Light emitting diode intensity tester
First Claim
1. In a system for measuring pulses of electromagnetic radiation wherein detected radiation is indicated on a meter and is indicative of the strength of the detected radiation, the improvement of a radiation containment assembly comprising;
- a radiation containment housing containing a chamber open at first and second ends, first and second plugs for closing respective ends of said chamber, optical detector means supported by said first plug within the chamber, electrical wires coupled to said detector and passing through the first plug for coupling a signal output from said housing in response to optical stimulation of said detector means, said second plug having electrical wires passing therethrough for coupling an electrical signal input to said plug, said second plug being disposed for receiving and positioning an electromagnetic radiation emitter within said chamber, said first and second plugs provide for physical contact between said photocell and said radiation emitter within said chamber, a spring disposed on said second plug for holding said detector, whereby said optical detector is spring loaded within said chamber for allowing variable positioning of said detector within the chamber.
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Abstract
A device that tests the output intensity of light emitting diodes. The light emitting diode to be tested is placed in a light tight tube in which is placed a photocell. The photocell is placed so as to be in contact with the diode. When power is applied to the diode by means of a direct current source, the diode emits light which strikes the photocell. This output light changes the output resistance of the photocell and is measured by a testing circuit to see if the signal strength falls in an acceptable range.
24 Citations
3 Claims
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1. In a system for measuring pulses of electromagnetic radiation wherein detected radiation is indicated on a meter and is indicative of the strength of the detected radiation, the improvement of a radiation containment assembly comprising;
- a radiation containment housing containing a chamber open at first and second ends, first and second plugs for closing respective ends of said chamber, optical detector means supported by said first plug within the chamber, electrical wires coupled to said detector and passing through the first plug for coupling a signal output from said housing in response to optical stimulation of said detector means, said second plug having electrical wires passing therethrough for coupling an electrical signal input to said plug, said second plug being disposed for receiving and positioning an electromagnetic radiation emitter within said chamber, said first and second plugs provide for physical contact between said photocell and said radiation emitter within said chamber, a spring disposed on said second plug for holding said detector, whereby said optical detector is spring loaded within said chamber for allowing variable positioning of said detector within the chamber.
- View Dependent Claims (2, 3)
Specification
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- Resources
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Current AssigneeJames E. Batt
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Original AssigneeJames E. Batt
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InventorsBatt, James E.
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Primary Examiner(s)Nelms, David C.
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Application NumberUS06/582,209Time in Patent Office931 DaysField of Search356/236, 356/230, 356/231, 356/218, 356/220-228, 324/158 D, 324/158 F, 250/239, 250/551, 250/228, 250/215US Class Current250/239CPC Class CodesG01R 31/2635 Testing light-emitting diod...
