JPH0990103A - Formation of light shielding film - Google Patents

Formation of light shielding film

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Publication number
JPH0990103A
JPH0990103A JP7266493A JP26649395A JPH0990103A JP H0990103 A JPH0990103 A JP H0990103A JP 7266493 A JP7266493 A JP 7266493A JP 26649395 A JP26649395 A JP 26649395A JP H0990103 A JPH0990103 A JP H0990103A
Authority
JP
Japan
Prior art keywords
light
shielding film
linear fresnel
top surface
light shielding
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.)
Pending
Application number
JP7266493A
Other languages
Japanese (ja)
Inventor
Hideki Tomari
秀樹 泊
Ichihiro Katou
以千弘 加藤
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.)
Denso Corp
Original Assignee
Denso Corp
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 Denso Corp filed Critical Denso Corp
Priority to JP7266493A priority Critical patent/JPH0990103A/en
Publication of JPH0990103A publication Critical patent/JPH0990103A/en
Pending legal-status Critical Current

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  • Optical Elements Other Than Lenses (AREA)
  • Surface Treatment Of Optical Elements (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve productivity by simultaneously forming the uniform light shielding films on the different two surfaces inclusive of peak surfaces of a linear Fresnel lens having the horizontal peak surfaces of projecting parts and facilitating the check of forming state of light shielding films. SOLUTION: A colored photosensitive material is applied over the entire surface of the linear Fresnel plate 1 which has the many projecting parts 11 of the same shape on its front surface and is formed with the horizontal peak surfaces (a) by chamfering the front ends of these projecting parts 11. The colored photosensitive agent on the two surfaces (a), (b) is photoset by irradiating the two surfaces with parallel beams L from 45 deg.C angle in such a manner that the angles formed by the light for irradiation and the respective planes of the two surfaces (a), (b) are equaled, via a mask 4 formed with light opaque parts 41 meeting the shapes of the projecting parts 11 in a manner that the two surfaces (a), (b) varying in the angle inclusive of the peak surfaces (a) are irradiated with the light. Further, the colored photosensitive agent on the surfaces exclusive of the two surfaces (a), (b) is removed by washing, by which the light shielding films 2 are formed on the two surfaces (a), (b).

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、リニアフレネル板
に部分的な着色部を形成して、遮光膜を形成する方法に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for forming a light-shielding film by forming a partial colored portion on a linear Fresnel plate.

【０００２】[0002]

【従来の技術】自動車の計器やテレビ画面等の表面の反
射光を防ぐために、リニアフレネル板に部分的な着色を
施してなる無反射板が用いられている。図４（ａ）、
（ｂ）はその一般的形状を示すもので、リニアフレネル
板１は、表面に同一方向に延びる多数の凸状部１１を有
している。上記凸状部１１は同一形状でそれぞれ傾斜面
ａと垂直面ｂを有しており、その垂直面ｂに着色膜を形
成して、傾斜面ａの反射光を吸収する遮光膜２となして
いる。2. Description of the Related Art In order to prevent reflected light from the surface of automobile instruments, television screens, etc., a non-reflective plate formed by partially coloring a linear Fresnel plate is used. FIG. 4 (a),
(B) shows its general shape, and the linear Fresnel plate 1 has a large number of convex portions 11 extending in the same direction on the surface. The convex portions 11 have the same shape and each have an inclined surface a and a vertical surface b, and a colored film is formed on the vertical surface b to form a light shielding film 2 that absorbs the reflected light of the inclined surface a. There is.

【０００３】この遮光膜の形成方法として、例えば特公
平４−６３３６１号公報には、フレネル体の全面に感光
剤を塗布した後、表面の凹凸形状を利用して、遮光膜を
形成する部分と形成しない部分とが照射光に対して陰陽
となるような方向から光を照射し、光の当たった部分の
感光剤を硬化させて遮光膜を形成する方法が開示されて
いる。光の当たらない部分の感光剤は洗浄により除去さ
れる。As a method of forming this light-shielding film, for example, in Japanese Patent Publication No. 4-63361, after a photosensitizer is applied to the entire surface of a Fresnel body, a portion for forming a light-shielding film is formed by utilizing the uneven shape of the surface. There is disclosed a method of forming a light-shielding film by irradiating light from a direction in which a portion to be formed does not become positive and negative with respect to irradiation light and curing the photosensitive agent in the exposed portion. The photosensitizer in the areas not exposed to light is removed by washing.

