JPS5933006Y2 - cloud sketch imager - Google Patents

Description

[Detailed description of the invention] This invention relates to a cloud sketch imager that can project the shape of a cloud and print the image onto photosensitive paper for daylight photography. The image of the clouds that appears on the screen plate is easily transferred to the transparent plate that is superimposed on the screen plate, and after this copying, a photosensitive paper is inserted between the screen plate and the transparent plate, and the image is transferred from the transparent plate side. To provide a cloud sketch imager capable of printing a cloud sketch drawn on the writing surface of a transparent plate onto the photosensitive paper by exposing it to sunlight.

Hereinafter, one embodiment of this invention will be explained with reference to the drawings.
The housing has an opening 4 on the rear surface, and a lens opening 6 in which a convex lens 5 for imaging is incorporated is provided in the inclined front portion 3.

Although not shown in the figure, a shutter mechanism that is manually opened and closed may be provided at the lens opening 6.

Reference numeral 7 denotes a projection screen plate fitted into the inclined rear opening 4 of the housing 1, which is made of a translucent plastic plate with an inner surface 7a having a fine matte surface so that images of clouds can be projected.
It is attached by fitting the frame-shaped peripheral portion 7b into the opening 4 as shown in FIG.

Note that a light shielding plate 8 is provided at the inclined top end of the projection screen plate 7.
An insertion groove 9 is provided for erecting the.

Reference numeral 10 denotes a reflecting mirror fixed at the inner bottom of the housing 1 with an optical axis angle θ (for example, θ=35°) to reflect the light incident on the lens toward the screen plate 7 side, and the light incident on the lens is reflected as shown in FIG. It is reflected as shown, and an image f of the cloud is projected onto the screen plate 7 as shown in FIG.

Reference numeral 11 denotes a transparent plate having a protruding peripheral edge 11a that is removably fitted onto the projection screen plate 7, and a writing surface 11b on which a cloud image f can be written with a writing instrument such as a water-based ink pen. It may also be installed so as to be pivoted to the frame edge of the screen plate 7 so as to be openable and closable.

Reference numeral 12 indicates photosensitive paper for daylight photography inserted between the screen plate 7 and the transparent plate 11.
2 is not inserted when the cloud image f is copied onto the writing surface 11b of the transparent plate 11.

Since the cloud sketch imager of this invention has the structure described above, it has the following effects.

(1) If the housing is installed so that the lens opening 6 faces the cloud without the photosensitive paper 12 inserted and set, the cloud image f
is reflected on the screen plate 7, so by superimposing the transparent plate 11 on top of this sufnon plate 7, the cloud image f can be easily and accurately drawn on the writing surface 11b of the transparent plate 11 using a water-based ink pen or the like. can be transcribed.

(2) After sketching the cloud image f on the transparent plate 11, a photosensitive paper 12 for daylight photography is placed between the transparent plate 11 and the screen plate 7 so that the photosensitive surface faces the transparent plate 11.
If you set the orientation of the housing 1 so that sunlight hits the transparent plate 11 in this state, the writing surface 11 of the transparent plate 11
The cloud image f drawn in b can be printed on the photosensitive paper 12, and by developing this photosensitive paper 12, a five-light photograph can be obtained.

(3) The above-mentioned housing 1 has a front part 3 and a rear opening 4 which are inclined in the shape of a mountain with respect to the horizontal installation surface 2, and a convex lens 5 for imaging is incorporated into the lens opening 6 of the inclined front part 3. Since the screen plate 7 and the transparent plate 11 are arranged in an inclined state in the inclined rear opening 4, clouds appearing in the sky when the housing 1 is installed can be directly reflected on the inclined screen plate 7. Moreover, the cloud image f reflected on the screen plate 7 can be sketched on the writing surface 11b of the transparent plate 11 in a comfortable posture.

[Brief explanation of the drawing]

FIG. 1 is a central longitudinal cross-sectional view showing a cloud sketch imager according to an embodiment of this invention, and FIG. 2 is a right side view of FIG. 1. 1... Housing, 2... Installation surface, 3...
... Slanted front part, 4... Slanted rear opening, 5
...Convex lens, 6... Lens opening, 7.
...Projection screen board, 8... Light shielding plate,
10...Reflector, 11...Transparent plate, 1
1 b... Writing surface, 12... Photosensitive paper,
f... Image of a cloud.

Claims (1)

[Scope of utility model registration request] A casing having front and rear openings that are inclined in the shape of a mountain with respect to a horizontal installation surface, and a lens opening in which a convex lens for imaging is incorporated in the slanted front part, and an inclined rear opening of this casing. A screen plate onto which an image of a cloud is projected, a reflector placed at the inner bottom of the housing at an optical axis angle that reflects the incident light from the lens toward the screen plate, and a screen plate for writing with a water-based ink pen or the like. a transparent plate having a writing surface and removably or removably installed on the projection screen plate;
This cloud sketch imager allows you to print cloud sketches drawn on the writing surface of this transparent plate onto photosensitive paper for daylight photography.