JP2785492B2 - Color separation prism and manufacturing method thereof - Google Patents
Color separation prism and manufacturing method thereofInfo
- Publication number
- JP2785492B2 JP2785492B2 JP2401908A JP40190890A JP2785492B2 JP 2785492 B2 JP2785492 B2 JP 2785492B2 JP 2401908 A JP2401908 A JP 2401908A JP 40190890 A JP40190890 A JP 40190890A JP 2785492 B2 JP2785492 B2 JP 2785492B2
- Authority
- JP
- Japan
- Prior art keywords
- color separation
- prism
- separation prism
- glass plate
- transparent resin
- 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 - Fee Related
Links
- 238000000926 separation method Methods 0.000 title claims description 33
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000011521 glass Substances 0.000 claims description 29
- 239000011347 resin Substances 0.000 claims description 26
- 229920005989 resin Polymers 0.000 claims description 26
- 230000003287 optical effect Effects 0.000 claims description 24
- 238000003384 imaging method Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 239000010408 film Substances 0.000 description 22
- 238000001746 injection moulding Methods 0.000 description 7
- 238000005498 polishing Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 239000005304 optical glass Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
Landscapes
- Optical Filters (AREA)
- Color Television Image Signal Generators (AREA)
- Optical Elements Other Than Lenses (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は光学機器の光学系に使用
される色分解プリズムおよびその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color separation prism used in an optical system of an optical apparatus and a method of manufacturing the same.
【0002】[0002]
【従来の技術】従来から一般に3板式カラー撮像装置と
して用いられている撮像光を複数の色成分光に分解する
色分解プリズムについて図5および図6を参照しながら
説明する。2. Description of the Related Art A color separation prism for separating image light into a plurality of color component lights, which has been generally used as a three-plate type color image pickup apparatus, will be described with reference to FIGS.
【0003】図に示すように、従来の色分解プリズムは
3個のプリズム部材13a、13b、13cからなる。
通常材料としては光学ガラス(BK7、F5等)を使用
し、図に記す形状に光学研磨加工されている。As shown in FIG. 1, a conventional color separation prism includes three prism members 13a, 13b, and 13c.
Usually, optical glass (BK7, F5, etc.) is used as the material, and is optically polished to the shape shown in the figure.
【0004】撮像光4を緑、青、赤各々の色成分光に分
解するために各プリズム部材13a、13b毎に真空蒸
着でプリズム13aには反射防止膜3aと緑成分を反射
する緑反射膜3bが形成されており、プリズム部材13
bには青成分光を反射する青反射膜3cが形成されてい
る。In order to decompose the imaging light 4 into green, blue and red color component lights, the prism 13a is vacuum-deposited for each of the prism members 13a and 13b, and the prism 13a has an antireflection film 3a and a green reflection film for reflecting the green component. 3b are formed, and the prism member 13
On b, a blue reflection film 3c for reflecting blue component light is formed.
【0005】それから各プリズム部材13a、13b、
13cの各成分光の射出部で撮像レンズ(図示せず)の
焦点位置に緑、青、赤、各々の固体撮像装置5a、5
b、5cを配置する。[0005] Then, each prism member 13a, 13b,
13c, the green, blue, and red solid-state image pickup devices 5a, 5a, and 5c are positioned at the focal position of an image pickup lens (not shown) at each component light emission unit.
b and 5c are arranged.
【0006】これらを焦点位置に配置するため色分解プ
リズムの撮像光4の入射部から各固体撮像装置までの
緑、青、赤の各色光路長(nd)が同一になるように組
み立てている。In order to dispose them at the focal position, the color separation prism is assembled such that the green, blue, and red color optical path lengths (nd) from the incident portion of the imaging light 4 to each solid-state imaging device are the same.
【0007】各々のプリズム部材13a、13b、13
cは単体で光学研磨加工されているが各々加工誤差があ
るので、プリズムの組立時に3個のプリズムの接着部を
利用して組立治具等を使用し調節することで緑、青、赤
の各色光路長を同一にしている。Each of the prism members 13a, 13b, 13
c is optically polished by itself, but each has a processing error. Therefore, when the prisms are assembled, they are adjusted by using an assembling jig or the like by using an adhesive portion of the three prisms, so that green, blue, and red are adjusted. The optical path length of each color is the same.
