JPS58150945A - Electronic projector - Google Patents

Abstract

PURPOSE:To obtain an electronic projector which is compact and easy to operate, by providing the 1st and the 2nd projecting means for projecting light on an image pickup means, and processing an obtained electric signal at a signal processing part. CONSTITUTION:To project a transparent object of projection, the object is mounted on an object base 2 and a luminaire 8 is turned on. Light from the luminaire 8 is coupled with an image pickup plate 4 through the object and a lens part 3 and converted into the electric signal corresponding to information on the object of projection before being supplied to the signal processing part 5. The TV signal obtained through the conversion of the processing part 5 is supplied to a receiver 10 to project the contents of the object. Further, it is supplied to a VTR11 and a copying machine 12 to record and copy the contents. To project a book, etc., light from luminaires 61 and 62 is reflected by the object and coupled with the image pickup plate 4, and similar processing is carried out, but the processing part 5 is provided with a circuit which converts left-right sending information into specific-direction information to process the signal.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic projector, which extracts an electrical signal corresponding to an object and can record and store information about the object on magnetic recording or paper. The purpose is to provide

Conventional so-called optical projectors emit light onto a subject, such as a transparent film, from below and focus the subject on the top surface of the subject. It is limited to a structure in which the light from the light source passes through the object.

However, it is not possible to project non-transparent objects such as books, and the range of use is limited, making it difficult to use. or,
This device had the disadvantage that the image could only be seen when it was irradiated with light, and the image could not be recorded or transferred for storage.

The present invention eliminates the above drawbacks, and the following (2) Each embodiment will be described with reference to the drawings.

FIG. 1 shows a sectional view of a first embodiment of an electronic projector according to the present invention. In the figure, reference numeral 1 denotes a main body case, on the upper surface of which a subject holder 2 made of, for example, glass is attached. An electronic image pickup plate 4 made of a frame or the like, and a signal processing section 5 that converts a signal from the image pickup plate 4 into a television signal are provided.

60, 6□ is an illuminator for reflected light such as a fluorescent lamp, 7! ,
Reference numeral 72 denotes reflecting plates, which are provided at both ends of the inner surface of the case 1, respectively. 8 is an illuminator for transmitted light such as a light bulb,
It is identified by a support 9 above the stand 2.

10 is a television receiver such as a CRT, and 11 is a V
TR, 12 is a copying machine (hard copy), which is centrally connected to the signal processing section 5.

For example, when projecting a transparent object such as a transparent film, the object is placed on the stand 2 and the illuminator 8 is turned on.

The light from the illuminator 8 is coupled to the object on the mount 2, (3) to the image pickup plate 4 via the lens unit 3, and the image pickup plate 4 generates an electrical signal corresponding to the information drawn on the background imager. and is supplied to the signal processing section 5.

The signal processing unit 5 converts it into a television signal of the NT80 system, for example, and sends it to the receiver IQ, VTR 1, 1, and photo camera 1.
2 and the content of the subject is imaged on the receiver 10, while the content is magnetically recorded on the magnetic tape of the VTRII, and is also copied onto the copy paper of the copying machine 12. The frame creator selects one of them as necessary, and records the contents of the subject using a VTR 11 or a copying machine 12 when preservation is particularly required.

On the other hand, when projecting a non-translucent object such as a book, place the object on the stand 2 with the projection surface facing downward, and use the illuminators 6□, 6
Light up □. The light from the illuminators 6□, 6° is reflected by the subject and coupled to the image pickup plate 4, and is converted into a television signal by the signal processing unit 5 as in the above case. Hereinafter, while the image is displayed on the receiver 10 in the same way as in the above case, the vTR
ll, recorded on the copying machine 12.

(4) In this case, since a zoom type lens unit 3 is used, no matter what size the book is, the image from this can be enlarged or reduced and combined with the image pickup plate 4, making it possible to visually observe it. An image of a convenient size can be obtained.

Note that since the information on the object to be imaged has an inverse left-right relationship when using transmitted light and when using reflected light, the signal processing unit 5 is provided with a circuit that converts this into information about a fixed orientation. .

FIG. 2 shows a sectional view of the main parts of a second embodiment of the projector of the present invention. In the figure, reference numeral 13 denotes a lighting device, which can be stored inside the main case 14 as shown by the broken line when not in use, and can be pulled out above the case 14 and fixed at the position shown by the solid line when in use. ing. The illumination device 13 is provided with a transmitted light illuminator 15a, a reflective plate 16a, a reflected light irradiator 15b, and a reflective plate 16b at the bottom. The mounting stand 17 is provided on the upper surface of the case 14, and a portion 17a through which the lighting device 13 passes is cut out.

