JPH1184466A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera with a light shielding function shielding light made incident from an eyepiece part, to eliminate need for carrying an exclusive light shielding member, to improve the mobility of the camera, to reduce the cost thereof and to contrive the miniaturization of the camera itself. SOLUTION: This camera is provided with an optical finder formed so that a photographing visual field is viewed through a photographing lens and a lens cap holding body 13 for holding a lens cap engaged and attached to the tip of a photographing lens barrel. The holding body 13 is provided with an engagement part 15 which can be attached and detached with respect to an eyepiece part and a light shielding part 16 shielding the light made incident on an image pickup system from the eyepiece part in the state that the engagement part 15 is engaged with the eyepiece part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera having means for holding a detachable lens cap at the tip of a taking lens barrel, for example, in a single-lens reflex camera.

[0002]

2. Description of the Related Art A lens cap is detachably attached to the tip of a taking lens barrel of such a single-lens reflex camera or the like to protect the taking lens. Since the lens cap is detachable from the tip of the taking lens barrel, a method of holding and storing the lens cap is adopted.

For example, Japanese Utility Model Laid-Open No. 5-83735 describes that a detachable lens cap is always integrated with a portable strap through a cord member. or,
Japanese Unexamined Patent Publication No. Sho 62-12137 discloses that an eyepiece shutter is required to prevent reverse light blocking from an eyepiece when a self-timer of a single-lens reflex camera is used. It is described that it is built in the vicinity of the eyepiece of the part.

Japanese Utility Model Publication No. Sho 59-9212 discloses that a shielding member for an eyepiece is attached to a portable strap. Japanese Utility Model Publication No. 2-111969 discloses a sliding lens cap. It is described that the member and the shielding member of the eyepiece are connected by a strap.

[0005]

When using a camera having a detachable lens cap for protecting the photographic lens as described above, the photographer must hold the lens cap by hand at the time of photographing, or place the photographer in another place. It is necessary to keep the lens cap, especially in the open air, and there are many situations where there is no suitable place to store the lens cap.

[0006] In view of the above, Japanese Utility Model Application Laid-Open No. 5-83373.
In the form in which the lens cap is integrally attached to the portable strap through a string-shaped member as in Japanese Patent Publication No. 5 (1993), first, when the attachment position of the portable strap is far from the front of the lens, the string member becomes longer. , Impairing portability.

In addition, when a light shielding member is built in as disclosed in Japanese Patent Application Laid-Open No. 62-12137, there is a problem that the camera body becomes large. In Japanese Utility Model Publication No. 59-9212, a detachable light shielding member is attached to a strap. Although it is held, there is no particular place for placing the lens cap, which is inconvenient.

Further, in the case where the lens cap member and the shielding member of the eyepiece are integrally formed through a strap as in the above-mentioned Japanese Utility Model Laid-Open No. 2-111969, the shape of the camera body is greatly restricted. However, it is not suitable for miniaturization.

Therefore, an object of the present invention is to provide the following camera. (a) A camera that has a light blocking function of blocking light incident from an eyepiece by a lens cap holder and does not require carrying a dedicated light blocking member, thereby improving the mobility of the camera. (b) A camera that can reduce the cost and does not need to incorporate a light-shielding mechanism in the eyepiece, and can reduce the size of the camera itself.

[0010]

In order to solve the above-mentioned problems and achieve the object, a camera according to the present invention is configured as follows. (1) The camera of the present invention has an optical finder whose photographic field of view can be visually recognized through a photographic lens, and holds a lens cap for holding a lens cap fitted and attached to the tip of a photographic lens barrel. A lens cap holder, a fitting part detachable from an eyepiece part of an optical viewfinder, and an imaging system from the eyepiece part when the fitting part is fitted to the eyepiece part. And a light-shielding portion for shielding light incident on the light-emitting device. (2) The camera according to the present invention is the camera described in (1) above, wherein the lens cap holder has a mounting means that can be mounted on a portable strap for suspending and holding the camera. I have. (3) The camera according to the present invention is the camera described in (2) above, wherein the strap mounting means provided on the lens cap holder has the lens cap held by the holder and the holder fitted therein. Each of the eyepieces is a strap insertion hole provided so as not to contact the strap after wearing.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment) First, a first embodiment of the present invention will be described. FIG. 1 is a configuration diagram showing a camera according to a first embodiment of the present invention. FIG. 1 (a) is a front perspective view, and FIG. 1 (b) is a rear perspective view.

