CN211425660U - Hand-held type spectrum illuminometer casing - Google Patents

Abstract

The utility model discloses a hand-held spectral illuminometer shell, wherein the upper part of the shell is provided with a containing cavity (1), and a photosensitive lens (2), a first lens (3), a second lens (4), a grating (5) and an image sensor (6) are arranged in the containing cavity (1); the lower part of the shell is provided with a battery bin (7); the method is characterized in that: the upper part of the accommodating cavity (1) is provided with a light sensing hole (8) with a built-in light sensing lens (2), and the lower part of the light sensing hole (8) is provided with a light transmitting slit (9); a first slope (10) is arranged at the lower part of the light-transmitting slit (9), a plurality of first lens fixing grooves (11) are formed in the first slope (10), and a first lens shading plate (12) is arranged on the side part of the first slope (10); the utility model is provided with a plurality of shading parts, the anti-interference ability is strong, and the measuring precision is high; furthermore, the utility model discloses there are flexibility height, long service life's characteristics in addition.

Description

Hand-held type spectrum illuminometer casing

Technical Field

The utility model belongs to the technical field of the spectrum detecting instrument technique and specifically relates to a hand-held type spectrum illumination appearance casing is related to.

Background

With the continuous development of science and technology and the continuous progress of society, spectral illuminometers are more and more widely applied, and more accurate measurement results are the main targets of the development of spectrometers. At present, the spectrometer on the market generally has the problem that the measurement precision is reduced because the photosensitive element is interfered by the unknown light such as scattered light and diffused light which are irrelevant to the main beam in the measurement process. For example, chinese utility model patent publication No. CN109682791A discloses a hand-held raman spectrometer without optical fiber based on free transmission of spatial light, and specifically discloses numerous parts of the spectrometer including a housing, a laser, a grating device, a coupling lens device, a probe focusing lens, a sample testing accessory, a light detection device, a light splitting structure, a lens, a focusing lens, a control circuit board, etc., but the spectrometer is not provided with a reasonable structure for shielding the interfering light, so that the main beam is easily mixed with the interfering light in the transmission process, thereby reducing the measurement accuracy. Therefore, how to reasonably set a structure for shielding the interference light, eliminate the influence caused by the interference light, and achieve enough use flexibility and instrument service life becomes a difficult problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a hand-held type spectrum illuminance appearance casing. The utility model can effectively shield the interference light beam irrelevant to the main light beam, thereby improving the measurement precision of the main light beam; furthermore, the utility model discloses can rotate the grating angle as required, improve the flexibility of using, each photosensitive element adopts the adhesive to glue fixedly, has improved the fastness of components and parts, has prolonged whole life.

The technical scheme of the utility model: a hand-held spectral illuminometer shell is characterized in that an accommodating cavity is arranged at the upper part of the shell, and a photosensitive lens, a first lens, a second lens, a grating and an image sensor are arranged in the accommodating cavity; the lower part of the shell is provided with a battery bin; the method is characterized in that: the upper part of the accommodating cavity is provided with a photosensitive hole internally provided with a photosensitive lens, and the lower part of the photosensitive hole is provided with a light transmitting slit; a first slope is arranged at the lower part of the light-transmitting slit, a plurality of first lens fixing grooves are formed in the first slope, and a first lens shading plate is arranged on the side part of the first slope; the upper part of the accommodating cavity is provided with a grating fixing cavity for fixing the grating, the grating fixing cavity is arranged at the opposite position of the first slope, and the side part of the grating fixing cavity is provided with a grating light screen; a second slope is arranged on the side part of the accommodating cavity, a plurality of second lens fixing grooves are formed in the second slope, and a second lens shading plate is arranged between the second slope and the light transmitting slit; a bracket for fixing the image sensor is arranged on the side wall of the accommodating cavity and is positioned at the opposite position of the second slope; and the first lens shading plate and the grating shading plate are respectively arranged at two sides of the path of the second slope and the support.

In the aforesaid hand-held type spectrum illuminometer casing, first lens light screen is equipped with circular arc recess transition including first short light screen, the short light screen of second and the high light screen of arranging the setting in proper order between first short light screen, the short light screen of second and the high light screen.

