CA1237707A - Illuminating device - Google Patents

Illuminating device

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Publication number
CA1237707A
CA1237707A CA000509923A CA509923A CA1237707A CA 1237707 A CA1237707 A CA 1237707A CA 000509923 A CA000509923 A CA 000509923A CA 509923 A CA509923 A CA 509923A CA 1237707 A CA1237707 A CA 1237707A
Authority
CA
Canada
Prior art keywords
pattern
pattern means
areas
light
geometric design
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000509923A
Other languages
French (fr)
Inventor
Adam G. Kallay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA000509923A priority Critical patent/CA1237707A/en
Application granted granted Critical
Publication of CA1237707A publication Critical patent/CA1237707A/en
Expired legal-status Critical Current

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  • Farming Of Fish And Shellfish (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

ABSTRACT OF THE DISCLOSURE

The present invention relates to an illuminating device that will create a continuously moving ripple effect on the area illuminated. The device comprises a patterned endless belt transported on a pair of driven rollers. One side of the belt is illuminated preferably by a point light source. As the belt is driven, the patterns on the two sides pass each other in opposite directions. This creates a rippled light effect. The device is particularly well adapted for use with an aquarium to simulate underwater, the effect caused by ambient light shining through surface ripple and waves upon the bottom of a body of water.

Description

I to TITLE: ILLUMINATING DEVICE

INVENTOR: Adam G. Allay 6075 Wilkinson Road Clinton, WA 98236 I
BACKGROUND OF THE INVENTION

The present invention relates to an illuminating device that will create a continuously moving ripple effect on the area illuminated. The device is particularly well adapted for use with an aquarium to simulate underwater and effect caused by ambient light shining through surface ripple and waves.

The present inventor is unaware of any known system within the prior art that will simulate the shimmering effect seen on underwater objects when ambient light passes through the ripple or other wind disturbance normally found on a body of water.
Various devices have been described to achieve changing light patterns for other purposes. One of these is described in US.
I

~LZ3'7~ 7
2 9344-50 patent 2,281,769 to Noel. This is a relatively complex device which comprises an assemblage of different colored lamps which are rotated behind a patterned disk which is also rotated but at a different speed from the lamps. In United States 3,080,474, Allen describes a light source having a stroboscopic component. This is located behind rotating pattern and color disks. The patterned disk rotates at a multiple of the line frequency, while the color disk rotates at a different speed. Smith, in United States
3,308,872, shows an ornamental window shade. This is essentially a roller blind contained in a frame with translucent or transparent screens on either face of the frame. These can be rolled to present different ornamental scenes.

Various inventors have dedicated their efforts to supply lighting systems for aquariums. The following United States patents are representative: Bevy - 3,622,777; Hall - 3,805,740 and 3,913,526;
Ritz et at. - 3,836,765; Hurler - 3,892,199; Avers - 4,078,522;
and ~oehrick - 4,133,024. All of the above described illumination systems are of the type which are placed over or behind an aquarium.
Salk, in United States 3,563,204 shows an illumination system placed under an aquarium.

None of the systems described above are capable of simulating the shimmering effect of light shining through surface water. In add-lion, a number of the systems; e.g., those -taught by Noel 2,281,790, and Allen are relatively complex and expensive -to con-strut. All of -the above deficiencies are overcome by the present illumination system.

~3'7'~)'7 3 934D~_50 SEYMOUR OF THE INVENTION
The present invention provides a device for projecting a con-tenuously moving pattern of light upon an illuminated zone located beyond the bounds of said device, said device comprising:
a. an endless belt-type pattern means, said means having a background portion of relatively lower light transmissivity with the remaining area of said pattern means being comprised of a multiplicity of geometric design areas of relatively high light transmissivity;
b. a drive means for said pattern means, said drive means having (1) roller-type supporting means arranged to hold said pattern means in the form of a continuously movable loop having generally parallel and substantially planar first and second face areas such that, when said pattern means is moved by said drive means, said geometric design areas respectively located on said firs-t and second face areas will move past each other in opposite directions, and (2) motor means to drive said roller-type supporting means; and c. a light source adjacent to and outside of said con-tenuously movable loop of said pattern means which said light source produces light rays that pass successively through said oppositely moving geometric design areas of said first and second face areas respectively, whereby said light rays project a con-tenuously moving pattern of light upon said illuminated zone.

