US 11,988,374 B1
Optical arrangement for collimated light beam
Mehmet Arik, Istanbul (TR); Mohammad Azarifar, Istanbul (TR); and Ceren Cengiz, Istanbul (TR)
Assigned to OZYEGIN UNIVERSITESI, Istanbul (TR)
Appl. No. 18/283,496
Filed by OZYEGIN UNIVERSITESI, Istanbul (TR)
PCT Filed Aug. 5, 2021, PCT No. PCT/TR2021/050775
§ 371(c)(1), (2) Date Sep. 22, 2023,
PCT Pub. No. WO2023/014308, PCT Pub. Date Feb. 9, 2023.
Int. Cl. F21V 5/04 (2006.01); F21V 7/00 (2006.01); G02B 19/00 (2006.01); G02B 27/30 (2006.01)
CPC F21V 5/04 (2013.01) [F21V 7/0091 (2013.01); G02B 19/0028 (2013.01); G02B 27/30 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lamp for producing a collimated light beam, comprising:
at least one light source disposed on a casing,
a retaining plated having at least one opening for accommodating an optical assembly,
the optical assembly comprising an upper portion having a convex shaped lens, and
a bottom portion having an upper wall configured as a concave shaped lens and having an aperture, wherein the aperture is located on a top of the light source;
wherein the optical assembly further comprises an inverted dome shaped shell defined by lateral walls and a refractive wall and comprises a domed portion having the convex shaped lens extending outwardly from the lamp, and
a curvature radius ratio (r1/r2) between a curvature radius (r1) of the convex shaped lens and a curvature radius (r2) of the concave shaped lens is a value in a range of 1.7 to 1.9.