LIGHT-EMITTING UNIT
To obtain an improved and novel light-emitting unit so as to enable suppression of an inconvenient event due to deviation of, e.g, a bonding material.SOLUTION: A light-emitting unit includes: a light emission device that has a first surface and outputs a laser beam in a first direction; and an optic...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To obtain an improved and novel light-emitting unit so as to enable suppression of an inconvenient event due to deviation of, e.g, a bonding material.SOLUTION: A light-emitting unit includes: a light emission device that has a first surface and outputs a laser beam in a first direction; and an optical axis adjustment member that has a second surface crossing the first direction and facing the first surface, and a third surface that is extended in a second direction crossing the first direction as directed in the first direction and has a reflection region reflecting the laser beam output in the first direction to the second direction, and is attached to the light emission device by a bonding material interposed at least between the first surface and the second surface, changes an attachment position of the second surface in the second direction with respect to the first surface to enable the change of a position in the first direction of an optical axis of the laser beam reflected in the second direction in a reflection region. As a concave part, a first concave part housing at least a part of the bonding material is provided on at least one of the first and second surfaces.SELECTED DRAWING: Figure 1
【課題】例えば、接合材のはみ出しによる不都合な事象を抑制することが可能となるような、改善された新規な発光ユニットを得る。【解決手段】発光ユニットは、第一面を有し、第一方向にレーザ光を出力する発光装置と、第一方向と交差し当該第一面と面した第二面と、第一方向に向かうにつれて第一方向と交差した第二方向へ向かうように延び第一方向に出力されたレーザ光を第二方向へ反射する反射領域を有した第三面と、を有し、少なくとも第一面と第二面との間に介在した接合材によって発光装置に取り付けられ、第二方向における第二面の第一面に対する取付位置を変更することにより、反射領域で第二方向に反射されるレーザ光の光軸の第一方向における位置を変更可能な、光軸調整部材と、を備え、第一面および第二面のうち少なくとも一つに、凹部として、接合材の少なくとも一部を収容した第一凹部が設けられる。【選択図】図1 |
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