A device for quickly fixing prism

Abstract

The utility model provides a device for quickly fixing a prism, including a light shield, an eyepiece disc base and a laser positioning device, an operating platform is provided on the outer wall of the light shield, a laser irradiation interval limiting hole is provided on the operating platform, the laser irradiation interval limiting hole matches the eyepiece disc base arranged on the operating platform, a laser of the laser positioning device is provided on the outer side of the light shield, and a light confirmation plate of the laser positioning device is fixedly provided on the inner side of the light shield. A corner mirror is fixedly provided on the inner side of the light shield, and the corner mirror is arranged on the optical path of the laser and the light confirmation plate. The beneficial effect of the utility model is that it adopts the means of laser calibration and ultraviolet curing gel, and at the same time improves the efficiency of the setting and the controllability of the fixing, and solves the problems of mechanical fixing and gel fixing in the prior art at the same time, and can quickly and accurately fix the prism at a predetermined position, which not only reduces the risk of damage to the prism structure, but also avoids the problem of spatial asymmetry caused by the mechanical structure.

Description

Technical Field

[0001] The utility model relates to the field of prism assembly, and more specifically to a device for quickly fixing a prism. Background Art

[0002] Currently, traditional prism fixing methods are mostly mechanical structure fixing. However, due to the characteristics of mechanical structure fixing, there is a risk of damage to the prism due to mechanical collision during fixing. At the same time, the displacement caused by the unstable mechanical structure will cause a certain error in the prism position, resulting in spatial asymmetry and affecting use.

[0003] In the prior art, in order to solve the problems caused by fixing through mechanical structures in the above-mentioned issues, a gel fixing method is used as an alternative means of fixing. The main problems with this method at present are that the gel fixing time is uncontrollable, and it is easy for the structure to make it difficult to quickly and accurately fix the prism to the desired position. There is also the risk that the gel has solidified and fixed the prism before reaching the specified position, or the gel has not solidified after adjustment is completed, resulting in the prism position shifting. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and provides a device for quickly fixing a prism.

[0005] The purpose of the utility model is achieved through the following technical solutions.

[0006] A device for quickly fixing a prism comprises a light shield, an eyepiece disc base and a laser positioning device. An operating platform is arranged on the outer wall of the light shield, a laser irradiation interval limiting hole is arranged on the operating platform, the laser irradiation interval limiting hole matches the eyepiece disc base arranged on the operating platform, a laser of the laser positioning device is arranged on the outer side of the light shield, and a light confirmation plate of the laser positioning device is fixedly arranged on the inner side of the light shield.

[0007] A corner mirror is fixedly arranged on the inner side of the light shield, and the corner mirror is arranged on the optical path of the laser and the light confirmation plate.

[0008] The corner mirror is arranged on the inner side of the sunshade through a corner mirror base.

[0009] The corner mirror base is an L-shaped structure.

[0010] The laser is arranged outside the light shield through a laser base, and the laser base is fixedly connected with the light shield through a base bracket.

[0011] The light confirmation plate is arranged on the inner side of the light shield through the light plate.

[0012] A curing lamp bracket is fixedly arranged on the light shield, and the curing lamp is arranged on the curing lamp bracket.

[0013] An indicator light is arranged on the light shield and is connected with a circuit of a light confirmation board.

[0014] A front cover and a rear cover are respectively arranged on the front and rear ends of the light shield.

[0015] A calibration structure formed by arranging a plurality of photoresistors is arranged on the light confirmation board, and the calibration structure formed by arranging the photoresistors and the indicator lights are connected in series at both ends of the power supply.

[0016] The calibration structure formed by the arrangement of the photoresistors is a cross-shaped structure.

