Device for correcting center of observation head by CCD (Charge Coupled Device)
By using a central observation head device that connects a CCD to a monitor and uses a crosshair reticle to project an image onto the monitor, the eye fatigue problem caused by traditional central observation head devices is solved, thus improving work efficiency.
Patent Information
- Application Number
- CN202520391074.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Traditional observation head center devices require human eyes to calibrate through the central eyepiece of the crosshair, leading to eye fatigue during prolonged work.
A CCD is connected to the monitor, and a crosshair reticle is set through the eyepiece and objective lens. Fine adjustments are made using the CCD mount and set screws, and the crosshair reticle scale lines are clearly imaged on the monitor.
It reduces eye strain and improves work efficiency.
Smart Images
Figure CN223770475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical equipment manufacturing technology, and in particular to a device for calibrating the center of an observation head using a CCD. Background Technology
[0002] Traditional observation heads require the human eye to center them through a crosshair eyepiece, which can easily cause eye fatigue during prolonged use. Therefore, there is a market demand for a central eyepiece device that allows observation via a CCD connected to a monitor. This would reduce eye fatigue and improve work efficiency. Summary of the Invention
[0003] The purpose of this invention is to provide a device for calibrating the center of an observation head using a CCD, so as to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical measures: a device for calibrating the center of an observation head using a CCD, characterized in that: it includes an eyepiece and an objective lens, the eyepiece and the objective lens are fixedly connected by an intermediate connecting seat, an outer ring of one end of the intermediate connecting seat is connected to a CCD connecting seat, a CCD fixing seat for placing the CCD is sleeved on the CCD connecting seat, an inner ring of the other end of the intermediate connecting seat is connected to the eyepiece, the eyepiece is then connected to a reticle fixing tube, a reticle seat is provided inside the reticle fixing tube, a cross reticle is placed on the reticle seat, the cross reticle is pressed and fixed by a reticle pressure ring, a clamping ring is provided at the lower end of the reticle seat, and the reticle seat is positioned by a third set screw.
[0005] Compared with the prior art, the advantages of this utility model are: through the eyepiece and objective lens, and with a crosshair reticle set on one side of the eyepiece, the scale lines of the crosshair reticle are clearly displayed on the monitor during use, and are arranged horizontally and vertically and centered on the monitor. This new structure can reduce eye fatigue and help improve work efficiency.
[0006] As an improvement of this utility model, the intermediate connecting seat is fixed by a first flat-end set screw. The purpose of this design is that the first flat-end set screw allows for minor positional adjustments to the intermediate connecting seat before it is fixed in place.
[0007] As an improvement of this utility model, the CCD mounting base is fixed by a second flat-end set screw. The purpose of this design is that the second flat-end set screw allows for minor position adjustments to the CCD mounting base before it is fixed in place.
[0008] As an improvement of this utility model, the crosshair reticle is provided with scale lines. The purpose of this design is that the scale lines are used to determine the distance of the object being measured.
[0009] As an improvement of this utility model, the outer ring of the reticle holder is a conical surface. The purpose of this design is that the conical surface can increase the gap after installation, better cooperate with the eyepiece and objective lens, and make the center lines of the three axes overlap into a single center line.
[0010] As an improvement of this utility model, the material of the crosshair reticle is optical glass. The purpose of choosing this design is that optical glass is a glass material with excellent optical properties. It is made up of a mixture of various basic glass materials, including elements such as silicates, magnesium, aluminum, potassium, sodium, and calcium. It has advantages such as good heat resistance, resistance to deformation, and resistance to the formation of bubbles and particles. Attached Figure Description
[0011] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0012] In the attached diagram:
[0013] Figure 1 This is a cross-sectional view of the device for calibrating the center of the observation head using a CCD as described in this utility model.
[0014] Figure 2 This is a schematic diagram of the cross-shaped reticle described in this utility model.
[0015] Figure 3 This is an enlarged view of part A of the present invention.
[0016] Explanation of reference numerals in the attached diagram: 1. Pressure ring; 2. Third set screw; 3. Reticle holder; 4. Cross reticle; 5. Reticle pressure ring; 6. Eyepiece; 7. First flat-end set screw; 8. Intermediate connecting seat; 9. Objective lens; 10. CCD connecting seat; 11. CCD mounting seat; 12. Second flat-end set screw; 13. CCD; 14. Reticle fixing tube; 15. Scale line; 16. Crosshair. Detailed Implementation
[0017] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0018] Example 1
[0019] Please refer to Figure 1 -3.
