CN2629010Y - Two-beam parallel light path regulator - Google Patents

Abstract

The utility model discloses a light path collimating device of two paralleled light beams, and consists of a concave reflecting mirror (7) with a central hole, a small-hole diaphragm(5), a 45 degrees reflecting mirror (4) and an angled reflector (3) arranged on the light axle in sequence. In particular, a imaging object glass (6) is disposed between the concave reflecting mirror (7) and the small-hole diaphragm (5). The central hole of the concave reflecting mirror (7) is provided with an area-array charge-coupled device(9) electrically connected with a display screen (8). The angled reflector (3) is disposed on a regulator (2). The regulator (2) is provided with a guide rail (24) and an adjusting block (27) positioned on a rotary seat (23) having a the same axle (28) as a light axle. The sliding block (22) is moveably connected with the guide rail (24), and is contradictorily connected with an adjusting screw (26) through a spring (25). A gland bush (21) positioning the angled reflector (3) is disposed on the sliding block (22). The utility model makes the adjusting working more quickly, conveniently, accurately and reliably; can be used in various occasions of collimating the light axle parallel degree.

Description

Two bundle parallel light path adjusting gears

Technical field the utility model relates to a kind of parallel light path adjusting gear, especially two bundle parallel light path adjusting gears.

Background technology is present, and people are in order to carry out the spectral measurement of atmosphere, and normal the use is integrated with the telescope that transmits and receives parts, and be employed as the applicant.It is made of concave mirror, smallcolumn diaphragm and the 45 degree catoptrons of the band center pit that sets gradually on the optical axis; Wherein, the emission optical axis of 45 degree catoptrons and the reception optical axis of concave mirror are parallel to each other, so that the return laser beam that telescope receives can focus on the aperture center of smallcolumn diaphragm exactly after the concave reflection mirror reflection, otherwise, the detector that is positioned at the aperture center will not receive signal, and optical spectrum instrumentation also can't carry out work.But, there is the deficiency of dressing school difficulty in this telescope, for guaranteeing its emission optical axis and receiving the parallel of optical axis, during assembling, need on the emitting light path of 45 degree catoptrons, to place a hollow corner reflector earlier, afterwards with a branch of directional light irradiation 45 degree catoptrons, and then observe the aperture the center whether hot spot that forms behind the concave mirror institute reflect focalization drops on smallcolumn diaphragm from the center pit of concave mirror, if not at the aperture center, then, make hot spot and aperture center overlaid by constantly adjusting the state of 45 degree catoptrons; Yet, because the concave mirror of 45 degree catoptrons, smallcolumn diaphragm, band center pit all is placed in the telescopical mirror bucket, the hot spot brightness of concave mirror focusing is very faint again in addition, make the parallel adjustment of two optical axises very difficult, particularly when hot spot is not on smallcolumn diaphragm, more make adjustment work at a loss as to what to do.

The summary of the invention the technical problems to be solved in the utility model provides a kind of rational in infrastructure, practical for overcoming weak point of the prior art, uses two bundle parallel light path adjusting gears more easily.

The technical scheme that is adopted comprises concave mirror, smallcolumn diaphragm, the 45 degree catoptron and the corner reflectors of the band center pit that sets gradually on the optical axis, be equipped with image-forming objective lens between particularly said concave mirror and said smallcolumn diaphragm, the central hole of said concave mirror is equipped with the surface array charge-coupled device that is electrically connected with display screen, and said corner reflector places on the regulator.

Further improvement as technical scheme, described regulator is to be equipped with guide rail and regulating block on the swivel base, slide block is connected movingly with said guide rail, with said regulating block between be connected through spring and set screw are inconsistent, be equipped with the gland of fixing said corner reflector on the said slide block, the rotating shaft of said swivel base is concentric with optical axis; Described corner reflector is a corner prism, this corner prism and rotating shaft off-centre.

