JPH0446563U - - Google Patents
Info
- Publication number
- JPH0446563U JPH0446563U JP1990089656U JP8965690U JPH0446563U JP H0446563 U JPH0446563 U JP H0446563U JP 1990089656 U JP1990089656 U JP 1990089656U JP 8965690 U JP8965690 U JP 8965690U JP H0446563 U JPH0446563 U JP H0446563U
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- transparent layer
- substrate
- receiving
- 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
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W72/00—Interconnections or connectors in packages
Landscapes
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
Description
第1図は、この考案の一実施例に係る光センサ
用発光ダイオードの側面図である。第2図は、実
施例に係る光センサ用発光ダイオードの動作を説
明するための側面図である。第3図は、従来の光
センサの斜視図である。第4図は、第3図に示し
た光センサを指に装着した状態を示す断面図であ
る。第5A図は、従来の発光ダイオードの一例を
示す平面図であり、第5B図は側面図である。第
6図は、従来の発光ダイオードの問題点を説明す
るための図である。
図において、12は基板、21は第1の透明体
層、22は第2の透明体層、PDはフオトダイオ
ード、LED1,LED2はLEDチツプを示す
。なお、各図中、同一符号は同一または相当部分
を示す。
FIG. 1 is a side view of a light-emitting diode for an optical sensor according to an embodiment of this invention. FIG. 2 is a side view for explaining the operation of the light-emitting diode for an optical sensor according to the example. FIG. 3 is a perspective view of a conventional optical sensor. FIG. 4 is a sectional view showing a state in which the optical sensor shown in FIG. 3 is attached to a finger. FIG. 5A is a plan view showing an example of a conventional light emitting diode, and FIG. 5B is a side view. FIG. 6 is a diagram for explaining problems with conventional light emitting diodes. In the figure, 12 is a substrate, 21 is a first transparent layer, 22 is a second transparent layer, PD is a photodiode, and LED 1 and LED 2 are LED chips. In each figure, the same reference numerals indicate the same or corresponding parts.
Claims (1)
配置され、前記発光素子からの光を受光し、それ
によつて前記発光素子の温度変化に伴なう光量の
変化を検知する受光素子と、 前記発光素子および前記受光素子を覆うように
前記基板の上に設けられた第1の透明体層と、 前記第1の透明体層の上に設けられた第2の透
明体層と、を備え、 前記第1の透明体層の屈折率n1と前記第2の
透明体層の屈折率n2とは下記関係式 n1≧n2 を満たしている光センサ用発光ダイオード。[Claims for Utility Model Registration] A substrate; a light-emitting element provided on the substrate; a light-emitting element disposed on the substrate near the light-emitting element and receiving light from the light-emitting element; a light-receiving element that detects a change in the amount of light due to a change in the temperature of the light-emitting element; a first transparent layer provided on the substrate so as to cover the light-emitting element and the light-receiving element; a second transparent layer provided on the first transparent layer, a refractive index n 1 of the first transparent layer, a refractive index n 2 of the second transparent layer, and is a light emitting diode for an optical sensor that satisfies the following relational expression n 1 ≧ n 2 .
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990089656U JPH0446563U (en) | 1990-08-27 | 1990-08-27 | |
| EP19910113213 EP0472963A3 (en) | 1990-08-27 | 1991-08-06 | Light emitting diode for photosensor and photosensor using such light emitting diode |
| CA002049210A CA2049210A1 (en) | 1990-08-27 | 1991-08-14 | Light emitting diode for photosensor and photosensor using such light emitting diode |
| US07/745,152 US5151628A (en) | 1990-08-27 | 1991-08-15 | Light emitting diode for photosensor and photosensor with such a diode |
| SU915001543A RU2069418C1 (en) | 1990-08-27 | 1991-08-26 | Light-radiating device for photosensor |
| CN91105988A CN1024748C (en) | 1990-08-27 | 1991-08-27 | Light-emitting diode for photosensitive device and photosensitive device using it |
| KR1019910014832A KR950004597B1 (en) | 1990-08-27 | 1991-08-27 | Light emitting diode for light sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990089656U JPH0446563U (en) | 1990-08-27 | 1990-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446563U true JPH0446563U (en) | 1992-04-21 |
Family
ID=31823785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990089656U Pending JPH0446563U (en) | 1990-08-27 | 1990-08-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446563U (en) |
-
1990
- 1990-08-27 JP JP1990089656U patent/JPH0446563U/ja active Pending