JP2017062943A - Light source device - Google Patents

Light source device Download PDF

Info

Publication number
JP2017062943A
JP2017062943A JP2015187663A JP2015187663A JP2017062943A JP 2017062943 A JP2017062943 A JP 2017062943A JP 2015187663 A JP2015187663 A JP 2015187663A JP 2015187663 A JP2015187663 A JP 2015187663A JP 2017062943 A JP2017062943 A JP 2017062943A
Authority
JP
Japan
Prior art keywords
light
fluorescent
excitation light
source device
light source
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2015187663A
Other languages
Japanese (ja)
Other versions
JP6663579B2 (en
Inventor
吉田　和弘
Kazuhiro Yoshida
和弘 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ushio Denki KK
Ushio Inc
Original Assignee
Ushio Denki KK
Ushio Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ushio Denki KK, Ushio Inc filed Critical Ushio Denki KK
Priority to JP2015187663A priority Critical patent/JP6663579B2/en
Publication of JP2017062943A publication Critical patent/JP2017062943A/en
Application granted granted Critical
Publication of JP6663579B2 publication Critical patent/JP6663579B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a structure which can increase strength of fluorescent light by increasing the number of fluorescent elements, which does not deteriorate color uniformity of emission light and which does not change a chromaticity value, in a light source device comprising a light-emitting element for emitting excitation light, the fluorescent element for radiating fluorescent light excited by the excitation light, and an optical member for condensing the excitation light toward the fluorescent element and for making the fluorescent light from the fluorescent element parallel light.SOLUTION: A light-emitting element comprises a pair of light-emitting elements 21, 22 oppositely arranged optically. Between the light-emitting element and a fluorescent element 3, first and second dichroic mirrors 41, 42 are disposed in a V-shaped manner for reflecting the excitation light from the light-emitting element toward the fluorescent element and for transmitting the fluorescent light from the fluorescent element. Between the first and second dichroic mirrors, a stray light shielding member 10 is provided.SELECTED DRAWING: Figure 1

Description

本発明は、プロジェクター等に利用される光源装置に関し、特に、発光素子からの励起光を蛍光に変換する蛍光体を用いた光源装置に係わるものである。   The present invention relates to a light source device used for a projector or the like, and more particularly to a light source device using a phosphor that converts excitation light from a light emitting element into fluorescence.

液晶プロジェクター等の画像投影機に用いられる光源として、レーザダイオードなどの固体発光素子よりなる励起光源と、この励起光源からの励起光を受けて蛍光を出射する蛍光体とを有する蛍光光源装置が提案されている。   As a light source used in an image projector such as a liquid crystal projector, a fluorescent light source device having an excitation light source composed of a solid light emitting element such as a laser diode and a phosphor that emits fluorescence upon receiving excitation light from the excitation light source is proposed. Has been.

例えば、特開２０１４−１２３０１４号公報（特許文献１）には、図３に示すように、レーザダイオードなどからなる励起光を出射する発光素子２と、該発光素子２から出射される励起光Ａが照射されて、該励起光とは異なる波長の蛍光Ｂを出射させる蛍光素子３と、前記励起光を反射して蛍光素子３に折り返すダイクロイックミラー４と、前記蛍光素子３に励起光を集光する集光レンズ５と、を備えた光源装置１が開示されている。なお、蛍光素子３はヒートシンク６によって放熱冷却されている。   For example, in Japanese Patent Application Laid-Open No. 2014-123014 (Patent Document 1), as shown in FIG. 3, a light emitting element 2 that emits excitation light such as a laser diode and an excitation light A emitted from the light emitting element 2 are disclosed. , The fluorescent element 3 that emits fluorescence B having a wavelength different from that of the excitation light, the dichroic mirror 4 that reflects the excitation light and folds it back to the fluorescent element 3, and collects the excitation light on the fluorescent element 3 A light source device 1 having a condenser lens 5 is disclosed. The fluorescent element 3 is radiated and cooled by a heat sink 6.