[0020] This embodiment provides a CCD-based device for calibrating the center of an observation head, comprising an eyepiece 6 and an objective lens 9. The eyepiece 6 and the objective lens 9 are fixedly connected by an intermediate connecting seat 8. A CCD connecting seat 10 is connected to the outer ring of one end of the intermediate connecting seat 8. A CCD mounting seat 11 for placing a CCD 13 is fitted onto the CCD connecting seat 10, and the CCD 13 is connected to a display. The eyepiece 6 is connected to the inner ring of the other end of the intermediate connecting seat 8. The eyepiece 6 is then connected to a reticle fixing tube 14. A reticle seat 3 is provided inside the reticle fixing tube 14. A cross-shaped reticle 4 is placed on the reticle seat 3. The cross-shaped reticle 4 is pressed and fixed by a reticle pressure ring 5. A clamping ring 1 is provided at the lower end of the reticle seat 3. The reticle seat 3 is positioned by a third set screw 2.
[0021] In the embodiments of this utility model application, please refer to Figure 1 There are four third flat-end set screws, evenly distributed around the perimeter. The reticle base 3 is fixed by the four third set screws 2 after fine adjustment in the left, right, front and back.
[0022] Furthermore, the intermediate connecting seat 8 is fixed by a first flat-end set screw 7. In the embodiment of this utility model application, there are three first flat-end set screws 7, evenly distributed around the perimeter, which allow for slight positional adjustments to the intermediate connecting seat 8 from different directions before fixing it in place.
[0023] Furthermore, the CCD mounting base 11 is fixed by a second flat-end set screw 12. In the embodiment of this utility model application, there are three second flat-end set screws 12, evenly distributed around the perimeter, which allow for slight positional adjustments to the CCD mounting base 11 from different directions before fixing it in place.
[0024] As an improvement of this utility model, the crosshair reticle 4 is provided with scale lines. The scale lines are used to determine and compare the distance of the measured object.
[0025] Furthermore, the outer ring of the reticle holder 3 is tapered. The tapered surface increases the clearance after installation, providing more space and allowing for better interaction with the eyepiece 6 and objective lens 9, so that the center lines of the three are superimposed onto a single center line. The tapered surface structure also facilitates installation and disassembly.
[0026] Furthermore, the material of the cross-shaped reticle 4 is optical glass. Optical glass is a glass material with excellent optical properties. It is made up of a mixture of various basic glass materials, including elements such as silicates, magnesium, aluminum, potassium, sodium, and calcium. It has advantages such as good heat resistance, resistance to deformation, and resistance to the formation of bubbles and particles.
[0027] This embodiment provides a CCD-based device for calibrating the center of the observation head. During normal use, adjust the four third flat-end set screws to align the center of the reticle 4 with the optical axis center of the eyepiece 6. Adjust the CCD connector 10 to project the image of the reticle 4 onto the target surface within the CCD 13, ensuring the scale lines 15 of the reticle 4 are clearly visible on the display, guaranteeing the optimal vertical position. Loosen the three second flat-end set screws 12 until the scale lines 15 of the reticle 4 are aligned horizontally and vertically and centered on the display, then tighten the three second flat-end set screws 12.
[0028] The beneficial effects of this utility model are as follows: through the eyepiece 6 and the objective lens 9, and with a crosshair reticle 4 set on one side of the eyepiece 6, when in use, the crosshair 16 and scale 15 of the crosshair reticle 4 are clearly adjusted on the display, and they are aligned horizontally and vertically and centered on the display. This new structure can reduce eye fatigue and help improve work efficiency.
[0029] In the description of this utility model, it should be noted that the terms "vertical", "up", "down", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0030] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0031] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A centering device for a viewing head using a CCD, characterized by: The utility model relates to a kind of optical microscopes, including eyepiece (6) and objective lens (9), the eyepiece (6), the objective lens (9) are fixedly connected by intermediate connecting seat (8), the outer circle of one end of the intermediate connecting seat (8) is connected with CCD connecting seat (10), CCD fixing seat (11) for placing CCD (13) is further sleeved on the CCD connecting seat (10), the inner circle of the other end of the intermediate connecting seat (8) is connected with the eyepiece (6), the eyepiece (6) is further connected with scale fixed tube (14), scale seat (3) is provided in the scale fixed tube (14), cross scale (4) is placed on the scale seat (3), cross scale (4) is further fixed by scale pressing ring (5) on top, the lower end of the scale seat (3) is provided with pressing ring (1), the scale seat (3) is positioned by third set screw (2).
2. The centering device for a viewing head using a CCD according to claim 1, characterized in that: The intermediate connecting seat (8) is fixed by first flat-end set screw (7).
3. The centering device for a viewing head using a CCD according to claim 1, wherein: The CCD fixing seat (11) is fixed by second flat-end set screw (12).
4. The centering device for a viewing head using a CCD according to claim 1, wherein: Scale line (15) is provided on the cross scale (4).
5. The centering device for a viewing head using a CCD according to claim 1, wherein: The outer circle of the scale seat (3) is conical surface.
6. A centering device for an observation head according to any one of claims 1 to 5, characterized in that: The material of the cross scale (4) is optical glass.