LASER RANGE FINDER Russian patent published in 2014 - IPC G01C3/08 G01S17/08 G02B3/06 

FIELD: measurement equipment.

SUBSTANCE: invention relates to laser equipment, to equipment of laser range finding. The laser range finder comprises a receiving device and a transmitting device, including a lens of a radiator and a laser radiator, the equivalent glow body of which with dimensions A×B is located in the focal plane of the radiator lens. The radiator lens comprises the first cylindrical component with the focus distance f₁≥B/β, the generatrix of the cylinder of which is perpendicular to the minimum dimension B of the glow body, and the second cylindrical component with the focus distance f₂, the generatrix of the cylinder of which is perpendicular to the maximum dimension A of the glow body. Distances from cylindrical components to the equivalent glow body are equal to l₁ for the first cylindrical component and l₂ for the second one. The first cylindrical component has the second cylindrical profile, perpendicular to its first cylindrical profile and providing for focus distance $$f_1^{*},$$ besides, the distance l₁=f₁-Δf, distance l₂≤L, focus distances $$f_2\le \frac{f_2^{\text{'}}{l}_3}{f_2^{\text{'}}-l_1}$$ and $$f_1^{*}\le -\frac{f_2^{\text{'}}(f_2-l_3)}{f_2^{\text{'}}-f_2},$$ where $$f_2^{\text{'}}\ge A/\alpha ,$$ l₃=(l₂-l₁), L - maximum permissible dimension of the radiator lens along its longitudinal axis, α and β - angular dimensions of the remote object, corresponding to the maximum A and minimum B dimensions of the equivalent glow body, Δf - distance between the main planes of the first and second cylindrical profiles of the first cylindrical component.

EFFECT: provision of the possibility to reduce dimensions of an optical system of a radiator without reduction of capacity of output radiation and without increase of range finder mass.

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