JP6806387B2 - Projector device - Google Patents

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JP6806387B2
JP6806387B2 JP2019199495A JP2019199495A JP6806387B2 JP 6806387 B2 JP6806387 B2 JP 6806387B2 JP 2019199495 A JP2019199495 A JP 2019199495A JP 2019199495 A JP2019199495 A JP 2019199495A JP 6806387 B2 JP6806387 B2 JP 6806387B2
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concave mirror
light
light shielding
optical system
projector device
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JP2020030423A (en
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貴 山口
貴 山口
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本発明は、投射光学系内の屈折素子からなる結像光学系の出射側に、透光材料の基体前面に反射コートによる反射面が形成された凹面鏡を配置したプロジェクター装置に関する。 The present invention relates to a projector device in which a concave mirror having a reflective surface formed by a reflective coat formed on the front surface of a substrate of a translucent material is arranged on the exit side of an imaging optical system composed of a refracting element in the projection optical system.

プロジェクターの広角化・短焦点化のために、投射光学系内の屈折素子からなる結像光学系の出射側に、透光材料を基体として、その基体前面に反射コートを施すことにより反射面を形成している凹面鏡を配置した構成が考案されている（例えば特許文献１参照）。
また一方で、高輝度化のための光源ランプも高出力化が進んでいる。 In order to widen the angle and shorten the focal length of the projector, a reflective surface is provided on the exit side of the imaging optical system consisting of refracting elements in the projection optical system by using a translucent material as a substrate and applying a reflective coating to the front surface of the substrate. A configuration in which the forming concave mirror is arranged has been devised (see, for example, Patent Document 1).
On the other hand, the output of light source lamps for increasing the brightness is also increasing.

特開２０１３−１５８５３号公報Japanese Unexamined Patent Publication No. 2013-15853

ところで、プロジェクターの構成上、凹面鏡の反射面付近に高輝度の投射光が集光するが、その際に、凹面鏡の反射面を構成する反射コートが、例えば製品不良や劣化により剥離し、光学樹脂やガラスといった透光材料により形成された基体が剥き出しになってしまった場合、以下のような問題がある。
すなわち、本来ならば反射面により反射されるはずの投射光が基体を透過して、凹面鏡裏面側の外装カバー等の部品に投射光が照射され、照射された部分が熱により変形や発火する危険性がある。 By the way, due to the configuration of the projector, high-intensity projected light is collected near the reflective surface of the concave mirror. At that time, the reflective coat constituting the reflective surface of the concave mirror is peeled off due to, for example, product defect or deterioration, and the optical resin is used. When the substrate formed of a translucent material such as glass or glass is exposed, there are the following problems.
That is, there is a danger that the projected light that would otherwise be reflected by the reflecting surface will pass through the substrate and the projected light will be applied to parts such as the exterior cover on the back side of the concave mirror, and the irradiated part will be deformed or ignited by heat. There is sex.

本発明の課題は、プロジェクター装置において、凹面鏡の反射面への入射光が基体裏面側に透過するのを防止することである。 An object of the present invention is to prevent light incident on a reflecting surface of a concave mirror from being transmitted to the back surface side of a substrate in a projector device.

以上の課題を解決するため、請求項１に記載の発明は、
画像調整素子側からの画像光が入射される第一光学系と、
透光材料により形成された基体の前面に反射コートによる反射面が形成され、前記第一光学系からの出射光を被投射面に向けて反射する凹面鏡と、
前記第一光学系の一部および前記凹面鏡を内包する外装カバーと、
を有し、
前記第一光学系からの投射光は、前記凹面鏡の前記反射面付近で集光し、
前記凹面鏡の前記基体と前記外装カバーとの間に、光を反射または散乱する光遮蔽面を有する光遮蔽部材を備え、
前記光遮蔽部材により、前記基体を透過した光線が前記光遮蔽部材以外に当たらない、
ことを特徴とする。 In order to solve the above problems, the invention according to claim 1 is
The first optical system in which the image light from the image adjustment element side is incident, and
A concave mirror in which a reflective surface formed by a reflective coat is formed on the front surface of a substrate formed of a translucent material and the light emitted from the first optical system is reflected toward the projected surface.
An exterior cover containing a part of the first optical system and the concave mirror,
Have,
The projected light from the first optical system is collected in the vicinity of the reflecting surface of the concave mirror.
A light shielding member having a light shielding surface that reflects or scatters light is provided between the substrate of the concave mirror and the exterior cover.
Due to the light shielding member, the light rays transmitted through the substrate do not hit other than the light shielding member.
It is characterized by that.