【０００４】[0004]

【発明が解決しようとする課題】ところで、図５に示す
ように、凸状部１１の先端を面取りして水平な頂面ｃを
形成したリニアフレネル板１があり、凸状部１１の先端
の欠けや傷付きを少なくできる利点を有する。このリニ
アフレネル板１を用いて無反射板を作製する場合には、
上記垂直面ｂに加えて上記頂面ｃにも遮光膜２を形成す
ることになる。By the way, as shown in FIG. 5, there is a linear Fresnel plate 1 in which the tip of the convex portion 11 is chamfered to form a horizontal top surface c. It has the advantage that chipping and scratches can be reduced. When a non-reflecting plate is manufactured using this linear Fresnel plate 1,
In addition to the vertical surface b, the light shielding film 2 is formed on the top surface c.

【０００５】しかしながら、上記従来の方法を適用し
て、図５のリニアフレネル板１に遮光膜２を形成する
際、遮光膜２が不要な傾斜面ａに照射光Ｌが当たらない
ようにするためには、照射角度αを傾斜面ａの傾斜角度
と同等にする必要がある。例えば、傾斜面ａの傾斜角度
が３０°の場合には、傾斜面ａに合わせて約３０°の角
度から光照射することになり、光の照射エネルギーをＥ
ｏとすると垂直面ｂの受ける照射エネルギー（Ｅｂ）と
頂面ｃが受ける照射エネルギー（Ｅｃ）はそれぞれ下記
式（１）（２）のようになる。 Ｅｂ＝Ｅｏ×ｃｏｓ３０°＝０．８６６Ｅｏ・・・（１） Ｅｃ＝Ｅｏ×ｓｉｎ３０°＝０．５Ｅｏ・・・（２）However, when the above-mentioned conventional method is applied to form the light-shielding film 2 on the linear Fresnel plate 1 of FIG. 5, in order to prevent the irradiation light L from hitting the inclined surface a where the light-shielding film 2 is unnecessary. Therefore, the irradiation angle α needs to be equal to the inclination angle of the inclined surface a. For example, when the inclination angle of the inclined surface a is 30 °, light is emitted from an angle of about 30 ° in accordance with the inclined surface a, and the irradiation energy of light is E.
When o is set, the irradiation energy (Eb) received by the vertical surface b and the irradiation energy (Ec) received by the top surface c are represented by the following equations (1) and (2), respectively. Eb = Eo × cos 30 ° = 0.866 Eo (1) Ec = Eo × sin 30 ° = 0.5 Eo (2)

【０００６】このように、垂直面ｂの受ける照射エネル
ギーと頂面ｃの受ける照射エネルギーが異なり、このた
め、均一な遮光膜を得ることが困難であった。また、洗
浄終了後の凸状部１１における遮光膜の塗り分け状態を
チェックするためには、拡大鏡等により凸状部１１を直
接観察する必要があって生産性が低いという不具合があ
った。As described above, the irradiation energy received by the vertical surface b is different from the irradiation energy received by the top surface c, and thus it is difficult to obtain a uniform light-shielding film. Further, in order to check the coating state of the light-shielding film on the convex portion 11 after the cleaning is completed, it is necessary to directly observe the convex portion 11 with a magnifying glass or the like, which causes a problem of low productivity.

【０００７】しかして、本発明の目的は、凸状部が水平
な頂面を有するリニアフレネルレンズの、上記頂面を含
む異なる２面に、均一な遮光膜を同時に形成すること、
また、遮光膜の形成状態のチェックを容易にして、生産
性を向上させることにある。Therefore, an object of the present invention is to simultaneously form a uniform light-shielding film on two different surfaces including the top surface of a linear Fresnel lens having a convex top surface with a horizontal top surface,
Another object is to make it easier to check the formation state of the light-shielding film and improve the productivity.

