Lamp and lens thereof
A lens and lamp technology, applied in the field of lighting, can solve problems such as light energy loss
Inactive Publication Date: 2014-12-03
OCEANKING DONGGUAN LIGHTING TECH +2
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Problems solved by technology
In the secondary optical design for the application of light-emitting diodes, due to the light-emitting angle of the light-emitting diodes, most of the light from the light-emitting diodes is directly irradiated without passing through the reflector, and fails to irradiate the range required by the user. cause loss of light energy
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0021] see figure 1 , a preferred embodiment of the present invention provides a lamp 100 . The lamp 100 includes a light source 10 and a lens 20 . The lens 20 is used to distribute the light emitted by the light source 10 so as to output a narrow beam.
[0022] read on figure 2 and image 3 The lens 20 includes a light exit surface 21 , a light entrance surface 22 and an outer curved surface 23 connected between the light exit surface 21 and the light entrance surface 22 . The area of the light incident surface 22 is smaller than the area of the light output surface 21 . The light incident surface 22 is recessed inward to form a groove 24 . The bottom of the groove 24 is a spherical surface 242 protruding toward the light incident surface 22 . The inner wall 244 o...
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The invention provides a lens, comprising a light emergent surface, a light incident surface, and an outer curve surface connected between the light emergent surface and the light incident surface, wherein a groove is formed in the light incident surface; the bottom of the groove is a spherical surface which protrudes to the direction of the light incident surface; the inner wall of the groove is vertical to the light emergent surface; when a light source emits light, a first beam of the light emitted by the light source is refracted onto the light emergent surface through the spherical surface of the groove, and is refracted out through the light emergent surface, so that a first narrow beam is formed; a second beam of the light emitted by the light source is refracted onto the outer curve surface through the inner wall of the groove, is totally reflected through the outer curve surface, and is refracted out through the light emergent surface, so that a second narrow beam is formed, wherein a divergence angle, relative to a center axis of the light source, of the first beam is not greater than 16 degrees; the divergence angle, relative to the center axis of the light source, of the second beam is not greater than 16 degrees; the divergence angles, relative to the center axis of the light source, of the first narrow beam is not greater than 12 degrees; the divergence angle, relative to the center axis of the light source, of the second narrow beam is not greater than 12 degrees. According to the lens and the lamp provided by the invention, the light emitted by the light source totally irradiates in a preset range, thereby preventing luminous energy damage. The invention further provides a lamp.
Description
technical field [0001] The invention relates to the lighting field, in particular to a lamp and a lens thereof. Background technique [0002] At present, with the maturity of light-emitting diode chips and packaging technology, the brightness requirements of light-emitting diodes are sufficient to meet the needs of various lighting fields. Therefore, light emitting diodes are widely used in various fields. In specific application fields, in order to comply with industry or national standards in this field, secondary optical design for light-emitting diode applications is required. In the secondary optical design for the application of light-emitting diodes, due to the light-emitting angle of the light-emitting diodes, most of the light from the light-emitting diodes is directly irradiated without passing through the reflector, and fails to irradiate the range required by the user. resulting in loss of light energy. Contents of the invention [0003] The object of the pr...
Claims
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IPC IPC(8): F21S2/00F21V5/04F21Y101/02
Inventor 周明杰乃业利
Owner OCEANKING DONGGUAN LIGHTING TECH