A camera body 1 such as an electronic camera has a taking lens 2 and its lens barrel 2a, an optical finder window 3, a release 4, a zoom knob 5, an LED (light emitting diode) 6,
LCD (liquid crystal display) 7a, 7b, each mode button 8
a and 8b are provided.

Further, a strap insertion hole 10 is provided on the exterior of the camera body 1, and a portable strap 11 for hanging the camera is inserted into the strap insertion hole 10.

As shown in FIG. 2, the portable strap 11 is provided with a lens cap holder 13 for holding a lens cap 12 which is detachable from the lens barrel 2a of the taking lens 2. ing.

The lens cap 12 is provided with a pair of holding pieces 12a and 12b, each of which is provided with a spring to apply a biasing force in the outer peripheral side (a) or (b) direction.
It is to be mounted on the lens barrel 2a of the taking lens 2.

FIGS. 3A and 3B are specific structural views of the lens cap holder 13, wherein FIG. 3A is a front view and FIG.
FIG. 2C is a side view, and FIG. 2C is a view showing a state in which the lens cap holder 13 is attached to the eyepiece 3a of the optical viewfinder window 3.

The lens cap holder 13 is formed in an elongated shape by using an elastic material, and wall portions 14a and 14b for holding the lens cap 12 are formed near both ends in the longitudinal direction. These walls 14a,
14b have the same shape protrudingly formed.

The lens cap holder 13 has
At a substantially central portion inside these walls 14a and 14b,
A detachable fitting portion 15 is formed on the eyepiece 3a of the optical finder window 3.

The fitting portion 15 is provided on each of the wall portions 14a, 14b.
The width A is slightly shorter than the width Q of the eyepiece 3a of the optical finder window 3 shown in FIG. 3
a.

The fitting portion 15 is formed not only in the width A direction but also in a direction perpendicular to the width A direction so as to fit into the eyepiece 3a of the optical finder window 3. May do it.

When the fitting portion 15 is fitted to the eyepiece portion 3a of the optical viewfinder window 3, light entering the imaging system in the camera body from the eyepiece portion 3a is put on the lens cap holder 13. A light shielding part 16 for shielding light is formed.

The lens cap holder 13 has a strap insertion hole 17 formed therein. The strap insertion hole 17 does not come into contact with the portable strap 11 after being attached to either the lens cap 12 held by the lens cap holder 13 or the eyepiece 3a to which the lens cap holder 13 is fitted. Formed in the part.

Next, the operation of the camera configured as described above on the lens cap holder 13 will be described. When using a camera having a detachable lens cap 12 that protects the photographing lens 2, the photographer attaches the lens cap 12 to the lens cap holder 13 during photographing.

At this time, the lens cap 12 pushes the pair of holding pieces 12a and 12b into the lens cap 12 against the urging force of the spring by the operation of the photographer. Between the wall portions 14a, 14b of the pair, where the pair of holding pieces 12
a, 12b are separated, and each holding piece 12 is
a and 12b are brought into contact with the respective walls 14a and 14b.

Thus, the lens cap 12 is mounted on the lens cap holder 13. On the other hand, when the eyepiece 3a of the optical finder window 3 is shielded from light, the fitting portion 15 of the lens cap holder 13 is fitted to the eyepiece 3a of the optical finder window 3 as shown in FIG. Is done.