【０００８】[0008]

【課題を解決するための手段】かかる課題を解決するた
めの本発明の方法を図１を参照して説明すると、表面に
同一形状の多数の凸状部１１を有し、上記凸状部１１の
先端を面取りして水平な頂面ｃを形成したリニアフレネ
ル板１の、上記頂面ａを含む角度の異なる二面ｂ、ｃに
遮光膜２を形成する方法であって、上記リニアフレネル
板１の全面に着色感光剤を塗布する工程と、上記二面
ｂ、ｃにのみ光が照射されるように上記凸状部１１形状
に応じた光不透過部４１を形成したマスク４を介して、
かつ照射光と上記二面ｂ、ｃのそれぞれの面とのなす角
度が同等となるように平行光Ｌを照射して、上記二面
ｂ、ｃ上の着色感光剤を光硬化させる工程と、光が照射
されなかった部分の着色感光剤を洗浄除去する工程とか
らなる（請求項１）。A method of the present invention for solving the above problem will be described with reference to FIG. 1. A plurality of convex portions 11 having the same shape are formed on the surface, and the convex portion 11 is provided. Is a method for forming the light-shielding film 2 on two surfaces b and c having different angles including the top surface a of the linear Fresnel plate 1 having the horizontal top surface c formed by chamfering the tip of the linear fresnel plate. 1 through the step of applying a colored photosensitizer to the entire surface of 1 and the mask 4 in which the light opaque portion 41 corresponding to the shape of the convex portion 11 is formed so that light is irradiated only on the two surfaces b and c. ,
And a step of irradiating the parallel light L such that the angle between the irradiation light and each of the two surfaces b and c is equal, and photocuring the colored photosensitive agent on the two surfaces b and c. And a step of washing and removing the colored photosensitizer in a portion not irradiated with light (claim 1).

【０００９】この時、上記リニアフレネル板１の外周部
の少なくとも一部に上記凸状部１１を形成しない平面部
１２を設けて、該平面部１２に着色感光剤を塗布し、上
記二面ｂ、ｃと同時に光照射して上記平面部１２上の着
色感光剤を光硬化させるよういしてもよく、形成される
感光膜５を上記遮光膜２の品質のチェックに用いること
ができる（請求項２）。At this time, a flat surface portion 12 on which the convex portion 11 is not formed is provided on at least a part of the outer peripheral portion of the linear Fresnel plate 1, and a colored photosensitive agent is applied to the flat surface portion 12, and the two surfaces b , C may be simultaneously irradiated with light to photo-cure the colored photosensitive agent on the flat surface portion 12, and the formed photosensitive film 5 can be used for checking the quality of the light-shielding film 2 (Claims). 2).

【００１０】[0010]

【発明の実施の形態】図１（ａ）は本発明方法を用いて
形成される無反射板の全体斜視図、図１（ｂ）はその部
分拡大断面図であり、リニアフレネル板たる平板状のリ
ニアフレネルレンズ１には、外周部を除く表面に、同一
方向に延びる多数の凸状部１１が形成されている。これ
ら凸状部１１はいずれも同一形状で傾斜面ａと垂直面
ｂ、および水平に面取りされた頂面ｃを有している。上
記凸状部１１の垂直面ｂと頂面ｃには黒色の着色膜が形
成されて遮光膜２となしてある。1 (a) is an overall perspective view of a non-reflecting plate formed by using the method of the present invention, and FIG. 1 (b) is a partially enlarged cross-sectional view thereof showing a flat Fresnel plate. The linear Fresnel lens 1 is formed with a large number of convex portions 11 extending in the same direction on the surface except the outer peripheral portion. Each of these convex portions 11 has the same shape and has an inclined surface a, a vertical surface b, and a horizontally chamfered top surface c. A black colored film is formed on the vertical surface b and the top surface c of the convex portion 11 to form the light shielding film 2.

【００１１】また、上記リニアフレネルレンズ１の外周
部は未加工のままとしてあり、遮光膜２の形成状態をチ
ェックするための平面部１２となしてある。なお、この
平面部１２は必ずしも外周部全周に設ける必要はなく、
少なくとも一部に形成すればよい。The outer peripheral portion of the linear Fresnel lens 1 is left unprocessed and serves as a flat portion 12 for checking the formation state of the light shielding film 2. The flat surface portion 12 does not necessarily have to be provided all around the outer peripheral portion,
It may be formed in at least a part.

【００１２】次に、図２の工程図を参照しながらリニア
フレネルレンズ１の凸状部１１に上記遮光膜２を形成す
る方法について説明する。図２（１）は未処理のリニア
フレネル板１であり、まず、このリニアフレネル板１表
面の全面に、光硬化性の着色感光剤３を均一に塗布する
（図２（２））。Next, a method of forming the light shielding film 2 on the convex portion 11 of the linear Fresnel lens 1 will be described with reference to the process chart of FIG. 2 (1) shows an untreated linear Fresnel plate 1. First, a photocurable colored photosensitive agent 3 is uniformly applied to the entire surface of the linear Fresnel plate 1 (FIG. 2 (2)).