The nature of -the moving pattern or ripple effect can be controlled by the size and shape of -the high light transmitting geometric designs and by the nature of -the background portion of the endless belt. The background itself may be essentially opaque or it may I

ye l I
pa 9344-50 be a colored transparent or translucent material which can provide a lighting effect on which the rippled light is superimposed.

One means of making the geometric patterns is by silk screening the desired configuration on the base material. The composition of the base material is not critical. Polyethylene terephthalate film has been found -to be especially satisfactory because of its durability. Another method of forming the geometric designs is by die-cutting or otherwise completely removing areas from colored or opaque base material.

In one version of the invention the geometric design areas are randomly placed on the pattern. In another version they are focal-Ed in generally parallel rows. The designs can be of many geometric shapes. One which produces a particularly pleasing ripple effect are crescents. These are generally arranged with their points lying on a line which is transverse to the direction of movement of the pattern belt.
B

lo 7~3'~

The nature of the light source is not particularly critical. A
light which approximates a point source, such as a single incandescent bulb is generally preferred.

When used in combination with an aquarium, it is desirable that the illuminating device be contained within an enclosure which is water resistant in order to reduce any possible hazard from electrical shock.

It is an object of the present invention to provide an illumination source which will present a pleasing ripple effect upon the area illuminated.

It is another object to present an illumination source of the type above which can be simply and inexpensively constructed.

These and many other objects will become immediately apparent to those skilled in the art upon reading the following detailed description taken in conjunction with the drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a perspective view, partially cut away, of the illuminating device of the present invention.

Figure 2 is a longitudinal section of the illuminating device shown resting on the top of an aquarium.

Figure 3 is a transverse section taken along line 3-3 of Figure 2.

~3'`7~

DESCRIPTION OF THE PREFERRED EMBODIMENTS

Referring now the to drawings, the illuminating device is generally indicated at 2. It comprises an opaque housing of which can conveniently be made of sheet metal or molded plastic. The device may optionally have a transparent window 6. An endless belt, generally indicated at 8, is positioned around rollers 14 and 16. The belt has an upper face 10 and a lower face 12 which lie in planes essentially parallel to each other. Roller 16 is driven by a small synchronous motor 18 which is coupled to the roller by gear train 22. Rollers 14 and 16 are connected by a light rubber belt 24 so that the patterned belt 8 is not required to serve a driving function. A small lamp 26 is held within housing 28. This lamp is conveniently a clear bulb having, for example, about 6 to 10 watts power consumption for a typical small aquarium.

The lamp 26 and drive motor 18 are both controlled by a switch 32 (figure 2). Patterned belt 8 is shown with a double row of crescentic patterns 34, 36 placed on a darker background 38.
This background may be either opaque or colored as long as it has relatively lower light transmission than the patterns.

In figures 2 and 3 the illuminating devices shown are resting on an aquarium 40 containing water 42.
The speed of the belt is not critical and can be readily adjusted according to the desires of the user. This can be accomplished either by using a variable speed motor or by changing the ratio of gears 20, 22. A belt speed of approximately 5 cm/sec has been found to give excellent results.

Due to the relatively slow speed of patterned belt, tracking is not normally a problem. However, it is useful to place flanged ends 15, 17 on rollers 14, 16 to prevent sideways belt travel.

,,, I, Jo,," 3.7t~

The patterns imprinted on endless belt 8 can be of an almost infinite variety. One which gives a particularly pleasing effect is the use of patterns which are crescentic in nature.
These crescentic patterns are most effective when they are positioned so that the tips of the crescents fall on a line that is approximately transverse to the direction of movement of the patterned belt. In use, the first and second face areas of the belt will be moving past each other in opposite directions. The individual crescentic patterned areas will be varying continually as the effective aperture between them opens and closes.

