JPH0490272A - Picture input device - Google Patents

Abstract

PURPOSE:To attain pickup of a negative and a positive film even when a transmission illumination device is not separately employed by making a position of a light source with respect to an original platen adjustable and providing a 1st position to light the original platen and a 2nd position used for a transmission illuminance light source to the light source. CONSTITUTION:A lighting switch 18 of a picture input device is turned on, lamps 6c, 7c of illumination devices 6, 7 are lighted as luminous sources for transmission illumination, then a negative film or a positive film desired to be picked up is placed on a transmission illuminance original platen 8, and the size of a picture and its white balance or the like is adusted by an operation panel 19 provided in front of the original platen 5. Moreover, when it is desired to pick up a negative film with inversion, a negative/positive inversion button in the operation panel 19 is operated. Moreover, the transmission illuminance original platen 8 is provided with a couple of film fixing plates to apply negative or positive film fixing and curl correction.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an image input device, and more specifically, an image input device in which a light source that illuminates a document placed on a document table can also be used as a light source for transmitted illumination. Regarding equipment.

[Conventional technology]

Traditionally, electronic OLEDs have been used to photograph originals placed on a document table using a video camera, and to reproduce the camera output on a monitor or project it onto a screen using a projector.
An image input device called HP is known.

6 to 8, the structure of a conventional image input device of this type will be explained in detail. FIG. 6 is a perspective view of the lamp, FIG. 7 is a schematic cross-sectional view of the lamp case, and FIG. 8 is a side view of the lamp during negative and body film photography.

6 and 7, 25 is a lens, 26 is a camera section, 27 is an upper part of the frame, 28 is a lower part of the frame, 29
30.31 is a document table, and 30.31 is an illumination device. The lens 25 is attached to a camera section 26, and the camera section 26 converts the imaging light from the document on the document table 29, which is incident through the lens 25, into an electrical signal.

Further, the camera section 26 and the frame upper part 27 are connected to the joint section 3.
It is supported by 2. The upper frame 27 and the lower frame 28 are pivotally supported by a joint 33 so as to be rotatable within a certain angle range, and the lower frame and the document table 29 are similarly supported.
is pivotally supported by a joint portion 34 so as to be rotatable within a certain angular range, so that the positional relationship between the camera portion 26 and the document table 29 can be adjusted.

Incidentally, the angle of the camera section 26 with respect to the frame upper part 27 can be variably adjusted by operating a button A35. Similarly, the angle of the upper frame 27 relative to the lower frame 28 can be variably adjusted by operating a button B36. The angle of the lower frame 28 relative to the document table 29 can be variably adjusted by operating a button C37.

The illumination devices 30.31 illuminate the document placed on the document table 29.
31 are lamp cases 30a, 31a, reflection plate 30b,
31b, lamps 30c, 31e, support shaft 30d, 3
1d. The reflective plates 30b, 31
b and the lamps 30c, 31c are provided in the lamp cases 30a, 31a as shown in FIG. The light is indirectly irradiated from the openings of the lamp cases 30a and 31a.

The lamp cases 30a, 31a are connected to the support shaft 30.
The supporting shafts 30d and 31d are respectively supported by shafts on their distal ends, and are rotatable within a certain angular range in the direction of the arrow in FIG. Each of them is pivotally supported and is rotatable within a certain angular range in the direction of arrow j in FIG. Furthermore, these support shafts 30d,
31d are each equipped with a free stop mechanism so that they can be adjusted to any angle.

A power switch 38 for the image input device main body and a lighting switch 39 for the illumination device 30 and 31 are provided on the side surface of the document table 29, and an operation panel 4 is provided on the front surface.
0 is set.

Next, the operating state for reading a document using the image input device having the above-described configuration will be described. First, when photographing an opaque original such as a copy original, the power switch 38 is turned on in the state shown in FIG.
When the camera section 26 is put into operation, it becomes possible to take pictures. The object 41 placed on the document table 29 is read by the camera section 26, and the imaged screen of the object 41 is
The image is displayed on a monitor (not shown) connected to the image input device.