Beneficial effect with respect to prior art is, one, the image-forming objective lens that is equipped with between concave mirror and smallcolumn diaphragm, and the surface array charge-coupled device that is electrically connected with display screen (CCD) of the central hole of concave mirror setting, with the smallcolumn diaphragm surface imaging on the target surface of CCD, the image planes that CCD receives show on display screen, both made the operator be convenient to observe facula position by display screen, be beneficial to its adjustment again, make adjustment work become efficient and convenient, accurately and reliably 45 degree mirror-state; They are two years old, place corner reflector on the regulator by its adjusting, can catch the directional light of 45 degree mirror reflects in the larger context neatly, and it is reflexed to any concave surface place on the concave mirror, except make adjustment work more simple and easy to do, also can detect the surface accuracy at the different concave surfaces of concave mirror place, be beneficial to finally determine the definite position of hot spot on smallcolumn diaphragm.

Description of drawings is described in further detail optimal way of the present utility model below in conjunction with accompanying drawing.

Fig. 1 is a kind of basic structure synoptic diagram of the present utility model;

Fig. 2 is a kind of basic structure synoptic diagram of regulator among Fig. 1.

Embodiment is referring to Fig. 1, Fig. 2, with the concave mirror 7 and the surface array charge-coupled device 9 that are equipped with corner reflector 3,45 degree catoptrons 4, smallcolumn diaphragm 5, image-forming objective lens 6, band center pit on the optical axis successively, wherein, corner reflector 3 places on the regulator 2, and surface array charge-coupled device 9 places the central hole of concave mirror 7 and is electrically connected with display screen 8.Constituting of regulator 2: be equipped with guide rail 24 and regulating block 27 on the swivel base 23, the rotating shaft 28 of swivel base 23 is concentric with optical axis; Be equipped with on the guide rail 24 and its slide block 22 that connects movingly mutually, 27 of this slide block 22 and regulating blocks are equipped with two springs 25 and set screw 26; Also be equipped with gland 21 on the slide block 22.Corner reflector 3 is selected corner prism for use, and rotating shaft 28 off-centre of the center of this corner prism and regulator 2 swivel bases 23 are fixed on the slide block 22 by gland 21.

During use, helium neon laser beam 1 (also available other directional light) irradiation 45 degree catoptrons 4 with 632.8nm, this laser beam 1 is the directive corner prism after 4 reflections of 45 degree catoptrons, afterwards by corner prism reflection to concave mirror 7, on smallcolumn diaphragm 5, form a hot spot by concave mirror 7 after with its reflect focalization again.Owing to be equipped with image-forming objective lens 6 on optical axis, so this image-forming objective lens 6 images in hot spot on the target surface of surface array charge-coupled device 9, surface array charge-coupled device 9 shows it on display screen 8.The operator by display screen 8 as can be known hot spot whether be positioned at the center of smallcolumn diaphragm 5 so that it transfers to the aperture center by the adjustings to 45 degree catoptrons 4 with hot spot, and then can finish debugging.

Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.

Claims (3)

1, a kind of two bundle parallel light path adjusting gears, the concave mirror (7), smallcolumn diaphragm (5), 45 degree catoptron (4) and the corner reflectors (3) that comprise the band center pit that sets gradually on the optical axis, it is characterized in that being equipped with image-forming objective lens (6) between said concave mirror (7) and said smallcolumn diaphragm (5), the central hole of said concave mirror (7) is equipped with the surface array charge-coupled device (9) that is electrically connected with display screen (8), and said corner reflector (3) places on the regulator (2).

2, device according to claim 1, wherein, regulator (2) is equipped with guide rail (24) and regulating block (27) on the swivel base (23), slide block (22) is connected movingly with said guide rail (24), with said regulating block (27) between through spring (25) and inconsistent connection of set screw (26), be equipped with the gland (21) of fixing said corner reflector (3) on the said slide block (22), the rotating shaft (28) of said swivel base (23) is concentric with optical axis.

3, device according to claim 2, wherein, corner reflector (3) is a corner prism, this corner prism and rotating shaft (28) off-centre.

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