In this state, the optical viewfinder window 3
The eyepiece 3a is a light-shielding portion 1 of the lens cap holder 13.
6 is shielded from light. As described above, in the first embodiment, the lens cap holder 13 for holding the lens cap 12 fitted and attached to the tip of the photographing lens barrel 2a is detachably fitted to the eyepiece 3a. Joint 15;
In a state where the fitting portion 15 is fitted to the eyepiece 3a,
Shielding unit 1 that shields light incident on the imaging system from eyepiece unit 3a
Since the lens cap holder 13 is provided, the lens cap holder 13 has a light blocking function of blocking light incident from the eyepiece 3a, and there is no need to carry a dedicated light blocking member, thereby improving the mobility of the camera.

Further, the cost can be reduced. Eyepiece 3a
Since the light shielding mechanism does not need to be built in the camera, the size of the camera can be reduced. In addition, since the lens cap holder 13 has the strap insertion hole 17 that can be attached to the portable strap 11 for hanging and holding the camera, the lens cap holder 13 can be attached to the portable strap 11 as a lens cap holder also serving as a light-shielding plate. There is no need to carry the lens cap holder by hand, and it is excellent in portability and there is no risk of loss.

Both the lens cap 12 held by the lens cap holder 13 through the strap insertion hole 17 provided in the lens cap holder 13 and the eyepiece 3a fitted with the lens cap holder 13 are attached. Since it is provided so as not to contact the later portable strap 11, the lens cap 12 can be detached or attached to or detached from the eyepiece 3a while the lens cap holder 13 is attached to the portable strap 11. Excellent operability.

Since the lens cap holder 13 is integrally formed of an elastic material, the lens cap
Can be attached to and detached from the eyepiece 3a by using elastic deformation, operation is facilitated, and the flexibility of the portable strap 11 is not hindered even when attached to the portable strap 11, so that the portable The convenience of the strap 11 is good.

Since the lens cap holder 13 has a symmetrical shape in which the fitting portion 15 is formed substantially at the center between the wall portions 14a and 14b of the same shape, the lens cap holder 1
The operability is improved without making a mistake in the mounting direction of the optical finder window 3 to the eyepiece 3a.

In the first embodiment, the fitting portion 15 of the lens cap holder 13 is fitted to the eyepiece 3a of the optical viewfinder window 3. However, the present invention is not limited to this. Depending on the size and shape of the eyepiece 3a of the optical viewfinder window 3, the optical viewfinder window 3 can be positioned between the wall portion 14a and the fitting portion 15 or between the wall portion 14b and the fitting portion 15. It may be fitted to the eyepiece 3a.

(Second Embodiment) Next, a second embodiment of the present invention will be described.
An embodiment will be described. FIG. 4 is a configuration diagram of a main part showing a camera according to a second embodiment of the present invention. FIG. 4 (a) is an external view in which a lens cap 12 is mounted on a lens cap holder 20, and FIG. b) is an external view of the optical viewfinder window 3 when attached to the eyepiece 3a.
The other parts of the camera than the main part are the same as those shown in FIGS. 1 to 3 and their detailed description is omitted.

The lens cap holder 20 is formed in an elongated shape by an elastic material, and each of the wall portions 21 for holding the lens cap 12 near both ends in the longitudinal direction thereof.
a and 21b are formed. These walls 21a, 21
b is the same shape protruded and formed,
Holes 22a and 22b into which the holding pieces 12a and 12b of the lens cap 12 are fitted are formed.

The lens cap holder 20 has
On a surface opposite to the surface on which the wall portions 21a and 21b are formed, a fitting portion 23 that is detachable from the eyepiece portion 3a of the optical finder window 3 is formed.

The width of the fitting portion 23 is as shown in FIG.
4 (a) is slightly shorter than the width Q of the eyepiece 3a of the optical viewfinder window 3, and as shown in FIG.
Of the walls 24a, 24b formed on both ends of the lens cap holder 13 and the lens cap holder 13, respectively, the wall 24a is engaged with the optical finder window 3 to fit the eyepiece 3a of the optical finder window 3. It is a match.