【0008】そして接着剤14a、14bにより各プリ
ズム部材13a、13b、13cを固定一体化してい
る。また各々の色成分光の出射部の平坦部に、各成分光
の光軸に位置合わせされた各固体撮像装置5a、5b,
5cが接着剤により固着されている。The prism members 13a, 13b, 13c are fixedly integrated with the adhesives 14a, 14b. In addition, the solid-state imaging devices 5a, 5b, and 5c aligned with the optical axis of each component light on the flat portion of the emission part of each color component light.
5c is fixed by an adhesive.
【0009】[0009]
【発明が解決しようとする課題】上記従来の色分解プリ
ズムでは、各プリズム部材は光学ガラス材料から研削加
工、光学研磨加工で製作されるが形状が平行平面でなく
異種な角度で交わる平面より形成されていて加工が難し
く作業時間もかかり誤差も生じ易い。In the above-described conventional color separation prism, each prism member is manufactured by grinding and optical polishing from an optical glass material, but the shape is not a parallel plane but a plane which intersects at different angles. It is difficult to process and requires a long working time, and errors are likely to occur.
【0010】3個のプリズム部材を用い各成分光の光路
長を同一にする必要から各々のプリズム部材を組立治具
等を用いてより高精度(誤差30μm以下)の組立を行
なわなければならず組立時間も長くかかる。Since it is necessary to use three prism members and make the optical path length of each component light the same, it is necessary to assemble each prism member with a higher precision (error 30 μm or less) using an assembling jig or the like. The assembly time is also long.
【0011】またプリズム部材の単品価格が高いことで
反射防止膜、反射膜等の光学膜形成時の不良による損失
が大きい。以上のような加工性、量産性の問題があって
全体的な製造コストが高くなる。In addition, since the price of the prism member alone is high, a loss due to a defect in forming an optical film such as an antireflection film and a reflection film is large. Due to the problems of workability and mass productivity as described above, the overall manufacturing cost increases.
【0012】それとは別にプリズム材料が光学ガラスな
ので、重量が重く破損し易く取り扱いに注意が必要であ
る。また各プリズム部材を固着するために専用の接着剤
が必要であり環境条件により、各プリズム部材の相対位
置に変位が生じ易く安定性に欠け信頼性に不安があっ
た。Apart from that, since the prism material is an optical glass, it is heavy and easily damaged, so that care must be taken in handling. In addition, a special adhesive is required to fix each prism member, and the relative position of each prism member is likely to be displaced due to environmental conditions, resulting in poor stability and lack of reliability.
【0013】さらに加工面では、プリズム部材の光学研
磨面は平面が主体で凹部に光学研磨面を形成することは
困難であった。Further, on the processing surface, the optical polishing surface of the prism member is mainly a flat surface, and it is difficult to form the optical polishing surface in the concave portion.
【0014】本発明は上記課題を解決するもので、組立
治具による組立を必要とせず組立コストを低減でき、プ
リズム単品の研削、研磨加工を必要としないから加工コ
ストも低減でき、種々の形状に加工容易、軽量で破損し
難い色分解プリズムとその製造方法を提供することを目
的としている。The present invention solves the above-mentioned problems, and can reduce the assembly cost without the necessity of assembling with an assembling jig. Since the grinding and polishing of a single prism is not required, the processing cost can be reduced, and various shapes can be obtained. It is an object of the present invention to provide a color separation prism which is easy to process, is lightweight, and is not easily damaged, and a method for manufacturing the same.
【0015】[0015]
【課題を解決するための手段】本発明は上記目的を達成
するために撮像光を複数の色成分光に分解する色分解プ
リズムとして、屈折率が同等または近似するガラス板と
透明樹脂を用い、ガラス板には光学干渉膜を形成し、透
明樹脂が色分解プリズムの母材として形状を形成すると
ともにガラス板を固定するようにしたものである。In order to achieve the above object, the present invention uses a glass plate and a transparent resin having the same or similar refractive index as a color separation prism for separating imaging light into a plurality of color component lights. An optical interference film is formed on a glass plate, and a transparent resin forms a shape as a base material of the color separation prism and fixes the glass plate.
