Optical system and illuminating device with same

A technology of optical system and lighting device, applied in the field of lighting

Active Publication Date: 2014-10-01
OCEANKING DONGGUAN LIGHTING TECH +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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[0004] The purpose of the present invention is to provide an optical system and a lighting device using the opti

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  • Optical system and illuminating device with same
  • Optical system and illuminating device with same
  • Optical system and illuminating device with same

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Embodiment Construction

[0022] 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.

[0023] Please also refer to figure 1 , the first embodiment of the present invention provides an optical system 100 including a lens 10 and a prism 30 . In this embodiment, the lens 10 and the prism 30 included in the optical system 100 can be respectively made of polymethyl methacrylate (PMMA, acrylic). In other modified implementation manners, the lens 10 and the prism 30 may also be made of other transparent materials, such as glass, and are not limited to specific embodiments.

[0024] Please refer to Figure 2 to Figure 4 , the lens 10 includes a first light-emitting surface 11, a bottom surface 13 opposite to the first light-emitting surface 11, and an annular side surface 15 connecting the first light-emitting surface 11 and the bottom surface 13, wherein the first li...

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Abstract

The invention relates to an optical system comprising a lens and a prism. The lens comprises a first light-emergent surface, a bottom surface opposite to the first light-emergent surface and an annular lateral surface connecting the first light-emergent surface and the bottom surface. The bottom surface of the lens concaves towards the direction adjacent to the first light-emergent surface to form an accommodating groove used for accommodating a light-emitting diode light source, and the bottom, corresponding to the accommodating groove, of the lens is provided with a first light-incident surface. The prism is provided with a second light-incident surface and a second light-emergent surface parallel to each other, a plurality of triangular strip grooves arranged in an array are formed in the light-incident surface of the prism, the prism is provided with a first refracting surface and a second refracting surface which are connected each other and corresponding to each strip groove, and the prism is provided with a first side and a second side which are symmetrical relative to a central axis of the prism. The invention further relates to an illuminating device adopting the optical system. The illuminating device can meet the requirement of spotlighting in the directions spaced by a certain angle.

Description

technical field [0001] The invention relates to the field of illumination, and further relates to an optical system and an illumination device using the optical system. Background technique [0002] As traditional incandescent bulbs gradually fade out of the historical stage, the fourth-generation solid-state light source represented by Light Emitting Diode (LED) has gradually established its core leadership in the lighting field. At present, LED has become one of the most competitive new light sources in the 21st century due to its advantages of high efficiency, pure light color, low energy consumption, long life, and no pollution. With the continuous improvement of LED luminous flux and luminous efficiency, the application of LED in the field of lighting is becoming more and more extensive. However, the light emitted from the surface of the LED chip has a Lambertian distribution, which cannot be directly applied to the lighting system. Therefore, the design of the optical...

Claims

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Application Information

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IPC IPC(8): F21V5/04F21V5/02F21Y101/02F21Y115/10
Inventor 周明杰杜金
Owner OCEANKING DONGGUAN LIGHTING TECH
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