JPS63102402U

JPS63102402U -

Info

Publication number: JPS63102402U
Application number: JP20257586U
Authority: JP
Priority date: 1986-12-23
Filing date: 1986-12-23
Publication date: 1988-07-04
Also published as: JPH0450009Y2

Description

[Brief explanation of the drawing]

第１図は本考案に係る一実施例の斜視図、第２
Ａ図は本考案に係る一実施例における第１の指押
え板９の裏面図、第２Ｂ図は本考案に係る一実施
例の装着断面図、第２Ｃ図は本考案に係る一実施
例における第２の指押え板の裏面図、第３図はこ
の考案の他の実施例を示す光センサの斜視図、第
４図は第１の従来例である光フアイバを用いた光
センサの概要断面図、第５図は第２の従来例であ
る発光素子および受光素子を備えた光センサの概
要断面図、第６図は第３の従来例である光フアイ
バを用いた光センサの概要断面図である。図において、１は指、９は第１の指押え板、１
０は第２の指押え板、１１は発光素子、１２は受
光素子、１５および１５ａは遮光材、１８は反射
板である。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 perspective view of one embodiment of the present invention;
Figure A is a back view of the first finger press plate 9 in an embodiment of the present invention, Figure 2B is a sectional view of the first finger press plate 9 in an embodiment of the present invention, and Figure 2C is a cross-sectional view of the first finger press plate 9 in an embodiment of the present invention. FIG. 3 is a perspective view of an optical sensor showing another embodiment of this invention; FIG. 4 is a schematic cross-section of the first conventional example of an optical sensor using optical fibers. 5 is a schematic sectional view of a second conventional example of an optical sensor equipped with a light emitting element and a light receiving element, and FIG. 6 is a schematic sectional view of a third conventional example of an optical sensor using an optical fiber. It is. In the figure, 1 is a finger, 9 is a first finger press plate, 1
0 is a second finger press plate, 11 is a light emitting element, 12 is a light receiving element, 15 and 15a are light shielding materials, and 18 is a reflecting plate. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) A subject is fixed with two finger plates, and a light-emitting element and a light-receiving element are brought into contact with the surface of the subject;
An optical sensor that detects, with the light receiving element, a change in the amount of absorption of light emitted from the light emitting element depending on the amount of blood flow of the subject, wherein the light emitting element and the light receiving element are attached to one finger press plate. , a reflecting plate is attached to the other finger holding plate for reflecting the light that has come out from the light emitting element and passing through the subject, and for transmitting the reflected light again through the subject to be detected by the light receiving element; A light sensor consisting of (2) In order to shield the light receiving element from disturbance light of the light emitted from the light emitting element and surface reflected light of the light emitted from the light emitting element reflected on the surface of the subject, 2. The optical sensor according to claim 1, wherein the optical sensor is surrounded by a light-shielding material. (3) Utility model registration claim 1 or 2, which comprises surrounding the light emitting element with a light-shielding material so that external light does not mix into the light emitted from the light emitting element.
Optical sensor described in section. (4) In order to shield the reflector from external light,
The optical sensor according to any one of claims 1 to 3, wherein the reflector is surrounded by a light shielding material. (5) The optical sensor according to any one of claims 1 to 4, wherein the light shielding material has a shape that matches the shape of the subject.