【0016】具体的には光学干渉膜を形成したガラス板
を撮像光を分解する位置に色分解プリズムの外形形状を
形成する成形型中で所定の位置に配置した後、溶融した
透明樹脂を成形型中に注入し、冷却・固化して形状を形
成するとともにガラス板を固定し色分解プリズムとした
ものである。Specifically, a glass plate on which an optical interference film is formed is disposed at a predetermined position in a mold for forming an outer shape of a color separation prism at a position where image pickup light is separated, and then a molten transparent resin is formed. It is poured into a mold, cooled and solidified to form a shape, and a glass plate is fixed to form a color separation prism.
【0017】[0017]
【作用】本発明は上記した構成により、色分解プリズム
の母材として透明樹脂を使用するので色分解プリズムの
形状を有する成形型等で一括射出成形が可能であり、射
出成形前に光学干渉膜を形成したガラス板を撮像光の反
射部の所定位置に成形型中で配置する。According to the present invention, since the transparent resin is used as the base material of the color separation prism according to the above-described structure, the injection molding can be performed at a time using a molding die having the shape of the color separation prism. The glass plate on which is formed is disposed in a molding die at a predetermined position of the reflection part of the imaging light.
【0018】熱的性質はガラス板と光学干渉膜の耐熱温
度は透明樹脂の溶融温度約250℃より高いので熱によ
る損傷は発生し難い。射出成形時の成形型温度を透明樹
脂が流動し易い100℃前後に設定することもできる。As for the thermal properties, since the heat resistance temperature of the glass plate and the optical interference film is higher than the melting temperature of the transparent resin of about 250 ° C., damage due to heat hardly occurs. The mold temperature at the time of injection molding can be set at around 100 ° C. where the transparent resin easily flows.
【0019】溶融された透明樹脂を成形型中に射出する
ことでガラス板は透明樹脂により包まれ、成形型を冷却
することで透明樹脂が固化し色分解プリズム形状が成形
されるとともに光学干渉膜の形成されたガラス板が所定
の位置に固定される。By injecting the molten transparent resin into the mold, the glass plate is wrapped in the transparent resin, and by cooling the mold, the transparent resin is solidified to form the color separation prism shape and the optical interference film. Is fixed at a predetermined position.
【0020】ガラス板と透明樹脂の屈折率がほぼ等しい
ので、ガラス板と透明樹脂の界面で光線が曲げられるこ
とはない。Since the refractive indices of the glass plate and the transparent resin are substantially equal, no light beam is bent at the interface between the glass plate and the transparent resin.
【0021】[0021]
【実施例】以下に、本発明の一実施例について図1〜図
4を参照しながら説明する。図1および図2はそれぞれ
3板式カラー撮像装置に使用する色分解プリズムの正面
断面図および平面図で、図に示すように透明樹脂1とガ
ラス板2a、2b、2cから形成されている。反射防止
膜3a、緑反射膜3b、青反射膜3cが形成された各ガ
ラス板2a、2b、2cは、撮像光4を各々緑、青、赤
の3色に反射する位置に配置され、色分解プリズムの母
体を形成する透明樹脂1で射出成形等により包み込まれ
保持・固定されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. 1 and 2 are a front sectional view and a plan view, respectively, of a color separation prism used in a three-plate type color image pickup device, and are formed from a transparent resin 1 and glass plates 2a, 2b, 2c as shown in the drawings. The glass plates 2a, 2b, and 2c on which the antireflection film 3a, the green reflection film 3b, and the blue reflection film 3c are formed are arranged at positions where the imaging light 4 reflects the three colors of green, blue, and red, respectively. It is wrapped and held and fixed by injection molding or the like with a transparent resin 1 forming the base of the decomposition prism.
【0022】撮像光4は、反射防止膜3aとガラス板2
aを透過し緑反射膜3bとガラス板2bで緑色のみが反
射されガラス板2aで全反射し固体撮像装置5aに入射
する。The imaging light 4 passes through the anti-reflection film 3a and the glass plate 2
a, only green is reflected by the green reflection film 3b and the glass plate 2b, and is totally reflected by the glass plate 2a to be incident on the solid-state imaging device 5a.
