JPS63221769A - Image scanner - Google Patents

Abstract

PURPOSE:To clearly observe a picture of film original in the standby position at film set by providing a reflecting plate reflecting a light of a light source onto a film original in the standby position. CONSTITUTION:A 45 deg. mirror 7 is placed above a fluorescent light 6 and a lens 8, a CCD linear image sensor 9 are arranged in the reflecting direction. A color filter 10 is arranged turnably on the disk at the front of the image sensor 9. Then the film placing plate 2 is fed in a direction of allow A along a guide shaft 3 to radiate a divergent light from the light 6 by the reflecting plate 15. As a result, the base 2 is moved in the direction of allow A and one line of the film 5 passing just above the light 6 is subjected to main scanning by the image sensor 9 to read the picture of the film.

Description

Detailed Description of the Invention [Industrial Application Field 1] This invention performs main scanning with a one-dimensional image sensor, and performs sub-scanning by moving the film original and a reading optical system relative to each other to input an image of the film original. Regarding image scanners that perform

L PRIOR TECHNOLOGY J Conventionally, there has been no dedicated image scanner for inputting images of film originals, but as an alternative, an adapter 2 has been attached to the television set 1 as shown in Figure 4. ing. This adapter 2 has an original platen 3, transmits light from an internal fan y'A4 through a film 5 placed on the original platen 3, reflects it on a mirror 6, and connects it to a television camera 1.
It is made to be incident on the

In addition, in a general image scanner that manually images a non-transparent original, the light from a light source is irradiated onto the document surface and the reflected light is input to an image sensor. It simply has the function of illuminating the surface of the document.

[Problems to be solved by the invention, 1. 'j ] When attaching the above adapter 2 to the TV camera 1 and inputting the image of the film 5, the film 5 on the document table 3 is lTe<I cannot see the film image clearly, so the film 5 is placed on the document table 3. It is difficult to determine which range of the film 5 should be placed at which input, and it is not easy to determine the image outline.

In addition, since the resolution of a television camera is less than 300 lines in the horizontal direction and sufficient resolution cannot be obtained, a one-dimensional image sensor using a CCD (charge coupled device) is used instead of the television camera 1 to obtain a high angle image. Using film i!
Even in the case of an image scanner for I, if the light source is used only for illuminating the document surface during scanning, as in conventional general image scanners, it is not easy to determine the image outline as described above. are similar.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide an image scanner that can easily determine the frame of an image of a film manuscript by hand.

Step 1 to solve problem F1 The present invention, which solves the above problems, performs main scanning with a one-dimensional image sensor, and performs sub-scanning by relative movement between the film original and the reading optical system to scan the film original. An image scanner that inputs images, and includes a reflector that reflects diverging light from a light source in a direction different from the divergent light that passes through the film document surface during scanning toward the film document in a standby position. (1η configuration).

[Effect 1 In the above configuration 1, the light from the light source is reflected by the reflector,
Since the film document in the standby position is irradiated, the image of the film document can be clearly seen, and image contours can be determined accurately.

[Embodiment] An embodiment of the present invention will be described below with reference to FIGS. 1 to 6'S3. Fig. f51 is a plan view showing the internal structure of the color image scanner 1 according to an embodiment of the present invention, and Fig. 2 is the same plan view. Reference numeral 2 denotes a film holder, and this film holder 2 is located at the 1jq section (left side in Figure 1) of the scanner body as shown in the figure when the reading operation surface is on standby, and when reading is carried out along the side shaft 3. It is movable in the direction of arrow (a). 2a is the reading window of film holder 2,
The value inside this reading window 2a is positive. Further, 4 indicates a transparent film holder (not shown in FIG. 2), and 5 indicates a film. A fluorescent lamp 6 is disposed as a light source below the film table 2 as it moves.

To explain the reading optical system, 1 of the fluorescent lamp 6
- A 45° mirror 7 is placed on the sword, and a lens 8 and a COD one-dimensional image sensor 9 are placed in the direction of its reflection power. A disc-shaped color filter 10 is rotatably disposed on the hand 11'lJ of the image sensor 9. The color filter 10 is rotationally driven by a motor 11 via a belt 12.

Sub-scanning drive system
An arm 13 is fixed to the side of the motor 11 (see FIG. 2). At the time of reading, the film holder 2 is driven by a screw 14 driven by a motor 11, and moves along the id shaft 3 as shown by the arrow (a).
sent in the direction. Although not shown in the drawing, the opposite side of the film tray 2 from the side shaft 3 is run by rollers.
It is supposed to be done.

In the present invention, the 45° diverging light of the fluorescent lamp 6 is directed toward the mirror 7, and the film holder 2 at the standby position is
A reflective plate 15 is installed to reflect the light toward the upper film 5. In this embodiment, the reflective plate 15 is a so-called retroreflective plate having a curved surface with a recessed surface. The fluorescent lamp 6 has a shape in which one end side extends near the lower surface of the fluorescent lamp 6.

The rI5 image scanner 1 described above puts a film 5 on the film stand 2 in the standby position, knocks down the film presser 4 to hold the film 5, and presses a start button (not shown) to start the film ii! The frame 2 moves in the direction of the arrow (A) and main scans one line of the film 5 that passes directly above the fluorescent lamp 6 with the CCD image sensor 9.
Perform glJ scanning by running and input film images! ? cormorant.

When setting the film 5 on the film stand 2, the film 5 is illuminated with light from the fluorescent lamp 6 reflected by the reflector 15, as shown in an enlarged view in FIG. Because it is bright and you can see the image clearly,
It is easy to determine the frame of the image, that is, the area of the film to be imaged, and it is also easy to select the film frames.

The shape of the reflection plate 15 is not necessarily limited to that shown in the drawings, but is set so that the film is well irradiated with reflected light depending on the positional relationship between the six fluorescent lamps and the film document in the waiting position.

Furthermore, although the embodiment uses a structure in which the film original moves, the present invention can be similarly applied to a fixed original type in which the film original is fixed and the reading optical system moves.

[Effects of the Invention] As explained above, according to the present invention, a reflector is provided that reflects the light from the light source toward the film original at the standby position, so when setting the film, the samurai can check the film original at the standby position. Images can now be seen clearly, making it easier to determine image boundaries and sort film frames.

[Brief explanation of drawings]

Fig. 1 shows a front view of an inno-2 degree scanner showing an embodiment of the present invention.
The figure is an enlarged view of the main part, and FIG. 4 is a V diagram showing a conventional example. 2...Film+7t b unit% 5...Film, 6...Fluorescent lamp (light source), 9...One-dimensional image sensor, 15...Reflector plate.

Claims (1)

[Scope of Claims] An image scanner that performs main scanning with a one-dimensional image sensor and performs sub-scanning by relative movement between the film original and a reading optical system to input an image of the film original, the image scanner comprising: a diverging light from a light source; What is claimed is: 1. An image scanner comprising a reflective plate that reflects divergent light in a direction different from the divergent light that passes through the surface of a film document during scanning toward a film document in a standby position.