JP2858267B2 - Film integrated camera with strobe - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disposable type film-integrated camera with a strobe.

[Conventional technology]

Generally, this type of film-integrated camera is configured by incorporating various photographing functions such as a lens, a shutter release button, and a winding mechanism in a housing in which a film is loaded in advance. In addition, they have the characteristics of being small and lightweight, are extremely inexpensive, and are rapidly spreading as disposable simple cameras.

With the spread and expansion of such film-integrated cameras,
In recent years, the need for higher functionality has begun to emerge. That is, it has been desired that a film-integrated camera having high-grade functions such as flash photography, zooming photography, and wide-angle photography be developed. However, these high-level functions are incompatible with the characteristics of a film-integrated camera that is concise, low-priced and versatile, and various development issues are emerging.

[Problems to be solved by the invention]

In order to achieve both the advanced shooting functions described above and the simplicity and low cost that are the characteristics of film-integrated cameras,
It is conceivable to configure a dedicated camera type simple camera whose use is limited to a specific field.

For example, at construction sites and various event venues, there are many situations where relatively large subjects must be photographed at a short distance, such as indoor exhibits, maps, paintings, and the entire wall surface. In this case, it is necessary to photograph a subject having a wide angle of view at a short distance with an appropriate amount of light. However, most of the conventional film-integrated cameras with a strobe have a narrow angle of view because most of them are designed for commemorating people.
There is a problem that the image cannot be taken at the close position and that the amount of the strobe light and its distribution are particularly inappropriate.

SUMMARY OF THE INVENTION An object of the present invention is to provide a film-integrated camera with a strobe, which is suitable for close-up photography.

[Means for solving the problem]

In order to achieve the above object, a film-integrated camera with a strobe of the present invention is a film-integrated camera in which an unexposed film is loaded in a camera body in advance.
When the strobe's projection angle is the projection angle θ ₁ on the taking lens side with respect to the principal projecting axis and the projection angle θ ₂ on the opposite side to the taking lens, θ ₁ > θ _2. It can be taken at any time.

〔Example〕

Hereinafter, the present invention will be described based on an embodiment shown in the accompanying drawings.

1 is an overall perspective view of a film-integrated camera of the present application, FIG. 2 is a cross-sectional view thereof, FIG. 3 is an explanatory view showing a difference in strobe light distribution between standard shooting and wide-angle shooting, and FIG. FIGS. 5 and 8 are explanatory diagrams showing a difference in light distribution between a conventional panel having a semi-cylindrical lens group and a flat panel, and FIGS. 6 and 9 are wide-angle projection by a lenticular panel. FIGS. 7 and 10 are explanatory diagrams of examples in which wide-angle light projection is realized by a Fresnel lens-shaped panel.

In FIG. 1, reference numeral 1 denotes a camera main body of the film-integrated camera of the present invention. The main body 1 is formed of a plastic housing and includes a spool chamber S, a patrone chamber P, and a film F therein. The main body 1 is covered with a carton K made of paper, and by printing a predetermined design on the carton K, an appearance suitable as a disposable camera can be obtained.

Reference numeral 2 denotes a shutter release button. The button 2 is provided at an appropriate position on the upper surface of the main body 1 so that a charged shutter (not shown) can be triggered. Here, the button 2 is made larger than a shutter release button of a normal film-integrated camera or a single-lens reflex camera, and for example, the button can be pressed even with a work glove or a leather glove. ing. That is, when the button 2 is constituted by a circular button, its outer diameter is 15 to
It is about 30mm.

Reference numeral 3 denotes a hoisting knob, and the hoisting knob 3 is provided on the back surface of the main body 1 so that a part thereof protrudes. Like the shutter release button 2, the wind-up knob 3 is larger than the wind-up knob of a normal film-integrated camera or a single-lens reflex camera, and can be operated even with gloves. Further, it is more preferable that the knob 3 is made of plastic in a color different from that of the main body 1 so that the knob 3 can be easily viewed and operated.

Reference numeral 4 denotes a photographing lens. The photographing lens 4 includes a wide-angle lens having a focal length of 25 mm or less, and is configured by a unit that can be mounted on the main body 1 so that a wide range of the scene can be photographed. Further, the photographing lens 4 is set to a pan-focus system in which an optimum focus position is within a range of 1 to 5 m, so that a short-distance and large-sized subject can be photographed with proper focus without performing focus adjustment. Has become. That is, at a construction site or various event venues, which are the main applications of the camera of the present invention, the entire view of the site can be easily photographed without being bothered by focus adjustment and framing setting work.

Reference numeral 5 denotes a hood. The hood 5 is provided on a side of the taking lens 4 near the button 2. That is, when the photographer performs a release operation while wearing gloves or the like, the photographing lens 4 is protected so that the fingertip (especially the middle finger or ring finger of the right hand) does not enter the photographing field of view.

Reference numeral 6 denotes a finder, and the finder 6 is formed of a transparent through hole provided at an appropriate position on the upper portion of the main body 1.

