JPS63175586A - Solid-state image pickup element - Google Patents
Solid-state image pickup elementInfo
- Publication number
- JPS63175586A JPS63175586A JP62007819A JP781987A JPS63175586A JP S63175586 A JPS63175586 A JP S63175586A JP 62007819 A JP62007819 A JP 62007819A JP 781987 A JP781987 A JP 781987A JP S63175586 A JPS63175586 A JP S63175586A
- Authority
- JP
- Japan
- Prior art keywords
- solid
- state image
- image pickup
- pickup element
- light component
- 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
Links
- 230000010287 polarization Effects 0.000 abstract description 12
- 239000008188 pellet Substances 0.000 abstract description 7
- 239000011521 glass Substances 0.000 abstract description 6
- 230000002238 attenuated effect Effects 0.000 abstract description 5
- 239000000919 ceramic Substances 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Solid State Image Pick-Up Elements (AREA)
- Transforming Light Signals Into Electric Signals (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は固体撮像素子に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a solid-state image sensor.
従来、この種の固体撮像素子は、その素子表面に保護ガ
ラスが取付けられていた。Conventionally, this type of solid-state imaging device has had a protective glass attached to the surface of the device.
第３図は従来の固体撮像素子の一例を示す断面図である
。FIG. 3 is a cross-sectional view showing an example of a conventional solid-state image sensor.
第３図に示す様に従来の固体撮像素子は、パッケージ１
の上に固体撮像素子のペレット２が装着され、パッケー
ジ１の表面に保護ガラス４が取付けられていてパッケー
ジ１内部を保護する構造となっていた。As shown in Fig. 3, the conventional solid-state image sensor has a package 1.
A pellet 2 of a solid-state image sensor was mounted on top of the package 1, and a protective glass 4 was attached to the surface of the package 1 to protect the inside of the package 1.
上述した従来の固体撮像素子は、その素子表面に保護ガ
ラスが取付けられているたけて偏光板がなかったため、
太陽光による乱反射を除去することができなかった。ま
た、乱反射を防止する為には、固体撮像素子に入射する
光軸上に偏光板を保護ガラス面上に設置することが必要
となり、装置のコストが上昇するという欠点があった。The conventional solid-state image sensor mentioned above has a protective glass attached to the surface of the device, and does not have a polarizing plate.
Diffuse reflection caused by sunlight could not be removed. Furthermore, in order to prevent diffused reflection, it is necessary to install a polarizing plate on the protective glass surface on the optical axis that enters the solid-state image sensor, which has the drawback of increasing the cost of the device.
本発明の固体撮像素子は、固体撮像素子の表面に偏光板
を有している。The solid-state image sensor of the present invention has a polarizing plate on the surface of the solid-state image sensor.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing one embodiment of the present invention.
同図において、パッケージ１はセラミック又はプラスチ
ックからなり、その基底部分に固体撮像素子のペレット
２が装着されている。パッケージ１は偏光板３によって
密封されて固体撮像素子のペレット２が保護されている
。In the figure, a package 1 is made of ceramic or plastic, and a pellet 2 of a solid-state image sensor is attached to the base portion of the package 1. The package 1 is sealed with a polarizing plate 3 to protect the pellet 2 of the solid-state image sensor.
偏光板３はその偏光の方向がペレット２の固体撮像素子
の水平走査方向に対して同一となる様に配置されている
。これによって、偏波面が水平走査方向とは異なる光の
成分は減衰されて通過するか又は全く透過することがで
きず、結局乱反射光成分を低減させることができる。The polarizing plate 3 is arranged so that the direction of polarization is the same with respect to the horizontal scanning direction of the solid-state imaging device of the pellet 2. As a result, components of light whose plane of polarization is different from the horizontal scanning direction are attenuated and not transmitted, or are not transmitted at all, resulting in a reduction in the diffusely reflected light component.
第２図は第１図の中の偏光板による光の偏光透過を示す
図である。FIG. 2 is a diagram showing polarization transmission of light by the polarizing plate in FIG. 1.
同図において偏光板３は特定の偏光を得るために数μｍ
ｎ〜数１０μｍのピッチ（１ｍｍ幅当り２０〜５００本
）で多数の線が引かれている。偏光板３を通過する光の
内この線と平行な特定の偏波面Ａを持つ成分の光は減衰
することなく偏光板３を通過するが、それ以外の成分を
持った光は減衰する。特に線と垂直な偏波面Ｂを持った
成分の光は最も大きく減衰する。即ち、光は偏光板３を
通過することによって特定の偏光面Ａ以外の偏光面の成
分を持った光は抑圧されることになる。In the figure, the polarizing plate 3 is several μm thick in order to obtain a specific polarization.