しかして、このような光源装置においては、出射光の強度を大きくすることが望まれており、そのためには、励起光源部の数を増やすことが必要であり、この励起光源部と、ダイクロイックミラーを対称位置に一対ずつ配置することによって実現化できる。
そのような改良例の構成が図４に示されていて、光源装置１は、左右の対称位置に配置された励起光源としての発光素子２１、２２と、この発光素子２１、２２から発する励起光Ａの一部を蛍光Ｂに変換して反射する蛍光素子３と、前記発光素子２１、２２からコリメータレンズ７１、７２を経た励起光Ａを蛍光素子３に向けて反射するとともに、前記蛍光素子３からの蛍光Ｂを透過する第１のダイクロイックミラー４１および第２のダイクロイックミラー４２と、前記励起光を蛍光素子３に向けて集光する集光光学系５とからなる構成である。 Therefore, in such a light source device, it is desired to increase the intensity of the emitted light. For this purpose, it is necessary to increase the number of excitation light source units. The excitation light source unit and the dichroic mirror are required. This can be realized by arranging a pair of the two at symmetrical positions.
The configuration of such an improved example is shown in FIG. 4, and the light source device 1 includes light emitting elements 21 and 22 as excitation light sources arranged at left and right symmetrical positions, and excitation light emitted from the light emitting elements 21 and 22. The fluorescent element 3 that converts a part of A into fluorescence B and reflects it, and the excitation light A that has passed through the collimator lenses 71 and 72 from the light emitting elements 21 and 22 is reflected toward the fluorescent element 3, and the fluorescent element 3 The first dichroic mirror 41 and the second dichroic mirror 42 that transmit the fluorescence B from the light source, and the condensing optical system 5 that condenses the excitation light toward the fluorescent element 3.

かかる構成において、対向配置された一対の発光素子２１、２２からの励起光Ａは、それぞれ第１のダイクロイックミラー４１および第２のダイクロイックミラー４２によって反射されて、集光光学系５によって集光されて蛍光素子３に照射される。ここで所定の波長に変換された蛍光Ｂは、集光光学系５を経てダイクロイックミラー４１、４２を透過して光源装置１から出射される。
このような配置構造とすることで、励起光源部である発光素子の数を増やすことができて出射される蛍光の強度を増すことができるとともに、この励起光源を1箇所に集中させて配置しなくて済むので、その排熱が容易になるという利点がある。 In such a configuration, the excitation light A from the pair of light emitting elements 21, 22 arranged opposite to each other is reflected by the first dichroic mirror 41 and the second dichroic mirror 42 and condensed by the condensing optical system 5. Then, the fluorescent element 3 is irradiated. Here, the fluorescence B converted into a predetermined wavelength passes through the condensing optical system 5, passes through the dichroic mirrors 41 and 42, and is emitted from the light source device 1.
With such an arrangement structure, it is possible to increase the number of light-emitting elements that are excitation light sources and increase the intensity of emitted fluorescence, and to concentrate the excitation light sources in one place. Since it is not necessary, there is an advantage that the exhaust heat becomes easy.



しかしながら、かかる構成を採用すると、ダイクロイックミラーの反射率が１００％でないために、励起光の一部がダイクロイックミラーを通過し、通過した先にある他のダイクロイックミラーで出射側に反射される、という問題が生じることがわかった。
図４には、その形態も示されていて、第１の発光素子２１からの励起光Ａの一部Ａ’が第１のダイクロイックミラー４１を透過して、対向する第２のダイクロイックミラー４２によって反射されていく態様が示されている。
なお、図４においては、煩雑さを避ける意味で、第１の発光素子２１からの励起光の一部が第１のダイクロイックミラー４１を透過する態様のみが示されているが、他方の第２の発光素子２２からの励起光についても同様である。
このようにダイクロイックミラー４１、４２を透過してしまう励起光（迷光）Ａ’は、スポットサイズが小さい状態で出射されるため、平行光化されず、蛍光素子から出射された蛍光スポットの中で、小さなスポットとして視認されてしまう。つまり、光源装置から出射された蛍光出射領域おいて、色むらが生じてしまうという不具合がある。