Reference numeral 8 denotes a strobe light emitting section, and the strobe light emitting section 8 including its peripheral circuit 8a is disposed in a flat space defined by a depth difference (R-r) between the spool chamber S of the main body 1 and the patrone chamber P. . The strobe light emitting unit 8 is configured as a wide-angle strobe, and can irradiate the entire photographing area of the photographing lens 4 composed of a wide-angle lens. In other words, the transparent panel T of the conventional strobe light emitting section 8 has a small lens group in a back side (strobe lamp L side), and regulates the strobe light emission of the lamp L in the right, left, up and down directions. On the other hand, the transparent panel T of the strobe light emitting section 8 in the film-integrated camera of the present invention is formed of a flat panel, and can project light at a wide angle in the horizontal direction and the vertical direction (FIGS. 5 and 8).

Further, the transparent panel T is formed into a single lens as shown in FIGS. 6 and 9 or a Fresnel lens as shown in FIGS. The angle may be widened.

As described above, the irradiation area of the strobe light emitting unit 8 is, of course, configured to cover the entire photographable area, but the shape of the reflector H is appropriately changed so that the irradiation shape is changed to the image on the film surface. It is more desirable that the frame is configured to be a rectangle similar to the frame. For example, even if the main light projecting axis of the strobe light emitting unit 8 is parallel to the photographing optical axis, since the light projecting angle differs in the left-right direction, it is desirable that the shape of the reflecting umbrella H also has a corresponding left-right asymmetry. Assuming that the right projection angle (projection angle on the taking lens side) θ ₁ and the left projection angle (projection angle on the side opposite to the taking lens) θ ₂ , θ ₁ > θ ₂ in the example of FIG. I have. By controlling the irradiation shape, the strobe light (and peripheral circuits) of the light emitting unit 8 can be saved.

Since the film-integrated camera of the present application is intended for short-distance photographing, the strobe light emitting section 8 has a guide number G smaller than that of an ordinary strobe for a small camera. 9 is a battery room.

In the above embodiment, the photographer grasps the main body 1 of the film-integrated camera of the present application, performs rough framing with the finder 6 being aimed at a large object at a short distance, and holds the shutter release button 2 while wearing gloves or the like. Press. At this time, since the photographing lens 4 is set to the pan focus, the focusing operation is unnecessary. In addition, shooting lens 4
Is illuminated by a wide-angle strobe light emitting portion of a strobe light emitting portion 8 composed of a lamp L, a reflector H, and a transparent panel T, so that maps, pictures, and structures can be extremely easily operated. It can record and shoot clear and accurate.

〔The invention's effect〕

As described above, according to the present invention, in a film-integrated camera with a strobe, when the strobe projection angle is a projection angle θ ₁ on the taking lens side with respect to the principal axis of projection and a projection angle θ ₂ on the opposite side to the taking lens, The feature is that θ ₁ > θ ₂ , so that there is an excellent effect that short-range flash photography can be performed properly and reliably.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a film-integrated camera of the present invention, FIG.
FIG. 3 is a cross-sectional view thereof, FIG. 3 is an explanatory diagram showing a difference in strobe light distribution between standard photographing and wide-angle photographing, FIG. 4 is an explanatory diagram showing a difference in right and left strobe light projecting angles, and FIG. 5 is a kamaboko lens. FIG. 6 is a cross-sectional view showing the difference in light distribution between a conventional panel having a group and a flat panel, FIG. 6 is a cross-sectional view of an example in which wide-angle light projection is realized by a lenticular panel, and FIG. 7 is a wide-angle view by a Fresnel lenticular panel. FIG. 8 is a longitudinal sectional view showing the difference in light distribution between a conventional panel having a semi-cylindrical lens group and a flat panel, and FIG. 9 is a sectional view showing a wide-angle light projection by a lenticular panel. FIG. 10 is a longitudinal sectional view of an example in which wide angle projection is implemented by a Fresnel lens-shaped panel. 1 Camera body 2 Shutter release button 3 Winding knob 4 Photographing lens 5 Cover 6 Viewfinder 8 Strobe flash unit 8a Strobe peripheral circuit 9 Battery room P Chamber S: Spool chamber F: Film T: Transparent panel H: Reflective umbrella L: Strobe flash lamp

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Minoru Ito 1-26-2 Nishi Shinjuku, Shinjuku-ku, Tokyo Inside Konica Corporation (56) References JP-A-3-55534 (JP, A) JP-A Heisei 3-194529 (JP, A) JP-A-2-273729 (JP, A) JP-A-62-188101 (JP, A) JP-A-57-164720 (JP, A) (58) Fields investigated (Int. Cl. ^6, DB name) G03B 17 / 02,17 / 04 G03B 15/05

Claims (1)

(57) [Claims] 1. A pre-film-integrated camera unexposed film in the camera body is loaded, the projection angle of the flash, the light projection angle theta ₁ of the photographing lens side with respect to the light projecting _spindle, opposite side of the photographic lens A film-integrated camera with a strobe, wherein θ ₁ > θ ₂ when the projection angle θ ₂ is