JPS63183432A - Variable display image type magnifying projector - Google Patents

Abstract

PURPOSE:To switch a display image to moving picture display or automatic display to display the image by attachably/detachably setting up a display image carrier to/from a magnifying projector and varying the operating time of a power supply for a light source. CONSTITUTION:In the magnifying projector 1, a loading part 5 is arranged in the vicinity of a front end aperture part 3 of a casing 2 to load the attachable/detachable display image carrier 4 such as a slide film. Light from the light source 6 is converted into parallel light beam by a reflecting mirror 7 with a parabolic face and a display image formed on the carrier 4 from the parallel light beam is magnified by a projection lens 8. The lens 8 can be optionally adjusted in an angle direction shown by an arrow A or B by means of a supporting rod 9 and the operating time of a power supply circuit in the light source 6 can be also optionally controlled. Such kind of a projector can be formed as a compact and inexpensive constitution and moving picture display or automatic display can be easily switched by using plural magnifying projectors.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an enlargement projection device for optically enlarging and projecting photographs, drawings, etc. The present invention relates to a variable display image enlargement projection device suitable for changing display.

[Conventional technology and problems]

Currently, many electric signboards with fluorescent lights inside are installed in buildings of all sizes, mainly for advertising purposes, and in coffee shops and other stores, panels are installed to decorate the interior of the store or for advertisements. An electric light panel is installed that illuminates photos and drawings of landscapes, people, illustrations, etc. with internal fluorescent lights.

However, these electric signboards and electric panels are bulky, require space to install, and require a sturdy structure, requiring a great deal of effort and expense for installation and maintenance. There was a problem. Another problem was that the displayed content was fixed, and to change it, the electronic signboard or the electronic panel itself had to be replaced.

This invention was made in view of the above circumstances, and its purpose is to make it possible to easily change displays for advertising and interior decoration, which were conventionally made using electric panels and electric signboards, and to provide animation and flexibility. can be obtained by giving sex,
An object of the present invention is to provide a simple, compact, and inexpensive display image variable enlargement projection device.

Means for Solving Problem C] The variable display image enlargement projection device of the present invention, which has been made to solve the above problems, includes a carrier mounting portion to which a display image carrier can be detachably mounted, a light source, and at least one projector unit having an optical system for enlarging and projecting a display image on the display image carrier with light from the light source;
The present invention is characterized by comprising power supply control means for variably controlling the operation of the power supply circuit of the light source of each projector unit.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the variable display image enlargement projection apparatus of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of a projector unit (whole reference numeral 1) used in the variable display image enlargement projection device of the present invention. A carrier attachment part 5, on which a display image carrier 4 such as a slide film can be detachably attached, is provided near the casing 2, and a light source 6, such as a krypton lamp, is fixed inside the casing 2. It has an optical system consisting of a parabolic reflecting mirror 7 that produces parallel light rays and a projection lens 8 that enlarges and projects the light source of the display image formed by the parallel light rays on the display image carrier 4.
is supported on the free end side of a support rod 9 attached to the casing 2, and is freely adjustable in the front-rear direction indicated by arrow A and in the angular direction indicated by arrow B. Further, the light source 6 is driven by a power supply circuit or a drive circuit that can be connected to an external power source such as a commercial power source. Note that the casing 2 can be separated near the front edge of the reflecting mirror 7 for purposes such as replacing the light source 6.

The projector unit 1 is not limited to the structure shown, and the projection lens 8 may be attached to the front end of the casing by a telescopic type like a normal telescope or a screw type like a telephoto lens of a camera. good.

Furthermore, the enlarged projection device of the present invention has a projector unit 1
The light source 6 is provided with a power supply control means 12 for variably controlling the operation time of the power supply circuit of the light source 6.

For example, as shown in FIG. 4, the power supply control means 12 controls four projector unit lamps (light sources) 63, 62, 6, connected in parallel to an external power source such as a commercial power source. ．． 6.
Lamp power supply circuit 1o1.1o2.10, l, 10. It can be configured with a selector circuit 11 that supplies operation commands at set time intervals to switching means such as solid state relays and non-contact switches. Of course, the time interval of the operation command signal can be set arbitrarily, and it is also possible to blink or continuously drive some or all of the lamps at the same time.

