Optical path receiving structure for optical instrument
By designing a conical reflector on the inside of the shell of the optical instrument and using multiple annular mirrors to expand the light signal reception angle, the problem of narrow light signal reception angle in existing optical measurement and detection instruments is solved, and light reception at a wider angle is achieved.
Patent Information
- Application Number
- CN202423254640.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-28
AI Technical Summary
The optical signal receivers of existing optical measurement and detection instruments can only receive light signals at a narrow vertical angle and have difficulty receiving light at a wide angle or even within a 360° range, which limits the use of the instrument.
A light path receiving structure is designed, including a shell, a window cover and an inner conical reflector. The reflector is composed of multiple annular mirror sections, and the mirror sections form different angles with the axis, which expands the receiving angle of the light signal.
Through multi-segment annular mirror reflection, effective reception of light signals at different incident angles is achieved, improving the light receiving capability of the instrument.
Smart Images
Figure CN223461045U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to optical detection instrument component technical field, concretely relates to a light path receiving structure for optical instrument. BACKGROUND
[0002] Optical measuring, detecting instrument such as laser range finder, infrared thermal release sensor is through its built-in light signal receiver to receive the light signal from target object and carries out measurement, detecting work, the light signal receiver of existing optical measuring detecting instrument is usually a plane, can only receive the light signal from the narrow angle of vertical direction, and the receiving surface is narrow, and it is difficult to receive the light in the wide angle even 360 ° range, and the use of instrument is limited. SUMMARY
[0003] To solve the problem in the prior art, the utility model discloses a kind of light path receiving structure for optical instrument, to solve the problem that the angle of existing optical ranging, detecting instrument can receive light path is narrow.
[0004] The technical scheme adopted by the utility model is: the light path receiving structure includes shell, the front end surface of the shell is opened with window, the window is fixedly connected with the window cover of hemispherical light transmission, the inside of the window cover is provided with the reflector of conical shape.
[0005] Further, the reflector and the light receiving module inside optical instrument are coaxial.
[0006] Further, the bottom surface rear side of the shell is welded with the fixed support of L type.
[0007] Further, the conical mirror surface of the reflector is composed of multiple annular mirror surfaces with different angles with the axis.
[0008] Further, the reflector includes 3 annular mirror surfaces, and the angles of the 3 annular mirror surfaces with the axis are 50 °, 45 ° and 40 ° in turn, but not limited to the above angles, and the angle range of incident light can be increased or decreased by angle adjustment.
[0009] Further, the outermost circle of the reflector is provided with the annular connecting plate, and the connecting plate is connected with the window cover.
[0010] Compared with the prior art, the utility model patent designs a kind of light path receiving structure for optical instrument, which is improved in that: the utility model patent designs the light path receiving structure, and conical reflector is arranged on the inside of window cover, the reflector is composed of multiple annular mirror surfaces, multiple annular mirror surfaces are respectively at different angles with the axis of the reflector Angle, can reflect the light signal of different incident angles to the light signal receiver inside instrument, greatly expand the light receiving angle of instrument, improve the application effect of instrument. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural diagram of an optical path receiving structure used in optical instruments.
[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of an optical path receiving structure used in optical instruments.
[0013] Figure 3 It is a structural diagram of a reflector used in a light path receiving structure of an optical instrument.
[0014] In the figure, 1 is a reflector, 2 is a housing, 3 is a window cover, 4 is a light receiving module, 5 is a fixing bracket, 11 is an annular mirror, and 12 is a connecting plate. DETAILED DESCRIPTION
[0015] The present invention is further described below with reference to the accompanying drawings and specific embodiments. The technical solutions in the embodiments of the present invention are clearly and completely described. The embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.
[0016] like Figure 1 、 2 As shown in Figures 3 and 4, this utility model patent designs an embodiment of a light path receiving structure for an optical instrument. In this embodiment, the light path receiving structure includes a housing 2. The functional components of the optical instrument are arranged inside the housing 2. This is a prior art method. A light receiving module 4 is arranged at the center. An L-shaped fixing bracket 5 is welded along the center line of the rear side of the bottom surface of the housing 2. A window is provided on the front surface. A hemispherical light-transmitting window cover 3 is fixedly connected to the window. A conical reflector 1 is provided on the inner side of the window cover 3. The reflector 1 is arranged coaxially with the light receiving module 4 inside the optical instrument.
[0017] Combine Figure 3 As shown, the conical mirror surface of the reflector 1 is composed of three annular mirror sections 11 with different angles to the axis: the angles of the three annular mirror sections 11 to the axis are 50°, 45°, and 40°, respectively. The outermost ring of the reflector 1 is provided with an annular connecting plate 12, which is bonded to the window cover 3 via the connecting plate 12.
[0018] When the optical path receiving structure for optical instruments disclosed in the utility model patent is used, it is installed at the application position through the fixed bracket 5. The incident light signals from 80°, 90° and 100° are refracted by the three-segment annular mirror 11 on the reflector 1 and then incident at an angle perpendicular to the light receiving module 4, thereby realizing the reception of light signals at more incident angles.
[0019] The above merely describes the preferred embodiments of the present application and cannot be used to limit the scope of the present application, that is, any simple equivalent changes or modifications made according to the claims and the description of the present application shall still fall within the scope of the present application.
Claims
1. A light path receiving structure for an optical instrument, characterized by, The light path receiving structure comprises a shell, a window is opened in the front end surface of the shell, a semispherical light-transmitting window cover is fixedly connected at the window, and a conical reflector is arranged on the inner side of the window cover.
2. A light path receiving structure for an optical instrument according to claim 1, characterized in that, The reflector is coaxially arranged with a light receiving module inside the optical instrument.
3. A light path receiving structure for an optical instrument according to claim 2, characterized in that An L-shaped fixing support is welded on the bottom surface of the shell.
4. A light path receiving structure for an optical instrument according to claim 1, wherein The conical mirror surface of the reflector is composed of multiple ring mirror surfaces with different angles with the axis.
5. A light path receiving structure for an optical instrument according to claim 4, characterized in that, The reflector comprises three ring mirror surfaces, and the angles of the three ring mirror surfaces with the axis are 50°, 45° and 40° in sequence.
6. A light path receiving structure for an optical instrument according to claim 5, characterized in that An annular connecting plate is arranged on the outermost circle of the reflector, and the connecting plate is connected with the window cover.