JPH0749390Y2 - Light measuring instrument - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to an optical measuring instrument for measuring spatial spectrum and the like by inputting spatial light from an optical component through an optical input hole formed in a housing.

“Prior Art” When an optical measuring instrument of this type is vibrated, the incident point of the light to be measured with respect to the light receiving section in the optical measuring instrument shifts and correct measurement cannot be performed. Therefore, conventionally, an optical component for emitting the light to be measured and an optical measuring device are arranged on a common vibration isolation table to perform the measurement.

The anti-vibration table is quite large, and it is difficult to prepare an anti-vibration table on the spot if you change the location, and sometimes you cannot prepare the anti-vibration table. .

[Means for Solving the Problems] According to the present invention, the optical bench is mounted so as to project on the surface of the housing of the optical measuring instrument in which the optical input hole is formed, and the optical bench is provided with a position for mounting the optical component. Positioning means for determining is provided.

The optical component is mounted on the optical bench by being positioned by the positioning means, so that the light from the optical component is correctly incident on the light input hole. The optical component and the optical measuring device housing are fixed to each other by the optical bench, and even if the optical measuring device is vibrated, the relative position between the optical component and the optical measuring device is maintained, and good measurement is performed.

According to the second aspect of the present invention, the vibration isolation foot and the leveler foot having the vibration isolation function are attached to the bottom surface of the housing. Of this configuration, the anti-vibration foot is effective when the optical measuring instrument and optical components are tolerant to vibration, and the leveler foot is when placing the optical components directly on the table without mounting them on the optical bench, or when the measuring instrument is mounted on a vibration isolation table. Effective when placed on top.

"Embodiment" FIG. 1 shows an embodiment of claim (1) of the present invention. A light input hole 12 is formed on the side surface of the housing 11 of the optical measuring instrument, and light from an optical component 13 such as a light source or a reflecting mirror enters the housing 11 through the light input hole 12 as spatial light 14, Although not shown, the light is incident on the light receiving element provided in the housing 11.

In this invention, an optical bench 15 is attached so as to project on the surface of the housing 11 on which the light input hole 12 is formed. Optical bench 15
A concave portion 16 is formed as a positioning means in the concave portion 16, and a base portion of the optical component 13 is fitted and inserted into the concave portion 16. The base portion is fixed to the optical bench 15 with, for example, a screw, and the optical component 13 is attached to the optical bench 15. At this time, the light from the optical component 13 is transmitted through the light input hole.
Make sure that the light is incident on 12 at the correct position and direction so that measurements are always made under the same conditions.

According to this configuration, even if vibration is applied to the housing 11, the housing 11
The relative position between the optical component 11 and the optical component 13 is fixed by the optical bench 15 and does not change. Therefore, good measurement can be performed even in a place where the vibration isolation table cannot be prepared.

FIG. 2 shows an embodiment of claim (2) of the present invention.
The same reference numerals are given to the parts corresponding to the drawings. In this example, an anti-vibration foot 17 having an anti-vibration function like a rubber foot is attached to the bottom surface of the housing 11. Further, the height is adjustable and the rigid leveler foot 18 having no vibration isolation function is also attached to the bottom surface of the housing 11. In FIG. 2, the case 11 is placed on a normal table 19 having no vibration isolation function.
More retracted.

According to this configuration, the vibration of the table 19 is less likely to be transmitted to the housing 11 by the vibration isolation foot 17, and it is suitable for an optical measuring device or an optical component that resists vibration. When the vibration isolation foot 17 is not provided, when the housing 11 is vibrated, the vibration is transmitted to the optical component 13 with a slight delay, and the housing 11 and the optical component 13 are relatively small. Even if there is a deviation, the vibration isolation foot 17 suppresses the vibration of the housing 11, and there is no risk of the housing 11 and the optical component 13 being relatively displaced.

To attach the optical component 13 to the optical bench 15, the optical component 13
The distance between the housing and the housing 11 cannot be increased. Optical components
When the housing 13 is separated from the housing 11 by a relatively large distance, the housing 11 and the optical component 13 are arranged on the vibration isolation table 21 as shown in FIG. Case with feet 18
11 is placed on the vibration isolation table 21. At this time, the optical bench 15 is removed if necessary. It should be noted that if the housing 11 is placed on the vibration isolation table 21 by the vibration isolation foot 17 instead of the leveler foot 18, the housing 11 may vibrate, but the rigid leveler foot 18 moves the housing 11 over the vibration isolation table 21.
There is no risk of the housing 11 vibrating when it is placed in.

[Advantage of device] As described above, according to this device, the optical bench 15 is attached to the optical measuring instrument casing 11, and the optical component 13 is attached to the optical bench 15. Therefore, the casing 11 receives vibration. Also optical parts
13 also vibrates at the same time in synchronization with this, and the housing 11 and optical parts
The relative position of 13 does not change, and the spatial light from the optical component 13 always enters the housing 11 correctly, and correct measurement can be performed. When the anti-vibration foot 17 is attached to the housing 11, the anti-vibration foot 17 isolates the housing 11 from vibrations, and is less affected by external vibration. If the optical parts and the optical measuring device are widely separated and the optical parts are placed directly on the table, use the leveler foot.
The vibration conditions of the optical component and the optical measuring device can be the same. The optical bench 15 is provided with a positioning means, and if the optical parts 13 are positioned by this and the optical parts 13 are attached,
Spatial light 14 from 13 automatically in the correct position and direction
It is incident on the inside 11 and the optical component 13 can be easily attached.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view showing another embodiment of the present invention, and FIG. 3 is a side view showing another usage example of the embodiment shown in FIG. It is a figure.

Claims (2)

[Scope of utility model registration request] 1. An optical measuring instrument, in which light from an optical component is incident through a light input hole formed in a housing, wherein the light measuring device projects toward the side surface of the housing on the side of the light input hole so that they cannot move with each other. An optical bench that is fixedly mounted, and an optical unit that is provided on the optical bench and that allows the light from the optical component to be incident on the light input hole in the correct position and direction without adjustment when the optical component is mounted. An optical measuring instrument comprising: a component mounting and positioning means; 2. An optical measuring instrument according to claim 1, wherein a vibration isolation foot having a vibration isolation function and a leveler foot having no vibration isolation function are attached to the bottom surface of the housing.