JPH0723762Y2 - Projection TV reflective material - Google Patents
Projection TV reflective materialInfo
- Publication number
- JPH0723762Y2 JPH0723762Y2 JP15848988U JP15848988U JPH0723762Y2 JP H0723762 Y2 JPH0723762 Y2 JP H0723762Y2 JP 15848988 U JP15848988 U JP 15848988U JP 15848988 U JP15848988 U JP 15848988U JP H0723762 Y2 JPH0723762 Y2 JP H0723762Y2
- Authority
- JP
- Japan
- Prior art keywords
- film mirror
- cabinet
- fixed
- projection
- core member
- 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.)
- Expired - Lifetime
Links
Landscapes
- Optical Elements Other Than Lenses (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
【考案の詳細な説明】 〔考案の技術分野〕 本考案は、投写管の映像光を反射部材で反射してスクリ
ーンに投写するようにしたプロジェクションテレビに係
わり、その反射部材に関する。Description: TECHNICAL FIELD The present invention relates to a projection television that reflects image light from a projection tube by a reflecting member and projects the image light onto a screen, and relates to the reflecting member.
従来、プロジェクションテレビとして、キャビネット内
の光学系に反射部材を用い、投写管からスクリーンまで
の光路をまげることによりキャビネットの奥行きなどを
小さくするようにしたものがある。2. Description of the Related Art Conventionally, there is a projection television in which a reflection member is used for an optical system in the cabinet and the optical path from the projection tube to the screen is bent to reduce the depth of the cabinet.
第７図は、この種のプロジェクションテレビの一例を示
す図であり、CRT投写管10で映し出された映像の映像光
は、投影レンズ20で集光されて反射部材30を介してスク
リーン40の裏面に投射される。これによって、スクリー
ン40の表側から拡大された映像を見ることができる。FIG. 7 is a diagram showing an example of this type of projection television, in which the image light of the image projected by the CRT projection tube 10 is condensed by the projection lens 20 and passed through the reflection member 30 to the rear surface of the screen 40. Projected on. This allows the enlarged image to be viewed from the front side of the screen 40.
第６図は上記反射部材30を示す図であり、図のように反
射部材30は、金属等のアングルを矩形に組んだフレーム
30aにフィルムミラー30bが張られ、このフィルムミラー
30bで反射面が構成されている。そして、キャビネット5
0内に取り付けるときには、キャビネット50の予め設定
された位置に形成されたキャビネット枠50aに上記フレ
ーム30aを固定するうにしている。FIG. 6 is a view showing the above-mentioned reflecting member 30, and as shown in the drawing, the reflecting member 30 is a frame in which angles such as metal are assembled in a rectangular shape.
A film mirror 30b is stretched over 30a.
The reflecting surface is composed of 30b. And cabinet 5
When mounted in 0, the frame 30a is fixed to a cabinet frame 50a formed at a preset position of the cabinet 50.
しかしながら上記反射部材30は、フィルムミラー30bの
周囲をフレーム30aに接着等によって固着するようにし
ているため、フレーム30aの組み立て精度によっては、
フィルムミラー30bの四隅にしわが生じたり、フィルム
ミラー30bに平面性を持たせることが困難な場合があ
る。However, since the reflecting member 30 is configured such that the periphery of the film mirror 30b is fixed to the frame 30a by adhesion or the like, depending on the assembly accuracy of the frame 30a,
Wrinkles may occur at the four corners of the film mirror 30b, or it may be difficult to provide the film mirror 30b with flatness.
さらに、フィルムミラー30bは剛性のあるフレーム30aに
周囲を固着して張られているため破れやすく、運搬など
の取り扱い時に注意を要するという問題がある。また、
キャビネット50に取り付けるときには、フレーム30aに
フィルムミラー30bを張った状態にしておかなければな
らないため、輸送などを行うときに全体がかさばるとい
う問題がある。Further, since the film mirror 30b is stretched around the rigid frame 30a with its periphery fixed, the film mirror 30b easily breaks, and there is a problem that caution is required during handling such as transportation. Also,
When the film mirror 30b is attached to the cabinet 50, the film mirror 30b must be stretched on the frame 30a, which causes a problem that the entire structure is bulky during transportation.
本考案は上記の問題点を解消するためになされたもの
で、高い面精度を持たせた状態でキャビネットへ簡単に
取り付けることができ、取り扱いが簡単で輸送時などに
もかさばらないような反射部材を提供することを目的と
する。The present invention has been made to solve the above-mentioned problems, and it is a reflective member that can be easily attached to a cabinet with high surface accuracy, is easy to handle, and is not bulky during transportation. The purpose is to provide.
