JPS61111439A - Socket for measuring photodetecting element - Google Patents

Abstract

PURPOSE:To obtain a photodetecting element measuring socket enable to simplify its measuring work and to measure the quantity of light precisely by arranging a loading part to be used for a calibrating photodetecting element and a photodetecting element to be measured in common oppositely to a light emitting element on the inside of an upper cover. CONSTITUTION:A light shielding rubber part 9a is arranged on the upper periphery part of a body 2. A light shielding rubber part 9b is also arranged on the lower peripheral pat of the upper cover 1. An optical axis adjusting means 10 for the light emitting device 6 consists of a screw shaft screwed into the body 2 in the rectangular axis direction and thumbscrews into the body 2 in the rectangular axis direction and thumbscrews 10a, 10b on the head parts are exposed to the surfaces. The light emitting device 6 is arranged on a recessed part 11 formed on the inside of the body 2 so as to be moved on plane by the thumbscrews 10a, 10b. A contact pin 4a for the calibrating photodetecting element 4 for constituting a measuring circuit and a contact pin 12 for the photodetecting element to be measured are arranged on the shoulder part of the recessed part 11. The calibrating photodetecting element 4 and the photodetecting element to me measured are fitted in common to the loading part 13 arranged on the inside of the upper cover 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a socket for measuring the characteristics of a light receiving element such as an SPD (silicon photodiode).

[Conventional technology]

Fig. 4 is a perspective view showing the configuration of a conventional SPD measurement socket in a central section. ,
A concave mounting portion (3) is provided on its upper surface. This mounting part (3) has a Vc key repression light receiving element (
4) Or a light receiving element to be measured (not shown) is attached during measurement. In addition, the mounting part (3) is equipped with a light receiving element (4).
A contact bottle (not shown) which comes into contact with the contact bottle (4a) of ) and forms a measuring circuit when installed is provided. (5) is a lock of the top cover (1), and (6) is a light emitting device fixed to the lower part of the main body (2), which is placed opposite to the light transmitting hole (7) of the mounting part (3). (8) is a dark box that covers the entire socket and blocks external light.

The conventional SPD measurement socket is constructed as described above. To measure the light receiving element to be measured using this socket, first open the dark box (8), then open the top cover (1) and open the light receiving element for calibration. The element (4) is mounted within the mounting portion (3) of the main body (2).

Next, close the top lid (1), engage the lock (5), close the dark box (8), and adjust the light intensity (calibration) of the light emitting device (6).

Next, the same operation as above is performed for restarting, and after replacing the light-receiving element for drying (4) with the light-receiving element to be measured in the mounting part (3), the measurement is started.

[Problem that the invention seeks to solve]

Traditional sockets were configured as above, so
During measurement, it was necessary to open and close the dark box twice to exchange samples, making the operation cumbersome and rare. 4. Furthermore, after the light emitting device is installed, it is impossible to adjust the optical axis, so there is a problem in that the amount of light cannot be accurately measured.

The present invention has been made to solve these problems.The function of the dark box is performed by the top lid and the main body, thereby eliminating the need for the conventional dark box.In addition, an optical axis adjustment mechanism is provided in the main body, and the light emitting device is It is an object of the present invention to provide a socket for measuring a light-receiving element that can be built into the main body to simplify measurement work and accurately measure the amount of light.

[Means for solving the problem] The socket for measuring a light receiving element according to the present invention has a
The device is built into the main body so that the optical axis can be adjusted.
A mounting part is provided inside the top lid, opposite to the light emitting device, and serving as both a light receiving element for calibration and a light receiving element to be measured.

[For production]

In the present invention, the outside light shielding means provided between the main body and the top cover seals the inside when the top cover is closed, and performs the same function as a conventional dark box.

Further, the optical axis of the light emitting device can be adjusted from outside the main body.

〔Example〕

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view of the elements constituting an embodiment of the present invention, FIG. 2 is a perspective view showing the top cover of the seven parts turned over, and FIG. 6 is an assembled external view. In these figures, (1) ~
Since (6) is the same as or equivalent to the one in FIG. 4, the same reference numerals are given and the explanation thereof will be omitted.

In the figure, (9) is an external light shielding means, and in this embodiment, a light shielding rubber (9a) is provided around the upper surface of the main body (2). There is also light-shielding rubber around the bottom of the top lid (1) □
(9b) is provided. The light is the optical axis adjustment means of the light emitting device (6), and consists of a screw shaft (not shown) screwed into the main body (2) in the orthogonal direction, and a knob (10
a) (10b) is exposed on the surface. αη is a recess provided inside the main body (2), a light emitting device (6) is provided in the recess α, and the knob (101L) (10
b) Planar movement is possible from VC. At the shoulder of the recess α force, there are a contact pin (4a) for a calibration light receiving element (4) for configuring a measurement circuit, and a contact pin (6) for a light receiving element to be measured (not shown). ) are provided. (to) is the mounting part provided inside the upper lid (1),
The light-receiving element (4) for calibration and the light-receiving element to be measured are attached together.

After the socket of this embodiment is assembled as shown in FIG.
Since it is sealed through a dark box, it performs the same function as a conventional dark box and eliminates the need for a dark box. In addition, the concave portion αυ of the main body (2)
The light emitting device (6) installed inside is removed from the outside A (10
The optical axis can be adjusted by operating a) and (10b) respectively.

〔Effect of the invention〕

As described above, according to the present invention, by providing the function of a conventional dark box to the top cover and main body, the dark box becomes unnecessary.
It simplifies measurement work, and since the optical axis of the light emitting device built into the main body can be adjusted, it is effective in accurately measuring the amount of light.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the components of the embodiment of the present invention;
The figure is a perspective view of the top cover turned over, Figure 6 is an overall external view,
FIG. 4 is a perspective view of a central cross section of a conventional example. (1): Top lid, (2): Main body, (4): Light receiving element for calibration, (9): External light shielding means, α0: Optical axis adjustment means, α→: Mounting part. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] It consists of a main body in which a light emitting device is built in so that the optical axis can be adjusted, and a top cover that can be opened and closed and is sealed on the main body in a state that blocks external light. A socket for measuring a light-receiving element, characterized in that it is provided with a mounting part that serves both as a light-receiving element and a light-receiving element to be measured.