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Illumination array and optical measuring system for detecting object

An optical measurement system and array technology, applied in the field of illumination arrays, can solve the problem of unutilized light quantity, etc., and achieve the effects of easy excitation, effective excitation, and uniform illumination distribution.

Active Publication Date: 2009-07-15
ASM ASSEMBLY SYST GMBH & CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, the use of line scan cameras also has its disadvantages, that is, it is not suitable to use traditional lighting arrays that are usually square, because this lighting array usually illuminates a square area, thus reducing a large part of the generated light. not available

Method used

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  • Illumination array and optical measuring system for detecting object

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Embodiment Construction

[0025] Such as figure 1As shown, an illumination array 100 includes a plurality of light emitting diodes 110 that are respectively optically coupled to an optical waveguide 115 . The LEDs 110 are divided into two groups, a first group 111a and a second group 111b. The end surfaces of the optical waveguides 115 each constitute a light emitting element. The light-emitting elements corresponding to the grouping of the light-emitting diodes 110 are also divided into two groups respectively composed of the first light-emitting element 120a and the second light-emitting element 120b. The light-emitting end faces of the optical waveguide 115 are curved in such a way that each end face constitutes a focusing lens system 121 . The lens system 121 may have a telecentric geometry so that focusing with an exceptionally large depth of field may be achieved. The end faces of the optical waveguides constituting the first light-emitting elements 120a are arranged along a straight line, the...

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Abstract

The invention relates to a lighting array (100) comprising a plurality of luminous elements (120a, 120b) that are located on one illumination plane (250) and are equipped for illuminating an illumination line (140, 240) which runs parallel to the illumination plane (250). The luminous elements (120a, 120b) are disposed in two groups in such a way that one respective group of luminous elements (120a or 120b) is arranged along a row of lights (130a or 130b) while the two rows of lights (130a, 130b) are oriented parallel to the illumination line (140, 240) and are spaced apart so as to be offset from each other in a parallel manner. The two rows of lights (130a, 130b) are also placed symmetric to the illumination line (140, 240) such that the light beams emitted by the two rows of lights (130a, 130b) impinge the illumination line (140, 240) on different planes of incidence. The luminous elements (120a, 120b) are preferably provided with a lens system (121) for focusing the emitted light beams onto the illumination line (140, 240) so as to allow for great and at least nearly constant luminous intensity within the illumination line (140, 240). The invention further relates to an optical measuring system for detecting objects, comprising an inventive lighting array (100) and a line sensor (261).

Description

technical field [0001] The invention relates to an illumination array with a plurality of light-emitting elements arranged in an illumination plane for generating an illumination row on an object to be inspected. Furthermore, the invention relates to an optical measuring system for detecting objects and having an illumination array as described above, said optical measuring system being used in particular for detecting holding devices held by a placement head. Picked components. Background technique [0002] The automatic assembly of component carriers, including in particular printed circuit boards or other types of mountable substrates used in the electronics field, usually takes place on so-called automatic assembly machines. Wherein, the component is transferred from a component supply device to an assembly position by means of a placement head, and placed on a specified component installation position on the component carrier. As electronic components are increasingly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K13/04F21K99/00
CPCH05K13/08H05K13/0813
Inventor 哈拉尔德·斯坦兹尔卡尔-海因茨·贝希乔基姆·伊尔菲尔德奥利弗·维茨
Owner ASM ASSEMBLY SYST GMBH & CO
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