However, when such a configuration is adopted, since the reflectance of the dichroic mirror is not 100%, a part of the excitation light passes through the dichroic mirror and is reflected on the emission side by another dichroic mirror that has passed therethrough. It turns out that a problem arises.
In FIG. 4, the form is also shown. A part A ′ of the excitation light A from the first light emitting element 21 is transmitted through the first dichroic mirror 41 and is opposed to the second dichroic mirror 42 facing the first light emitting element 21. The manner of reflection is shown.
In FIG. 4, only a mode in which a part of the excitation light from the first light emitting element 21 is transmitted through the first dichroic mirror 41 is shown in order to avoid complexity, but the other second The same applies to the excitation light from the light emitting element 22.
The excitation light (stray light) A ′ that passes through the dichroic mirrors 41 and 42 in this way is emitted in a state where the spot size is small, and thus is not converted into parallel light, but is among the fluorescent spots emitted from the fluorescent element. It will be visually recognized as a small spot. That is, there is a problem that color unevenness occurs in the fluorescence emission region emitted from the light source device.

特開２０１４−１２３０１４号公報JP 2014-123014 A

この発明が解決しようとする課題は、励起光を出射する発光素子と、前記励起光によって励起されて蛍光を放射する蛍光素子と、前記励起光を前記蛍光素子に向けて集光し、前記蛍光素子からの蛍光を平行光にする光学部材とからなる光源装置において、励起光源である発光素子の数を増やして、蛍光素子からの蛍光の光強度を大きくするとともに、蛍光照射領域における色むらが少ない光源装置を提供することである。   The problems to be solved by the present invention include a light emitting element that emits excitation light, a fluorescent element that emits fluorescence when excited by the excitation light, and condenses the excitation light toward the fluorescent element. In a light source device comprising an optical member that converts fluorescence from an element into parallel light, the number of light emitting elements as excitation light sources is increased to increase the light intensity of the fluorescence from the fluorescence element, and color unevenness in the fluorescence irradiation region It is to provide a small number of light source devices.

上記課題を解決するために、この発明に係る光源装置は、発光素子が、光学的に対向配置された一対の発光素子からなり、該発光素子と蛍光素子の間には、前記発光素子からの励起光を前記蛍光素子に向けて反射し、前記蛍光素子からの蛍光を透過する第１および第２のダイクロイックミラーがＶ字形状をなして配設され、前記第１および第２のダイクロイックミラーの間には、迷光遮蔽部材が設けられていることを特徴とする。
また、前記光学部材は、前記第１および第２のダイクロイックミラーと前記蛍光素子の間に設けられた共通の光学部材であることを特徴とする。
また、前記迷光遮蔽部材は、板状体であって、その延伸方向が前記光学部材の光軸上にあることを特徴とする。
また、前記迷光遮蔽部材は、前記励起光を少なくとも拡散することを特徴とする。
また、前記迷光遮蔽部材は、アルミナよりなることを特徴とする。 In order to solve the above-described problems, a light source device according to the present invention includes a pair of light-emitting elements in which a light-emitting element is optically arranged opposite to each other. First and second dichroic mirrors that reflect excitation light toward the fluorescent element and transmit fluorescence from the fluorescent element are arranged in a V-shape, and the first and second dichroic mirrors In the meantime, a stray light shielding member is provided.
Further, the optical member is a common optical member provided between the first and second dichroic mirrors and the fluorescent element.
Further, the stray light shielding member is a plate-like body, and its extending direction is on the optical axis of the optical member.
The stray light shielding member diffuses at least the excitation light.
The stray light shielding member is made of alumina.

この発明の光源装置によれば、一対の発光素子に対応する第1および第２のダイクロイックミラーの間に迷光遮蔽部材を設けたので、一方のダイクロイックミラーを透過した励起光（迷光）が、他方のダイクロイックミラーにまで至ることがなく、蛍光素子からの蛍光照射領域に混ざって色むらを生じるようなことがない状態で、蛍光の強度を増すことができるものである。   According to the light source device of the present invention, since the stray light shielding member is provided between the first and second dichroic mirrors corresponding to the pair of light emitting elements, the excitation light (stray light) transmitted through one dichroic mirror is The intensity of the fluorescence can be increased in a state where the dichroic mirror does not reach the dichroic mirror and color unevenness is not caused by mixing with the fluorescent irradiation region from the fluorescent element.

本発明の光源装置を示す概略図。Schematic which shows the light source device of this invention. 他の実施例の概略図。Schematic of another Example. 従来技術の概略図。Schematic of prior art. 従来技術の改良例の概略図。Schematic of the improvement example of a prior art.

図１に示されるように、本発明の光源装置１は、励起光を放射する発光素子（励起光源）２１、２２が一対対向配置されている。この励起光の光線上には、一対の第１のダイクロイックミラー４１と第２のダイクロイックミラー４２がＶ字状となるように配設されている。
そして、前記ダイクロイックミラー４１、４２の下方には共通する１つのレンズからなる集光光学部材５が設けられ、さらにその下方には、ヒートシンク６上に載置された蛍光素子３が配置されている。
発光素子２１、２２は例えば青色光（例えば、波長が４３０〜４７０ｎｍの光）を発する半導体レーザやＬＥＤなどからなる。 As shown in FIG. 1, the light source device 1 of the present invention has a pair of opposed light emitting elements (excitation light sources) 21 and 22 that emit excitation light. A pair of first dichroic mirror 41 and second dichroic mirror 42 are arranged in a V shape on the beam of excitation light.
A condensing optical member 5 composed of a single common lens is provided below the dichroic mirrors 41 and 42, and a fluorescent element 3 placed on the heat sink 6 is disposed below the condensing optical member 5. .
The light emitting elements 21 and 22 include, for example, a semiconductor laser or LED that emits blue light (for example, light having a wavelength of 430 to 470 nm).

また、蛍光素子３は、例えば、ＹＡＧ系の結晶材料である蛍光体を酸化アルミ等と混晶して形成されたプレート状の多結晶体である。また、蛍光素子３は、粉末の蛍光体を、シリコーン等のバインダー等に混入し、基材に塗布して形成してもよい。そして、蛍光素子３は、入射された光が集光光学部材５に向けて反射するように、ヒートシンク６側の面に誘電体多層膜からなる反射膜を備えている。
ここで、光学部材５は、一方の第１の発光素子２１からの励起光と、他方の第２の発光素子２２からの励起光の両者をともに集光する共通した１つの光学部材として構成されることが好適である。こうすることで、部品点数の減少が図れる。 The fluorescent element 3 is, for example, a plate-like polycrystal formed by mixing a phosphor, which is a YAG-based crystal material, with aluminum oxide or the like. The fluorescent element 3 may be formed by mixing a powdered phosphor in a binder such as silicone and applying it to a substrate. The fluorescent element 3 includes a reflective film made of a dielectric multilayer film on the surface of the heat sink 6 so that incident light is reflected toward the condensing optical member 5.
Here, the optical member 5 is configured as one common optical member that condenses both the excitation light from one first light emitting element 21 and the excitation light from the other second light emitting element 22. Is preferable. By doing so, the number of parts can be reduced.

前記発光素子２１、２２から出射された励起光は、コリメータレンズ７１、７２を介して平行光とされ、それぞれ第１のダイクロイックミラー４１と第２のダイクロイックミラー４２によって反射され、光学部材５によって集光されて蛍光素子３に照射される。
この蛍光素子３において、励起光である青色光の一部が、例えば、波長が５２５〜５７５ｎｍにピークを持ち、４５０〜８００ｎｍにかけて広い可視域のスペクトルを持った黄緑光に変換される。
こうして蛍光素子３で変換された蛍光は、光学部材５によって平行光とされて第１および第２のダイクロイックミラー４１、４２に至り、ここを透過して上方に出射されるものである。 Excitation light emitted from the light emitting elements 21 and 22 is converted into parallel light through collimator lenses 71 and 72, reflected by the first dichroic mirror 41 and the second dichroic mirror 42, and collected by the optical member 5. The fluorescent element 3 is irradiated with the light.
In this fluorescent element 3, a part of blue light as excitation light is converted into yellowish green light having a peak at a wavelength of 525 to 575 nm, for example, and a broad visible spectrum from 450 to 800 nm.
The fluorescence thus converted by the fluorescent element 3 is converted into parallel light by the optical member 5, reaches the first and second dichroic mirrors 41, 42, passes therethrough, and is emitted upward.

そして、前記Ｖ字状の第１および第２のダイクロイックミラー４１、４２の間には、迷光遮蔽部材１０が設けられている。
この迷光遮蔽部材１０は、励起光を拡散する性質、励起光を吸収する性質のうち少なくとも一つを備えており、その具体的な材料としては、アルミナ等からなる板状体を用いることが好適である。
第１のダイクロイックミラー４１および第２のダイクロイックミラー４２を透過した励起光（迷光）が迷光遮蔽部材１０に照射されると、この励起光は拡散乃至吸収され、蛍光出射側に出射されることがなく、蛍光出射領域においてスポットとして視認されることがなく、色むらとして認識されることがなくなる。
前記迷光遮蔽部材１０が板状体であるとき、その延伸方向は、光学部材５の光軸方向と一致するように配置することが好ましく、こうすることで、蛍光素子３からの蛍光を遮る量が最小となり、蛍光を効率良く光源装置１から取り出すことができる。 A stray light shielding member 10 is provided between the V-shaped first and second dichroic mirrors 41 and 42.
The stray light shielding member 10 has at least one of a property of diffusing excitation light and a property of absorbing excitation light, and a specific material is preferably a plate-like body made of alumina or the like. It is.
When the excitation light (stray light) transmitted through the first dichroic mirror 41 and the second dichroic mirror 42 is applied to the stray light shielding member 10, the excitation light is diffused or absorbed and emitted to the fluorescence emission side. In addition, it is not visually recognized as a spot in the fluorescence emission region, and is not recognized as uneven color.
When the stray light shielding member 10 is a plate-like body, the extending direction is preferably arranged so as to coincide with the optical axis direction of the optical member 5. By doing so, the amount of shielding the fluorescence from the fluorescent element 3 And the fluorescence can be efficiently extracted from the light source device 1.

上記図１の実施例では、一対の発光素子２１、２２は第１および第２のダイクロイックミラー４１、４２を介して文字通りに対向配置されているが、これに限られない。
図２にその例が示されていて、一対の発光素子２１、２２は上方に向けて配置され、これらからの励起光は、第１の反射ミラー８１と第２の反射ミラー８２によって、それぞれ、第１のダイクロイックミラー４１と第２のダイクロイックミラー４２に向けて反射されるものである。 In the embodiment of FIG. 1 described above, the pair of light emitting elements 21 and 22 are literally arranged opposite to each other via the first and second dichroic mirrors 41 and 42, but the present invention is not limited to this.
An example is shown in FIG. 2, and the pair of light emitting elements 21 and 22 are arranged upward, and excitation light from these is reflected by the first reflecting mirror 81 and the second reflecting mirror 82, respectively. The light is reflected toward the first dichroic mirror 41 and the second dichroic mirror 42.

また、これとは逆に、発光素子２１、２２を下方に向けて配置して、反射ミラーによって第１および第２のダイクロイックミラーに向けて反射するものであってもよいし、一方の発光素子２１を上方に向けて配置し、他方の発光素子２２を下方に向けて配置するものであってもよい。
上記のように、一対の発光素子２１、２２は、文字通りの対向配置に限られず、光学的に対向配置されていればよい。つまり、この発光素子２１、２２からの励起光が、最終的にはＶ字状配置された一対のダイクロイックミラー４１、４２に対して、対向方向から入射する位置関係にあればよく、このダイクロイックミラー４１、４２で共に蛍光素子３に向けて反射されるような配置関係にあればよい。 On the contrary, the light emitting elements 21 and 22 may be arranged downward and reflected by the reflecting mirror toward the first and second dichroic mirrors, or one of the light emitting elements. 21 may be disposed facing upward, and the other light emitting element 22 may be disposed facing downward.
As described above, the pair of light emitting elements 21 and 22 is not limited to the literally opposed arrangement, but may be optically arranged opposite to each other. That is, the excitation light from the light emitting elements 21 and 22 may be in a positional relationship where it finally enters the pair of dichroic mirrors 41 and 42 arranged in a V shape from the opposite direction. It suffices if the arrangement relationship is such that both 41 and 42 are reflected toward the fluorescent element 3.