請求項２に記載の発明は、
請求項１に記載のプロジェクター装置において、
前記凹面鏡を一端側に位置及び角度を微調整可能に固定する固定部材を有し、
前記固定部材は、前記凹面鏡の前記前面の反対側の面である裏面側に配置され、少なくとも前記凹面鏡の前記反射面に対応する裏面を覆うように突出した形状の延設部が設置され、
前記光遮蔽部材は、前記延設部に設置される、
ことを特徴とする。 The invention according to claim 2
In the projector device according to claim 1,
A fixing member for fixing the concave mirror to one end side so that the position and angle can be finely adjusted is provided.
The fixing member is arranged on the back surface side, which is the surface opposite to the front surface of the concave mirror, and an extension portion having a protruding shape is installed so as to cover at least the back surface corresponding to the reflection surface of the concave mirror.
The light shielding member is installed in the extension portion.
It is characterized by that.

請求項３に記載の発明は、
請求項１または２に記載のプロジェクター装置において、
前記外装カバーは、開口部を有し、
前記開口部は、透光材料にて封鎖される、
ことを特徴とする。 The invention according to claim 3
In the projector device according to claim 1 or 2.
The exterior cover has an opening and
The opening is sealed with a translucent material.
It is characterized by that.

請求項４に記載の発明は、
請求項１または２に記載のプロジェクター装置において、
前記光遮蔽部材は、前記外装カバーの内面全体に備えられる、
ことを特徴とする。 The invention according to claim 4
In the projector device according to claim 1 or 2.
The light shielding member is provided on the entire inner surface of the exterior cover.
It is characterized by that.

また、他の第１の発明は、投射光学系内の屈折素子からなる結像光学系の出射側に、透光材料の基体前面に反射コートによる反射面が形成された凹面鏡を配置したプロジェクター装置であって、
前記凹面鏡の前記基体裏面側に光遮蔽部材を配置して備えることを特徴とする。 Another first invention is a projector device in which a concave mirror having a reflective surface formed by a reflective coat formed on the front surface of a substrate of a translucent material is arranged on the exit side of an imaging optical system composed of a refracting element in the projection optical system. And
A light shielding member is arranged and provided on the back surface side of the substrate of the concave mirror.

更に、他の第２の発明は、上記他の１の発明であって、前記光遮蔽部材は、前記凹面鏡の前記反射面への入射光が前記基体から裏面側に透過するのを防いで前記入射光を反射または散乱する光遮蔽面を有することを特徴とする。 Further, another second invention is the other one invention, wherein the light shielding member prevents light incident on the reflecting surface of the concave mirror from being transmitted from the substrate to the back surface side. It is characterized by having a light shielding surface that reflects or scatters incident light.

更に、他の第３の発明は、上記第２の発明であって、前記光遮蔽部材は、外装カバーの前記凹面鏡に対し前記基体の裏面側に対向する部分の内面に設置して備えられることを特徴とする。 Further, another third invention is the second invention, wherein the light shielding member is provided by being installed on the inner surface of a portion of the exterior cover facing the back surface side of the substrate with respect to the concave mirror. It is characterized by.

更に、他の第４の発明は、上記第２の発明であって、前記光遮蔽部材は、前記凹面鏡の前記基体の裏面側に直接設置して備えられることを特徴とする。 Further, another fourth invention is the second invention, characterized in that the light shielding member is provided by being directly installed on the back surface side of the substrate of the concave mirror.

更に、他の第５の発明は、上記第２の発明であって、前記光遮蔽部材は、前記凹面鏡を固定する固定部材から延設された部分に設置して備えられることを特徴とする。 Further, another fifth invention is the second invention, characterized in that the light shielding member is installed and provided in a portion extending from a fixing member for fixing the concave mirror.

本発明によれば、凹面鏡の反射面への入射光が基体裏面側に透過するのを防止することができる。 According to the present invention, it is possible to prevent the incident light on the reflecting surface of the concave mirror from being transmitted to the back surface side of the substrate.

本発明を適用したプロジェクター装置の一実施形態の構成を示すもので、各部材の具体的配置と構成を示した斜視図である。It shows the structure of one Embodiment of the projector apparatus to which this invention was applied, and is the perspective view which showed the specific arrangement and structure of each member. 正常な状態での光線を示す縦断側面図である。It is a longitudinal side view which shows the light ray in a normal state. 異常な状態での光線を示す縦断側面図である。It is a longitudinal side view which shows the light ray in an abnormal state. 実施例１の縦断側面図である。It is a vertical sectional side view of Example 1. FIG. 光遮蔽部材の配置を示した斜視図である。It is a perspective view which showed the arrangement of the light shielding member. 実施例２の縦断側面図である。It is a vertical sectional side view of Example 2. FIG. 実施例３の縦断側面図である。It is a vertical sectional side view of Example 3. FIG.

以下、図を参照して本発明を実施するための形態を詳細に説明する。
（概要）
凹面鏡の裏面側に光遮蔽部材を配置して、凹面鏡の前面の反射コートが、例えば剥離して投射光が基体を透過しても、その裏面側の光遮蔽部材により投射光を反射または拡散することで、集光に近い状態の光線が光遮蔽部材以外に当たらないようにする。
なお、光遮蔽部材の設置部は、基体裏面、基体裏面側の空間、基体裏面側のカバー内面、カバー内面全体のいずれかである。 Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings.
(Overview)
Even if the light shielding member is arranged on the back surface side of the concave mirror and the reflective coating on the front surface of the concave mirror is peeled off and the projected light passes through the substrate, the light shielding member on the back surface side reflects or diffuses the projected light. This prevents light rays that are close to focusing from hitting anything other than the light shielding member.
The installation portion of the light shielding member is any one of the back surface of the substrate, the space on the back surface side of the substrate, the inner surface of the cover on the back surface side of the substrate, and the entire inner surface of the cover.

（具体的構成）
画像調整素子からの画像光を被投射面へ拡大投射して結像する結像光学系であり、画像調整素子側から順に、第一光学系、その第一光学素子からの出射光を反射する凹面鏡を有する第二光学系を備える投射光学系と、その投射光学系の一部を内包して第二光学系からの出射光を透過する開口部を有して、その開口部を透光材料にて封鎖された外装カバーと、を備えるプロジェクター装置において、
凹面鏡は、透光材料により成型された基体と、その基体表面のうちスクリーンと向かい合った表面の一部に反射面として形成された反射コートと、によって構成される。 (Specific configuration)
It is an imaging optical system that magnifies and projects the image light from the image adjusting element onto the projected surface to form an image, and reflects the first optical system and the emitted light from the first optical element in order from the image adjusting element side. It has a projection optical system including a second optical system having a concave mirror, and an opening that includes a part of the projection optical system and transmits light emitted from the second optical system, and the opening is made of a translucent material. In a projector device provided with an exterior cover that is sealed with
The concave mirror is composed of a substrate molded from a translucent material and a reflective coating formed as a reflective surface on a part of the surface of the substrate facing the screen.

そして、凹面鏡の基体裏面側に光遮蔽部材を配置する。
１）外装カバーの凹面鏡に対しその反射面の反対側に相当する基体裏面側の内面に光遮蔽部材を設置する。
２）凹面鏡の基体裏面側に光遮蔽部材を設置する。
３）凹面鏡の基体裏面側に設置され、鏡筒に対して位置を調整可能に固定する固定部材から凹面鏡の裏面を覆う延設部を形成し、その延設部の凹面鏡背面と向かい合う面に光遮蔽部材を設置する。 Then, a light shielding member is arranged on the back surface side of the substrate of the concave mirror.
1) A light shielding member is installed on the inner surface of the back surface side of the substrate corresponding to the opposite side of the reflective surface to the concave mirror of the exterior cover.
2) Install a light shielding member on the back surface side of the base of the concave mirror.
3) An extension portion that covers the back surface of the concave mirror is formed from a fixing member that is installed on the back surface side of the base of the concave mirror and fixed in an adjustable position with respect to the lens barrel, and light is emitted from the surface of the extension portion that faces the back surface of the concave mirror. Install a shielding member.

なお、光遮蔽部材の光遮蔽面は、光反射特性を有する金属平面や反射コート面でも良く、また、光拡散特性を有する白色塗装や微細凹凸面でも良い。
さらに、光遮蔽面の形状は、平面でも曲面でも構わないが、光を拡散させる形状が好ましい。 The light shielding surface of the light shielding member may be a metal flat surface or a reflective coated surface having a light reflecting characteristic, or may be a white coating or a fine uneven surface having a light diffusing characteristic.
Further, the shape of the light shielding surface may be a flat surface or a curved surface, but a shape that diffuses light is preferable.

（実施形態）
図１は本発明を適用した一実施形態の構成として各部材の具体的配置と構成を示したもので、１は結像光学系（投射光学系）、２は外装カバー、３は凹面鏡、４は固定部材である。 (Embodiment)
FIG. 1 shows a specific arrangement and configuration of each member as a configuration of an embodiment to which the present invention is applied, where 1 is an imaging optical system (projection optical system), 2 is an exterior cover, 3 is a concave mirror, and 4 Is a fixing member.

プロジェクター装置は、図示しない画像調整素子からの画像光を被投射面へ拡大投射して結像する結像光学系であり、投射光学系１と、その投射光学系１の一部を内包する外装カバー２と、を備える。 The projector device is an imaging optical system that magnifies and projects image light from an image adjusting element (not shown) onto a projected surface to form an image, and includes a projection optical system 1 and a part of the projection optical system 1. It includes a cover 2.

投射光学系１は、画像調整素子側から順に、図示のように、鏡筒による第一光学系１１、その鏡筒１１内の第一光学素子からの出射光を反射する凹面鏡３を有する第二光学系１２を備える。 As shown in the figure, the projection optical system 1 has a first optical system 11 by a lens barrel and a concave mirror 3 that reflects light emitted from the first optical element in the lens barrel 11 in order from the image adjusting element side. The optical system 12 is provided.

外装カバー２は、図２に示すように、第二光学系１２からの出射光を透過する開口部２１を有しており、その開口部２１は透光材料２２により封鎖されている。 As shown in FIG. 2, the exterior cover 2 has an opening 21 that transmits the light emitted from the second optical system 12, and the opening 21 is sealed by the translucent material 22.

そして、第二光学系１２の凹面鏡３は、透光材料により成型された基体と、その基体表面のうち図示しないスクリーンと向かい合った表面の一部に反射面３１として形成された反射コートと、によって構成される。 The concave mirror 3 of the second optical system 12 is formed by a substrate molded from a translucent material and a reflective coating formed as a reflective surface 31 on a part of the surface of the substrate facing the screen (not shown). It is composed.

さらに詳細には、凹面鏡３は、固定部材４の一端側に位置及び角度を微調整可能に固定されている。 More specifically, the concave mirror 3 is fixed to one end side of the fixing member 4 so that the position and angle can be finely adjusted.

