Adjustable focus illuminating lamp based on the adjustment of the curvature of the spotting bowl

Abstract

The invention discloses a focus-adjustable illuminating lamp based on the curvature adjustment of a concentrating bowl. The upper and lower lamp tubes of the illuminating lamp are threadedly connected, the side wall of the upper lamp tube is provided with a long side hole, and the lead screw is arranged on the bottom surface of the lamp stand. In the center, the inner wall of the upper lamp tube is spaced with a chute, the circumferential surface of the lamp table is provided with protrusions at intervals, the lamp table is arranged in the inner cavity of the upper lamp tube and the protrusion is located in the chute, the focusing disc is screwed on the lead screw and located in the side hole of the long strip Position, the lamp bead is set at the center of the top surface of the lampstand, the bottom end of the elastically deformable concentrating bowl is connected to the top surface of the lampstand and the lamp bead is located in the center, the top surface of the elastically deformable concentrating bowl is provided with a flange, and the lampshade is connected to the top of the lamp tube by threads and the flange is fixed between the lampshade and the top surface of the upper lamp canister, the back cover and the bottom surface of the lower lamp canister are connected by threads, and the lithium battery is arranged in the inner cavity of the lower lamp canister and is connected to the lamp beads through a power switch. The illuminating lamp realizes that the curvature of the concentrating bowl can be adjusted, can continuously control and improve the range of light divergence and convergence, and realize the multiple utilization of the illuminating lamp.

Description

technical field [0001] The invention relates to the field of illumination technology, in particular to an adjustable focus illuminating lamp based on adjustment of the curvature of a concentrating bowl. Background technique [0002] With the progress of mankind and the development of science and technology, lighting has changed from the most primitive fire, oil, and finally to electricity. People are not only satisfied with its single lighting function while pursuing light. Nowadays, the use of lamps is gradually being developed and utilized, and lamps of various brands and functions have been widely used in various industries. [0003] Ordinary adjustable focus lights have a single focusing bowl to reflect light to make it converge, and a fixed focusing bowl can only reflect light to a certain range, and its ability to adjust the degree of light convergence is limited. Lighting equipment with strong light focus adjustment capabilities, such as strong light flashlights, mu...

AI Technical Summary

Problems solved by technology

Therefore, for traditional adjustable focus lighting, the focusing bowl for adjusting light convergence can only be single and fixed, and the position of the light source on the convex lens distance of the optical axis can be adjusted. Divergent, and the grinding, production, precision and cost requirements of the convex lens are high; the convex lens with large curvature is thicker, which brings a burden to the light to carry, and has a single performance in other additional practical functions

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