本考案によるプロジェクションテレビの反射部材は、棒
状の２本の芯部材に矩形のフィルムミラーの対向する２
辺をそれぞれ取り付け、一方の芯部材の両端を固定する
とともに、他方の芯部材をバネなどの弾性部材で引っ張
ってフィルムミラーを張るようにした。The projection member of the projection television according to the present invention comprises two rod-shaped core members which are opposed to each other by a rectangular film mirror.
Each side was attached, both ends of one core member were fixed, and the other core member was pulled by an elastic member such as a spring to stretch the film mirror.
第３図は本考案実施例の反射部材を用いたプロジェクシ
ョンテレビの縦断面を示す図であり、CRT投写管１で映
し出された映像の映像光は、投影レンズ２で集光されて
反射部材３を介してスクリーン４の裏面に投射される。
なお、反射部材３は、後述説明するようにキャビネット
５の裏側裏面で前方に傾斜して形成された固定板5aの位
置に取り付けられている。FIG. 3 is a view showing a vertical section of a projection television using the reflecting member of the embodiment of the present invention. The image light of the image projected by the CRT projection tube 1 is condensed by the projection lens 2 and is reflected by the reflecting member 3. It is projected on the back surface of the screen 4 via.
The reflecting member 3 is attached to a position of a fixed plate 5a that is formed by being inclined forward on the back surface of the cabinet 5 as described later.
第１図は本考案実施例の反射部材を示す一部破断斜視図
であり、キャビネット５の上記固定板5aから取り外され
た状態を示している。FIG. 1 is a partially cutaway perspective view showing a reflecting member according to an embodiment of the present invention, showing a state in which the reflecting member is detached from the fixing plate 5a of the cabinet 5.
図において、31は樹脂性あるいは金属性等の真直な丸棒
状の固定側芯部材、32は固定側芯部材31と同様に真直な
丸棒状の可動側芯部材、33はポリエステルフィルム等を
ベースにしたフィルムミラーで、このフィルムミラー33
の両端は第４図に示したように固定側芯部材31と可動側
芯部材32にそれぞれ巻き付けて固着されている。In the figure, 31 is a straight round bar-shaped fixed side core member made of resin or metal, 32 is a straight round bar-shaped movable side core member similar to the fixed side core member 31, and 33 is a polyester film or the like as a base. This film mirror 33
As shown in FIG. 4, both ends of are wound around and fixed to the fixed-side core member 31 and the movable-side core member 32, respectively.
固定側芯部材31の両端面にはネジ穴31a1,31a2が形成さ
れ、また、可動側芯部材32の両端面にはフィルムミラー
33を巻いた部分より径の細い円柱状の突起部32a1,32a2
がそれぞれ形成されている。上記突起部32a1,32a2の外
周には溝31b1,32b2が形成され、この溝32b1,32b2にはス
プリング61,62がそれぞれ一端を掛止して取り付けられ
ている。Screw holes 31a 1 and 31a 2 are formed on both end surfaces of the fixed side core member 31, and a film mirror is formed on both end surfaces of the movable side core member 32.
Cylindrical protrusions 32a 1 and 32a 2 with a smaller diameter than the part where 33 is wound
Are formed respectively. Grooves 31b 1 and 32b 2 are formed on the outer peripheries of the protrusions 32a 1 and 32a 2 , and springs 6 1 and 6 2 are attached to the grooves 32b 1 and 32b 2 with their one ends hooked.
71,72は前記キャビネット５の固定板5aの予め設定され
た位置に取付けられた一対の芯ホルダーで、その側面に
は貫通するネジ穴7a1,7a2が形成されている。Reference numerals 7 1 and 7 2 denote a pair of core holders attached to preset positions of the fixing plate 5a of the cabinet 5, and threaded holes 7a 1 and 7a 2 penetrating through the side surfaces thereof are formed.
81,82は芯ホルダー71,72と同様に上記固定板5aの予め設
定された位置に形成された一対の芯ガイドで、この芯ガ
イド81,82は、前記可動側芯部材２の径より僅かに大き
な間隔を有する『コ』字状の嵌合部8a1,8a2を有してい
る。Similar to the lead holders 7 1 and 7 2 , 8 1 and 8 2 are a pair of lead guides formed at preset positions of the fixed plate 5a, and the lead guides 8 1 and 8 2 are the movable side cores. It has "U" -shaped fitting portions 8a 1 and 8a 2 having a space slightly larger than the diameter of the member 2.
上記反射部材３をキャビネット５に取付けるときは次の
ように行う。The reflection member 3 is attached to the cabinet 5 as follows.