In the aforesaid hand-held type spectrum illuminometer casing, the grating fixed cavity includes the grating seat, and the grating seat rotates with the bottom plate that holds the chamber to be connected, and the lateral part of grating seat is equipped with the grating fixed slot that fixed grating used.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model is sequentially irradiated on a first slope, a grating fixing cavity, a second slope and a bracket along a light beam propagation path, and a first lens light screen is arranged at the side part of the first slope; a grating light screen is arranged on the side part of the grating fixing cavity; a second lens shading plate between the second slope and the light-transmitting slit; the first lens shading plate and the grating shading plate are respectively arranged on two sides of the path of the second slope and the path of the support. Therefore, the utility model discloses a rationally set up interference light beam on light beam propagation path and cover the structure, can cover the interference light beam irrelevant with the main beam effectively to the measurement accuracy of main beam has been improved.

2. In addition, the grating seat arranged on the grating cavity of the utility model is rotationally connected with the bottom plate of the accommodating cavity, therefore, the utility model can rotate the grating angle according to the requirement, and the flexibility of use is improved; be equipped with a plurality of first lens fixed slots and second lens fixed slot on first slope, the second slope respectively, the lateral part of grating seat is equipped with the grating fixed slot that fixed grating was used, and each fixed slot is with each photosensitive element of adhesive fixation, has increased the fastness of components and parts, extension instrument life.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an assembly schematic of the present invention.

The labels in the figures are: 1-a containment chamber; 2-a photosensitive lens; 3-a first lens; 4-a second lens; 5-grating; 6-an image sensor; 7-a battery compartment; 8-a photosensitive hole; 9-a light-transmitting slit; 10-a first ramp; 11-a first lens fixation groove; 12-a first lens mask; 121-first low shutter plate; 122-a second low shutter plate; 123-high visor; 13-a grating fixed cavity; 14-grating light screen; 15-a second ramp; 16-a second lens fixation groove; 17-a second lens barrier; 18-a scaffold; 19-a grating holder; 20-grating fixation groove.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Example (b): as shown in fig. 1 and 2, an accommodating cavity 1 is arranged at the upper part of the housing, and a photosensitive lens 2, a first lens 3, a second lens 4, a grating 5 and an image sensor 6 are arranged in the accommodating cavity 1, and since these parts are conventional parts in the art, they are not described herein again; the lower part of the shell is provided with a battery compartment 7, and the battery compartment 7 is a chamber for storing batteries. The upper part of the accommodating cavity 1 is provided with a light sensing hole 8 with a built-in light sensing lens 2, the lower part of the light sensing hole 8 is provided with a light transmitting slit 9, and external light to be measured enters the accommodating cavity 1 through the light transmitting slit 9; the lower part of the light-transmitting slit 9 is provided with a first slope 10, the angle of the first slope 10 is determined according to the working condition to be measured, light incident and measured in different angles and different fields can be adjusted by adjusting the inclination of the first slope 10, the surface of the first slope 10 is provided with 3 first lens fixing grooves 11, the first lens 3 is fixed by injecting strong glue into the first lens fixing grooves 11, the side part of the first slope 10 is provided with a first lens shading plate 12, and the first lens shading plate 12 is used for shading interference light rays emitted to the second lens 4; the upper part of the accommodating cavity 1 is provided with a grating fixing cavity 13 for fixing the grating, the grating fixing cavity 13 is a generally cylindrical cavity, the grating 5 can rotate circularly, the grating fixing cavity 13 is arranged at the opposite position of the first slope 10, the side part of the grating fixing cavity 13 is provided with a grating light screen 14, and the grating light screen 14 is used for shielding interference light rays emitted to the grating 5; a second slope 15 is arranged on the side of the accommodating cavity 1, the angle of the second slope 15 is determined according to the angle of light reflected by the grating 5, gratings 5 with different parameters can be adjusted by adjusting the inclination of the second slope 15, 4 second lens fixing grooves 16 are arranged on the surface of the second slope 15, and the second lens 4 is fixed by injecting strong glue into the second lens fixing grooves 16; a second lens shading plate 17 is arranged between the second slope 15 and the light-transmitting slit 9, and the second lens shading plate 17 is a generally rectangular thin plate and is used for shading interference light rays emitted to the second lens 4 from the outside; a bracket 18 for fixing the image sensor 6 is arranged on the side wall of the accommodating cavity 1, the bracket 18 is used for fixing and supporting the image sensor 6, and the bracket 18 is positioned at the opposite position of the second slope 15; and the first lens barrier 12 and the grating barrier 14 are respectively arranged at both sides of the path of the second slope 15 and the bracket 18.