【0023】次に残りの撮像光は、緑反射膜3bとガラ
ス板2bを透過し青反射膜3cとガラス板2cで青色が
反射され固体撮像装置5bに入射する。そして残りの赤
色は固体撮像装置5cに入射する。Next, the remaining imaging light is transmitted through the green reflection film 3b and the glass plate 2b, is reflected by the blue reflection film 3c and the glass plate 2c, and is incident on the solid-state imaging device 5b. Then, the remaining red light enters the solid-state imaging device 5c.
【0024】撮像光4の入射面から各々固体撮像装置5
a、5b、5c迄の相対的光路長を等しくする必要があ
るが、成形型により入射面から固体撮像装置5a、5
b、5c迄の光路長は組立調整の必要なく決定されてい
る。Each of the solid-state imaging devices 5 from the incident surface of the imaging light 4
Although it is necessary to make the relative optical path lengths a, 5b, and 5c equal, the solid-state imaging devices 5a, 5a,
The optical path lengths b and 5c are determined without the necessity of assembly adjustment.
【0025】透明樹脂1とガラス板2a、2b、2c
は、屈折率が等しく撮像光4が透明樹脂1とガラス板2
a、2b、2cの界面で曲がることはない。Transparent resin 1 and glass plates 2a, 2b, 2c
Means that the imaging light 4 has the same refractive index and the transparent resin 1 and the glass plate 2
There is no bending at the interfaces a, 2b and 2c.
【0026】なお各固体撮像装置5a、5b、5cの取
付面には簡易的な位置決め用の光学的平面を有した凹部
6a、6b、6cを設けている。The mounting surfaces of the solid-state imaging devices 5a, 5b, and 5c are provided with concave portions 6a, 6b, and 6c each having a simple positioning optical plane.
【0027】図3および図4はそれぞれ本発明の一実施
例の色分解プリズムを製造する成形用型の断面図および
正面図である。FIGS. 3 and 4 are a sectional view and a front view, respectively, of a molding die for producing a color separation prism according to an embodiment of the present invention.
【0028】色分解プリズムの凹面形成用凸部7a、7
b,7cを有する射出成形用下型8内の適正な位置に配
置されたガラス板配置溝9a、9b,9cにガラス板2
a、2b,2cを載置し射出成形用上型10を上下型規
正穴11により位置合わせをしながら取付け、湯口12
から溶融した透明樹脂1を射出し、透明樹脂1が流動し
易い温度100℃前後に加熱された上、下型10、8内
に充填する。Convex portions 7a, 7 for forming a concave surface of the color separation prism
The glass plate 2 is inserted into the glass plate disposing grooves 9a, 9b, 9c arranged at appropriate positions in the lower mold 8 for injection molding having b, 7c.
a, 2b, and 2c are placed, and the upper mold 10 for injection molding is mounted while being aligned with the upper and lower mold setting holes 11;
The molten transparent resin 1 is injected into the lower molds 10 and 8 after being heated to about 100 ° C. at which the transparent resin 1 easily flows.
【0029】充填の後、上、下成形型10、8を冷却し
内部の透明樹脂1を固化する。固化した後、上、下成形
型10、8から取り出すことで透明樹脂1は色分解プリ
ズムの母体を形成すると同時に適正な位置に配置された
ガラス板2a、2b,2cを固定する。After the filling, the upper and lower molds 10, 8 are cooled to solidify the transparent resin 1 therein. After solidification, the transparent resin 1 is taken out of the upper and lower molds 10 and 8 so that the transparent resin 1 forms the base of the color separation prism and simultaneously fixes the glass plates 2a, 2b and 2c arranged at appropriate positions.
