JPS6128186Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an upper cover structure of a camera having a photoelectric conversion element such as a solar cell.

A photoelectric conversion electromotive force element such as a solar cell is attached to the top cover of the camera, and the electromotive force of the photoelectric conversion element normally charges the secondary battery to operate the camera's shutter, exposure control circuit, etc. ,
A camera that uses electricity charged in the above-mentioned secondary battery is being produced on an experimental basis.

By the way, when attaching the photoelectric conversion element to the top cover of the camera, it is important to keep in mind that the strength of the top cover will not be insufficient due to the incorporation of the photoelectric conversion element.
The light density inside the camera must be maintained reliably, and even if external force is applied, no force will be applied to the photoelectric conversion element itself.

The purpose of this invention is to obtain the necessary and sufficient mechanical strength, to ensure complete light density inside the camera, and to further ensure that even if an external force is applied to the photoelectric conversion element mounting part, the external force will not affect the photoelectric conversion element itself. It is an object of the present invention to provide an upper cover structure for a camera having a photoelectric conversion element which is prevented from being exposed to light.

The present invention will be explained below with reference to illustrated embodiments.

In FIG. 1, a photoelectric conversion unit 3 having a solar cell or the like is provided on an inclined surface 2 of an upper cover 1 for a single-lens reflex camera that covers a pentaprism.
is installed. The inclined surfaces 2 are formed on the left and right sides of the covering portion of the pentaprism, and the photoelectric conversion section 3 is attached to both inclined surfaces 2. The photoelectric conversion unit 3 is attached to a window hole drilled in the inclined surface 2, and the window hole is large in order to attach a photoelectric conversion element with as large an area as possible. .
Therefore, by drilling the window hole, the mechanical strength of the upper cover 1 is insufficient, and external force may be applied directly to the covering portion for the pentaprism, or a strobe light emitter may be attached to the accessory shoe 4 attached to the covering portion. If a moment is applied when attaching or detaching the upper cover, there is a risk that the upper cover may be deformed or damaged, and there is also a risk that external light may leak from the window hole. Therefore, in the present invention, a photoelectric conversion unit mounting structure as described below is used.

In FIGS. 2 to 5, the photoelectric conversion section 3 is
It has a photoelectric conversion element storage case 5 made of an opaque material and a transparent cover 6 to be placed over the case. The photoelectric conversion element storage case 5 is formed in the shape of a rectangular dish, and a photoelectric conversion electromotive force element 7 such as a solar cell is fixed to the inner bottom of the case 5 . The photoelectric conversion element 7 is made up of a large number of strip-shaped elements arranged side by side.
The electromotive force of each element 7 is taken out by a flexible printed board 8. The photoelectric conversion element storage case 5 has a cutout portion 5a for pulling out the printed board 8, and a collar portion 5 is provided on the outer periphery of the case 5 almost over the entire circumference excluding the cutout portion 5a.
b is formed. An embedded piece 9 is embedded in the cutout portion 5a after the printed board 8 is pulled out. A connecting piece 10 is fixed to the back of the embedded piece 9, and the piece 9 is connected to the case 5.
When embedded in the notch 5a of the case 5, the connecting piece 10 connects both ends of the collar 5b of the case 5. An engagement hole 5c is formed at a proper location on the inner surface of the case 5.

The transparent cover 6 is made so that most of it fits into the inner circumferential surface of the photoelectric conversion element storage case 5, and is formed with a protrusion 6a that falls into the engagement hole 5c of the case 5, and further has a collar portion 6b. is formed.

The case 5 and cover 6 described above can be attached to the upper cover 1 of the camera according to the following procedure. First, insert the outer periphery of the open end of the case 5 into the window hole of a predetermined size made in the inclined surface 2 of the upper cover 1.
Insert the inner surface of the window into the window, and press the collar 5b against the edge of the window hole. Next, you can see the outside of the top cover 1.
The transparent cover 6 is fitted along the inner surface of the case 5, and the protrusion 6a of the cover 6 is inserted into the engagement hole 5c of the case 5 using the elasticity of both the case 5 and the cover 6.
make it fall. Here, the case 5 and the cover 6 are integrated, and the brim 5b of the case 5 and the cover 6 are integrated.
The case 5 and the cover 6 are integrally attached to the upper cover 1 by sandwiching the edge of the window hole of the upper cover 1 with the flange 6b. Adhesive may be poured into the joint surface between the upper cover 1 and the case 5, the joint surface between the upper cover and the transparent cover 6, and the like.

According to the embodiment described above, the window hole made in the upper cover 1 is embedded in the photoelectric conversion element storage case 5 and the transparent cover 6, and the edge of the window hole in the upper cover 1 is connected to the case 5 and the cover. Since the upper cover 1 is sandwiched between the case 5 and the cover 6, the mechanical strength of the upper cover 1, which is reduced by making the window hole, is reduced by the case 5 and the cover 6.
This can be compensated for by the above, and can prevent the upper cover 1 from being deformed or damaged. Furthermore, since the outer peripheral surface of the opaque case 5 and the surface of the collar 5b that is perpendicular to the outer peripheral surface are joined to the edge of the window hole of the upper cover 1, light leakage can be completely prevented. Furthermore, the external force directly applied to the photoelectric conversion unit is
Since the external force is received by the surface of the upper cover 1 that is in contact with the photoelectric conversion element 8, the external force is prevented from being applied to the photoelectric conversion element 8, and damage to the photoelectric conversion element 8 can be prevented. In this way, the two photoelectric conversion sections attached to the two inclined surfaces 2, 2 of the upper cover 1 are connected by one flexible printed board 8 and introduced into a predetermined electric circuit.

