JP3398330B2 - Magnifying display - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnifying display device for magnifying and displaying characters, figures, handwritten characters and the like of newspapers and the like.

[0002]

2. Description of the Related Art Conventionally, various types of enlarged display devices have been developed and put into practical use. Among them, the one in which the image pickup device and the optical elements such as the mirror and the lens are integrated and incorporated into the case to form a reading unit can be formed in a small size. Therefore, the whole reading unit is formed in a small size that fits in the palm of the hand. This type of scanning unit traces the document to be read by this reading unit, and the electric signal output from the image pickup device is displayed on a display device such as a cathode ray tube located at a position where the user can easily see the image by enlarging the image of the document. The ones that have been used are often used.

The magnified display device described above has good operability and is convenient in that it can read characters such as newspapers and books.
When writing characters or the like to be an original on a sheet of paper or the like, it was extremely difficult to read the written characters and the like and display them in an enlarged manner because of the form of the reading unit.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned prior art, the present invention not only reads the printed characters of a newspaper and the like in an enlarged manner by a simple operation, but also enlarges the characters and the like written on a paper or the like. It is an object of the present invention to provide an enlarged display device capable of displaying.

[0005]

In order to solve the above-mentioned problems, the structure of the present invention has a case in which an image pickup element connected to a display means such as a cathode ray tube and a lens group are integrally formed. A first objective unit comprising a photoelectric conversion unit housed in a lens and a mirror for making an original image to be read incident on the lens group.
A second objective unit comprising a reading objective unit housed in a detachable case and a mirror for making an image of a character or the like written on a sheet incident on the lens group. A detachable case for the case of the electric conversion unit
It is characterized in that it comprises a writing objective unit housed in a scanner, and the two objective units are selectively attached to the photoelectric conversion unit.

When the writing objective unit is mounted on the photoelectric conversion unit and used, the case of the photoelectric conversion unit is held in a standing position on the stand in order to improve stability. It is desirable to do so.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a vertical sectional side view showing an enlarged display of newspaper characters and the like using an enlarged display device of an example of the present invention, FIG. 2 is a cross-sectional plan view of FIG. 1, and FIG. It is a vertical side view of the state in which it is displayed.

In the figure, A is a photoelectric conversion unit in which an image pickup device 1 connected to a display device (not shown) such as a cathode ray tube and a lens group 2 are integrally formed and housed in a case 3. B is equipped with light sources 4 on both sides, and the mirrors 5 and 5a for reading and reversing the characters and the like of the lower original E and incident on the lens group 2 and sending them to the image pickup device 1 are housed in the case 6. In the reading objective unit, the both cases 3 and 6 are configured to be connectable / disconnectable at a front end 3a and a rear end 6a of the both cases, for example, by a fitting type.

In FIG. 3, C includes a light source 7 and mirrors 8 and 8a for reading and reversing the characters written on the paper F and sending them to the image pickup device 1 through the lens group 2. The writing objective unit housed in 9
The case 9 is detachably formed on the case 3 at its ends 9a and 3a. In FIG. 3, D is a height of the symmetrical object unit C for writing, which holds the unit A stably in a standing posture when the objective unit C for writing is attached to the photoelectric conversion unit A for use. Is a stand for positioning above the paper F.

In the magnified display device of the present invention constructed as described above, when enlarging and displaying the characters and figures of an ordinary newspaper, as shown in FIG. 1, a reading objective unit is provided in the photoelectric conversion unit A. When B is mounted, the objective surface of the objective unit B is applied to the reading document E (newspaper etc.) and the light source 4 is turned on, the characters of the document E pass through the lens groups 2 via the mirrors 5 and 5a. It is sent to the image pickup device 1, converted into an electric signal, and enlarged and displayed on a display device (not shown) such as a cathode ray tube.

When the characters to be written on a sheet of paper are to be enlarged and displayed, the reading objective unit B is removed from the photoelectric conversion unit A, and the writing objective unit is added to the photoelectric conversion unit A. C is attached, and FIG.
As shown in FIG. 4, when writing characters or the like on the paper F, the written characters or the like are sent to the image sensor 1 through the lens group 2 via the mirrors 8 and 8a and converted into electric signals in the same manner as described above. It is enlarged and displayed on the display device such as. In this case, since the photoelectric conversion unit A is held on the stand D, the writing objective unit C can perform stable enlarged display without interfering with the hand H or the writing instrument P of the person who writes characters. it can.

Therefore, in the magnified display device of the present invention, the reading objective unit B and the writing objective unit C are selected according to need, and either one is attached to the photoelectric conversion unit A to be used for printing. It is possible not only to magnify and display the characters and the like of the original E that have been equalized, but also to magnify and display the writing state of the characters and the like that are written on the paper F.

[0013]

The present invention is as described above, and a photoelectric conversion unit in which an image pickup device connected to a display means such as a cathode ray tube and a lens group are integrally formed and housed in a case,
A first objective unit having a mirror for making an original image to be read incident on the lens group, the objective unit for reading being housed in a case detachable from the case of the photoelectric conversion unit, A second objective unit equipped with a mirror for making an image of a character or the like written on a sheet incident on the lens group, which is housed in a case detachably attached to the case of the photoelectric conversion unit. It consists of a writing objective unit,
Since the two objective units are selectively attached to the photoelectric conversion unit, the device is simple and small in size, so that it can be used as a hand-held type and can be easily operated, that is, the reading objective unit. By selectively mounting one of the writing and writing objective units on the photoelectric conversion unit, it is possible to display enlarged characters such as newspaper originals and enlarged characters such as letters and figures written on paper. It is extremely useful as a magnified display device. Also, when using the writing objective unit, as described above,
By holding the photoelectric conversion unit on the stand in a standing posture, stable magnified display is possible without the writing symmetrical object unit disturbing the writer.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a state in which characters and the like of a newspaper are enlarged and displayed using an enlarged display device according to an example of the present invention.

2 is a cross-sectional plan view of FIG.

FIG. 3 is a vertical cross-sectional side view showing a state in which a character or the like being written is enlarged and displayed.

[Explanation of symbols] A photoelectric conversion unit 1 Image sensor 2 lens groups 3 cases B Reading objective unit 4 light sources 5,5a Mira 6 cases C Writing objective unit 7 light source 8,8a Mira 9 cases D stand E Scanned original F writing paper

Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G06T 1/00 H04N 1/04 H04N 7/18 G03B 15/00

Claims (3)

(57) [Claims] 1. A photoelectric conversion unit in which an image pickup element connected to display means such as a cathode ray tube and a lens group are integrally formed and housed in a case, and a document image to be read is incident on the lens group. A first objective unit having a mirror,
A second objective equipped with a reading objective unit housed in a case detachably attached to the case of the photoelectric conversion unit, and a mirror for making an image of a character or the like written on a sheet enter the lens group. The objective unit comprises a writing objective unit housed in a case detachably attached to the case of the photoelectric conversion unit, and the two objective units are selectively converted into photoelectric conversion units. An enlarged display device characterized by being mounted. 2. The case according to claim 1, wherein when the writing objective unit is mounted on the photoelectric conversion unit and used, the case of the photoelectric conversion unit is held in a standing posture on a stand. Enlarged display device. 3. The enlarged display device according to claim 1, wherein the objective unit includes a light source for illumination.