While the patterned belt may be made of any flexible transparent material, polyethylene perephthalete film has proved to be an excellent choice because of its ready availability and long life. It is convenient to silkscreen the desired pattern on the base material. The ends can be readily adhesively bonded to form the desired loop configuration.

As will be readily apparent to those skilled in the art, the illuminating device will have many uses beyond aquarium lighting. Further, many variations can be made in the construction of the device without departing from toe spirit of the invention It is the inventor's intention that the scope of the invention be limited by the following claims.

Claims (14)

THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A device for projecting a continuously moving pattern of light upon an illuminated zone located beyond the bounds of said device, said device comprising:
a. an endless belt-type pattern means, said means having a background portion of relatively lower light transmissivity with the remaining area of said pattern means being comprised of a multiplicity of geometric design areas of relatively high light transmissivity;
b. a drive means for said pattern means, said drive means having (1) roller-type supporting means arranged to hold said pattern means in the form of a continuously moveable loop having generally parallel and substantially planar first and second face areas such that, when said pattern means is moved by said drive means, said geometric design areas respectively located on said first and second face areas will move past each other in opposite directions, and (2) motor means to drive said roller-type supporting means; and c. a light source adjacent to and outside of said continuously moveable loop of said pattern means which said light source produces light rays that pass successively through said oppositely moving geometric design areas of said first and second face areas respectively, whereby said light rays project a continuously moving pattern of light upon said illuminated zone.
2. The device of Claim 1 wherein said background portion of said pattern means is essentially opaque.
3. The device of Claim 2 wherein said continuously moving pattern of light is a continuously moving ripple effect pattern.
4. The device of Claim 1 wherein said geometric design areas are randomly placed on said pattern means.
5. The device of Claim 1 wherein said geometric design areas are placed in generally parallel rows on said pattern means.
6. The device of Claim 4 in which said geometric design areas are essentially crescentic in form, said crescents being generally arranged with their points on a line transverse to the direction of movement of said pattern means.
7. The device of Claim 5 in which said geometric design areas are essentially crescentic in form, said crescents being generally arranged with their points on a line transverse to the direction of movement of said pattern means.
8. The device of Claim 1 wherein said Logan source is essentially a point source.
9. The device of Claim 1 wherein said device is contained within a water resistant enclosure
10. The device of Claim 9 further in combination with an aquarium.
11. An illuminating device for an aquarium which comprises:
a. a light transmissive pattern means, said pattern means having (1) generally parallel and substantially planar first and second face areas adapted to move past each other in opposite directions, (2) background portions of relatively lower light transmissivity, and (3) remaining areas of said pattern means occupied by a multiplicity of geometric design areas of relatively higher light transmissivity;
b. a drive means for said pattern means to cause said generally parallel first and second face areas to move past each other in opposite directions; and c. a light source above said first face area of said pattern means whereby, when said pattern means is moved by said drive means, light emanating from said light source will (1) pass successively through said oppositely moving geometric design areas of said first and second face areas respectively, and (2) project a continuously moving ripple effect pattern upon an illuminated zone, said illuminated zone being located beneath said illuminating device.
12. The illuminating device of Claim 11 wherein said background portion of said pattern means is essentially opaque.
13. The illuminating device of Claim 12 wherein said geometric design areas are placed in generally parallel rows on said pattern means.
14. The illuminating device of Claim 13 in which said geometric design areas are essentially crescentic in form, said crescents being generally arranged with their points on a line transverse to the direction of movement of said pattern means.
CA000509923A 1986-05-26 1986-05-26 Illuminating device Expired CA1237707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000509923A CA1237707A (en) 1986-05-26 1986-05-26 Illuminating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA000509923A CA1237707A (en) 1986-05-26 1986-05-26 Illuminating device

Publications (1)

Publication Number Publication Date
CA1237707A true CA1237707A (en) 1988-06-07

Family

ID=4133201

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000509923A Expired CA1237707A (en) 1986-05-26 1986-05-26 Illuminating device

Country Status (1)

Country Link
CA (1) CA1237707A (en)

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