Discriminating light-emitting optical apparatus
First Claim
Patent Images
1. A discriminating light-emitting apparatus comprising:
- transmitting means for optionally setting a coded optical signal, said transmitting means having a drive switch; and
receiving means having a light receiving element responsive only to the optionally coded optical signal issued from said transmitting means and a light emitting section for displaying an indication of receipt of the coded optical signal;
wherein said transmitting means issues the optical signal upon turning-on of the drive switch, said receiving means turns on when said light receiving element receives the optical signal, and said indication of receipt of the optical signal by said light emitting section is displayed by turning on said at least one light emitting section for at least a predetermined time period.
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Abstract
A discriminating light-emitting apparatus comprises a transmitting unit capable of optionally setting a coded optical signal or a signal having a specific wavelength, and a receiving unit responsive only to the optionally coded optical signal or the signal having the specific wavelength issued from the transmitting unit, to execute display. Display on the receiving unit is executed in such a manner that one or a plurality of light emitting section or sections is or are turned on and off.
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Citations
21 Claims
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1. A discriminating light-emitting apparatus comprising:
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transmitting means for optionally setting a coded optical signal, said transmitting means having a drive switch; and receiving means having a light receiving element responsive only to the optionally coded optical signal issued from said transmitting means and a light emitting section for displaying an indication of receipt of the coded optical signal; wherein said transmitting means issues the optical signal upon turning-on of the drive switch, said receiving means turns on when said light receiving element receives the optical signal, and said indication of receipt of the optical signal by said light emitting section is displayed by turning on said at least one light emitting section for at least a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. A discriminating light-emitting apparatus comprising:
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transmitting means for optionally setting optical signals having a specific wavelength, said transmitting means having a drive switch; and receiving means responsive only to an optical signal having the specific wavelength, issued from said transmitting means, to perform a display, said receiving means having at least one light emitting section; wherein said transmitting means issues the optical signal upon turning-on of the drive switch, said receiving means turns on when said light receiving element receives the optical signal, and said display indicating receipt of the optical signal by said light emitting section is performed by turning on said at least one light emitting section for at least a predetermined time period.
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17. A discriminating light-emitting apparatus including receiving means for receiving an optical signal and transmitting means for transmitting an optical signal, said receiving means comprising:
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a cylindrical casing having a power source for emitting a visible light-emitting diode built in a central portion thereof; a plurality of light receiving elements arranged at an inside of said casing such that said light receiving elements are in concentrical relation to said casing and face outwardly; a conical mirror-surface reflecting plate for guiding light from outside to said light receiving elements and a convex lens for enhancing light-receiving sensitivity, arranged respectively in front of said light receiving elements; and a generally hemispherical lid having a lens effect covering a circumference of a plurality of visible light-emitting diodes arranged on an upper portion of said casing; said transmitting means comprising; a case within which are received a power source for emitting an infrared light-emitting diode and a drive circuit; a manual-operating drive switch disposed on an upper surface of said case; a convex lens projecting from a side surface of said case and movable along an optical-axis direction for regulating a light emitting angle; and an infrared light-emitting diode for issuing an optical signal through said convex lens; and wherein the optical signal issues by turning on said drive switch of said transmitting means, said light receiving element reacts and turns on in response to the optical signal thereby supplying electric current to said visible light-emitting diodes to radiate the diodes. - View Dependent Claims (18, 19, 20, 21)
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Specification