A vertical image-rotating special-shaped cemented prism

Abstract

The utility model relates to a vertical image-transferring special-shaped glued prism in the field of optical technology, comprising a special-shaped total reflection prism, a special-shaped auxiliary collimating prism and two auxiliary positioning flat glass plates, wherein the two auxiliary positioning flat glass plates are respectively arranged on both sides of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism which cooperate with each other, and the two sides of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism are respectively glued and fixed with the corresponding auxiliary positioning flat glass plates through photosensitive adhesive; the utility model has a simple and reasonable structure, saves the optical path fine-tuning mechanism of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism for adjusting the image transfer accuracy of 90°±1′ through a mechanical structure, makes the structure of the entire photoelectric system more compact, the optical path more reasonable, and the adjustment of the photoelectric system more simple and quick, plays a role in reducing the number of lenses and improving the imaging quality in the aberration correction of complex optical systems, is convenient to manufacture, has a low cost, and has a wide range of uses.

Description

Technical Field

[0001] The utility model belongs to the technical field of optics, and in particular relates to a vertical image-rotating special-shaped glued prism. Background Art

[0002] In the optical system, a mechanical optical path fine-tuning mechanism is generally used to adjust the relative position of each lens (such as a special-shaped total reflection prism and a special-shaped auxiliary collimating prism) between the flat glass, so that the outgoing light is perpendicular to the direction of the incident light, achieving a 90°±1' image transfer accuracy. This operation is time-consuming and labor-intensive, with poor accuracy, and there are problems such as a large number of lenses, a non-compact structure, inconvenient installation and adjustment, and poor imaging quality. Therefore, a vertical image transfer special-shaped glued prism is needed to solve the above technical problems. Utility Model Content

[0003] In view of the above-mentioned defects in the prior art, the utility model provides a vertical image rotation special-shaped glued prism, comprising a special-shaped total reflection prism, a special-shaped auxiliary collimating prism and two auxiliary positioning flat glass plates, wherein the two auxiliary positioning flat glass plates are respectively arranged on both sides of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism that cooperate with each other, and the two sides of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism are respectively glued and fixed to the corresponding auxiliary positioning flat glass plates by photosensitive adhesive;

[0004] The cross section of the special-shaped total reflection prism is a trapezoid, and the four sides of the trapezoid correspond to the four faces of the special-shaped total reflection prism, namely face a, face b, and face c, and the face a, face b, and face c are all polished faces, wherein the face c is coated with a metallic silver internal reflection film;

[0005] The cross section of the special-shaped auxiliary collimating prism is a right triangle, the three faces of the special-shaped auxiliary collimating prism corresponding to the three sides of the right triangle are all polished faces, and the face of the special-shaped auxiliary collimating prism corresponding to the hypotenuse of the right triangle is the d face;

[0006] The b surface corresponds to the d surface up and down. The light is taken in from the a surface of the special-shaped total reflection prism, emitted from the b surface after being reflected by the c surface, then enters from the d surface of the special-shaped auxiliary collimating prism, and is emitted from a right-angle surface of the special-shaped auxiliary collimating prism. The incident light is perpendicular to the emitted light, achieving a 90°±1′ image transfer accuracy effect.

[0007] Preferably, the three adjacent inner angles of the trapezoid are 110.5°, 60°±1', and 45°±1' respectively.

[0008] Preferably, the two internal angles of the right triangle are 90° and 30°±1' respectively.

[0009] Preferably, the auxiliary positioning flat glass is unpolished glass.

[0010] The utility model also includes other components that can make a vertical image rotation special-shaped glued prism work normally, which are all conventional technical means in the field. In addition, the devices or components not limited in the utility model all adopt conventional technical means and conventional equipment in the field.

[0011] The utility model has the following beneficial effects: the structure is simple and reasonable; the special-shaped total reflection prism and the special-shaped auxiliary collimating prism are glued together by two auxiliary positioning flat glasses, which saves the special-shaped total reflection prism and the special-shaped auxiliary collimating prism; the optical path fine-tuning mechanism for adjusting the image transfer accuracy by 90°±1′ through the mechanical structure is used, so that the structure of the entire optoelectronic system is more compact, the optical path is more reasonable, the adjustment of the optoelectronic system is simpler and faster, and it plays a role in reducing the number of lenses and improving the imaging quality in the aberration correction of complex optical systems; the utility model is easy to manufacture, has a low cost, has a wide range of uses, and has good economy and popularization applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0013] Figure 1 It is a structural schematic diagram of a vertical image-rotating special-shaped glued prism in an embodiment of the utility model;

[0014] Figure 2 for Figure 1 Sectional view at AA in the middle;

[0015] Figure 3 for Figure 2 Left view in;

[0016] Figure 4 for Figure 2 Schematic diagram of the structure of the special-shaped total reflection prism;

[0017] Figure 5 for Figure 4 A top view of

[0018] Figure 6 for Figure 2 Schematic diagram of the structure of the special-shaped auxiliary collimating prism;

[0019] Figure 7 for Figure 6 A top view of

[0020] Figure 8 It is a schematic diagram of the structure of the adjustable turntable and the 90° standard angle block;

[0021] Fig. 9 Schematic diagram of placing a special-shaped total reflection prism and a special-shaped auxiliary collimating prism on an adjustable turntable.