【0030】[0030]
【発明の効果】以上の実施例から明らかなように本発明
によれば、色分解プリズムにおける撮像光の入射部から
緑、青、赤の各成分光の出射部迄の相対位置は成形型精
度で決定されるので従来のような高価な組立治具を使用
する各プリズム部材の組立作業を必要とせず、組立によ
る相対位置のばらつきを生じない。As is apparent from the above embodiments, according to the present invention, the relative position from the entrance of the imaging light to the exit of each of the green, blue and red component lights in the color separation prism is determined by the accuracy of the molding die. Therefore, it is not necessary to assemble each prism member using an expensive assembling jig as in the related art, and the relative position does not vary due to the assembling.
【0031】したがって品質が安定し製造歩留りが大き
く向上する。且つ瞬時に色分解プリズムが形成できるの
で製造工数も減少し、生産性が向上して大幅なコスト低
減が可能となる。Therefore, the quality is stabilized and the production yield is greatly improved. In addition, since the color separation prism can be formed instantaneously, the number of manufacturing steps is reduced, the productivity is improved, and the cost can be significantly reduced.
【0032】またプリズム母体が透明樹脂であるため軽
量で破損しにくく、取り扱いも手軽である。また射出成
形であることから従来のような角度を有した面の光学研
磨が不要で加工コストも低減できる。さらに撮像光の射
出面に凹面の光学研磨面が形成できることから固体撮像
素子の簡易的な位置決めが可能である。Further, since the prism matrix is made of a transparent resin, it is lightweight, hardly damaged, and easy to handle. In addition, since injection molding is used, optical polishing of a surface having an angle as in the related art is unnecessary, and the processing cost can be reduced. Furthermore, since a concave optically polished surface can be formed on the emission surface of the imaging light, simple positioning of the solid-state imaging device is possible.
【図1】本発明の一実施例の色分解プリズムの正面断面
図FIG. 1 is a front sectional view of a color separation prism according to an embodiment of the present invention.
【図2】本発明の一実施例の色分解プリズムの平面図FIG. 2 is a plan view of a color separation prism according to one embodiment of the present invention.
【図3】本発明の一実施例の色分解プリズム製造のため
の射出成形用上型の断面図FIG. 3 is a sectional view of an upper mold for injection molding for manufacturing a color separation prism according to one embodiment of the present invention.
【図4】本発明の一実施例の色分解プリズム製造のため
の射出成形用型の正面図FIG. 4 is a front view of an injection mold for manufacturing a color separation prism according to an embodiment of the present invention.
【図5】従来の色分解プリズムの正面断面図FIG. 5 is a front sectional view of a conventional color separation prism.
【図6】従来の色分解プリズムの平面図FIG. 6 is a plan view of a conventional color separation prism.
1 透明樹脂 2a,2b,2c ガラス板 3a 反射防止膜(光学干渉膜) 3b 緑反射膜(光学干渉膜) 3c 青反射膜(光学干渉膜) 6a,6b,6c 凹部 9a,9b,9c ガラス板配置溝 DESCRIPTION OF SYMBOLS 1 Transparent resin 2a, 2b, 2c Glass plate 3a Antireflection film (optical interference film) 3b Green reflection film (optical interference film) 3c Blue reflection film (optical interference film) 6a, 6b, 6c Concave parts 9a, 9b, 9c Glass plate Placement groove
Claims (4)
リズムであって、屈折率が同等または近似したガラス板
と透明樹脂からなり、ガラス板には光学干渉膜が形成さ
れており、透明樹脂が母材としてプリズム形状を形成す
るとともガラス板を固定している色分解プリズム。1. A color separation prism for separating imaging light into a plurality of color components, comprising a glass plate and a transparent resin having the same or approximate refractive index, and an optical interference film formed on the glass plate. A color separation prism in which a transparent resin forms a prism shape as a base material and a glass plate is fixed.
凹部を設けた請求項1記載の色分解プリズム。2. The color separation prism according to claim 1, wherein a concave portion on an optical plane is provided in an emission portion of the color-separated imaging light.
色分解プリズムの形状を形成する成形型中で撮像光を反
射する位置に配置した後、溶融した透明樹脂を成形型中
に注入、冷却・固化しプリズム形状を形成するとともに
ガラス板を固定する色分解プリズムの製造方法。3. A glass plate on which an optical interference film is formed is disposed at a position for reflecting image pickup light in a mold for forming image separation light into a shape of a color separation prism, and then a molten transparent resin is injected into the mold. And a method for producing a color separation prism that cools and solidifies to form a prism shape and fixes a glass plate.