By the way, inside the ceiling part 11 of the pentaprism covering part of the upper cover 1, as shown in FIGS. 5 to 7, there are an appropriate number of ribs 1 in the vertical and horizontal directions.
2 is formed. These ribs 12 are provided to more reliably reinforce the lack of strength of the upper cover due to the drilling of the window hole for mounting the photoelectric conversion unit, together with the embedding of the case 5 and cover 6. Note that the reference numeral 13 in FIGS. 6 and 7 indicates a window hole for attaching a photoelectric conversion unit.

The mounting structure of the photoelectric conversion element storage case and the transparent cover may be as shown in FIGS. 8 and 9. First, in FIG. 8, the transparent cover 16 is provided with a collar portion 16a and a protrusion 16b;
The photoelectric conversion element storage case 15 has the protrusion 16b.
The transparent cover 16 is inserted into the window hole made in the camera's upper cover 1 from the outside of the upper cover 1, and then the open edge of the case 15 is inserted into the upper cover. 1 from the inside of the transparent cover 16, and the engagement hole 15a and the protrusion 16b.
and are engaged with each other. According to this example, the window hole of the upper cover 1 is embedded by the transparent cover 16 to reinforce the upper cover 1, and the external force applied to the photoelectric conversion section is transmitted between the brim 16a of the transparent cover 16 and the upper cover 1. The open end surface of the photoelectric conversion element storage case 15 contacts the inner surface of the upper cover 1, thereby preventing light leakage.

Next, in the embodiment shown in FIG. 9, neither the opaque case 25 nor the transparent cover 26 for housing the photoelectric conversion element is provided with a flange, but an appropriate engagement hole is provided on the inner peripheral surface of the case 25. 25a, cover 2
A protrusion 26a to be engaged with the engagement hole 25a is formed on the outer peripheral surface of 6. After inserting the transparent cover 26 into the window hole made in the upper cover 1 of the camera, the case 25 is placed over the cover 26 so that the inner surface of the upper cover 1 can be seen, and the engaging hole 25a and the protrusion 26a are engaged with each other. I have let you. In this state, the open end surface of the case 25 comes into contact with the inner surface of the upper cover 1, so that the case 25 and the cover 26, which are substantially integrated, do not fall off to the outside of the upper cover 1. Next, a presser plate 27 is placed on the back of the case 25, and both ends of the presser plate 27 are fixed to the inner surface of the upper cover 1 of the camera with screws, etc., and the case 25 and cover 26 fall out inside the upper cover 1. It prevents According to this embodiment, the window hole of the upper cover 1 is embedded and reinforced by the transparent cover, and the contact surface between the upper cover 1 and the photoelectric conversion element storage case 25 improves light density. In addition, the external force on the photoelectric conversion unit is applied to the holding plate 27.
It will be received by.

The embodiments shown in FIGS. 8 and 9 have the advantage that the entire surface of the window hole in the upper cover can be effectively used as a light-receiving surface.

As is clear from the above explanation, according to the present invention, the edge of the window hole bored in the upper cover is sandwiched between the opaque case that houses the photoelectric conversion element and the transparent cover that covers this case, and the window hole is Because it is embedded, the necessary and sufficient mechanical strength is obtained, and the light density inside the camera is completely ensured.Furthermore, the transparent cover has an abutment that is the edge of the window hole and the outer surface of the upper cover. Since the surface is provided, it is possible to provide an upper cover structure for a camera having a photoelectric conversion element that prevents external force from being applied to the photoelectric conversion element itself even if an external force is applied to the photoelectric conversion element mounting part.

[Brief explanation of the drawing]

FIG. 1 is an external perspective view showing an embodiment of the present invention.
FIG. 2 is a front view showing a part of the photoelectric conversion element storage case in the above embodiment, FIG. 3 is a sectional view of the photoelectric conversion element mounting part in the above embodiment, and FIG.
FIG. 5 is a sectional view of the upper cover including the photoelectric conversion element mounting portion; FIG. 6 is a bottom view of the upper cover; and FIG. 6 is a cross-sectional view taken along line - in FIG. 6, FIG. 8 is a cross-sectional view showing another embodiment of the present invention, and FIG. 9 is a cross-sectional view showing still another embodiment of the present invention. 1... Upper cover, 3... Photoelectric conversion section, 5, 1
5, 25...Photoelectric conversion element storage case, 6, 1
6, 26...transparent cover, 7...photoelectric conversion element,
12...rib, 13...window hole.

Claims (1)

[Scope of utility model registration request] A window hole is made in the top cover of the camera, the edge of the window hole is sandwiched between an opaque case that houses the photoelectric conversion element, and a transparent cover that covers this case, and the window hole is embedded. An upper cover structure for a camera having a photoelectric conversion element, characterized in that an abutment surface is provided at the edge of the window hole and abuts against the outer surface of the upper cover.