If the illumination above the document table is dark and it is difficult to see the image on the monitor, turn on the illumination switch 39.
The illumination devices 30 and 31, which are arranged at a position to illuminate the document table 29 from above, are turned on, and the document on the document table 29 is illuminated and photographed.

Next, with reference to FIGS. 6 and 8, a detailed description will be given of the time of photographing transparent originals such as negative and positive films. In FIG. 6, the camera unit 26 is rotated in the direction of arrow e by operating the button A35, and the frame upper part 27 is rotated in the direction of the arrow g by operating the button B36. 26 is fixed in a close-up position. When photographing negative and positive films, as shown in FIG. 8, it is necessary to use transmitted illumination to illuminate the film from below. is placed on the document table 29.

Next, the power switch 43 provided in the body of the transmitted illumination device 42 is turned on, and an illumination lamp (not shown) provided in the body of the transmitted illumination device is turned on.

Then, a negative or positive film 44 to be projected is placed on the transmitted illumination device 42, and the image size, white balance, etc. are adjusted using the operation panel 40 provided in front of the document table 29. Further, when it is desired to invert and display a negative film, the negative and positive invert buttons on the operation panel 40 are operated.

Referring to FIG. 6, the storage state will be explained in detail.

When storing, first rotate the illumination device 30 in the direction of arrow j, fold it until the lamp case 30a hits the document table 29, then rotate the illumination device 31 in the direction of arrow j, and the illumination of the illumination device 31 It is folded until the shaft 31d hits the lighting shaft 30d of the lighting device 30. Next, the user operates the button A35 to rotate the camera unit 26 in the direction of arrow f and adjust it to the storage position.

Next, by operating the button B36, the frame upper part 27 is further rotated in the direction of arrow g from the close-up position to the storage position.

Finally, the button C37 is operated to rotate the lower frame 28 to the storage position and return it to the document table 29. The storage state is such that it can be easily carried.

Further, in order to prevent malfunction, the button C37 cannot be operated unless the frame upper part 27 is returned to the storage position.

Furthermore, in order to prevent sudden falls during rotation, each joint is configured to have friction only when rotated in the storage direction.

[Problems to be Solved by the Invention] As mentioned above, the above-mentioned image input device is inconvenient because it is necessary to prepare a transmissive illumination device separately from the main body of the image input device when photographing negative and positive films. It's the economy.

Furthermore, it is necessary to prepare a separate storage space for the transmitted illumination device, which poses management problems when not in use.

Furthermore, since the transmissive illumination device is used by being placed directly on the document table of the image input device, there is a possibility that scratches, dirt, etc. may be added to the document table. Furthermore, since the main body of the transillumination device is merely placed on the document table and is not fixed, the transillumination device moves during film photography, resulting in a time-consuming operation.

In view of the above-mentioned background, an object of the present invention is to provide a human-powered imaging device that is economical and easy to use.

[Means for solving problems]

An image input device according to the present invention includes a light source that illuminates a document table, the image input device including a first position in which the position of the light source with respect to the document table can be adjusted and the light source illuminates the document table; and a second position used as a light source for transmitted illumination, so that the light source that illuminates the document table can be used as a light source for transmitted illumination.

[Effect]

The image input device according to the present invention allows the light source that illuminates the document table to be used as a light source for transmitted illumination, so that it is possible to photograph negative and positive films without using a separate transmitted illumination device. and improve usability.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An image input device according to an embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a perspective view thereof, FIG. 2 is a schematic sectional view of the lamp case, and FIG. 3 is a perspective view of the lamp case when photographing negative and positive films.

In FIGS. 1 and 2, 1 is a lens, 2 is a camera section, 3 is an upper part of the frame, 4 is a lower part of a frame, 5 is a document table,
6 and 7 are illumination devices, and 8 is a transmissive illumination type document table using a diffuser plate or the like that can uniformly transmit light.

