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Light ray mixing rod

A technology of light mixing rods and mixing rods, which is applied in the coupling of optical waveguides, light guides, optics, etc., and can solve problems such as complex structures

Inactive Publication Date: 2007-04-04
CARL ZEISS JENA GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] These variables are all very complex in structure

Method used

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Embodiment Construction

[0034] FIG. 1 shows a light mixing rod 1 according to the invention in the shape of a parallelepiped, comprising a light entrance surface 2 and a light exit surface 3 , both of which have a rectangular cross-section. On each side surface perpendicular to each other, only surface 4 and 5 have been shown for simplification of illustration among the figures, all have three light emitting diodes 6 with the same emission characteristics, and its light propagation direction (axis) is the same as that of light mixing rod 1 The light guide direction in is vertical. In its light propagation direction, the emission characteristic of the light-emitting diode 6 on the reflective side surfaces 4 and 5 has the largest possible aperture angle in the longitudinal direction of the optical axis 7 of the light mixing rod 1 . In a plane perpendicular to the optical axis 7 of the light mixing rod 1 , they emit little or no energy in order to form the smallest possible aperture angle on the illumin...

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Abstract

The optical integrator is in the form of a rectangular section bar having an input surface (2) and an output surface (3). Set into the sides are three luminescent diodes (6) that have the same characteristics that have large optical spread angles. A further two (8) are at set across the bar. The output light is reflected off the inner surfaces to create a homogeneous light field.

Description

technical field [0001] The invention relates to a light mixing rod for homogenizing a light beam, preferably used in a projection device, wherein the center of intensity of the light beam is moved longitudinally between a light entrance surface and a light exit surface, a reflective surface is positioned at the light mixing Inside the rod; the surface normal of the reflective surface is vertical or inclined relative to the longitudinal direction, and part of the light is reflected by the reflective surface to guide the light beam. Background technique [0002] Light mixing rods (integrators) are used in the field of optics, especially where uniform illumination of the illuminated area is required. The specific structures here are either solid mixing rods (using total reflection on the face in contact with the air) or hollow mixing rods, which essentially consist of a basic body with a uniform reflective coating on the side surfaces. Light rays entering the integrator throug...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/10G02B27/14G02B6/00G02B6/42G02B27/09
CPCG02B27/0994G02B6/00G02B27/14Y10S385/901G02B27/0927G02B27/1006G02B27/09G02B6/42G02B6/10
Inventor 克里斯弗莱德·西曼诺斯基延斯·霍夫曼恩里科·盖斯勒阿尔内·特勒尔斯奇马里奥·齐尔克哈拉尔德·基斯林
Owner CARL ZEISS JENA GMBH