As shown in fig. 1, the first lens barrier 12 includes a first short barrier 121, a second short barrier 122 and a high barrier 123 arranged in sequence from one side of the first lens 3 to the direction of the graphic sensor 6, the first short barrier 121 and the second short barrier 122 are generally the same in height, and the height of the high barrier 123 is generally more than twice of the first short barrier 121 and the second short barrier 122; two arc grooves 124 are arranged among the first short light shielding plate 121, the second short light shielding plate 122 and the high light shielding plate 123.

As shown in fig. 2, the grating fixing cavity 13 includes a grating seat 19, the grating seat 19 is connected to the bottom plate of the accommodating cavity 1 in a rotating manner, the grating seat 19 can change the angle through rotating according to the incident light in different angles and different fields, a grating fixing groove 20 for fixing the grating 5 is formed in the side portion of the grating seat 19, and the grating 5 is fixed by injecting strong glue into the grating fixing groove 20.

The working principle is as follows: light of a detected light source enters a photosensitive lens and enters an accommodating cavity through a photosensitive hole and a light transmitting slit in sequence, firstly, light beams enter a first lens on a first slope and are reflected upwards, and meanwhile, scattered light in the light beams is shielded by a light shielding plate of a second lens, so that the scattered light in the light beams is prevented from entering a second lens on a second slope; the main light enters the grating, is dispersed by the grating and irradiates to a second lens on a second slope, the main light is reflected by the second lens and then goes to the image sensor, and meanwhile scattered light in the light beam is shielded by the grating light shielding plate and the first lens light shielding plate; the light rays which are reflected diffusely by the image sensor and then are emitted to the grating and the first lens are shielded by the grating light shielding plate and the first lens light shielding plate. In addition, the grating seat is rotationally connected with the bottom plate of the accommodating cavity, the grating angle can be changed by rotating the grating seat, and the dispersion direction of the light beam can be flexibly adjusted; through filling into bonding glue in first lens fixed slot, second lens fixed slot and grating fixed slot and fix first lens, second lens and grating, strengthened the fastness of components and parts, extension instrument life.

Claims (3)

1. A hand-held spectral illuminometer shell is characterized in that an accommodating cavity (1) is formed in the upper portion of the shell, and a photosensitive lens (2), a first lens (3), a second lens (4), a grating (5) and an image sensor (6) are arranged in the accommodating cavity (1); the lower part of the shell is provided with a battery bin (7); the method is characterized in that: the upper part of the accommodating cavity (1) is provided with a light sensing hole (8) with a built-in light sensing lens (2), and the lower part of the light sensing hole (8) is provided with a light transmitting slit (9); a first slope (10) is arranged at the lower part of the light-transmitting slit (9), a plurality of first lens fixing grooves (11) are formed in the first slope (10), and a first lens shading plate (12) is arranged on the side part of the first slope (10); a grating fixing cavity (13) for fixing a grating is arranged at the upper part of the accommodating cavity (1), the grating fixing cavity (13) is arranged at the opposite position of the first slope (10), and a grating light screen (14) is arranged at the side part of the grating fixing cavity (13); a second slope (15) is arranged on the side part of the accommodating cavity (1), a plurality of second lens fixing grooves (16) are formed in the second slope (15), and a second lens shading plate (17) is arranged between the second slope (15) and the light-transmitting slit (9); a bracket (18) for fixing the image sensor (6) is arranged on the side wall of the accommodating cavity (1), and the bracket (18) is positioned at the opposite position of the second slope (15); and the first lens shading plate (12) and the grating shading plate (14) are respectively arranged at two sides of the path of the second slope (15) and the bracket (18).

2. The hand-held spectral illuminometer housing of claim 1, wherein: the first lens shading plate (12) comprises a first short shading plate (121), a second short shading plate (122) and a high shading plate (123) which are sequentially arranged, and arc grooves (124) are arranged among the first short shading plate (121), the second short shading plate (122) and the high shading plate (123) for transition.

3. The hand-held spectral illuminometer housing of claim 1, wherein: the grating fixing cavity (13) comprises a grating seat (19), the grating seat (19) is rotatably connected with the bottom plate containing the cavity (1), and a grating fixing groove (20) for fixing the grating (5) is formed in the side portion of the grating seat (19).

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