【００１３】次いで図２（３）において、上記リニアフ
レネルレンズ１にマスク４を介して、後述する特定の方
向から平行光Ｌを照射し、上記着色感光剤３を部分硬化
させる。上記マスク４には、上記凸状部１１形状に応じ
たパターンの光不透過部４１が形成してあり、上記凸状
部１１の垂直面ｂと頂面ｃに光が照射され、傾斜面ａに
は光が照射されないようになしてある。Next, in FIG. 2C, the linear Fresnel lens 1 is irradiated with parallel light L from a specific direction described later through the mask 4 to partially cure the colored photosensitizer 3. The mask 4 is formed with a light non-transmissive portion 41 having a pattern corresponding to the shape of the convex portion 11. The vertical surface b and the top surface c of the convex portion 11 are irradiated with light, and the inclined surface a. It is designed so that it is not exposed to light.

【００１４】平行光Ｌの照射角度αは、平行光Ｌと、垂
直面ｂおよび頂面ｃのそれぞれの面とのなす角度が一致
するように選定される。ここでは照射角度αを４５°と
すればよいがこれから若干ずれてもよく、通常、４５°
±５°とする。この時、垂直面ｂの受ける照射エネルギ
ー（Ｅｂ）と頂面ｃが受ける照射エネルギー（Ｅｃ）
は、 Ｅｂ＝Ｅｏ×ｃｏｓ４５° ＝Ｅｏ×ｓｉｎ４５°＝Ｅｃ となって両面ｂ、ｃに均等に光を照射することが可能と
なり、両面ｂ、ｃ上に形成される遮光膜２も均一なもの
となる。The irradiation angle α of the parallel light L is selected so that the angles formed by the parallel light L and the vertical plane b and the top plane c are the same. Here, the irradiation angle α may be set to 45 °, but it may be slightly deviated from this, and normally 45 °.
± 5 °. At this time, the irradiation energy (Eb) received by the vertical surface b and the irradiation energy (Ec) received by the top surface c
Is: Eb = Eo × cos 45 ° = Eo × sin 45 ° = Ec, which makes it possible to uniformly irradiate both surfaces b and c, and the light-shielding film 2 formed on both surfaces b and c is also uniform. Becomes

【００１５】なお、この際、リニアフレネルレンズ１外
周の上記平面部１２にも同時に光照射し、上記平面部１
２上の着色感光剤３を部分硬化させて感光膜５が形成さ
れるようにする（図１（ｂ）参照）。上記平面部１２は
上記頂面ｃと平行であるので、上記平面部１２が受ける
照射エネルギーは、上記頂面ｃおよび垂直面ｂと同等の
ものとなる。At this time, the plane portion 12 on the outer periphery of the linear Fresnel lens 1 is also irradiated with light at the same time, and the plane portion 1
The colored photosensitive material 3 on 2 is partially cured so that the photosensitive film 5 is formed (see FIG. 1B). Since the flat surface portion 12 is parallel to the top surface c, the irradiation energy received by the flat surface portion 12 is the same as that of the top surface c and the vertical surface b.

【００１６】その後、図２（４）において、リニアフレ
ネルレンズ１全体を洗浄することにより、光が照射され
なかった上記傾斜面ａ上の感光剤２を洗い流す。Then, in FIG. 2 (4), the entire linear Fresnel lens 1 is washed to wash away the photosensitizer 2 on the inclined surface a which is not irradiated with light.

【００１７】かくして上記凸状部１１の垂直面ｂおよび
頂面ｃに均一な遮光膜２を同時に形成することができ
る。しかも、水平な頂面ｃを有するリニアフレネルレン
ズ１は傷付きにくいので、このようにして得られる無反
射板は品質の高い耐久性に優れるものとなる。Thus, the uniform light-shielding film 2 can be simultaneously formed on the vertical surface b and the top surface c of the convex portion 11. Moreover, since the linear Fresnel lens 1 having the horizontal top surface c is not easily scratched, the non-reflecting plate thus obtained has high quality and excellent durability.