The lens l is attached to the camera section 2,
The camera section 2 converts imaging light from a document on the document table 29, which is incident through the lens 1, into an electrical signal. Further, the camera section 2 and the frame upper part 3 are pivotally supported by a joint section 9. The frame upper part 3 and the frame lower part 4 are pivotally supported by an articulated part 10 so as to be rotatable within a certain angle range, and similarly, the frame lower part 4 and the document table 5 are pivotally supported by an articulated part 11. The positional relationship between the camera section 2 and the document table 29 can be adjusted.

Further, the camera section 2 can be operated by operating the button AI2.
The angle with respect to the frame upper part 3 can be varied. Similarly, the upper part 3 of the frame has a button B.
By operating 13, the angle with respect to the lower part 4 of the frame can be variably adjusted. The angle of the lower frame 4 with respect to the document table 5 can be variably adjusted by operating a button /C14.

Furthermore, the transmitted illumination type document table 8 is arranged to be housed in a storage section 24 provided at the lower part of the document table 5.

The illumination devices 6 and 7 illuminate the document placed on the document table 5, and the illumination devices include lamp cases 6a and 7a, reflectors 6b and 7b, and lamps 6c and 7c.
, support shafts 6d, 7d, the reflecting plates 6b, 7b and the lamps 6c, 7c are provided inside the lamp cases 6a, 7a as shown in FIG. The light emitted from the lamp cases 6a, 7a is irradiated directly or indirectly through the reflectors 6b, 7b from the openings of the lamp cases 6a, 7a. The lamp case 6a, ? a is the support shaft 6d.

7d, respectively, and are rotatable within a certain angular range in the direction of the arrow in FIG. 2, and are further provided with a free stop mechanism.

Further, the base end sides of the support shafts 6d and 7d are respectively pivotally supported behind the document table 5, and are rotatable within a certain angular range in the direction of arrow i in FIG. 2, and are further provided with a free stop mechanism. The state shown in FIG. 1 and the state shown in FIG. 3 are possible.

Each of the lamp cases 6a and 7a is provided with a pair of four-shaped fixing claws 15. The fixing claws 15 are formed on the side surfaces of both the lamp cases 6a and 7a so that they are located on the upper side when the lamp cases 6a and 7a are rotated and returned to a position close to the document table 5. Furthermore, the opening 16 of the fixed claw 15
has a width equal to or greater than the plate thickness of the transmitted illumination type document table 8, and when the lamp cases 6a and 7a are in the position shown in FIG. (It is structured as follows.

A power switch 17 for the main body of the image input device and a lighting switch 18 for the lighting devices 6 and 7 are provided on the side surface of the document table 5.
is provided, and an operation panel 19 is provided on the entire surface.

Next, the operating state for reading a document using the image input device having the above-described configuration will be described.

First, when photographing an opaque original such as a copy original, the power switch 17 is turned on in the state shown in FIG. 5 is read by the camera unit 2, and the imaged screen of the subject 20 is
The image is displayed on a monitor (not shown) connected to the image input device. When the illumination on the document table 5 is dark and it is difficult to see the image on the monitor, the illumination switch 18 is turned on and the illumination device 6 is placed in a position to illuminate the document table 5 from above. 7 is turned on to illuminate the document on the document table 5 and take a photograph.

Next, with reference to FIGS. 1, 3, and 4, a detailed description will be given of the time of photographing transparent originals such as negative and positive films.

First, when photographing negative and positive films, it is necessary to use transmitted illumination to illuminate the film from below, but conventionally, it has been necessary to prepare a transmitted illumination device separately from the image input device.

Here, it will be explained that it is possible to photograph negative and positive films without preparing the transmitted illumination device.

In FIG. 1, the button AI2 is operated to rotate the camera unit 2 in the direction of arrow a, and the button B
13 to rotate the frame upper part 3 in the direction of arrow C and fix the camera section 2 in the close-up position. The illumination device 6 is rotated and returned to near the document table 5, and the illumination device 7 is also rotated and returned to the vicinity of the document table 5.