凹部を形成する形状とした成形型中に透明樹脂を注入す
る請求項3記載の色分解プリズムの製造方法。4. A method for manufacturing a color separation prism according to claim 3, wherein a transparent resin is injected into a mold having a shape for forming a concave portion on an optical plane at an emission portion of the color-separated imaging light.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2401908A JP2785492B2 (en) | 1990-12-13 | 1990-12-13 | Color separation prism and manufacturing method thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2401908A JP2785492B2 (en) | 1990-12-13 | 1990-12-13 | Color separation prism and manufacturing method thereof |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04214521A JPH04214521A (en) | 1992-08-05 |
JP2785492B2 true JP2785492B2 (en) | 1998-08-13 |
Family
ID=18511725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2401908A Expired - Fee Related JP2785492B2 (en) | 1990-12-13 | 1990-12-13 | Color separation prism and manufacturing method thereof |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2785492B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100416335C (en) * | 2005-08-11 | 2008-09-03 | 三星电子株式会社 | Equipment and method for manufacturing optical device |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10015222A1 (en) | 2000-03-27 | 2001-10-04 | Cobra Electronic Gmbh | Optical bearer/housing arrangement for color distribution system, image converters has metal block with radiation inlet, outlets, internal grooves for mirror-filter-color distribution system |
EP2265993B8 (en) * | 2008-03-28 | 2021-07-07 | Contrast, Inc. | Whole beam image splitting system |
TWI593543B (en) * | 2015-01-22 | 2017-08-01 | 尚立光電股份有限公司 | Method for embeded injection molding prism and prism manufactored by using the same |
-
1990
- 1990-12-13 JP JP2401908A patent/JP2785492B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100416335C (en) * | 2005-08-11 | 2008-09-03 | 三星电子株式会社 | Equipment and method for manufacturing optical device |
Also Published As
Publication number | Publication date |
---|---|
JPH04214521A (en) | 1992-08-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7944633B2 (en) | Lens holder for alignment of stacked lens module and manufacturing method thereof | |
JP3154934U (en) | Lens holder for combined lens module | |
JP3154544U (en) | Small laminated optical glass lens module | |
JP5812521B2 (en) | Compound eye unit | |
TW201037385A (en) | Rectangular stacked glass lens module with alignment fixture and manufacturing method thereof | |
US20060139637A1 (en) | Hybrid lens unit and hybrid lens array | |
WO2016145590A1 (en) | Camera module comprising a nir-cut filter and method for producing the same | |
JP2785492B2 (en) | Color separation prism and manufacturing method thereof | |
JP2008170534A (en) | Method of manufacturing optical element, the optical element, and optical element unit | |
TWI768102B (en) | Optical image capturing module, system and manufacturing method thereof | |
JP2003107277A (en) | Optical element for optical connector | |
JP2007279136A (en) | Optical element, optical element module having the same, optical device equipped with the module, and method for manufacturing optical element | |
JP2779585B2 (en) | Imaging device | |
JP2007279134A (en) | Prism, composite optical element with the prism, and optical device with the composite optical element | |
JP2000078349A (en) | Optical read device provided with integrally molded waveguide and manufacture thereof | |
JP4205121B2 (en) | Sheet glass optical element and method for manufacturing the same | |
JP3937349B2 (en) | Optical unit, method for manufacturing the same, and projection display device | |
JP3898176B2 (en) | Sheet glass optical element | |
JP3154933U (en) | Stacking lens module positioning lens holder | |
JP4524311B2 (en) | Prism, imaging device and illumination device including the same, and prism manufacturing method | |
JP2007279137A (en) | Optical element, optical element module having the same, and optical device equipped with the module | |
JP2005107410A5 (en) | ||
JPH08216174A (en) | Production of plastic molded product | |
JPWO2015111708A1 (en) | Lens array optical system manufacturing method and lens array optical system | |
JP7134675B2 (en) | OPTICAL DEVICE MANUFACTURING METHOD, OPTICAL DEVICE, AND IMAGING DEVICE |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |