JP2003066516A - Lens attachment structure of stroboscope - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lens-attached housing for stroboscope capable of attaining the protection of a fresnel lens and the replacement of a filter by having such a structure that the housing can be attached/detached to/from an optical system housing, the filter and a protecting frame can be replaced and attached at the same time, or either of the filter and the protecting frame can be replaced and attached. SOLUTION: A stroboscope which is mechanically and electrically connected to the camera and emits flash light interlocking with the operation of the camera is characterized in that the protecting frame for protecting the front side of the fresnel lens of the stroboscope and the file arranged in front of the fresnel lens are constituted such that they can be attached/detached, the stroboscope is constituted of the optical system housing and the lens-attached housing constituted such that it can be attached to the optical system housing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a strobe which is mechanically and electrically coupled to a camera and which flashes in conjunction with the operation of the camera, and more particularly to a protective frame for protecting a Fresnel lens from some collision object. And a filter placed on the front surface of the Fresnel lens, or both of them, can be replaced and attached to the lens attachment case.

[0002]

2. Description of the Related Art In general, a strobe, which is mechanically and electrically coupled to a camera and which flashes in conjunction with the operation of the camera, has an optical system casing connected in a bendable structure in the middle and this optical system. It is composed of an interface function housing with a built-in interface function that emits light in conjunction with the function of.

A Fresnel lens is mounted on the front surface of the optical system housing, but the Fresnel lens is structurally weak against impact and needs to be protected by a simple structure.
Therefore, it is necessary to pay attention to the fact that a recessed engaging portion for attaching and detaching various filters is already provided on the front surface of the optical system casing. Further, it is necessary to have a structure in which a filter can be mounted on the front surface of the Fresnel lens, and eventually, a lens accessory housing for mounting the filter and a protective frame for protecting the Fresnel lens at the same time or by exchanging them is required. Moreover, it is convenient for this lens accessory housing to have a structure that can be attached to and detached from the optical system housing.

[0004]

Therefore, an object of the present invention is to provide a Fresnel structure having a structure that can be attached to and detached from an optical system housing, and in which the filter and the protective frame can be mounted at the same time or by replacing either one. The objective is to provide a strobe lens accessory housing that enables lens protection and filter replacement.

[0005]

According to a first aspect of the present invention, there is provided a strobe which is mechanically and electrically coupled to a camera and which flashes in synchronization with the operation of the camera. A protective frame for protecting the front surface of the Fresnel lens and a filter arranged in front of the Fresnel lens are configured to be detachable, and a lens-attached housing attachable to the strobe optical system housing is characterized. With the strobe lens attachment structure, a filter and a protective frame can be properly attached.

According to a second aspect of the present invention, the lens attachment housing has a structure in which a filter is attached to the front and a protection frame is attached to the rear of the enclosure, and the protection frame is attached to the rear of the filter in the strobe lens attachment structure. It is arranged.

According to a third aspect of the present invention, a protective frame is attached to the front of the lens attachment housing, and a filter is attached to the rear of the lens attachment housing. The filter is placed in the.

According to a fourth aspect of the present invention, in a strobe which is mechanically and electrically coupled to a camera and flashes in conjunction with the operation of the camera, the optical system housing of the strobe is provided with a Fresnel lens of the strobe. A strobe lens attachment structure comprising a protection frame for protecting the front surface and a lens attachment housing configured to be replaceable with a filter arranged on the front surface of the strobe, and a protection frame and a filter. Either one of them can be replaced and attached to the lens-attached housing.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 relate to an embodiment of the present invention. FIG. 1 is a perspective view of a whole combination, FIG. 2 is a perspective view of a protective frame, and FIG. FIG. 1
Is an interface function housing for interfacing a camera and a strobe, 2 is an optical system housing, and a plastic Fresnel lens 3 is mounted on the front surface. The optical system case 2 and the interface function case 1 are connected by a bending structure that can be bent as shown by arrow A. A lens attachment housing 5 is mounted on the front surface of the Fresnel lens 3. That is, the lens-attached housing 5 is formed into a cage shape, and the protrusions 6 are integrally provided on the left and right inner sides.

The protrusions 6 engage with the recessed engaging portions 7 formed on the left and right of the optical system casing 2. The outer peripheral frame of the lens-attached housing 5 is set to have a size slightly larger than the outer peripheral frame of the optical system housing 2 on which the Fresnel lens 3 is mounted, and is mounted from the direction of the arrow B to project The structure is such that the part 6 can be engaged with the engaging part. Therefore, the lens-attached casing 5 is mounted so as to fit into the optical system casing 2.

Further, the lens-attached housing 5 is formed with slits 10 and 11 so that the protective frame 8 and the filter 9 can be mounted from above, and the protective frame 8 and the filter 9 are mounted along the grooves 12 and 13. It is like this. The protective frame 8 and the filter 9 are slits 1
Lens accessory housing 5 along grooves 12 and 13 through 0 and 11
The size is set so that it can be installed inside.

The protective frame 8 has a frame structure in which upper and lower frames 14 and 15 are integrally provided so that the Fresnel lens 3 can be protected from a collision object. Of course, in this case, the size and number of meshes formed by the upper and lower frames 14 and 15 can be appropriately changed. It is convenient to use one without using both the filter 9 and the protective frame 8,
The slits 10 and 11 and the grooves 12 and 1 of the lens accessory housing 5
Only one of the filters 9 and the protective frame 8 may be attached to one of the filters 3 and used as required.
That is, the lens-attached housing 5 of the present invention can have only the filter 9 or only the protective frame 8 or a combination of both.

[0013]

As described above, according to the present invention, it is possible to use only the filter, only the protective frame, or a combination of both.
It is a simple structure that can protect the Fresnel lens from any colliding object, and at the same time use a filter.
It is also possible to provide a strobe lens attachment structure which is effective in that either the protective frame or the filter can be used alone.

[Brief description of drawings]

FIG. 1 is an overall combined perspective view of an embodiment of the present invention.

FIG. 2 is a perspective view of a protective frame of the same example.

FIG. 3 is an enlarged view of a main part of the example.

[Explanation of symbols]

1 Interface function case 2 Optical system housing 3 Fresnel lens 4 Bending structure 5 Lens attachment case 6 protrusion 7 Engagement part 8 protective frame 9 filters 10 slits 11 slits 12 grooves 13 groove 14 Upper and lower frames 15 top and bottom frame

Claims (4)

[Claims] 1. A strobe which is mechanically and electrically coupled to a camera and which flashes in conjunction with the operation of the camera, is arranged in front of a protective frame for protecting the front surface of the Fresnel lens of the strobe and the Fresnel lens. A strobe lens attachment structure comprising a lens attachment housing detachably attached to the strobe optical system housing. 2. The strobe lens attachment structure according to claim 1, wherein the lens attachment housing has a structure in which a filter is attached to a front side and a protective frame is attached to a rear side thereof. 3. The strobe lens attachment structure according to claim 1, wherein the lens attachment case has a structure in which a protective frame is attached to the front and a filter is attached to the rear. 4. In a strobe which is mechanically and electrically coupled to a camera and flashes in conjunction with the operation of the camera, a protection for protecting a front surface of a Fresnel lens of the strobe against an optical system casing of the strobe. A strobe lens attachment structure comprising a frame and a lens attachment housing configured so that a filter arranged on the front surface of the strobe is replaceable and removable.