CN215986750U

CN215986750U - Spectroscope with new structure

Info

Publication number: CN215986750U
Application number: CN202120778319.2U
Authority: CN
Inventors: 原胜军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-03-08
Anticipated expiration: 2031-04-16

Abstract

The utility model discloses a new construction spectroscope, its structure is different from the spectroscope of dispersion element and imaging surface in the coplanar, this novel spectroscope dispersion element, observation window, spectrum imaging surface distribute perpendicularly placed in the middle, and this neotype relative volume is littleer, and daylighting is directional with the observation window syntropy, easy operation, and the monocular comfort level is good.

Description

Spectroscope with new structure

Technical Field

The utility model relates to a spectroscope with a new structure, which is a physical optical instrument, is a spectroscope for decomposing a light beam into spectral bands so as to observe spectral characteristics, and is suitable for science popularization, teaching, gem identification, photoelectric source analysis and spectral analysis.

Background

One of the existing commercially available visual spectroscopes is a kirchhoff spectroscope which consists of a dispersion element, a collimator and a telescope, only a narrow section of the visible region spectral range can be observed, the operation is troublesome, and the field of view is narrow; in another direct-view spectroscope, a spectral image can be directly observed through a dispersive element, but the resolution is low and the field of view is narrow.

In addition, a beam splitter exemplified by the patent document with publication number CN2036676U and a commercially available beam splitter of winsco corporation all have hashed light distribution in the same plane, and the lighting direction is at a certain angle with the observation window, which is uncomfortable to operate and the imaging is not optimal.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spectroscope with a new structure, wherein a component lens cone (1), a slit (2), an achromatic lens (3), a plane reflection grating (4), a concave reflector (5) and an observation window (6) are distributed vertically and centrally relatively. Light rays irradiate the slit (2) through the lens barrel (1) to form incident light, the incident light irradiates the achromatic lens (3) to form parallel light beams, the parallel light beams irradiate the planar reflection grating (4) to generate characteristic spectral bands, the spectral bands penetrate through the achromatic lens (3) again to irradiate the concave reflecting mirrors (5) which are not on the same horizontal plane but on the same vertical plane, and the spectral bands imaged by the concave reflecting mirrors (5) can be observed through the observation windows (6) on the same horizontal plane as the concave reflecting mirrors (5). Compared with the traditional spectroscope, the structure of the spectroscope is different, the lighting direction and the observation window are in the same direction, the operation is easier, the single-eye comfort level is good, the spectral line imaging is clear, and the relative volume is smaller.

The lens barrel (1), the slit (2), the achromatic lens (3) and the plane reflection grating (4) form a dispersion layer.

Concave reflector (5), observation window (6) imaging layer.

The lens barrel (1), the slit (2), the achromatic lens (3), the plane reflection grating (4), the concave reflector (5) and the observation window (6) are vertically distributed in the middle relatively.

The plane reflection grating (4) is a 2400 line/mm plane reflection grating, and high resolution is guaranteed.

The concave reflector (5) is a concave reflector with a film-coated front surface and has a width of 200 mm.

The lens cone (1), the observation window (6) and the concave reflector (5) are relatively vertically centered.

The observation window (6) adopts a detachable structure.

This neotype beneficial effect is:

1. the lens cone, the observation window and the concave reflector are relatively vertical and centered, and the lighting and observation are in the same direction, so that the operation is easy;

2. the width of the visible spectrum is 200mm, and compared with the narrow visible range of the traditional spectral observation mirror, the novel full spectrum visible-area full spectrum direct observation mirror can directly observe the full spectrum;

3. the comfort of a single eye is good, the spectral line is clear, and the visual resolution is better than 0.5 nm;

4. the structure is smaller relative to the volume, and various lenses and various photosensitive sensors are conveniently and externally connected.

Drawings

Fig. 1 is a schematic structural diagram of the novel structural spectroscope.

Wherein: 1. a lens barrel; 2. a slit; 3. an achromatic lens; 4. a planar reflective grating; 5. a concave reflector; 6. and (4) an observation window.

Detailed Description

The novel structure spectroscope is further described in detail below with reference to the accompanying drawings.

FIG. 1 schematically shows

As shown in the figure I, the spectroscope with a new structure consists of a lens cone 1, a slit 2, an achromatic lens 3, a plane reflection grating 4, a concave reflector 5 and an observation window 6.

The lens barrel (1), the slit (2), the achromatic lens (3), the plane reflection grating (4), the concave reflector (5) and the observation window (6) are relatively vertical and centered.

The lens cone (1) is used for lighting and uniformly irradiating the slit (2).

The achromatic lens (3) is a double cemented achromatic lens.

The plane reflection grating (4) is a 2400 line/mm holographic plane reflection grating.

The concave reflector (5) is a concave reflector with a coated front surface.

The observation window (6) is detachable.

The novel realization method is implemented as follows:

light rays irradiate the slit (2) through the lens barrel (1) to form incident light, the incident light irradiates the achromatic lens (3) to form parallel light beams, the parallel light beams irradiate the planar reflection grating (4) to generate characteristic spectral bands, the spectral bands penetrate through the achromatic lens (3) again to irradiate the concave reflecting mirrors (5) which are not on the same horizontal plane but on the same vertical plane, and the spectral bands imaged by the concave reflecting mirrors (5) can be observed through the observation windows (6) on the same horizontal plane as the concave reflecting mirrors (5).

Claims

1. A spectroscope with a new structure is characterized by comprising all elements consisting of a spectroscope body, a lens cone (1), a slit (2), an achromatic lens (3), a plane reflection grating (4), a concave reflection mirror (5) and an observation window (6) which are vertically and centrally arranged relatively, wherein light rays pass through the lens cone (1) and irradiate the slit (2) to form incident light, the incident light irradiates the achromatic lens (3) to form parallel light beams, the parallel light beams irradiate the plane reflection grating (4) to generate characteristic spectral bands, the spectral bands penetrate through the achromatic lens (3) again and irradiate the concave reflection mirror (5) which is not on the same horizontal plane but on the same vertical plane, and the spectral bands imaged by the concave reflection mirror (5) can be observed through the observation window (6) which is on the same horizontal plane as the concave reflection mirror (5).