Back to results
US 5,205,044 AGranted
Luminous dot sighting instrument
OwnerAlfred C. DePaoliinventor
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
OwnerAlfred C. DePaoliinventor
Estimating the term…
In a luminous dot sighting instrument: dots of different color are produced using different mirror coatings that differentially reflect different wavelengths of light from a single diode or several diodes of the same color, or from different color diodes; dots at different positions on the image of the target view of the instrument are obtained by spacing apart mirror coatings for reflecting light from a single diode, or by by spacing apart several diodes, or a combination of both; dots of different brightness on the image of the target view are obtained by spacing apart mirror coatings for reflecting light from a single diode so that light reflects from the near side and from the far side of the lens and so the far side reflected light is less bright on the image than the near side reflected light; and some embodiments incorporate more than one or all of these features.
A sighting instrument comprising,
In a luminous dot sighting instrument having a housing containing objective lens means and ocular lens means at opposite ends of said housing and defining an optical axis in between, an aperture at said objective lens end of said housing for admitting light from a target view to said objective lens means along said optical axis, a source of light, means along said optical axis for reflecting light from said source while transmitting said target view light, so that said target view and said source are visible at said ocular lends end of said housing along said optical axis with said source image superimposed on said target view image, the improvement comprising,
In a luminous dot sighting instrument having a housing containing objective lens means and ocular lens means at opposite ends of said housing and defining an optical axis in between, an aperture at said objective lens end of said housing for admitting light from a target view to said objective lens means along said optical axis, a source of light, means along said optical axis for reflecting light from said source while transmitting said target view light, so that said target view and said source are visible at said ocular lens end of said housing along said optical axis with said source image superimposed on said target view image, the improvement comprising,
Dependencies are inferred from the claim text.