초록 ▼

A surveying type target has a precisely located aperture that achieves tolerances, within +/−0.0005 inch, in the assembly and usage of a retro-reflective photogrammetry target for use with close range industrial photogrammetry. The dot the target may also be refurbished and reconditioned in t

A surveying type target has a precisely located aperture that achieves tolerances, within +/−0.0005 inch, in the assembly and usage of a retro-reflective photogrammetry target for use with close range industrial photogrammetry. The dot the target may also be refurbished and reconditioned in the field under all weather conditions. This target has a precisely machined ring that fits into a precisely machined socket of a body to eliminate assembly irregularities. This target precisely locates the ring upon the body forming a finished target with a known centerline and height location within +/−0.0005 inch tolerance.

대표청구항 ▼

I claim: 1. A device for reflecting light, such as strobe from a camera for photogrammetry, comprising: a target having a shank, a body generally centered up on said shank, a ring precisely located upon said body and retro-reflective tape; said ring having an aperture, said aperture locating upon s

I claim: 1. A device for reflecting light, such as strobe from a camera for photogrammetry, comprising: a target having a shank, a body generally centered up on said shank, a ring precisely located upon said body and retro-reflective tape; said ring having an aperture, said aperture locating upon said retro-reflective tape placed upon said body and positioning within +/−0.0005 inch of the centerline of said target and within +/−0.0005 inch of the height of said target; said body having a shoulder extending perpendicular to said body forming said body into a generally L shape, said shoulder being centered upon said shank; said body having a surface coplanar with the centerline of said target and generally perpendicular to said shoulder, and extending away from said shoulder and said shank; said body having a precisely located socket extending into said surface, said socket having an outer diameter, a depth, and; an inner diameter; and a plate formed coplanar with said surface and within said socket, said plate receiving said retro-reflective tape. 2. The reflective device of claim 1 further comprising: said ring having a generally round shape, a bottom, an outer diameter, and said aperture being centered and slightly above said bottom; an annulus extending away from said bottom, having an outer rim of lesser diameter than said outer diameter and said outer rim providing a snug fit of said annulus into said socket, an inside rim of greater diameter than said plate and said aperture. 3. The reflective device of claim 2 further comprising: said ring having a bevel extending outwardly from said aperture and away from said bottom. 4. The reflective device of claim 2 further comprising: said being offset from said bottom to accommodate the thickness of said retro-reflective tape. 5. The reflective device of claim 4 wherein said aperture is offset 0.005 inch, with a tolerance of +/−0.0005 inch. 6. The reflective device of claim 2 further comprising: said annulus having a shape in cross section cooperating with the shape of said socket in cross section. 7. The reflective device of claim 6 wherein said annulus has a generally round shape and said socket has a round shape. 8. The reflective device of claim 2 further comprising: bonding placed within said socket generally below said surface and engaging said annulus. 9. A device for reflecting light from a camera strobe, including retro-reflective tape upon said device, further comprising: a target supporting said retro-reflective tape, said target providing its location to within tolerances of +/−0.0005 inch of its centerline and +/−0.0005 of its height; and said retro-reflective tape being removable and replaceable while said target maintains its location within said tolerances said target having a shank, a body generally centered upon said shank, and a ring precisely located upon said body; said ring having a generally round shape, a bottom, an outer diameter, and an aperture being centered and slightly above said bottom, said aperture locating over said retro-reflective tape, and being offset from said bottom to accommodate the thickness of said retro-reflective tape; said body having a surface coplanar with the centerline of said target and extending away from said shank; said body having a precisely located socket into said surface, said socket having an outer diameter, a depth, and an inner diameter; a plate formed coplanar with said surface and within said socket, said plate receiving said retro-reflective tape; and, an annulus extending away from said bottom, having an outer rim of lesser diameter than said outer diameter and said outer rim provides a slip fit of said annulus into said socket, and an inside rim of greater diameter than said plate and said aperture. 10. The reflective device of claim 9 wherein said aperature is offset 0.005 inch +/−0.0005 inch above said bottom and said aperature is within +/−0.0005 inch of the centerline and the height of said target.