A SCUBA LASER COMMUNICATION DEVICE AND METHOD
BACKGROUND OF THE INVENTION Field of the Invention
The present invention relates to scuba-diving equipment for aiding in underwater communication. More particularly, the present invention relates to an underwater scuba laser for use by a diver. Related Art Underwater diving, particularly, scuba diving, requires the use of various mechanical aids which enable the diver to explore the lower depths of the sea for extended periods of time. Many times divers are required to work under water and employ the use of various devices such as pneumatic hammers, drill, wrenches etc. Other times, divers are merely exploring the creatures or terrain of the sea. In either case, it is desirable to communicate with companion divers. Presently, divers employ the use of sound emitting devices which ping a companion diver or signaling techniques via hand signaling between divers. These devices and techniques have met with some success. However, these methods of signaling have their limitations and there remains a need to improve the methods and devices by which divers communicate. The present invention aims to improve the device and method by which divers communicate. BRIEF SUMMARY OF THE INVENTION
It is an object to improve underwater diving.
It is another object to improve underwater communication between divers.
It is yet another object to provide a device to aid in underwater communication.
Accordingly, the present invention is directed to a scuba laser communication device and method. The scuba laser communication device includes a laser emitting device for emitting a laser beam, a battery operably connected to the laser emitting device for supplying power thereto and a waterproof housing of a size and configuration to be hand held and having operably disposed therein the laser emitting device and the battery.
The housing has a transparent portion through which the laser beam moves, a watertight switch formed in the housing which is operably interposed and interconnecting the battery and the laser emitting device. The housing is further characterized to be made of a sufficiently buoyant material to cause the scuba laser communication device to float in water.
Another aspect of the invention is directed to a method of communicating under water using a scuba laser communicating device. The method includes the step of employing in an under water environment a waterproof hand held and operated laser beam emitting device, and energizing the laser beam emitting device in a manner to cause the emission of a laser beam across a view path of a diver. The method is further characterized such that the energizing of the laser beam is done in a predetermined sequence code to convey a message in accordance with the code.
Other objects and advantages will be readily apparent to those skilled in the art upon viewing the drawings and reading the detailed description hereafter.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of the present invention. FIG. 2 is a cross-sectional view of the present invention FIG. 3 is representative view of the use of the present invention.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS
Referring now to the drawings, the scuba laser communication device of the present invention is generally designated by the numeral 10. The scuba laser communication device 10 includes a housing 12, laser beam emitting device 14, and battery 16.
The housing 12 is generally cylindrical and is made of a buoyant material to cause the device 10 to float in water. The housing 12 has a relatively hollow chamber 18 therein. The housing 12 also has, by way of example, an open surface 20 through which a switch 22 extends. The housing 12 has another open surface 24 in which a lens 26 is sealingly disposed.
An eyelet member 28 is connected to the housing 12. A strap 30 is connected to the eyelet member 28 to provide a diver means for retaining the device 10 to a wrist, for example. A watertight flexible membrane 32 is disposed about the housing 12 and switch 22 in a manner to seal the switch 22 and open surface 20 from water. In one end of the housing 12 within the chamber 18 is disposed the battery 16 having a positive end contacting an electrical lead 34 and a negative end contacting another electrical lead 36, wherein the electrical lead 36 also contacts the switch 22.
The laser beam emitting device 14 includes, by way of example here, a laser diode 38. The laser diode 38 may be a semiconductor material, such as gallium arsenide, able to amplify light to produce coherent monochromatic light beams, ranging preferably from about 510 to 690 nanometers wavelength. The ranges set forth are by way of example and are not intended to be limiting in the present invention. The laser diode 38 emits a laser beam 40.
By way of example in the present case, the laser diode 38 has a junction between
layers of semiconductors 42 and 44 with different electrical conducting properties. A laser cavity 30 is confined to a junction region by means of two reflective boundaries 46 and 48.
The electrical lead 34 contacts a positive terminal of semiconductor material 42. Another electrical lead 35 connects to a negative terminal of semiconductor material 44 and extends toward the connection between the switch 22 and electrical lead 36. When the switch 22 is depressed, the semiconductors 42 and 44 are used to direct application of electrical current supplied from the battery 16 preferably capable of delivering about 5 milliwatts across the semiconductor junction to cause emission of the laser beam 40. By so providing, the present invention enables a method of communicating under water not previously heretofore known. The method of communication is carried out by employing in an under water environment the scuba laser communications device 10 and energizing the device 10 in a manner to cause the emission of a laser beam across a view path of a diver. The communication may be further carried out by energizing of the laser beam is in a predetermined sequence code to convey a message in accordance with the code, such as Morse Code.
The above described embodiment is set forth by way of example and is not for the purpose of limiting the present invention. It will be readily apparent to those skilled in the art that obvious modifications, derivations and variations can be made to the embodiment without departing from the scope of the invention. Accordingly, the claims appended hereto should be read in their full scope including any such modifications, derivations and variations.
What is claimed is: