Illuminated optical apparatus

A device may include a magnifying lens having a focal length that defines a focal plane, a light source providing visible light directed toward the focal plane, and a controller. The controller may be programmed to receive a signal indicative of the distance from the device to an object, cause the l...

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Bibliographische Detailangaben
Hauptverfasser:	DEVICK STEVEN, FORSYTH DWAYNE D, BLANCO JEFFREY J, TOBEY W. SCOTT
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A device may include a magnifying lens having a focal length that defines a focal plane, a light source providing visible light directed toward the focal plane, and a controller. The controller may be programmed to receive a signal indicative of the distance from the device to an object, cause the light source to emit visible light at a first brightness if the distance is at least substantially equal to the focal length of the lens, and cause the light source to emit visible light at a second brightness, dimmer than the first brightness, if the distance is not at least substantially equal to the focal length of the lens.