Optical instrument for setting the position of a filament of a s

Details Optical instrument for setting the position of a filament of a s Optical instrument for setting the position of a filament of a s

1977-02-22

1979-03-20

Corbin, John K.

Optics: measuring and testing

Focal position of light source

316 23, 356255, 362285, F21V 1902

Patent

active

041451414

ABSTRACT:
An optical instrument for locating the focal point of a smooth surface concave reflector of a signal lamp unit. The optical instrument includes a cylindrical metallic base member for insertion into the electrical socket of a light bulb. A translucent sighting target member is carried by the base member and includes a reticle for focusing in a distant image whereby the filament of a light bulb will be located at the focal point of the concave reflector for maximizing the illuminative efficiency of the signal lamp unit.

REFERENCES:
patent: 2002477 (1935-05-01), Merkel
patent: 2520866 (1950-08-01), Wells
patent: 3418052 (1968-12-01), Hoffman

Affiliated with

Also associated with

Rating

Optical instrument for setting the position of a filament of a s does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical instrument for setting the position of a filament of a s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical instrument for setting the position of a filament of a s will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-218469