When the fitting portion 23 is fitted to the eyepiece 3a of the optical finder window 3, the lens cap holder 20 receives light incident on the imaging system in the camera body from the eyepiece 3a. A light shielding part 25 for shielding light is formed.

Further, the lens cap holder 20 includes
A strap insertion hole 26 is formed. The strap insertion hole 26 does not come into contact with the portable strap 11 after being attached to either the lens cap 12 held by the lens cap holder 20 or the eyepiece 3a fitted with the lens cap holder 20. Formed in the part.

Next, the operation of the above-configured camera with respect to the lens cap holder 20 will be described. When using a camera having a detachable lens cap 12 that protects the photographing lens 2, the photographer attaches the lens cap 12 to the lens cap holder 20 during photographing.

At this time, the lens cap 12 pushes the pair of holding pieces 12a and 12b into the lens cap 12 against the urging force of the spring by the operation of the photographer. Between the wall portions 21a and 21b, where a pair of holding pieces 12
a, 12b are separated, and each holding piece 12 is
a and 12b are brought into contact with the respective walls 21a and 21b.

Thus, the lens cap 12 is mounted on the lens cap holder 20. On the other hand, when the eyepiece portion 3a of the optical viewfinder window 3 is shielded from light, the fitting portion 25 of the lens cap holder 20 and the wall portion 24a are connected as shown in FIG.
As shown in (b), the optical finder window 3 is fitted to the eyepiece 3a.

At this time, the lens cap holder 20 is fitted to the eyepiece 3a of the optical viewfinder window 3 with the lens cap 12 mounted. In this state, the eyepiece 3 a of the optical viewfinder window 3 is shielded from light by the light shielding unit 25 of the lens cap holder 20.

As described above, in the second embodiment, the wall portions 21a and 21b for holding the lens cap 12 are formed on the lens cap holder 20, and the eyepiece 3a of the optical finder window 3 is formed. Fitting portion 23 and wall portion 24a fitted to this eyepiece portion 3a to shield light from
Is formed, it is needless to say that the same effects as those of the first embodiment can be obtained.
2 and the eyepiece 3 of the optical viewfinder window 3
Since the lens cap 12 is fitted to the eyepiece 3a, the lens cap 12 is fitted to the eyepiece 3a while holding the lens cap 12, so that it can be used as a reverse incident light preventing means, and is easy to use.

Also, even if there is a dimensional error in the fitting portion 23 due to the wall portion 24a, rattling is suppressed, and a stable mounting state can be ensured. (Third Embodiment) Next, a third embodiment of the present invention will be described.

FIG. 5 is a structural view of a main part showing a camera according to a third embodiment of the present invention. FIG. 5A is an external view in which a lens cap 12 is mounted on a lens cap holder 30. FIG. 2B is an external view of the optical viewfinder window 3 when attached to the eyepiece 3a. The other parts of the camera than the main part are the same as those shown in FIGS. 1 to 3 and their detailed description is omitted.

The lens cap holding member 30 is formed in an elongated shape by an elastic material, and each wall portion 31 for holding the lens cap 12 near both ends in the longitudinal direction.
a and 31b are formed. These walls 31a, 31
“b” is formed so as to rise to the height of the lens cap 12.
Holes 32a and 32b into which 2a and 12b are fitted are formed.

The lens cap holder 30 includes:
On the surface opposite to the surface on which the wall portions 31a and 31b are formed, a concave fitting portion 34 detachable from the convex portion 33 formed on the eyepiece 3a of the optical finder window 3 is provided. Is formed.

When the fitting portion 34 is fitted to the convex portion 33 of the optical finder window 3, light entering the imaging system in the camera body from the eyepiece 3a is fitted to the lens cap holder 30. A light-shielding portion 35 for shielding light is formed.