先ず、固定側芯部材31のネジ穴31a1,31a2を芯ホルダー7
1,72の各ネジ穴7a1,7a2に合わせ、第５図に示したよう
に固定側芯部材31にフィルムミラー33の端が一部巻かれ
た状態にし、この状態でネジ止めして固定側芯部材31を
芯ホルダー71,72に固定する。First, the screw holes 31a 1 and 31a 2 of the fixed-side core member 31 are attached to the core holder 7
1, 7 each screw hole 7a 1 of 2, 7a 2 to fit, in a state where the end of the fifth film mirror 33 on the fixed side core member 31 as shown in FIG. Is wound partially, Shi set screw in this state To fix the fixed side core member 31 to the core holders 7 1 and 7 2 .
次に、可動側芯部材32の両端を芯ガイド81,82の嵌合部8
a1,8a2にそれぞれ嵌合させ、各突起部8b1,8b2に取り付
けられているスプリング61,62の自由端を固定板5aに形
成されたフック5b1,5b2にそれぞれ掛ける。Next, both ends of the movable side core member 32 are connected to the fitting portions 8 of the core guides 8 1 and 8 2.
a 1 and 8a 2 respectively, and the free ends of the springs 6 1 and 6 2 attached to the protrusions 8b 1 and 8b 2 are hooked on the hooks 5b 1 and 5b 2 formed on the fixed plate 5a. .
これによって、第２図に示した状態になり、フィルムミ
ラー33はスプリング61,62の付勢力によって平面に張ら
れ、このフィルムミラー33の面で反射が行われる。This makes the state shown in FIG. 2, the film mirror 33 is stretched in the plane by the urging force of the spring 6 and 62, reflection is performed in terms of the film mirror 33.
このとき、フィルムミラー33の一端は固定側芯部材31の
側面の一線（円柱の母線）によって直線性が保たれ、ま
た、他端はスプリング61,62の各弾性力により可動側芯
部材32の左右両端が嵌合部8a1,8a2に沿って下方に付勢
されているため、フィルムミラー３の平面性が得られ
る。At this time, one end of the film mirror 33 is kept linear by a line of the side surface of the fixed side core member 31 (cylindrical generatrix), and the other end is moved by the elastic force of the springs 6 1 and 6 2. Since the left and right ends of 32 are urged downward along the fitting portions 8a 1 and 8a 2 , the flatness of the film mirror 3 can be obtained.
なお、芯ホルダー７および芯ガイド８は、光学系の位置
関係を考慮して予め設定された形状にされるとともに、
固定板5aの所定に位置に取り付けられている。The core holder 7 and the core guide 8 are formed in a preset shape in consideration of the positional relationship of the optical system, and
The fixed plate 5a is attached at a predetermined position.
フィルムミラー33は固定側芯部材31あるいは可動側芯部
材32に巻き付けるようにできるため、輸送時などにコン
パクトになるばかりか、フィルムミラー33には張力が生
じていないため従来のように簡単に破損されるようなこ
とがない。Since the film mirror 33 can be wound around the fixed-side core member 31 or the movable-side core member 32, the film mirror 33 is not only compact during transportation but also easily damaged as in the past because no tension is generated in the film mirror 33. There is nothing to be done.
上記の実施例では、固定側芯部材31を芯ホルダー７に取
り付けるときに、固定側芯部材31がフィルムミラー33の
端を一部巻き付けた状態で固定するものについて説明し
たが、固定側芯部材31を予め芯ホルダー７に緩くネジ止
めし、可動側芯部材32を芯ガイド８の嵌合部8aに嵌合さ
せた状態で下方に付勢した後で固定側芯部材31を硬くネ
ジ止めするようにしたものであってもよい。なお、この
場合は平面に張られたフィルムミラーは固定側芯部材31
および可動側芯部材32の中心軸を通るようになるため、
芯ホルダー７および芯ガイド８は、光学系の位置関係を
考慮してこの取付方法に見合ったように形成する必要が
あることはいうまでもない。In the above embodiment, when the fixed-side core member 31 is attached to the core holder 7, the fixed-side core member 31 fixes the end of the film mirror 33 in a partially wound state, but the fixed-side core member is described. 31 is loosely screwed to the lead holder 7 in advance, the movable side core member 32 is biased downward in a state of being fitted to the fitting portion 8a of the lead guide 8, and then the fixed side core member 31 is firmly screwed. It may be the one that has been done. In this case, the film mirror stretched on the plane is the fixed core member 31.
And since it comes to pass through the central axis of the movable side core member 32,
Needless to say, the lead holder 7 and the lead guide 8 need to be formed in consideration of the positional relationship of the optical system so as to correspond to this mounting method.
