittance can be changed, a holding member for holding the display member provided behind the eyepiece, and the holding member A holding member for elastically bringing the display member into contact with the member, wherein the holding member has a locking portion, and the holding member has a locking portion of the holding member. A finder device having a locking portion (engaging portion) that engages with the finder device.

(7) The finder device according to the above (6), wherein the pressing member is provided with an opening for restricting incident light from the object side.

(8) The finder device according to (6), wherein the holding member is provided with an opening for restricting incident light from the object side.

[0035]

As described above, according to the finder device of the present invention, the aperture member and / or the display member can be arranged in a state where the occupying space is small, the number of components is small, and the size is reduced. A finder device that can realize low cost can be provided.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a finder device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view around an eyepiece of the finder device according to the first embodiment.

FIG. 3 is an exploded perspective view of a finder device according to a second embodiment of the present invention.

FIG. 4 is a cross-sectional view around the eyepiece of the finder device according to the second embodiment.

[Explanation of symbols]

 3 ... eyepiece lens 5, 5 '... LCD holding frame (holding member) 5a, 7a' ... flare aperture opening (opening) 5d ... locking protrusion (locking portion) 6 ... LCD display Plate (display member) 7, 7 ': LCD pressing plate (holding member) 7c: Locking hole (locking portion)

Claims (3)

[Claims] 1. A finder device having an eyepiece and a display member whose transmittance can be changed, wherein the display member is disposed behind the eyepiece and a holding member for holding the display member. Wherein the holding member is provided with an opening for restricting incident light from the object side. 2. A finder device having an eyepiece and a display member capable of changing transmittance, wherein: a holding member for holding the display member disposed behind the eyepiece; and the holding member. And a holding member for bringing the display member into contact with the holding member, wherein the holding member is provided with an opening for restricting incident light from the object side. 3. A finder device having an eyepiece and a display member capable of changing transmittance, a holding member for holding the display member disposed behind the eyepiece, and the holding member. A holding member for elastically bringing the display member into contact with the holding member, wherein the holding member has a locking portion, and the holding member has a locking portion of the holding member. A finder device having a locking portion to be engaged.