Further, the lens cap holder 30 includes
A strap insertion hole 36 is formed. As described above, the strap insertion hole 36 is provided in the lens cap holder 3.
Neither the lens cap 12 held at 0 nor the eyepiece 3a fitted with the lens cap holder 30 is formed at a portion that does not come into contact with the portable strap 11 after being attached.

Next, the operation of the above-configured camera for the lens cap holder 30 will be described. When using a camera having a detachable lens cap 12 that protects the photographing lens 2, the photographer attaches the lens cap 12 to the lens cap holder 30 during photographing.

At this time, the lens cap 12 pushes the pair of holding pieces 12a and 12b into the lens cap 12 against the urging force of the spring by the operation of the photographer. Between the wall portions 31a and 31b, where the pair of holding pieces 12
a, 12b are separated, and each holding piece 12 is
a, 12b are brought into contact with the respective wall portions 31a, 31b.

Thus, the lens cap 12 is mounted on the lens cap holder 30. On the other hand, when the eyepiece 3a of the optical finder window 3 is shielded from light, the fitting portion 34 of the lens cap holder 30 is fitted to the convex portion 33 of the optical finder window 3 as shown in FIG. Is done.

At this time, the lens cap holder 30 is fitted to the eyepiece 3a of the optical viewfinder window 3 with the lens cap 12 mounted. In this state, the eyepiece 3a of the optical viewfinder window 3 is shielded from light by the light shielding unit 35 of the lens cap holder 30.

As described above, in the third embodiment, the wall portions 31a and 31b for holding the lens cap 12 are formed on the lens cap holder 30, and the eyepiece 3a of the optical finder window 3 is formed. Since the fitting portion 34 that fits into the convex portion 33 is formed in order to shield the light, the same effect as in the second embodiment can be obtained.

(Modifications) The present invention is not limited to the first to third embodiments, but may be modified as follows.

For example, in the first to third embodiments, the case where the present invention is applied to a camera such as an electronic camera has been described. However, the present invention is not limited to this, and can be applied to all applications in which the optical finder window 3 is shielded from light.

Further, the fitting portion fitted to the optical finder window 3 may be deformed according to the size and shape of the optical finder window 3. (Features of Embodiment) The features of the above-described embodiment (including the modifications) are summarized as follows. [1] The camera described in the embodiment has an optical finder whose photographic field of view is visible through a photographic lens, and holds a lens cap fitted and attached to the tip of a photographic lens barrel. A lens cap holding body, wherein the lens cap holding body is detachable from an eyepiece, and an image is taken from the eyepiece when the fitting part is fitted to the eyepiece. And a light-shielding portion for shielding light incident on the system.

In the above camera, since the lens cap holder has a light blocking function for blocking light incident from the eyepiece, it is not necessary to carry a dedicated light blocking member, and the mobility of the camera is improved.

Further, the cost can be reduced. Further, since it is not necessary to incorporate a light shielding mechanism in the eyepiece, there is an advantage that the size of the camera can be reduced. [2] The camera described in the embodiment is the camera described in the above [1], and the lens cap holder has a mounting means that can be mounted on a portable strap for suspending and holding the camera. It has become something.

In the camera described above, the same operation and effect as in the above [1] can be obtained, and the lens cap holder also serving as a light-shielding plate is attached to the portable strap, so that it is not necessary to carry the lens cap holder by hand. It has the advantages of excellent portability and no risk of loss. [3] The camera described in the embodiment is the camera described in the above [2], wherein the strap mounting means provided on the lens cap holder includes the lens cap held by the holder, and the holder. Is a strap insertion hole provided so that none of the eyepieces fitted with does not come into contact with the attached strap.

In the above camera, the same operation and effect as in the above [2] can be obtained, and the lens cap can be attached and detached and attached to and detached from the eyepiece while the lens cap holder is attached to the strap. Therefore, the operability is excellent. [4] The camera described in the embodiment is the camera described in [1] to [3].
Wherein the fitting portion is formed so as to be fitted to the eyepiece portion while holding the lens cap.