FIG. 5 shows another embodiment of the power supply control means 12,
This power supply control means 12 controls the lamps 6, . 6. ．． 63.6. Lamp drive circuit 120.12□, 12 consisting of a power supply circuit and a timer circuit such as a flip-flop that turns on the power supply circuit for a set time.
3.12. and setting knob 1 for the on time of each timer circuit.
A setting device 13 for variable setting according to 4. ．． 13□, 133.
Consists of 134. In this power supply control means 12, 1
2, -12. →12. -124→12. As in,
Each lamp drive circuit detects that the lamp drive circuit in the previous stage has changed from on to off, and its timer circuit turns on for the time set by each setting device, and the lamp 6I
, 62, 63, and 64 are sequentially cyclically driven accordingly. In addition, in FIG. 1, reference numeral 15. ．． 152 is a trigger input terminal and an output terminal of the lamp drive circuit of the power supply control means 12 in FIG.

Now, there are four projector units 1□, 12, ? controlled by the power supply control means 12 as shown in FIG. 4 or 5. ,
, 1. For example, in the carrier mounting portion 5 of each projector unit of the variable display image enlargement projection device,
As shown in c and d, slide films on which pictures or photographs of horses with slightly different leg positions, etc. If the images are projected at approximately the same location on the wall, a moving image of the horse will be displayed. In addition, if slide films such as landscape photographs of different places, photographs of different people, illustrations, etc. are attached to each projector unit, and the slide films are sequentially cycled at relatively long intervals, such as one minute or more,
These different display images are sequentially enlarged and projected.

Furthermore, in the embodiment using the power control means as shown in FIG. 4, each of the four projector units has a
If slide films with characters such as ``Otsu'', ``Hei'', and ``Ding'' recorded on them are mounted and projected from inside or outside the signboard at different positions on the signboard by continuous drive or simultaneous flashing drive, the characters ``Koitsu, Hei'', and ``Ding'' can be projected from inside or outside the signboard. You can get a continuous display or a flashing display signboard with the words "". When the projector unit 1 equipped with slide films of these character images is sequentially driven in circulation using the power supply control means shown in FIG. 4 or FIG. , may be adjusted to different positions.

Furthermore, by shifting the focal points of the plurality of projector units from each other, the display image can be enlarged and projected onto different positions on the uneven projection surface.

Note that the number of projector units in the variable display image enlargement projection device of the present invention is not limited to four as shown in the illustrated embodiment, but may be any plurality as required, and of course only one. But that's fine.

〔Effect of the invention〕

According to the variable display image enlargement projection device of the present invention, it is possible to easily and inexpensively obtain an electric display for interior decoration, advertising, etc., and it requires less cost and installation space than conventional electric signboards and electric panels. can save significantly.

[Brief explanation of the drawing]

FIG. 1 is a partial sectional view and a top view showing an internal exploded view of an embodiment of the projector unit 7) of the variable display image enlargement projection device according to the present invention, and FIG. 2 (al, fbl, (cl, ( dl
FIG. 3 is an explanatory diagram showing an example of a display image, and FIG.
FIG. 4 and FIG. 5 are block diagrams each showing an example of a power supply control means. DESCRIPTION OF SYMBOLS 1...Projector unit, 4...Display image carrier, 5...Carrier attachment part, 6...
...Light source, 7...Reflector, 8...Projection lens, 108.102.101.104...
Lamp power supply circuit, 11...Selector circuit-7= path, 12. ．． 12□, 12. I, 124... Lamp drive circuit, 13. ．． 132.133.134...
...Setting device. Patent applicant Kei Shishino Tsugudo Agent Kama 1) Bun 2

Claims (1)

[Scope of Claims] At least one projector having a carrier device portion to which a display image carrier can be detachably attached, a light source, and an optical system for enlarging and projecting a display image on the display image carrier using light from the light source. What is claimed is: 1. A variable display image enlargement projection apparatus, comprising: a power supply control means for variably controlling the operation of a power supply circuit of a light source of each projector unit;