Note that this device is not provided with illuminators 8 and (5) and supports 9 as shown in FIG. Further, inside the case 14, a lens section 3, an image pickup plate 4, and a signal processing section 5 as shown in FIG. 1 are provided.

In this case, when using transmitted light, the illuminator 15a is turned on, while when using reflected light, the illuminator 15b is used. Since the other parts are the same as those in FIG. 1, their explanation will be omitted. Note that this device is compact because the lighting device 13 can be stored inside the case 14 when not in use.

FIG. 3 shows a sectional view of essential parts of a third embodiment of the projector of the present invention, and the same components as in the first figure are given the same numbers.

In the figure, reference numeral 18 denotes a mirror, which is fixed below the lens section 3 inside the main body case 19, and the image pickup plate 4 is connected to the mirror 18.
The light passing through the 0 lens section 3 attached laterally above is reflected by the mirror 18, travels laterally, and is supplied to the image pickup plate 4. Since the other parts are the same as those in FIG. 1, their explanation will be omitted.

Since this device uses the mirror 18 to make the optical path horizontal, the space inside the case 19 can be used effectively (6) and can be made compact. Of course, the illuminator 8 shown in the first diagram may be used as the illuminator for transmitted light, or the illumination device 13 shown in the second diagram may be used.

Note that an image pickup tube may be used instead of the image pickup plate 4, and the lens section 3 may be of a fixed type instead of a zoom type. In this case, even with a fixed lens unit, the size of the subject may vary.
It is desirable to be configured so that several lenses can be selectively used so that the magnification can be selected accordingly.

It may also include five signal processing units, a circuit for inverting black and white of an image, and a contour correction circuit. If it has a black-and-white inversion circuit, when the negative film of a general Bensen camera is placed on the stand, it will be possible to project the black-and-white relationship correctly.

Further, the video signal from the signal processing section 5 may be in color as well as black and white, and the signal processing section 5 may be provided with NTSO system, PA,
A switching circuit may be provided that can selectively select one of the T, T, and SEOAM methods.

In addition, the signal processing section 5 may be provided with a circuit for extracting a signal for recording information on a video disk (7). an imaging means that converts the light into a signal and takes it out; a first C'1 light projection means that irradiates the object with light and projects the transmitted light onto the imaging means; Since a second light projection means for projecting the reflected light onto the imaging means is provided, the electrical signal can be supplied to, for example, a VTR or a copying machine to record and store information about the subject. It is easier to use, has a wider range of use, and is more user-friendly than conventional optical projectors, which allow you to view the subject only when the light is shining on it, and can only record and save it. You can tell your divination by looking at objects in different places at the same time on a television receiver, etc.
The light source of the light projecting means and the light source of the second light projecting means can be stored in the main case when not in use by displacing the side surfaces inside the main case in a direction passing through the front and back surfaces of the subject. Because it is configured to be fixed at the upper and lower ends of the longitudinal (8)-shaped illumination device, it is possible to prevent translucent objects such as slide films, negative films, and microfilms, as well as non-transparent objects such as books and printed matter. Therefore, only translucent objects can be projected, and it is easier to use than the conventional Koko type projector lid.Fourth, the illumination device σ Since it is constructed so that it can be stored in the main body case, it has a vertical length that allows it to be made compact.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a first embodiment of the 'Ashi type projector according to the present invention, and FIGS. 2 and 3 are sectional views of main parts of the second and third embodiments of the projector of the present invention, respectively. be. 1.14... Main body case, 2,17.0 Subject mounting stand, 3... Lens unit, 4...-Image board, 5... Signal processing unit, 61t 62 + 8, 15a, 15b
・AM illuminator, 9...support, i o---receiver, l
l---V'l'R. 12... Vibrant camera, 13... Lighting device. (9) Figure 1

Claims (3)

[Claims] (1) An imaging means that converts light transmitted through or reflected from an object into an electrical signal corresponding to the object and extracts it; a first light projection means for projecting the light passed through the image pickup means onto the imaging means; and a second light projection means for irradiating the object with light and projecting the light reflected from the object onto the image pickup means. An electronic projector comprising: (2) The electronic projector according to claim 1, wherein the electric signal is a television signal. (3) When the light source of the first light projecting means and the light source of the second light projecting means are not in use, the side surfaces inside the main body case are displaced in a direction that passes through the front and back surfaces of the subject. The electronic projector according to claim 1, wherein the electronic projector is fixed to the upper and lower ends of a longitudinal illumination device that can be housed in the main body case.