Line projecting device
作者： Victor Pelletier
DOI:
关键词: Collimated light 、 Line (text file) 、 Cylinder 、 Projector 、 Beam (nautical) 、 Plane (geometry) 、 Horizontal position representation 、 Engineering 、 Optics 、 Light beam
摘要: The present invention concerns a line projecting device that can project spanning 360 degrees onto working surface. preferably comprises two projectors back to and leveling device. is used indicate the horizontal position of projectors, both being in same plane. Each projector consists source light direct collimated beam on transparent annular cylinder. A plurality partial reflections refractions inside cylinder create spans over surfaces sight projector.
lens.org 参考文章(12)
Philip R. Palin, Bruce N. Watts, Laser fill-level indicator for blank syringes ,(1986)
Herbert P. Radding, Roger D. Ludlow, Robert C. Tager, Hand-held builder's square and string line device incorporating a laser ,(1995)
Jr. Steven J. Orosz, Light beam leveling means and method ,(1996)
Paul Akers, Laser leveling system, apparatus and method for building construction ,(1999)
Chih-Hsiung Lin, Chyi-Yiing Wu, Three-dimensional laser levelling and angle-calibrating instrument with multiple functions ,(1997)
See L. Chin, Kenneth A. Mace, Optical fan levelling system ,(1975)
Kindl H, Device for producing a light plane ,(1972)
Martin Luther Slagle, Howard M Denton, Optical plumb leveler ,(1973)
Dale E. Laird, Reflective laser line generator ,(1977)
Joseph F. Rando, Construction laser accessory for generating aligned spots ,(1996)