In the above camera, the above [1] to [3]
In addition to providing the same operation and effect as described above, the lens cap can be used as a means for preventing reverse incident light by being fitted to the eyepiece while holding the lens cap, so that it is easy to use. [5] The camera described in the embodiment includes the camera described in [1] to [4].
Wherein the lens cap holder is integrally formed of an elastic material.

In the above camera, the above [1] to [4]
It has the same function and effect as the
Since the attachment to and detachment from the eyepiece can be performed by using elastic deformation, the operation is easy, and the flexibility of the strap is not impaired even when the strap is attached, so that the strap is easy to use. [6] The camera described in the embodiment is the camera described in the above [1] or [2]
Wherein the lens cap holder has an elongated shape, and is formed at a substantially central portion between the two wall portions, the wall portions having the same shape protruding and formed near both ends in the longitudinal direction, respectively. A fitting portion for fitting to the eyepiece portion, and a lens cap is detachably held between the two wall portions.

In the above camera, the above [1] or [2]
In addition to the same operation and effect as described above, the lens cap holder has a symmetrical shape in which a fitting portion is formed substantially at the center between both walls of the same shape, so that operability is good without erroneous mounting directions. [7] The camera described in the embodiment is the camera described in [1] or [2].
Wherein the lens cap holder has an elongated shape, and a wall portion of the same shape protruding and formed near both ends in the longitudinal direction, and a contact formed between the two wall portions. A fitting portion for fitting to the eye portion is provided, and the fitting portion is attached to the eyepiece by the fitting portion and one of the two wall portions.

In the above camera, the above [1] or [2]
In addition to the same operation and effect as described above, one of the two wall portions having the same shape and the fitting portion formed on both wall portions are attached to the eyepiece portion, so that the fitting portion has a dimensional error. Even if there is, a stable mounting state can be secured by the wall.

[0065]

According to the present invention, a camera having the following functions and effects can be provided. (a) The lens cap holder has a light-blocking function of blocking light incident from the eyepiece, and it is not necessary to carry a dedicated light-blocking member, thereby improving the mobility of the camera. (b) The cost can be reduced, and further, it is not necessary to incorporate a light shielding mechanism in the eyepiece, and the camera itself can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of a camera according to the present invention.

FIG. 2 is an external view of a lens cap holder in the camera.

FIG. 3 is a specific configuration diagram of a lens cap holder.

FIG. 4 is a configuration diagram showing a second embodiment of the camera according to the present invention.

FIG. 5 is a configuration diagram showing a third embodiment of the camera according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Camera main body, 2 ... Photographing lens, 2a ... Barrel, 3 ... Optical finder window, 12 ... Lens cap, 13 ... Lens cap holder, 14a, 14b ... Wall part, 15 ... Fitting part, 16 ... Light shielding part Reference numeral 17: Strap insertion hole, 20: lens cap holder, 21a, 21b: wall, 23: fitting part, 24a, 24b: wall, 25: light shielding part, 26: strap insertion hole, 30: lens cap holding Body, 31a, 31b: wall portion, 34: fitting portion, 35: light shielding portion, 36: strap insertion hole.

Claims (3)

[Claims] 1. A camera having an optical finder through which a photographing visual field can be visually recognized through a photographing lens, and a lens cap holding body for holding a lens cap fitted and mounted on a tip of a photographing lens barrel. The lens cap holding body is configured to be detachably fitted to an eyepiece of the optical viewfinder, and to enter the imaging system from the eyepiece when the fitting is fitted to the eyepiece. A camera comprising: a light-blocking unit that blocks light to be emitted. 2. The camera according to claim 1, wherein the lens cap holder has a mounting means that can be mounted on a portable strap for suspending and holding the camera. 3. The strap mounting means provided on the lens cap holder, wherein the lens cap held by the holder and the eyepiece to which the holder is fitted are both attached to the strap. 3. A strap insertion hole provided so as not to contact with the strap.
The camera according to.