A large number of lines are drawn at a pitch of n to several tens of μm (20 to 500 lines per 1 mm width). Of the light that passes through the polarizing plate 3, light with a component having a specific plane of polarization A parallel to this line passes through the polarizing plate 3 without being attenuated, but light with other components is attenuated. In particular, the component of light with a plane of polarization B perpendicular to the line is attenuated the most. That is, as the light passes through the polarizing plate 3, light having components of polarization planes other than the specific polarization plane A is suppressed.
従って、光の乱反射は様々な偏波面を持った成分の光が
集合していることによって発生しているので、偏光板３
へ入射して来るこれらの光の内特定の偏光面Ａ以外の偏
波面の成分を持った光は抑圧されることによってペレツ
１〜２の固体撮像素子への乱反射光の入射を防止するこ
とができる。Therefore, the diffused reflection of light is caused by the gathering of light components with various polarization planes, so the polarizing plate 3
Among these lights incident on the sensor, light having a component of a polarization plane other than the specific polarization plane A is suppressed, thereby preventing diffusely reflected light from entering the solid-state image sensor of Peretz 1 and 2. can.
以上説明したように本発明は、固体撮像素子表面の保護
ガラスの代わりに偏光板を取付ける事により、太陽光等
による乱反射光成分を除去し、部品を追加することなく
コストを低減して見やすい映像を撮像できる効果がある
。As explained above, the present invention removes the diffusely reflected light component caused by sunlight etc. by attaching a polarizing plate instead of the protective glass on the surface of the solid-state image sensor, reduces costs without adding any parts, and provides easy-to-see images. It has the effect of being able to image.
第１図は本発明の一実施例を示ず断面図、第２図は第１
図の中の偏光板による光の偏光透過を示す図、第３図は
従来の固体撮像素子の一例を示す断面図である。FIG. 1 is a cross-sectional view of one embodiment of the present invention, and FIG. 2 is a cross-sectional view of the first embodiment.
FIG. 3 is a cross-sectional view showing an example of a conventional solid-state image sensor.
Claims (1)
固体撮像素子。A solid-state image sensor characterized by having a polarizing plate on the surface of the solid-state image sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007819A JPS63175586A (en) | 1987-01-14 | 1987-01-14 | Solid-state image pickup element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007819A JPS63175586A (en) | 1987-01-14 | 1987-01-14 | Solid-state image pickup element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63175586A true JPS63175586A (en) | 1988-07-19 |
Family
ID=11676197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62007819A Pending JPS63175586A (en) | 1987-01-14 | 1987-01-14 | Solid-state image pickup element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63175586A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0997891A (en) * | 1995-09-29 | 1997-04-08 | Nec Corp | Solid-state image pickup device |
-
1987
- 1987-01-14 JP JP62007819A patent/JPS63175586A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0997891A (en) * | 1995-09-29 | 1997-04-08 | Nec Corp | Solid-state image pickup device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100438584C (en) | Image process unit | |
| JPS63175586A (en) | Solid-state image pickup element | |
| JPH01248542A (en) | Solid-state photosensor | |
| JPH0415630B2 (en) | ||
| JPH0521768A (en) | Solid display device | |
| JPS5846181B2 (en) | Close-contact image sensor | |
| JPH01248673A (en) | Image sensor | |
| JPH0239465A (en) | Two-dimensional ccd | |
| JPS6355221B2 (en) | ||
| JP3070120B2 (en) | Light receiving device | |
| JPH02170575A (en) | Image sensor | |
| JPS59139670A (en) | Solid-state image pickup element | |
| JPS5830284A (en) | Solid-state image pickup device | |
| JPH03274536A (en) | Optical device with stop device | |
| JPS58173960A (en) | Reader of original | |
| KR200180548Y1 (en) | Ccd camera | |
| JPH05129574A (en) | Close contact type image sensor | |
| JPS60124166A (en) | Reader | |
| JPS63287253A (en) | Contact type image sensor | |
| JPS63114165A (en) | Infrared image sensing device | |
| JPS621380A (en) | Solid-state image pickup device | |
| JPH01138507A (en) | Solid-state image pickup device | |
| JPH05181093A (en) | Optical low pass filter and image pickup device | |
| JPS61287385A (en) | Solid-state image pickup device | |
| JPH04271581A (en) | Solid-state image pickup device |