また、固定部材４の他端側には、鏡筒１１との被係合部４１が形成されている。
この被係合部４１は、フランジ状で、鏡筒１１との位置決め用突起部４２とその左右のビス穴４３を有している。 Further, an engaged portion 41 with the lens barrel 11 is formed on the other end side of the fixing member 4.
The engaged portion 41 has a flange shape and has a positioning protrusion 42 with the lens barrel 11 and screw holes 43 on the left and right thereof.

また、鏡筒１１の一端側には、固定部材４との係合部１３が形成されている。
この係合部１３は、フランジ状で、固定部材４の位置決め穴１４とその左右の結合穴１５を有している。 Further, an engaging portion 13 with the fixing member 4 is formed on one end side of the lens barrel 11.
The engaging portion 13 has a flange shape and has a positioning hole 14 of the fixing member 4 and connecting holes 15 on the left and right thereof.

そして、固定部材４の被係合部４１と、鏡筒１１の係合部１３とが、位置決め穴１４に位置決め用突起部４２を挿入して、結合穴１５からビス穴４３にねじ込む不図示のビスを介して固定される。 Then, the engaged portion 41 of the fixing member 4 and the engaging portion 13 of the lens barrel 11 insert the positioning protrusion 42 into the positioning hole 14 and screw it into the screw hole 43 from the coupling hole 15 (not shown). It is fixed via screws.

また、外装カバー２は、二つの上カバー部材２Ａ及び下カバー部材２Ｂを合体して形成されている。
これら上カバー部材２Ａ及び下カバー部材２Ｂのそれぞれの他端部は、固定部材４の被係合部４１及び鏡筒１１の係合部１３よりも基端側において、鏡筒１１を挟み込む。
そして、上カバー部材２Ａ及び下カバー部材２Ｂを、互いの結合ボスでビスｖを介して固定することで、鏡筒１１の挟み込まれた基端部よりも先端側に位置する凹面鏡３及び固定部材４は外装カバー２に内包される。 Further, the exterior cover 2 is formed by combining two upper cover members 2A and a lower cover member 2B.
The other ends of the upper cover member 2A and the lower cover member 2B sandwich the lens barrel 11 on the base end side of the engaged portion 41 of the fixing member 4 and the engaging portion 13 of the lens barrel 11.
Then, by fixing the upper cover member 2A and the lower cover member 2B with the joint bosses via the screws v, the concave mirror 3 and the fixing member located on the tip end side of the sandwiched base end portion of the lens barrel 11 4 is included in the exterior cover 2.

そして、鏡筒１１を挟み込んだ状態で、上カバー部材２Ａ及び下カバー部材２Ｂ同士をビスｖにより固定して外装カバー２を形成後、その外装カバー２側から、外装カバー２と鏡筒１１とを不図示のビスを介して固定する。 Then, with the lens barrel 11 sandwiched, the upper cover member 2A and the lower cover member 2B are fixed to each other with screws v to form the exterior cover 2, and then the exterior cover 2 and the lens barrel 11 are displayed from the exterior cover 2 side. Is fixed via a screw (not shown).

図２は正常な状態での光線を示している。
図示のように、凹面鏡３の反射面３１に形成された反射コートが正常な状態では、第一光学系１１からの投射光を反射して外装カバー２（上カバー部材２Ａ）の開口部２１の透光材料２２へ導いている。 FIG. 2 shows a light beam in a normal state.
As shown in the figure, when the reflective coating formed on the reflective surface 31 of the concave mirror 3 is in a normal state, the projected light from the first optical system 11 is reflected and the opening 21 of the exterior cover 2 (upper cover member 2A) is formed. It leads to the translucent material 22.

図３は異常な状態での光線を示している。
図示のように、凹面鏡３の反射面３１に形成された反射コートが何らかの理由により剥離してしまい、透光材料からなる基体が露出している状態では、凹面鏡３の表面で第一光学系１１からの投射光を反射できず、投射光が基体を透過して凹面鏡３よりも裏面側へ投射光が照射される。 FIG. 3 shows a light beam in an abnormal state.
As shown in the figure, when the reflective coating formed on the reflective surface 31 of the concave mirror 3 is peeled off for some reason and the substrate made of the translucent material is exposed, the first optical system 11 is on the surface of the concave mirror 3. The projected light cannot be reflected, and the projected light passes through the substrate and is irradiated to the back surface side of the concave mirror 3.