以上説明したように、本発明に係る光源装置は、一対の発光素子が光学的に対向配置され、発光素子と蛍光素子の間に、前記発光素子からの励起光を前記蛍光素子に向けて反射し、前記蛍光素子からの蛍光を透過する第１および第２のダイクロイックミラーがＶ字形状をなして配設され、前記第１および第２のダイクロイックミラーの間には、迷光遮蔽部材が設けられていることにより、前記発光素子からの励起光の一部が迷光としてダイクロイックミラーを透過することがあっても、迷光遮蔽部材によって遮蔽されて、対向する他方のダイクロイックミラーにまで到達することがないので、装置外に出射されることがなく、出射光の色均一性を悪化させることがなく色度値を変化させることもない。
こうして、発光素子の数を増やすことにより出射する蛍光の強度を増した光源装置の構造を実現できるものである。 As described above, in the light source device according to the present invention, a pair of light emitting elements are optically arranged opposite to each other, and excitation light from the light emitting elements is reflected toward the fluorescent elements between the light emitting elements and the fluorescent elements. The first and second dichroic mirrors that transmit the fluorescence from the fluorescent element are disposed in a V shape, and a stray light shielding member is provided between the first and second dichroic mirrors. Therefore, even if a part of the excitation light from the light emitting element may pass through the dichroic mirror as stray light, it is shielded by the stray light shielding member and does not reach the other dichroic mirror facing it. Therefore, the light is not emitted outside the apparatus, the color uniformity of the emitted light is not deteriorated, and the chromaticity value is not changed.
Thus, it is possible to realize a light source device structure in which the intensity of emitted fluorescence is increased by increasing the number of light emitting elements.

１ 光源装置
２１ 第１の発光素子（励起光源）
２２ 第２の発光素子（励起光源）
３ 蛍光素子
４１ 第１のダイクロイックミラー
４２ 第２のダイクロイックミラー
５ 集光光学部材
６ ヒートシンク
８１ 第１の反射ミラー
８２ 第２の反射ミラー
Ａ 励起光
Ｂ 蛍光


DESCRIPTION OF SYMBOLS 1 Light source device 21 1st light emitting element (excitation light source)
22 Second light emitting element (excitation light source)
DESCRIPTION OF SYMBOLS 3 Fluorescent element 41 1st dichroic mirror 42 2nd dichroic mirror 5 Condensing optical member 6 Heat sink 81 1st reflective mirror 82 2nd reflective mirror A Excitation light B Fluorescence


Claims (5)

励起光を出射する発光素子と、前記励起光によって励起されて蛍光を放射する蛍光素子と、前記励起光を前記蛍光素子に向けて集光し、前記蛍光素子からの蛍光を平行光にする光学部材とからなる光源装置であって、
前記発光素子は、光学的に対向配置された一対の発光素子からなり、
前記発光素子と前記蛍光素子の間には、前記発光素子からの励起光を前記蛍光素子に向けて反射し、前記蛍光素子からの蛍光を透過する第１および第２のダイクロイックミラーがＶ字形状をなして配設され、
前記第１および第２のダイクロイックミラーの間には、迷光遮蔽部材が設けられている、
ことを特徴とする光源装置。 A light emitting element that emits excitation light, a fluorescent element that emits fluorescence when excited by the excitation light, and an optical that condenses the excitation light toward the fluorescent element and converts the fluorescence from the fluorescent element into parallel light A light source device comprising a member,
The light emitting element is composed of a pair of light emitting elements optically opposed to each other,
Between the light emitting element and the fluorescent element, first and second dichroic mirrors that reflect excitation light from the light emitting element toward the fluorescent element and transmit fluorescence from the fluorescent element are V-shaped. Arranged in the form of
A stray light shielding member is provided between the first and second dichroic mirrors.
A light source device characterized by that. 前記光学部材は、前記第１および第２のダイクロイックミラーと前記蛍光素子の間に設けられた共通の光学部材であることを特徴とする請求項１に記載の光源装置。   The light source device according to claim 1, wherein the optical member is a common optical member provided between the first and second dichroic mirrors and the fluorescent element. 前記迷光遮蔽部材は、板状体であって、その延伸方向が前記光学部材の光軸上にあることを特徴とする請求項１に記載の光源装置。   The light source device according to claim 1, wherein the stray light shielding member is a plate-like body, and an extending direction thereof is on an optical axis of the optical member. 前記迷光遮蔽部材は、前記励起光を少なくとも拡散することを特徴とする請求項１に記載の光源装置。   The light source device according to claim 1, wherein the stray light shielding member diffuses at least the excitation light. 前記迷光遮蔽部材は、アルミナよりなることを特徴とする請求項１に記載の光源装置。


The light source device according to claim 1, wherein the stray light shielding member is made of alumina.


