Miniature spectrometer structure
By using seamless connection between grating flanges and slit sheets in the micro spectrometer, and the coordination of grooves and shafts, the problems of slit replacement and mirror angle adjustment are solved, and the light reflection effect and operation convenience are improved.
Patent Information
- Application Number
- CN202421580775.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-05
AI Technical Summary
During the production process of micro spectrometers, it is difficult to replace the slit and the reflection angle of the rectangular mirror is difficult to fine-tune, affecting the light reflection effect.
A micro spectrometer structure is designed, which adopts seamless connection between grating flanges and slit sheets to facilitate replacement of slits; at the same time, the angle adjustment of the rectangular mirror is achieved through the cooperation of grooves and rotation shafts.
It realizes rapid replacement of slits and flexible adjustment of rectangular mirrors, improving the light reflection effect and making operation more convenient.
Smart Images
Figure CN222812469U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a spectrometer structure, in particular to a micro spectrometer structure, belonging to the technical field of spectrometers. Background Art
[0002] A spectrometer is also called a spectrometer. The most widely known one is a direct-reading spectrometer, which consists of an entrance slit, a dispersion system, an imaging system and one or more exit slits. The dispersion element is used to separate the electromagnetic radiation of the radiation source into the required wavelength or wavelength region, and the intensity is measured at the selected wavelength.
[0003] However, in the production process of micro-spectrometers, it is often necessary to replace slits of different widths, and the slits are often fixed with glue, which makes replacement more troublesome. In addition, most rectangular reflectors are fixedly installed, which makes it inconvenient to fine-tune the reflection angle, thus affecting the light reflection effect. Utility Model Content
[0004] The purpose of the utility model is to provide a miniature spectrometer structure in order to solve the above problems, which can facilitate the replacement of different slit incident light and facilitate fine-tuning of the rectangular reflector, thereby improving the reflection effect and making the operation more convenient.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions: a miniature spectrometer structure, including a shell, a protective mechanism is installed on the shell, the protective mechanism includes a cover plate, the bottom of the shell is snap-connected with the cover plate, an incident mechanism is installed on one side of the shell, the incident mechanism includes a grating flange, a slot is provided on the side wall of the shell, a grating flange is snap-connected on the slot, one end of the grating flange extends to the inner side of the shell, a slit is snap-connected on the inner side of one end of the grating flange, a reflection mechanism is installed inside the shell, the reflection mechanism includes a groove, and the inner wall of the shell is symmetrically provided with a plurality of grating flanges. A groove is provided on the inner side of the shell, and a fixing seat is fixedly connected with rotating shafts at both ends of the fixing seat, and the two rotating shafts are rotatably connected to the inside of the groove, a rectangular reflector is installed on one side of the fixing seat, and two bosses are fixedly connected at the midline of the other side of the fixing seat, one of the bosses is installed with a fixing spring, one end of the fixing spring is connected to the shell through a connecting hole, and a screw is threadedly connected to the shell through another connecting hole, and the screw extends to the inside of the shell and conflicts with another boss, a reflection grating and a concave reflector are installed inside the shell, and an image sensor is installed at one end inside the shell.
[0006] Preferably, the groove is an "L"-shaped structure, and one end of the bottom of the groove is a semicircular structure.
[0007] Preferably, four threaded holes are respectively provided at four corners of the shell, and four bolts are rotatably connected to the cover plate, and the bolts are threadedly connected to the threaded holes.
[0008] Preferably, a sealing gasket is snap-connected at the top edge of the housing, and the bottom of the cover plate contacts the sealing gasket.
[0009] Preferably, the sealing gasket is a frame-shaped structure, and the cross-section of the sealing gasket is a rectangular structure with a hollow interior.
[0010] Preferably, the inner side wall of the shell is vertically connected with two positioning pins, and the grating flange is provided with two fixing holes, and the fixing holes are engaged with the positioning pins.
[0011] Preferably, pads are respectively installed at the bottom of both ends of the grating flange, and the bottoms of the pads are in conflict with the slots.
[0012] Preferably, a rotating seat is rotatably connected to the bottom side of the inner part of the shell, and the bottom of the reflection grating is vertically connected to the rotating seat.
