JPH02226244A - film projection equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a transparent original reading device that irradiates a transparent original with light, reads the projected image, and outputs the image as one image information.

[Prior Art] Conventionally, as this type of device, there is one shown in FIG. 3, for example. In such a conventional example, when reading an image of a document, the document is placed with the image side facing down on document table glass 1114, illumination lamp 1108 illuminates the document, and the reflected light is transmitted to mirror 1109 and each other. An image is formed on a light receiving element array 1113 via reflecting mirrors 1110 and 1111 arranged at an angle of 906, and a lens 1112. Scanning of the original is performed using the illumination lamp 1108 and the mirror 11.
09 and reflecting mirrors 1110 and 1111, by scanning in the direction of the arrow at a speed of 2:1.

On the other hand, when reading a film image, the film projection unit 1100 is placed on the document table 1115, and the mirror 1106. A Fresnel lens 11.07 is placed on a document table glass 1114, and light emitted from a projection light source 1102 illuminates a film 1104 through a lens 1103.

The light from the illuminated film 1104 is transmitted to the projection lens 1
105. Mirror 1106. The image is projected onto a document table glass 1114 via a Fresnel lens 1107. The sleeve-shaped film 1104 is held between two film carriers (not shown) made of L-shaped metal plates, and is inserted and mounted in the G direction into the film projection unit 1too.

[Problem to be solved by the invention] However, in the above conventional example, since the document holding means can only be inserted into the loading section from one end side, the document image cannot be held at 90 degrees.
If it is necessary to rotate the original by 180° or 180°, etc., first remove the document holding means from the mounting section, and then
It was necessary to perform an operation of inverting the document itself with respect to the document holding means and holding it again. In particular, when editing and processing a scanned image and outputting it to paper using a printer, such as simple printing, the orientation of the image relative to the output paper must be changed frequently, which requires time and effort. However, there were some difficulties in operability.

[Means for Solving the Problems and Effects] According to the present invention, since the insertion opening for the holding means is provided at a position approximately 180° apart from the mounting member, it is possible to easily rotate the image.

[Embodiment] FIG. 1 shows a positive film carrier 1, a negative film carrier 20, and a magazine 50, which is an embodiment of the mounting member, as an embodiment of the document holding means.

The positive film carrier 1 has a basic structure, and holds a positive film slide 8 loaded with a slide mount in a gap formed between superposed structural plates 2 and 3. Between the structural plates 2 and 3, there is a member (abutting member) for the slide 8 so that it is positioned at the center of the image of the positive film slide 8 pushed in through the insertion opening 4 formed by the plates 2 and 3, or at the center of the opening 9. (not shown) is placed,
Further, a leaf spring (not shown) is arranged to bias and position the slide 8 toward the structural plate 3. The detection hole 7 is connected to both structural plates 2,
The detection holes 7 are arranged vertically and horizontally at the same pitch as the pitch distance P8 between each opening 9, and each detection hole 7 is at an equal distance from the center of the adjacent opening 9. .

By configuring the detection hole 7 in this way, the magazine 5
When the carrier 1 is inserted into the magazine 50, whether the carrier 1 or each opening 9 is set in the correct position of the opening of the magazine 50, whether vertically or horizontally.
It is possible to detect with the photodetecting element 51 within 0. At the left and right ends of the structure plate 2, there are protrusions 5 that protrude perpendicularly to the document surface. A partial recess 6 is formed in the protrusion 5 on a line extending from the center of each opening in the lateral direction of the positive film carrier l.