【００１８】また、この時、リニアフレネルレンズ１外
周の平面部１２に同時に形成される感光膜５の露光、洗
浄条件は上記垂直面ｂおよび頂面ｃと同等であるので、
その形成状態も同等なものとなる。よって、上記平面部
１２における感光膜４の塗り分け品質を確認すること
で、凸状部１１を形成した製品部の塗り分け品質（露光
および現像の出来映え、位置ずれ等）を容易に確認する
ことができ、生産性が向上する。At this time, the exposure and cleaning conditions for the photosensitive film 5 formed simultaneously on the flat surface portion 12 on the outer periphery of the linear Fresnel lens 1 are the same as those for the vertical surface b and the top surface c.
The formation state is also the same. Therefore, by confirming the coating quality of the photosensitive film 4 on the flat surface portion 12, it is possible to easily confirm the coating quality of the product portion on which the convex portion 11 is formed (the quality of exposure and development, the positional deviation, etc.). And productivity is improved.

【００１９】なお、上記平面部１２は、しかる後、所望
の製品形状に合わせて、例えば図１（ａ）の点線に沿っ
て切り取り、最終製品とすればよい。After that, the flat surface portion 12 may be cut out along the dotted line in FIG. 1 (a) in accordance with a desired product shape to form a final product.

【００２０】上記第１の実施の形態では、凸状部１１の
水平な頂面ｃと垂直面ｂに遮光膜２を形成する方法につ
いて説明したが、上記凸状部１１の形状はこれに限るも
のではない。例えば、図３のように、遮光膜２を形成し
ようとする側面が垂直面でなく傾斜面ｂ´（傾斜角β＝
６０°）であってもよく、少なくとも水平な頂面ｃを有
するものであればよい。この場合、水平な頂面ｃと傾斜
面ｂ´に同等に光照射するには、これら各面と平行光Ｌ
のなす角度が一致するように照射角度αを６０°とすれ
ばよい。In the first embodiment, the method of forming the light shielding film 2 on the horizontal top surface c and the vertical surface b of the convex portion 11 has been described, but the shape of the convex portion 11 is not limited to this. Not a thing. For example, as shown in FIG. 3, the side surface on which the light shielding film 2 is to be formed is not a vertical surface but an inclined surface b ′ (inclination angle β =
60 °), as long as it has at least a horizontal top surface c. In this case, in order to illuminate the horizontal top surface c and the inclined surface b ′ equally, the parallel light L
The irradiation angle α may be set to 60 ° so that the angles formed by the two match.

【００２１】このように、遮光膜２を形成しようとする
二面の角度に応じて照射角度αを適宜、変更すればよ
い。一般に、遮光膜２を形成する二面のなす角度をθと
すると、該二面に同等に光照射するための照射角度αは
θ／２となる。As described above, the irradiation angle α may be appropriately changed according to the angles of the two surfaces on which the light shielding film 2 is to be formed. Generally, when the angle formed by the two surfaces forming the light-shielding film 2 is θ, the irradiation angle α for equally irradiating the two surfaces is θ / 2.

【００２２】[0022]

【発明の効果】以上、本発明によれば、凸状部が水平な
頂面を有するリニアフレネル板の、上記頂面を含む異な
る２面に、均一な遮光膜を同時に形成することができ
る。また、凸状部が水平な頂面を有するため、得られた
製品は、表面の傷付き防止性に優れ、耐久性が大きく向
上する。また、リニアフレネル板の外周に平面部を設け
ておけば、遮光膜の形成状態のチェックが容易で、生産
性を向上させることができる。As described above, according to the present invention, a uniform light-shielding film can be simultaneously formed on two different surfaces including the top surface of a linear Fresnel plate having a convex top surface with a horizontal top surface. Further, since the convex portion has a horizontal top surface, the obtained product has excellent surface scratch resistance and greatly improves durability. Further, if the flat surface is provided on the outer periphery of the linear Fresnel plate, it is easy to check the formation state of the light shielding film, and the productivity can be improved.

【図面の簡単な説明】[Brief description of drawings]

【図１】図１は本発明の第１の実施の形態を示し、図１
（ａ）は本発明方法により形成される無反射板の全体斜
視図、図１（ｂ）はそのＡ−Ａ線断面図である。FIG. 1 shows a first embodiment of the present invention.
FIG. 1A is an overall perspective view of a non-reflecting plate formed by the method of the present invention, and FIG. 1B is a sectional view taken along the line AA.

【図２】図２は、本発明方法の工程図を示す。FIG. 2 shows a process chart of the method of the present invention.

