Photography – With object illumination for exposure – Reflector detail
Reexamination Certificate
1999-08-31
2001-05-29
Perkey, W. B. (Department: 2851)
Photography
With object illumination for exposure
Reflector detail
C362S003000
Reexamination Certificate
active
06240255
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention relates to a strobe device, a lens-fitted film unit with the strobe device, and a production method of the strobe device.
Conventionally, a lens-fitted film unit on which a strobe device is equipped, is put to practical use. An outline structure of the strobe device of such the lens-fitted film unit is shown in FIG.
14
.
A light emitting section of the conventional strobe device shown in
FIG. 14
has: a strobe holding body
101
which has an opening portion on the front side, an accommodating portion in its inside portion, and a insertion hole
101
a
on its side wall; a reflector
102
which is provided with a reflecting surface to reflect the strobe light forward, and a hole
103
for inserting a light emitting tube
105
having an electrode
105
a
on a side portion; and a transmission window portion
104
made of a transparent material through which the strobe light is transmitted, the transmission window portion
104
being provided onto the strobe holding body
101
so as to cover the front of the reflector
102
.
In a production method of the strobe device, the following production process is adopted: after the reflector
102
has been accommodated in the strobe holding body
101
, the light emitting tube
105
is laterally inserted into the strobe holding body
101
via the insertion hole
101
a
, the hole portion
103
, and after the tube is fixed, the opening portion of the strobe holding body
101
is covered by the transmission window portion
104
.
However, in the case of the conventional strobe device described above, when the light emitting tube
105
is inserted into the strobe holding body
101
, because the light emitting tube
105
is inserted laterally, not from the front surface side of the strobe holding body
101
, but from the lateral direction whose angle is different by 90° from the front surface side, in the production process of the strobe device, only an assembling process of the light emitting tube
105
is different from other processes, which results in inferior assembling property of the strobe device, therefore the mass productivity is not increased, which is a problem.
SUMMARY OF THE INVENTION
The present invention is attained in view of the foregoing conditions, and the object of the present invention is to provide a strobe device which has excellent assembling property and is appropriate for mass production, and a strobe device of a lens-fitted film unit by which assembling property and mass productivity can be increased, and a production method of the strobe device.
(1) In an example of a strobe device of the present invention, a strobe device has: a reflector having a reflection surface which reflects a strobe light forwardly; a light emitting tube to emit the strobe light which has electrodes on both ends and is provided inside the reflector; and a transmission window portion which is provided in the front of the light emitting tube and through which the strobe light is transmitted, in which the reflector has openings, to mount the light emitting tube from the front of the reflector, on both side portions, and the light emitting tube is provided inside the reflector under the condition that the electrode portions of the light emitting tube are positioned outside the openings of the reflector.
(2) In another example of a strobe device of the present invention, the strobe device has: a strobe holding body having an opening portion on the front side and receiver portions whose side surface portions are opened toward the front; a reflector which has a reflection surface to reflect the strobe light forwardly, and openings on both side portions, and which is provided inside the strobe holding body; a light emitting tube to emits the strobe light which has electrode portions on both ends, and which is provided inside the reflector under the condition that the electrode portions of the light emitting tube are positioned outside the openings of the reflector and the receiver portions of the strobe holding body; and a transmission window portion through which the strobe light is transmitted, and which is provided on the opening portion of the strobe holding body.
According to these examples, because all of the reflector, light emitting tube, and transmission window portion can mount to the strobe holding body from the front surface side of its opening portion in the same mounting direction, a strobe device in which assembling property is good, and which is appropriate for mass production can be provided.
(3) In an example of a production method in the strobe device of the present invention, the production method has a step in which the light emitting tube to emit the strobe light which has electrode portions on both ends, is mounted inside the reflector having the reflection surface to reflect the strobe light forward, and having opening portions on both side portions, from the front of the reflector, and a step to mount the transmission window portion through which the strobe light is transmitted, on the front surface of the reflector, and the light emitting tube is mounted inside the reflector under the condition that the electrode portions of the light emitting tube are positioned outside the openings of the reflector.
According to the example of this production method, because all of a mounting process of the reflector into the strobe holding body, a mounting process of the light emitting tube into the strobe holding body, and a process to mount the transmission window portion on the opening portion of the strobe holding body, can be performed from the front surface side of the opening portion in the same direction, thereby, the production method by which the assembling property and the mass productivity of the strobe device can be increased, can be provided.
(4) Further, in still another example in the strobe device of the above-described Item (1), a strobe device has a strobe holding body which has the opening portion to mount the reflector from the front of the strobe holding body, and the receiver portions whose side surface portions are opened toward the front to mount the light emitting tube from the front; the reflector is provided inside the strobe holding body; the light emitting tube is provided inside the reflector under the condition that the electrode portions of the light emitting tube are positioned outside the openings of the reflector and the strobe holding body, and the dimension of the outer rim of the enlargement-opened portion of the front surface is larger than the inner rim of the opening portion of the strobe holding body when the reflector is not provide in the strobe holding body, and the reflector is provided inside the strobe holding body under the condition that the reflector is bent.
(5) Further, in another example of the strobe device in above-described Item (2), when the reflector is not provided in the strobe holding body, the dimension of the outer rim of the enlargement-opened portion of the front surface is larger than the inner rim of the opening portion of the strobe holding body, and the reflector is provided inside the strobe holding body under the condition that the reflector is bent.
(6) Further, in another example of the production method of the strobe device in the above-described Item (3), the production method comprises: a step in which the reflector is mounted inside the strobe holding body having the opening portion in the front surface, and receiver portions whose side surface portions are opened toward the front, from the front of the strobe holding body; a step in which the light emitting tube is mounted inside the reflector from the front of the reflector; a step in which a side plate having a recessed portion to cover at least a portion of the opening portion of the strobe holding body is mounted from the front of the strobe holding body; and a step in which the transmission window portion is provided in the opening portion of the strobe holding body, and in the production method, the light emitting tube is provided inside the reflector un
Bierman Jordan B.
Bierman, Muserlian and Lucas
Konica Corporation
Perkey W. B.
LandOfFree
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