On the other hand, the negative film carrier 20 holds the negative film 29 by sandwiching a sleeve-shaped film 29 consisting of a plurality of frames of images between overlapping structural plates 21 and 22 forming its basic structure. Both structural plates 21 and 22 are rotatably connected by a hinge portion 23. The space between both structural plates 21 and 22 is rotated around the hinge part 23 to open the space, and the negative film 29 is positioned and loaded so as to hit the positioning protrusion (not shown) on the structural plate 22. When closed, the hook 25 on the structural plate 21 engages with the hole 24 in the structural plate 22, and both structural plates 21, 22
fixed for a while. At this time, the image of each frame of the negative film 29 corresponds to the position of each opening 30. The detection holes 26 pass through both structural plates 21 and 22 and transmit light, and are arranged vertically and at the same pitch as the pitch distance P2 between each opening 30.
Both sensing holes 26 are arranged laterally and each sensing hole 26 is an equal distance from an adjacent opening. The configuration of the detection hole 26 is the same as that of carrier l for positive film.
The light detection element 52 in the magazine 50 can detect the position at a position that is not the same as the position. Structural plate 2
There are protrusions 27 at the left and right ends of the paper 2 that protrude perpendicularly to the document surface. A partial recess 28 is formed in the protrusion 27 on a line extending from the center of each opening 30 in the lateral direction of the negative film carrier 20. Note that the positive film carrier 1 and the negative film carrier 20 have the same width in the transverse direction, and the protrusion amounts and widths of the protrusions 5 and 27 are also made equal to each other. Further, a click spring 53 in the magazine is depressed into four parts 6, 28 provided on the protruding parts 5, 27 of both carriers 1, 20, thereby determining the stopping position of each opening. When the carrier 1 for positive film and the carrier 20 for negative film are inserted from the insertion slots X and Y, the magazine 50 stores the carrier 1,
The carriers 1 and 20 are supported so that the films 8 and 29 held by the carriers 20, that is, the original documents, are fixed at the illumination position. The insertion opening X on the upper surface of the magazine is formed with relief shapes X1° and 27 for each of the protrusions 5 and 27 of the carrier, and the width thereof is larger than each of the protrusions 5 and 27. 50a is a projection window having the same function as the projection window 1100a provided in the film projection unit 1100, which is a component of a conventional reading device.

The other configuration of the transparent original reading device is the same as that of the conventional example shown in the third figure, and therefore the explanation thereof will be omitted.

According to the above configuration, it is possible to insert the magazine 50 into the magazine 50 with the insertion hole X and the negative film carrier 1 from the A end in the direction shown in the first figure, and the positive film carrier 1 can be inserted into the predetermined position at the click action position during insertion. It can be supported in position. It is also possible to rotate the illustrated positive film carrier 1 in a plane parallel to the document surface and insert it into the magazine 50 from the B end, and it can also be supported at a predetermined position. However, when trying to insert the carrier 1 into the magazine 50 with the document surface reversed, the protrusion 5 interferes with the upper right corner of the insertion slot X, preventing insertion. That is, it is possible to prevent the reading of an image with the front and back sides of the original surface reversed, which is a common mistake when using a transparent original. Similarly, the carrier 1 for positive film can be inserted into the insertion slot Y of the magazine 50 either from the A end or from the B end, as long as the original is oriented with its front and back sides as shown in Figure 1 maintained. , which can be supported in a predetermined position. Further, regarding the negative film carrier 20, the protruding portion 27
Since the amount of protrusion and the width of the carrier in the transverse direction are the same as for positive film carrier L, the same magazine 5
0, the same effect as in the case of the carrier 1 for positive film described above can be realized.

In this embodiment, for example, the carrier 1 for positive film is rotated 100% from the orientation shown in FIG.
,XA! , can be rotated by %.

In other words, for % rotation, insert from the A end into insertion slot Y, for % rotation, insert from the B end into insertion slot X, and then for % rotation, insert from the B end into insertion slot Y. Image rotation can be achieved.

[Other Examples] Left and right protrusions 5 and 2 of the carrier l and 20 shown in FIG.
7 has a substantially symmetrical shape with respect to the center of the carrier structure plate,
Although the cross section cut on the horizontal plane shows a so-called U-shape, the protrusion does not necessarily have to be symmetrical, and even if it is asymmetrical, the insertion opening of the magazine 50 will not be able to escape unless the original is front and back or reversed. It is only necessary to satisfy that there is no interference between the two protrusions. FIG. 2 shows an example of a carrier having such a shape, and 100° 102 is a cross-sectional view of a structural member that constitutes the film carrier and holds the film 101 therebetween. 103 is an insertion port.

Furthermore, although the shape of the insertion slot of the magazine prevents the carrier from being inserted into the slot with the original front and back reversed, it is also possible to prevent reverse insertion by providing an interference part inside the magazine 50. It is.

[Effects of the Invention] As described above, even if the orientation of the image needs to be rotated frequently, the document holding means, ie, the carrier, can be inserted and removed, and the operability is improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a main part of an embodiment of a carrier as a transparent document holding means in a transparent document reading device of the present invention, FIG. 2 is a sectional view of a main part of a carrier according to another embodiment of the present invention,

Claims (1)

[Scope of Claims] Transparent original holding means for holding a transparent original, an attachment member having an insertion opening and a projection window for the holding means, and to which the holding means is attached, the holding means In a transparent document reading device that reads a document projected from a projection window when the mounting member is mounted on the mounting member, approximately 180
A transparent document reading device characterized in that an insertion opening for the holding means is provided at a position separated by .degree.