【図３】図３は本発明の第２の実施の形態を示す無反射
板の部分拡大断面図である。FIG. 3 is a partially enlarged cross-sectional view of a non-reflecting plate showing a second embodiment of the present invention.

【図４】図４は従来の無反射板形状を示す図で、図４
（ａ）は無反射板の全体斜視図、図１（ｂ）はそのＢ−
Ｂ線断面図である。FIG. 4 is a view showing a conventional non-reflecting plate shape.
FIG. 1A is an overall perspective view of a non-reflecting plate, and FIG.
It is a B sectional view.

【図５】図５は無反射板の部分拡大断面図である。FIG. 5 is a partially enlarged sectional view of a non-reflection plate.

【符号の説明】 １ リニアフレネルレンズ（リニアフレネル板） １１ 凸状部 １２ 平面部 ２ 遮光膜 ３ 着色感光剤 ４ ガラスマスク ５ 感光膜 Ｌ 平行光 ａ 傾斜面 ｂ 垂直面 ｃ 頂面[Explanation of reference numerals] 1 linear Fresnel lens (linear Fresnel plate) 11 convex portion 12 flat portion 2 light-shielding film 3 colored photosensitizer 4 glass mask 5 photosensitive film L parallel light a inclined surface b vertical surface c top surface

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 表面に同一形状の多数の凸状部を有し、
上記凸状部の先端を面取りして水平な頂面を形成したリ
ニアフレネル板の、上記頂面を含む角度の異なる二面に
遮光膜を形成する方法であって、 上記リニアフレネル板の全面に着色感光剤を塗布する工
程と、 上記二面にのみ光が照射されるように上記凸状部形状に
応じた光不透過部を形成したマスクを介して、かつ照射
光と上記二面のそれぞれの面とのなす角度が同等となる
ように平行光を照射して、上記二面上の着色感光剤を光
硬化させる工程と、 光が照射されなかった部分の着色感光剤を洗浄除去する
工程とからなることを特徴とする遮光膜の形成方法。1. A plurality of convex portions of the same shape are formed on the surface,
A method of forming a light-shielding film on two surfaces having different angles including the top surface of a linear Fresnel plate in which the tips of the convex portions are chamfered to form a horizontal top surface, wherein the entire surface of the linear Fresnel plate is formed. A step of applying a colored photosensitizer, through a mask formed with a light opaque portion corresponding to the convex shape so that light is irradiated only on the two surfaces, and the irradiation light and the two surfaces respectively. The step of photo-curing the colored photosensitizer on the above-mentioned two surfaces by irradiating parallel light so that the angle formed by the surface of the photosensitizer is the same, and the step of washing and removing the part of the color photosensitizer not irradiated with light. A method for forming a light-shielding film, comprising: 【請求項２】 上記リニアフレネル板の外周部の少なく
とも一部に上記凸状部を形成しない平面部を設けて、該
平面部に着色感光剤を塗布し、上記二面と同時に光照射
して上記平面部上の着色感光剤を光硬化させる請求項１
記載の遮光膜の形成方法。2. The linear Fresnel plate is provided with a flat surface portion on which the convex portion is not formed on at least a part of an outer peripheral portion thereof, a colored photosensitive agent is applied to the flat surface portion, and the two surfaces are simultaneously irradiated with light. The colored photosensitive agent on the flat portion is photocured.
The method for forming a light-shielding film as described above.
JP7266493A 1995-09-19 1995-09-19 Formation of light shielding film Pending JPH0990103A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7266493A JPH0990103A (en) 1995-09-19 1995-09-19 Formation of light shielding film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7266493A JPH0990103A (en) 1995-09-19 1995-09-19 Formation of light shielding film

Publications (1)

Publication Number Publication Date
JPH0990103A true JPH0990103A (en) 1997-04-04

Family

ID=17431700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7266493A Pending JPH0990103A (en) 1995-09-19 1995-09-19 Formation of light shielding film

Country Status (1)

Country Link
JP (1) JPH0990103A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008059712A1 (en) * 2006-11-17 2008-05-22 Sharp Kabushiki Kaisha Optical element, transfer mold, method for manufacturing transfer mold, and method for manufacturing optical element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008059712A1 (en) * 2006-11-17 2008-05-22 Sharp Kabushiki Kaisha Optical element, transfer mold, method for manufacturing transfer mold, and method for manufacturing optical element

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