[0017] The beneficial effects of the utility model are:

[0018] This solution improves on the existing technology by adopting laser calibration and ultraviolet curing gel, while improving the setting efficiency and fixation controllability, solving the problems of mechanical fixation and gel fixation in the existing technology, and can quickly and accurately fix the prism in the predetermined position, which not only reduces the risk of damage to the prism structure, but also avoids the problem of spatial asymmetry caused by the mechanical structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the device of the present invention;

[0020] Figure 2 It is a partial enlarged view of the device of the present invention;

[0021] Figure 3 is a front view of the device of the present invention;

[0022] Figure 4 is a cross-sectional view of the device of the present invention;

[0023] In the figure: 1. operating platform; 2. corner mirror base; 3. corner mirror; 4. base bracket; 5. laser base; 6. laser; 7. light shield; 8. front cover; 9. back cover; 10. light confirmation board; 11. light board; 12. eyepiece disk base; 13; curing lamp bracket; 14. curing lamp; 15. indicator light. DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below through specific embodiments.

[0025] Example

[0026] A device for quickly fixing a prism comprises a light shield 7, an eyepiece disc base 12 and a laser positioning device. An operating platform 1 is provided on the outer wall of the light shield 7. A laser irradiation interval limiting hole is provided on the operating platform 1. The laser irradiation interval limiting hole matches the eyepiece disc base 12 arranged on the operating platform 1. A laser 6 of the laser positioning device is provided on the outer side of the light shield 7. A light confirmation plate 10 of the laser positioning device is fixedly provided on the inner side of the light shield 7.

[0027] A corner mirror 3 is fixedly provided inside the light shield 7 , and the corner mirror 3 is arranged on the optical path of the laser 6 and the light confirmation plate 10 .

[0028] The corner mirror 3 is arranged inside the light shielding cover 7 through the corner mirror base 2 .

[0029] The corner mirror base 2 is an L-shaped structure.

[0030] The laser 6 is arranged outside the light shield 7 through the laser base 5 , and the laser base 5 is fixedly connected to the light shield 7 through the base bracket 4 .

[0031] The light confirmation plate 10 is disposed inside the light shielding cover 7 via the light plate 11 .

[0032] A curing lamp frame 13 is fixedly disposed on the light shield 7 , and a curing lamp 14 is disposed on the curing lamp frame 13 .

[0033] An indicator light 15 is provided on the light shield 7 , and the indicator light 15 is connected to the light confirmation board 10 by circuit.

[0034] A front cover 8 and a rear cover 9 are respectively provided on the front and rear ends of the light shield 7 .

[0035] The light confirmation board 10 is provided with a calibration structure formed by arranging a plurality of photoresistors.

[0036] The calibration structure formed by the arrangement of the photoresistors is a cross-shaped structure.

[0037] like Figure 1-3 As shown, the working principle of the device of the present invention is as follows: when in use, the prism is coated with ultraviolet curing gel and then set on the eyepiece disc base 12, and the laser 6 emits a cross-shaped laser for calibration. The cross-shaped laser passes through the set prism and the laser irradiation interval limiting hole in sequence and finally reaches the light confirmation plate 10 for position confirmation. In this embodiment, the number of lasers 6 is 2, and the light confirmation plate 10 uses a circuit board containing a large number of photosensitive elements. It is used to detect the positions of the two cross-shaped lasers irradiated on the light confirmation plate 10 to help determine whether the prism is adjusted to the target state. In this process, the operator adjusts the prism until it reaches the optimal state and uses ultraviolet rays for curing.

[0038] Furthermore, in this embodiment, the calibration of two prisms is taken as an example, and two calibration structures formed by arranging a large number of photoresistors are provided on the light confirmation plate 10, and the calibration structure adopts a cross-shaped structure.

[0039] Connect the photoresistors on each cross-shaped structure in series. Since the dark resistance of the photoresistor is very large, the stronger the light, the smaller the resistance of the photoresistor. In the absence of light or when only part of the photoresistor is illuminated, the resistance of the photoresistors in series is very large, and the two ends of the photoresistors in series are equivalent to being cut off. Since the light of the laser is very strong, when the laser completely covers a cross-shaped structure, the resistance of the photoresistors in series will be very small, and the two ends of the photoresistors in series are equivalent to being turned on.

[0040] Connect the cross-shaped structure and the indicator light in series at both ends of the power supply, and if necessary, connect a common resistor with a suitable resistance value in series to limit the current to prevent the indicator light from burning out. When the laser covers and irradiates all the photoresistors of the cross-shaped structure, the structure is turned on and the indicator light is on. When there is a photoresistor that is not irradiated by the laser, the structure is turned off and the indicator light is off.