（実施例１）
図４は実施例１を示している。 (Example 1)
FIG. 4 shows Example 1.

実施例１では、図３の状態の際に、外装カバー２に投射光が集中して当たることを抑制するために、図４に示すように、外装カバー２の凹面鏡３に対し裏面側に対向する部分２３の内面に、光遮蔽部材５を設置して、凹面鏡３の基体を透過した投射光を反射もしくは拡散している。
すなわち、光遮蔽部材５は、凹面鏡３の反射面３１への入射光が基体から裏面側に透過するのを防いで入射光を反射または散乱する光遮蔽面を有している。 In the first embodiment, as shown in FIG. 4, the outer cover 2 faces the concave mirror 3 on the back surface side in order to prevent the projected light from concentrating and hitting the outer cover 2 in the state of FIG. A light shielding member 5 is installed on the inner surface of the portion 23 to reflect or diffuse the projected light transmitted through the substrate of the concave mirror 3.
That is, the light shielding member 5 has a light shielding surface that reflects or scatters the incident light by preventing the incident light on the reflecting surface 31 of the concave mirror 3 from being transmitted from the substrate to the back surface side.

図５は実施例１の具体的構成を示したもので、図示のように、外装カバー２の一端側の内面の凹面鏡３の表面の反射面３１に対応する部分２３に光遮蔽部材５が設置されており、外装カバー２の他端側には第一光学系を内包した鏡筒１１の一端側が設置されている。 FIG. 5 shows a specific configuration of the first embodiment, and as shown in the drawing, the light shielding member 5 is installed on the portion 23 corresponding to the reflecting surface 31 on the surface of the concave mirror 3 on the inner surface on one end side of the exterior cover 2. On the other end side of the exterior cover 2, one end side of the lens barrel 11 including the first optical system is installed.

（実施例２）
図６は実施例２を示すもので、図示のように、凹面鏡３の反射面３１を形成した表面とは逆側の裏面に光遮蔽部材６を設置している。 (Example 2)
FIG. 6 shows the second embodiment, and as shown in the drawing, the light shielding member 6 is installed on the back surface opposite to the front surface on which the reflecting surface 31 of the concave mirror 3 is formed.

（実施例３）
図７は実施例３を示すもので、図示のように、凹面鏡３を鏡筒１１に固定している固定部材４において、凹面鏡３の裏面側に配置される固定部材４の一部に、少なくとも凹面鏡３の反射面３１に対応する裏面を覆うように突出した形状の延設部４４を設置し、その延設部４４の表面に光遮蔽部材７を設置している。 (Example 3)
FIG. 7 shows the third embodiment, and as shown in the drawing, in the fixing member 4 fixing the concave mirror 3 to the lens barrel 11, at least a part of the fixing member 4 arranged on the back surface side of the concave mirror 3 is attached. An extension 44 having a protruding shape is installed so as to cover the back surface corresponding to the reflection surface 31 of the concave mirror 3, and a light shielding member 7 is installed on the surface of the extension 44.

以上、実施形態のプロジェクター装置によれば、凹面鏡３の基体裏面側に光遮蔽部材５・６・７を配置して備えるため、凹面鏡３の反射面３１への入射光が基体裏面側に透過するのを防止することができる。 As described above, according to the projector device of the embodiment, since the light shielding members 5, 6 and 7 are arranged and provided on the back surface side of the substrate of the concave mirror 3, the incident light on the reflecting surface 31 of the concave mirror 3 is transmitted to the back surface side of the substrate. Can be prevented.

（変形例）
以上の実施形態の他、具体的な細部構造等についても適宜に変更可能であることは勿論である。 (Modification example)
Of course, in addition to the above embodiments, the specific detailed structure and the like can be changed as appropriate.