[0013] The beneficial effects of the utility model are as follows: the installation of the concave reflector and the grating reflector facilitates the reflection of light, the seamless connection of the grating flange and the slit sheet facilitates the connection of the external optical fiber line, so that the light enters the interior of the shell, the installation of the fixing seat facilitates the connection of the rectangular reflector, the cooperation of the groove and the rotating shaft facilitates the rotation of the fixing seat, the installation of the fixing spring stabilizes the contact of the fixing seat, the rotation of the screw rod causes the screw rod to contact another boss, thereby realizing the contact rotation of the fixing seat, and then adjusting the angle of the rectangular reflector, so that the light is better reflected, which is beneficial for the image sensor to accept processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the connection structure between the grating flange and the housing of the utility model;
[0016] Figure 3 This is a schematic diagram of the connection structure between the groove and the housing of the utility model;
[0017] Figure 4 It is a schematic diagram of the connection structure between the rectangular reflector and the fixing seat of the utility model;
[0018] Figure 5 It is a schematic diagram of the connection structure between the slit sheet and the grating flange of the utility model;
[0019] Figure 6 It is a structural schematic diagram of the sealing gasket of the utility model.
[0020] In the figure: 1. housing; 2. protection mechanism; 201. cover plate; 202. bolt; 203. threaded hole; 204. sealing gasket; 3. incident mechanism; 301. grating flange; 302. slit; 303. positioning pin; 304. slot; 305. fixing hole; 306. pad; 4. reflection mechanism; 401. rectangular reflector; 402. fixing seat; 403. concave reflector; 404. reflection grating; 405. rotating seat; 406. groove; 407. connecting hole; 408. screw; 409. rotating shaft; 410. boss; 411. fixing spring; 5. image sensor. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-6 As shown, a micro-spectrometer structure includes a shell 1, a protective mechanism 2 is installed on the shell 1, the protective mechanism 2 includes a cover plate 201, the cover plate 201 is snap-connected to the bottom of the shell 1, an incident mechanism 3 is installed on one side of the shell 1, the incident mechanism 3 includes a grating flange 301, a slot 304 is provided on the side wall of the shell 1, the grating flange 301 is snap-connected to the slot 304, one end of the grating flange 301 extends to the inner side of the shell 1, a slit sheet 302 is snap-connected to the inner side of one end of the grating flange 301, a reflecting mechanism 4 is installed inside the shell 1, the reflecting mechanism 4 includes a groove 406, the inner side wall of the shell 1 is provided with a symmetrical groove 406, and the inner side of the shell 1 is provided with a fixing seat 4 02, the two ends of the fixed seat 402 are fixedly connected with rotating shafts 409, and the two rotating shafts 409 are rotatably connected with the inside of the groove 406. A rectangular reflector 401 is installed on one side of the fixed seat 402, and two bosses 410 are fixedly connected at the midline of the other side of the fixed seat 402, one of the bosses 410 is installed with a fixing spring 411, and one end of the fixing spring 411 is connected to the shell 1 through a connecting hole 407, and a screw 408 is threadedly connected to the shell 1 through another connecting hole 407, and the screw 408 extends to the inside of the shell 1 and conflicts with another boss 410, a reflection grating 404 and a concave reflector 403 are installed inside the shell 1, and an image sensor 5 is installed at one end inside the shell 1.
[0023] As a technical optimization solution of the present invention, the groove 406 is an "L"-shaped structure, and one end of the bottom of the groove 406 is a semicircular structure, which is conducive to the good installation and engagement of the rotating shaft 409, and is convenient for rotation, and is also convenient for subsequent disassembly and maintenance.
[0024] As a technical optimization solution of the utility model, four threaded holes 203 are respectively provided at the four corners of the shell 1, and four bolts 202 are rotatably connected to the cover plate 201. The bolts 202 are threadedly connected to the threaded holes 203. Through the opening of the threaded holes 203, the bolts 202 and the threaded holes 203 are conveniently detachably connected, thereby realizing the detachable closure of the cover plate 201 and the shell 1, which is beneficial to subsequent disassembly and maintenance.
[0025] As a technical optimization solution of the utility model, a sealing gasket 204 is snap-connected at the top edge of the shell 1, and the bottom of the cover plate 201 is in contact with the sealing gasket 204. Through the installation of the sealing gasket 204, after the cover plate 201 and the shell 1 are closed, the sealing gasket 204 is in contact with the cover plate 201, thereby achieving sealing of the shell 1.
[0026] As a technical optimization solution of the utility model, the sealing gasket 204 is a frame-shaped structure, and the cross-section of the sealing gasket 204 is a rectangular structure with a hollow interior, which is conducive to the sealing gasket 204 having good elasticity, thereby reducing the wear caused by extrusion and affecting the subsequent sealing effect.
[0027] As a technical optimization solution of the utility model, two positioning pins 303 are vertically connected to the inner wall of the shell 1, and two fixing holes 305 are provided on the grating flange 301. The fixing holes 305 are engaged with the positioning pins 303. Through the cooperation of the positioning pins 303 and the fixing holes 305, the grating flange 301 and the shell 1 are installed stably and firmly and are not easy to loosen.