以上説明したように本考案の反射部材によれば、棒状の
２本の芯部材に矩形のフィルムミラーの対向する２辺を
それぞれ取り付け、一方の芯部材の両端を固定するとと
もに、他方の芯部材をバネなどの弾性部材で引っ張って
フィルムミラーを張るようにしたので、高い面精度を持
たせた状態でキャビネットへ簡単に取付けることがで
き、取り扱いが簡単で輸送時などにもかさばらないよう
にすることができる。As described above, according to the reflecting member of the present invention, two rod-shaped core members are attached with two opposite sides of a rectangular film mirror, respectively, and both ends of one core member are fixed and the other core member is fixed. Since the film mirror is stretched by pulling the film with an elastic member such as a spring, it can be easily attached to the cabinet with high surface accuracy, easy to handle and not bulky during transportation etc. be able to.
第１図は本考案実施例の反射部材を示す一部破断斜視
図、 第２図は実施例の反射部材をプロジェクションテレビの
キャビネットに取り付けた状態を示す斜視図、 第３図は実施例の反射部材を用いたプロジェクションテ
レビの縦断面を示す図、 第４図は実施例におけるフィルムミラーの固定状態を示
す図、 第５図は実施例における反射部材の取り付け方を説明す
る図、 第６図は従来の反射部材の一例を示す斜視図、 第７図は本考案に係わるプロジェクションテレビの縦断
面を示す図である。 １……投写管、２……投影レンズ、３……反射部材、４
……スクリーン、５……キャビネット、６……スプリン
グ、７……芯ホルダー、８……芯ガイド、31……固定側
芯部材、32……可動側芯部材、33……フィルムミラー。FIG. 1 is a partially cutaway perspective view showing a reflection member of an embodiment of the present invention, FIG. 2 is a perspective view showing a state where the reflection member of the embodiment is attached to a cabinet of a projection television, and FIG. 3 is a reflection of the embodiment. FIG. 4 is a view showing a vertical section of a projection television using a member, FIG. 4 is a view showing a fixed state of a film mirror in the embodiment, FIG. 5 is a view for explaining how to attach a reflecting member in the embodiment, and FIG. FIG. 7 is a perspective view showing an example of a conventional reflection member, and FIG. 7 is a vertical sectional view of a projection television according to the present invention. 1 ... Projection tube, 2 ... Projection lens, 3 ... Reflecting member, 4
...... Screen, 5 ... Cabinet, 6 ... Spring, 7 ... Core holder, 8 ... Core guide, 31 ... Fixed core member, 32 ... Movable core member, 33 ... Film mirror.
Claims (1)
映像をレンズによってスクリーンに結像するときの光路
内で、映像光を反射する反射部材であって、 棒状の２本の芯部材に矩形のフィルムミラーの対向する
２辺をそれぞれ取り付け、該２本の芯部材のうち、いず
れか一方の芯部材の両端を、プロジェクションテレビの
キャビネットに形成されたホルダーで支持するととも
に、他方の芯部材の両端を、上記ホルダーを含む平面内
で上記キャビネットに形成されたガイド部材に嵌合し、
該ガイド部材に嵌合された芯部材の両端を弾性部材によ
って上記ホルダーと反対側に付勢し、上記２本の芯部材
によってフィルムミラーを張り、該フィルムミラーで前
記光路内の映像光を反射するようにしたことを特徴とす
るプロジェクションテレビの反射部材。1. A reflection member for reflecting image light in an optical path when an image of a projection tube in a projection television is formed on a screen by a lens, wherein two rod-shaped core members are rectangular film mirrors. Two opposite sides are attached, and both ends of one of the two core members are supported by a holder formed in a cabinet of a projection television, and both ends of the other core member are Fits the guide member formed in the cabinet in the plane including the holder,
Both ends of the core member fitted to the guide member are urged to the opposite side of the holder by elastic members, a film mirror is stretched by the two core members, and the image light in the optical path is reflected by the film mirror. A reflection member for a projection television characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15848988U JPH0723762Y2 (en) | 1988-12-07 | 1988-12-07 | Projection TV reflective material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15848988U JPH0723762Y2 (en) | 1988-12-07 | 1988-12-07 | Projection TV reflective material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0278902U JPH0278902U (en) | 1990-06-18 |
| JPH0723762Y2 true JPH0723762Y2 (en) | 1995-05-31 |
Family
ID=31438865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15848988U Expired - Lifetime JPH0723762Y2 (en) | 1988-12-07 | 1988-12-07 | Projection TV reflective material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0723762Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09311207A (en) * | 1996-05-17 | 1997-12-02 | Matsushita Electric Ind Co Ltd | Mirror, film, and television image receiver |
| KR20190107798A (en) | 2018-03-13 | 2019-09-23 | 안병로 | Multifunctional swaddling structure for easy feeding and transportation |
-
1988
- 1988-12-07 JP JP15848988U patent/JPH0723762Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0278902U (en) | 1990-06-18 |
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