１ 結像光学系（投射光学系）
１１ 第一光学系
１２ 第二光学系
１３ 係合部
１４ 位置決め穴
１５ 結合穴
２ 外装カバー
２１ 開口部
２２ 透光部材
２３ 凹面鏡基体裏面側に対向する部分
２Ａ・２Ｂ カバー部材
３ 凹面鏡
３１ 反射面
４ 固定部材
４１ 被係合部
４２ 位置決め用突起部
４３ ビス穴
４４ 延設部
５ 光遮蔽部材
６ 光遮蔽部材
７ 光遮蔽部材 1 Imaging optical system (projection optical system)
11 1st optical system 12 2nd optical system 13 Engaging part 14 Positioning hole 15 Coupling hole 2 Exterior cover 21 Opening 22 Translucent member 23 Concave mirror Base part facing the back side 2 A / 2B Cover member 3 Concave mirror 31 Reflective surface 4 Fixing member 41 Engagement part 42 Positioning protrusion 43 Screw hole 44 Extension part 5 Light shielding member 6 Light shielding member 7 Light shielding member

Claims (4)

画像調整素子側からの画像光が入射される第一光学系と、
透光材料により形成された基体の前面に反射コートによる反射面が形成され、前記第一光学系からの出射光を被投射面に向けて反射する凹面鏡と、
前記第一光学系の一部および前記凹面鏡を内包する外装カバーと、
を有し、
前記第一光学系からの投射光は、前記凹面鏡の前記反射面付近で集光し、
前記凹面鏡の前記基体と前記外装カバーとの間に、光を反射または散乱する光遮蔽面を有する光遮蔽部材を備え、
前記光遮蔽部材により、前記基体を透過した光線が前記光遮蔽部材以外に当たらない、
ことを特徴とするプロジェクター装置。 The first optical system in which the image light from the image adjustment element side is incident, and
A concave mirror in which a reflective surface formed by a reflective coat is formed on the front surface of a substrate formed of a translucent material and the light emitted from the first optical system is reflected toward the projected surface.
An exterior cover containing a part of the first optical system and the concave mirror,
Have,
The projected light from the first optical system is collected in the vicinity of the reflecting surface of the concave mirror.
A light shielding member having a light shielding surface that reflects or scatters light is provided between the substrate of the concave mirror and the exterior cover.
Due to the light shielding member, the light rays transmitted through the substrate do not hit other than the light shielding member.
A projector device characterized by this. 請求項１に記載のプロジェクター装置において、
前記凹面鏡を一端側に位置及び角度を微調整可能に固定する固定部材を有し、
前記固定部材は、前記凹面鏡の前記前面の反対側の面である裏面側に配置され、少なくとも前記凹面鏡の前記反射面に対応する裏面を覆うように突出した形状の延設部が設置され、
前記光遮蔽部材は、前記延設部に設置される、
ことを特徴とするプロジェクター装置。 In the projector device according to claim 1,
A fixing member for fixing the concave mirror to one end side so that the position and angle can be finely adjusted is provided.
The fixing member is arranged on the back surface side, which is the surface opposite to the front surface of the concave mirror, and an extension portion having a protruding shape is installed so as to cover at least the back surface corresponding to the reflection surface of the concave mirror.
The light shielding member is installed in the extension portion.
A projector device characterized by this. 請求項１または２に記載のプロジェクター装置において、
前記外装カバーは、開口部を有し、
前記開口部は、透光材料にて封鎖される、
ことを特徴とするプロジェクター装置。 In the projector device according to claim 1 or 2.
The exterior cover has an opening and
The opening is sealed with a translucent material.
A projector device characterized by this. 請求項１または２に記載のプロジェクター装置において、
前記光遮蔽部材は、前記外装カバーの内面全体に備えられる、
ことを特徴とするプロジェクター装置。 In the projector device according to claim 1 or 2.
The light shielding member is provided on the entire inner surface of the exterior cover.
A projector device characterized by this.
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