Multifunction multi-spectrum signalling device
A multifunction multi-spectrum signalling device comprising at least one source of electromagnetic radiation such as an LED which emits radiation according to predefined or programmable user selectable instruction sets is disclosed. Reversal of the polarity of the device's power supply allows for enhanced features to be accessed including a recording/reprogramming mode and a playback mode.
1. A signalling device for copying a series of visible flashes emitted by an electromagnetic radiation emitting source, the device comprising:
an emission module comprising at least one electromagnetic radiation emitting element, at least one photosensitive element and a memory; and
a switch for selecting between a record mode and a playback mode;
wherein when in said record mode, the series of visible flashes are detected by said at least one photosensitive element and stored in said memory as a control signature and when in said playback mode said at least one electromagnetic radiation emitting element is illuminated to emit visible flashes according to said stored control signature.
2. The device of claim 1 , wherein said emission module further comprises a first terminal and a second terminal, and further comprising a DC power source comprising a positive terminal and a negative terminal, wherein said record mode is selected by interconnecting said first and positive terminals and said second and negative terminals and said playback mode is selected by interconnecting said first and negative terminals and said second and positive terminals.
3. The device as in claim 2 , wherein said DC power source is a battery and wherein said switch comprises manually reversing said battery to change the interconnections between the first, second, positive and negative terminals.
4. The device as in claim 3 , wherein said battery is selected from the group consisting of A, AA, AAA, C, D, 9V, N-Cell and Lithium.
5. The device as in claim 1 , wherein said at least one electromagnetic radiation emitting element emits electromagnetic radiation in the visible spectrum.
6. The device as in claim 1 , wherein said at least one electromagnetic radiation emitting element emits electromagnetic radiation in the infra-red spectrum.
7. The device as in claim 1 , comprising at least two electromagnetic radiation emitting elements and wherein at least one of said electromagnetic radiation emitting elements emits electromagnetic radiation in the visible spectrum and at least one of said electromagnetic radiation emitting elements emits electromagnetic radiation in the infra-red spectrum.
8. The device as in claim 1 , wherein said at least one electromagnetic radiation emitting element is selected from the group consisting of LEDs, lasers, incandescent lights, thermal emitters, xenon strobes and combinations thereof.
9. The device of claim 1 , wherein the electromagnetic radiation emitting source is an infra-red light source and said photosensitive element is sensitive to infra-red light.
10. The device of claim 1 , wherein the electromagnetic radiation emitting source is a laser having a wavelength of about 1550 nm and the photosensitive element is sensitive to light having a wavelength of about 1550 nm.
11. The device of claim 1 , wherein said memory is comprised of a plurality of memory banks and further comprising a second switch for selecting one of said memory banks, and wherein when in said copying mode the series of visible flashes are stored in said selected memory bank as a control signature and when in said operational mode said at least one electromagnetic radiation emitting element is illuminated to emit visible flashes according to said control signature stored in said selected memory bank.
12. The device as in claim 11 , wherein said second switch is a multi-position switch comprising n active positions and wherein each of said first bank and said second bank have n predetermined sets of control signatures, one of each of said n predetermined sets corresponding to one of said n active positions.
13. The device as in claim 12 , wherein said multi-position switch comprises an additional deactivated position and wherein when said multi-position switch is in said deactivated position, said at least electromagnetic radiation emitting element emit no electromagnetic radiation.
14. The device as in claim 13 , wherein said multi-position switch is a bezel mounted rotary switch comprising one (1) deactivated position and at least three (3) active positions.
15. The device as in claim 13 , wherein said rotary switch comprises at least seven (7) active positions.
16. The device of claim 11 , wherein each of said memory banks are pre-programmed with a predetermined control signature.
17. A reprogrammable multi-mode electromagnetic radiation emitting device, comprising:
an emission module comprising at least one electromagnetic radiation emitting source, a first terminal, a second terminal and a polarity responsive controller interposed between said at least one electromagnetic radiation emitting source and said first and second terminals;
a DC power source comprising a positive terminal and a negative terminal;
a polarity switch selectively defining either interconnections between (a) said first and positive terminals and (b) said second and negative terminals, or interconnections between (a) said first and negative terminals and (b) said second and positive terminals; and
a user interface for entering a new control signature;
wherein said polarity responsive controller comprises:
an instruction bank comprising a plurality of control signatures;
a switch for selecting a control signature from said signatures;
a power supply circuit activated by the interconnections between (a) said first and positive terminals and (b) said second and negative terminals, and supplying, when activated, power from said DC power source to said at least one electromagnetic radiation emitting source according to said selected signature, thereby causing said at least one source to emit a series of visible electromagnetic radiation flashes according to said signature; and
a reprogramming circuit activated by the interconnections between (a) said first and negative terminals and (b) said second and positive terminals, and replacing, when activated, said selected control signature with said new control signature.
18. The device of claim 17 , wherein said user interface is a photosensitive element and said new control signature is entered by shining a light source intermittently on said photosensitive element.
19. The device of claim 17 , wherein said user interface is a push button and said new control signature is entered by pushing and releasing said button.