[0041] When the eyepiece disc is not placed, the cross-shaped laser of the laser enters the device, is reflected 90° by the corner mirror 3, passes through the laser irradiation interval limiting hole and finally reaches the light confirmation plate 10, which can completely cover the cross-shaped structure on the irradiation light confirmation plate, and the indicator light is on.

[0042] When the eyepiece plate with the eyepiece is placed on the eyepiece plate base 12, the laser light path emitted by the laser 6 is perpendicular to the eyepiece plate. Adjust the position of the eyepiece, when the center of the cross laser passes through the eyepiece along the optical axis of the eyepiece, the light path of the cross laser remains unchanged, and the indicator light 15 is still on, which is the best state; when the center of the cross laser does not pass through the eyepiece along the optical axis of the eyepiece, the light path must be offset due to refraction, and part of the photoresistor in the cross-shaped structure on the light confirmation board 10 is not irradiated by the laser, and the indicator light 15 is off.

[0043] Preferably, considering the magnification and reduction effect of the lens, in order to ensure that all the photoresistors are irradiated in the best state, the cross length of the laser is longer than the length of the cross-shaped structure on the light confirmation plate 10.

[0044] Further, if Figure 4 As shown, in order to optimize the device structure, a corner mirror 3 is provided to reflect the light path.

[0045] Further, in order to facilitate the operator to observe, an indicator light 15 is provided, which is connected to the light confirmation board 10 circuit to indicate whether the prism has reached the correct position. When the prism reaches the correct position, the indicator light 15 lights up to indicate that the lens is in the correct position.

[0046] Furthermore, to facilitate curing, a curing lamp 14 is provided for curing.

[0047] Preferably, the base support 4 adopts an inverted T-shaped structure to support the laser base 5 and provide a certain basic height for it. The light plate 11 and the corner mirror base 2 are both supporting structures. The light shield 7, the front cover 8 and the rear cover 9 are used to block external light.

[0048] The above is a detailed description of the embodiments of the utility model, but the contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A device for quickly fixing a prism, characterized in that: It includes a light shield, an eyepiece disc base and a laser positioning device. An operating platform is provided on the outer wall of the light shield. A laser irradiation interval limiting hole is provided on the operating platform. The laser irradiation interval limiting hole matches the eyepiece disc base arranged on the operating platform. A laser of the laser positioning device is provided on the outer side of the light shield, and a light confirmation plate of the laser positioning device is fixed on the inner side of the light shield.

2. A device for quickly fixing a prism according to claim 1, characterized in that: A corner mirror is fixedly arranged inside the light shield, and the corner mirror is arranged on the optical path of the laser and the light confirmation plate.

3. A device for quickly fixing a prism according to claim 2, characterized in that: The corner mirror is arranged inside the light shield through a corner mirror base.

4. The device for quickly fixing a prism according to claim 1, characterized in that: The laser is arranged outside the light shield through a laser base, and the laser base is fixedly connected to the light shield through a base bracket.

5. The device for quickly fixing a prism according to claim 1, characterized in that: The light confirmation plate is arranged inside the light shield through a light plate.

6. The device for quickly fixing a prism according to claim 1, characterized in that: A curing lamp bracket is fixedly arranged on the light shield, and the curing lamp is arranged on the curing lamp bracket.

7. The device for quickly fixing a prism according to claim 1, characterized in that: The light shield is provided with an indicator light, which is connected to a light confirmation board circuit.

8. The device for quickly fixing a prism according to claim 7, characterized in that: The light confirmation board is provided with a calibration structure formed by a plurality of arranged photoresistors, and the calibration structure formed by the arranged photoresistors and the indicator light are connected in series at both ends of a power supply.

9. The device for quickly fixing a prism according to claim 8, characterized in that: The calibration structure formed by the arrangement of the photoresistors is a cross-shaped structure.

10. The device for quickly fixing a prism according to claim 1, characterized in that: A front cover and a rear cover are respectively arranged on the front and rear ends of the light shield.

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