JP2015187663A 2015-09-25 2015-09-25 Light source device Active JP6663579B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015187663A JP6663579B2 (en) 2015-09-25 2015-09-25 Light source device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015187663A JP6663579B2 (en) 2015-09-25 2015-09-25 Light source device

Publications (2)

Publication Number Publication Date
JP2017062943A true JP2017062943A (en) 2017-03-30
JP6663579B2 JP6663579B2 (en) 2020-03-13

Family

ID=58429016

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2015187663A Active JP6663579B2 (en) 2015-09-25 2015-09-25 Light source device

Country Status (1)

Country Link
JP (1) JP6663579B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108873582A (en) * 2018-07-04 2018-11-23 成都九天光学技术有限公司 A kind of compact-sized light source of projector
KR101988653B1 (en) * 2018-08-09 2019-06-14 태창엔이티 주식회사 Three wave length laser searchlight unit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009271395A (en) * 2008-05-09 2009-11-19 Panasonic Corp Wide color gamut projector
US20120147601A1 (en) * 2009-07-31 2012-06-14 Appotronics Ltd. Illumination system for stage lighting and method for providing high-brightness white light
JP2013114840A (en) * 2011-11-28 2013-06-10 Seiko Epson Corp Light source device, and projector
JP2014071083A (en) * 2012-10-01 2014-04-21 Ushio Inc Fluorophotometer
WO2014174559A1 (en) * 2013-04-22 2014-10-30 日立マクセル株式会社 Light source apparatus and image display apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009271395A (en) * 2008-05-09 2009-11-19 Panasonic Corp Wide color gamut projector
US20120147601A1 (en) * 2009-07-31 2012-06-14 Appotronics Ltd. Illumination system for stage lighting and method for providing high-brightness white light
JP2013114840A (en) * 2011-11-28 2013-06-10 Seiko Epson Corp Light source device, and projector
JP2014071083A (en) * 2012-10-01 2014-04-21 Ushio Inc Fluorophotometer
WO2014174559A1 (en) * 2013-04-22 2014-10-30 日立マクセル株式会社 Light source apparatus and image display apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108873582A (en) * 2018-07-04 2018-11-23 成都九天光学技术有限公司 A kind of compact-sized light source of projector
CN108873582B (en) * 2018-07-04 2019-08-02 成都九天光学技术有限公司 A kind of compact-sized light source of projector
KR101988653B1 (en) * 2018-08-09 2019-06-14 태창엔이티 주식회사 Three wave length laser searchlight unit

Also Published As

Publication number Publication date
JP6663579B2 (en) 2020-03-13

Similar Documents

Publication Publication Date Title
US10061188B2 (en) Illumination system and projection apparatus having reflection cover
KR101825537B1 (en) Light-emitting device and projection system
US9429830B2 (en) Fluorescent light emitting element and projector
JP5673247B2 (en) Light source device and projector
US9677743B2 (en) Lighting device with a pump laser row and method for operating said lighting device
WO2009131126A1 (en) Vehicular lighting fixture
JP6072817B2 (en) Light source device and projection display device
US20160085143A1 (en) Light-emitting device and related light source system
WO2014196015A1 (en) Illumination optical system and projector
US20120106127A1 (en) Light emitting device
JP6596659B2 (en) Light source device and projection display device
TW201243482A (en) Projector
WO2017056468A1 (en) Light source device and projection device
JP2017151250A (en) Wavelength conversion element, light source device, and projector
JP2017156403A (en) Fluorescent light source device
WO2016167110A1 (en) Illumination device and projection-type display apparatus
JP2012014972A (en) Light source device and projector
JP6394076B2 (en) Light source device and projector
JP2018147703A (en) Light source device
JP6663579B2 (en) Light source device
JP5541175B2 (en) Light source device using fluorescent material
US20150198305A1 (en) Light Source System
JP2017126442A (en) Fluorescent light source device
JP2014160178A (en) Illumination optical system and electronic device having the same
WO2019124120A1 (en) Optical unit and projection display device

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20180315

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20190117

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190122

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190305

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20190801

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20190807

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20200117

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20200130

R151 Written notification of patent or utility model registration

Ref document number: 6663579

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250