In FIG. 3, the transmitted illumination type document table 8 stored in the lower part of the document table 5 is taken out, and one side of a pair of fixing holes 21 provided at both ends of the transmitted illumination type document table 8 is fixed.
Hook it on a pair of fixing claws 15 formed on the lamp case 7a of the lighting device 7, and then insert the fixing hole 21 on the other side.
It is hooked and fixed to a pair of fixing claws 15 formed on the lamp case 6a.

In FIG. 4, at this time, the illumination devices 6 and 7 are moved in the folding direction by the fixed width e of the fixing holes 21 provided at both ends of the transmitted illumination type document table 8 and the fixing claws of the lamp cases 6a and 7a. The device is in a locked state, and the height d from the document table 5 to the transmitted illumination type document table 8 is fixed. At this time, the illumination devices 6 and 7 are in a non-contact state at positions close to the document table 5.

In FIG. 3, the light switch 18 of the image input device is
Turn on the lamps 6c and 7c of the lighting devices 6 and 7.
is turned on as a light source for transmitted illumination, and the negative or positive film 22 to be imaged is placed on the transmitted illumination type document table 8, and the image size, white, etc. Adjust the balance etc. Further, when it is desired to invert and project a negative film, the negative and positive inversion buttons in the operation panel 19 are operated.

Further, the transmitted illumination type document table 8 is provided with a pair of film fixing plates 23, and is configured to fix a negative or positive film and perform curl correction.

In FIG. 1 and FIG. 5, the storage state will be explained in detail.

When storing, first rotate the illumination device 6 in the direction of arrow i, fold it until the lamp case 6a hits the document table 5, and then rotate the illumination device 7 in the direction of arrow i to support the illumination device 7. It is folded until the shaft 7d touches the support shaft 6d of the lighting device 6. Next, press the button A1
2 to rotate the camera unit 2 in the direction of the arrow and adjust it to the storage position.

Next, by operating the button B13, the frame upper part 3 is further rotated in the direction of arrow C from the close-up position, and adjusted to the storage position.

Finally, the button C14 is operated to rotate the lower frame 3 to the storage position and return it to the document table 5.

The stored state is as shown in Fig. 5, and the structure is such that it can be easily carried.

Further, in order to prevent malfunction, the button C14 cannot be operated unless the frame upper part 3 is returned to the storage position.

Furthermore, each joint is configured to have friction only when it is rotated in the storage direction to prevent it from falling during rotation.

〔Effect of the invention〕

As explained above, according to the present invention, since the light source that illuminates the document table can be used as a light source for transmitted illumination, it is economical and does not require a separate transmitted illumination device when photographing negative and positive films. There is no need to consider management issues or scratches or dirt on the document table when the document is not in use.

Furthermore, the transilluminated document table is fixed during use, and negative and positive films can also be fixed on this document table.
It is possible to obtain an image input device that is easy to use and is capable of photographing negative and positive films.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an image input device according to an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view of its lamp case, and FIGS.
The figures are a perspective view and a schematic front view of the camera when shooting negative and positive films, Figure 5 is a perspective view of the camera when it is stored, Figure 6 is a perspective view of a conventional image input device, and Figure 7 is a cross-section of the lamp case. The schematic diagram and FIG. 8 are side views when photographing negative and positive films.・Lens, camera section, upper frame, lower frame, manuscript table, illumination device, transilluminated manuscript table, fixing claw, fixing hole, storage part man / Mouth 4 figure? 4 and i-ray diagram number

Claims (4)

[Claims] (1) In an image input device equipped with a light source that illuminates a document table, the position of the light source with respect to the document table is adjustable, and the light source is placed at a first position that illuminates the document table, and a light source for transmitted illumination is provided. and a second position used as an image input device. (2) The image input device further includes support means for fixing the light source in a position close to the document table and out of contact with the document table when the light source is used as a light source for transmitted illumination. An image input device according to claim 1, characterized in that: (3) The image input device according to claim 2, wherein the image input device further includes a transmissive illumination type document table, and the light source has a fixing member that supports the transmissive document table. Device. (4) The image input device has a storage section that stores the transparent document table.
Image input device described in Section 2.