[0028] As a technical optimization solution of the utility model, pads 306 are respectively installed at the bottom of both ends of the grating flange 301, and the bottom of the pads 306 abuts against the slots 304. Through the installation of the pads 306, the grating flange 301 has retractability, and the cover plate 201 is more stable after abutting against the grating flange 301.
[0029] As a technical optimization solution of the utility model, a swivel seat 405 is rotatably connected to the bottom side of the shell 1, and the bottom of the reflection grating 404 is vertically connected to the swivel seat 405. Through the installation of the swivel seat 405, the reflection grating 404 is connected, and the reflection grating 404 can be rotated to adjust the angle.
[0030] When the utility model is used, the grating flange 301 is first installed with the card slot 304, and then the concave reflector 403 and the rectangular reflector 401 are stably installed, and finally the cover plate 201 is covered, and a detachable connection is made by a plurality of bolts 202. With the cooperation of the sealing gasket 204, the cover plate 201 and the housing 1 are tightly sealed, and then the optical fiber line is connected with the grating flange 301, so that light enters the interior of the housing 1, and the light is irradiated on the concave reflector 403 and reflected on the reflection grating 404. By adjusting the reflection grating 404, the light is well irradiated on the rectangular reflector 401, and by rotating the external screw 408, the screw 408 is abutted against the boss 410, so that the fixing seat 402 is freed from the fixing spring 411 and swings, and the angle of the rectangular reflector 401 is finely adjusted, so that the light is well reflected to the image sensor 5 for recognition and processing.
[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
[0032] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.
Claims
1. A micro-spectrometer structure, comprising a housing (1), characterized in that: A protective mechanism (2) is installed on the housing (1), the protective mechanism (2) comprises a cover plate (201), and the bottom of the housing (1) is snap-fitted and connected with the cover plate (201); An incident mechanism (3) is installed on one side of the housing (1), the incident mechanism (3) comprising a grating flange (301), a side wall of the housing (1) is provided with a slot (304), the slot (304) is snap-connected with the grating flange (301), one end of the grating flange (301) extends to the inside of the housing (1), and a slit sheet (302) is snap-connected to the inside of one end of the grating flange (301); A reflecting mechanism (4) is installed inside the housing (1), the reflecting mechanism (4) comprising a groove (406), the inner wall of the housing (1) is provided with a symmetrical groove (406), the inner side of the housing (1) is provided with a fixing seat (402), both ends of the fixing seat (402) are fixedly connected with a rotating shaft (409), the two rotating shafts (409) are rotatably connected to the inside of the groove (406), a rectangular reflecting mirror (401) is installed on one side of the fixing seat (402), and two bosses (401) are fixedly connected at the midline of the other side of the fixing seat (402). 10), a fixing spring (411) is installed on one of the bosses (410), one end of the fixing spring (411) is connected to the housing (1) through a connecting hole (407), a screw rod (408) is threadedly connected to the housing (1) through another connecting hole (407), the screw rod (408) extends into the interior of the housing (1) and contacts the other boss (410), a reflection grating (404) and a concave reflector (403) are installed inside the housing (1), and an image sensor (5) is installed at one end inside the housing (1).
2. A micro-spectrometer structure according to claim 1, characterized in that: The groove (406) is an "L"-shaped structure, and one end of the bottom of the groove (406) is a semicircular structure.
3. The micro-spectrometer structure according to claim 1, characterized in that: Four threaded holes (203) are respectively provided at the four corners of the housing (1); four bolts (202) are rotatably connected to the cover plate (201); the bolts (202) are threadedly connected to the threaded holes (203).
4. The micro-spectrometer structure according to claim 1, characterized in that: A sealing gasket (204) is snap-connected at the top edge of the housing (1), and the bottom of the cover plate (201) is in contact with the sealing gasket (204).
5. The micro-spectrometer structure according to claim 4, characterized in that: The sealing pad (204) is a frame-shaped structure, and the cross section of the sealing pad (204) is a rectangular structure with a hollow interior.
6. The micro-spectrometer structure according to claim 1, characterized in that: Two positioning pins (303) are vertically connected to the inner wall of the housing (1), and two fixing holes (305) are provided on the grating flange (301), and the fixing holes (305) are engaged with the positioning pins (303).
7. The micro-spectrometer structure according to claim 6, characterized in that: Pads (306) are respectively installed at the bottoms of both ends of the grating flange (301), and the bottoms of the pads (306) are in contact with the slots (304).
8. The micro-spectrometer structure according to claim 1, characterized in that: The bottom side of the inner part of the housing (1) is rotatably connected to a rotating seat (405), and the bottom of the reflection grating (404) is vertically connected to the rotating seat (405).