[0022] In the figure: 1. Special-shaped total reflection prism; 2. Auxiliary positioning flat glass; 3. Special-shaped auxiliary collimating prism; 4. Surface a; 5. Surface b; 6. Surface c; 7. Adjustable turntable; 8. 90° standard angle block; 9. Collimator (F2000); 10. Front mirror (F400); 11. Front mirror (F1000). DETAILED DESCRIPTION

[0023] The present invention is described in detail below in conjunction with the drawings and specific embodiments in the embodiments of the present invention. The description here is only used to explain the present invention, but not to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work, any modifications, equivalent replacements, improvements, etc., should be included in the protection scope of the present invention.

[0024] Example

[0025] like Figure 1-8 As shown, the utility model provides a vertical image rotation special-shaped glued prism, comprising a special-shaped total reflection prism 1, a special-shaped auxiliary collimating prism 3 and two auxiliary positioning flat glasses 2, wherein the two auxiliary positioning flat glasses 2 are respectively arranged on both sides of the special-shaped total reflection prism 1 and the special-shaped auxiliary collimating prism 3 which cooperate with each other, and the two sides of the special-shaped total reflection prism 1 and the special-shaped auxiliary collimating prism 3 are respectively glued and fixed to the corresponding auxiliary positioning flat glasses 2 by photosensitive adhesive;

[0026] The cross section of the special-shaped total reflection prism 1 is a trapezoid, and the four sides of the trapezoid correspond to the four surfaces of the special-shaped total reflection prism 1, namely, the a surface 4, the b surface 5, and the c surface 6. The a surface 4, the b surface 5, and the c surface 6 are all polished surfaces, and the c surface 6 is coated with a metallic silver internal reflection film;

[0027] The cross section of the special-shaped auxiliary collimating prism 3 is a right triangle, the three sides of the right triangle corresponding to the three surfaces of the special-shaped auxiliary collimating prism 3 are all polished surfaces, and the surface of the special-shaped auxiliary collimating prism 3 corresponding to the hypotenuse of the right triangle is the d surface;

[0028] The b-surface 5 is parallel to the d-surface and corresponds to each other up and down. The light is captured by the a-surface 4 of the special-shaped total reflection prism 1, and is emitted from the b-surface 5 after being reflected by the c-surface 6. It is then incident on the d-surface of the special-shaped auxiliary collimating prism 3 and is emitted from a right-angled surface of the special-shaped auxiliary collimating prism 3. The incident light is perpendicular to the emitted light, achieving a 90°±1′ image transfer accuracy effect.

[0029] The three adjacent internal angles of the trapezoid are 110.5°, 60°±1', and 45°±1' respectively.

[0030] The two internal angles of the right triangle are 90° and 30°±1' respectively.

[0031] The auxiliary positioning flat glass 2 is unpolished glass.

[0032] In the utility model, the special-shaped total reflection prism, the special-shaped auxiliary collimating prism and the two auxiliary positioning flat glass are all made of K9 glass. The photosensitive adhesive is a kind of adhesive that must be cured by ultraviolet light. It can be used as an adhesive to bond glass, and can also be used as a glue for paints, coatings, inks, etc. Ultraviolet light (UV) is a section of electromagnetic radiation other than visible light, with a wavelength in the range of 10nm to 400nm. The curing principle of the photosensitive adhesive is that the photoinitiator (or photosensitizer) in the UV curing material absorbs ultraviolet light under the irradiation of ultraviolet light to produce active free radicals or cations, which triggers monomer polymerization and cross-linking chemical reactions, so that the adhesive is converted from liquid to solid within a few seconds. When removing the glue, put the glued parts on an electric furnace and slowly raise the temperature to 150℃ to 200℃. The glue layer softens and comes off, and then it can be removed with a little external force.

[0033] The manufacturing method of the vertical image-rotating special-shaped cemented prism of the utility model is as follows:

[0034] 1. The special-shaped auxiliary collimating prism is bonded to an auxiliary positioning flat glass by photosensitive adhesive, and the photosensitive adhesive is cured by ultraviolet light.

[0035] 2. Place the shaped total reflection prism on the same auxiliary positioning flat glass through photosensitive adhesive. At this time, the shaped auxiliary collimating prism and the shaped total reflection prism are on the same auxiliary positioning flat glass, and one is not cured and the other is cured. Keep adjusting the position of the shaped total reflection prism (specifically, Figure 8 As shown, a 90° standard angle block 8 and an adjustable turntable 7 cooperate with each other. The 90° standard angle block is placed on the adjustable turntable. A collimator (F2000) 9 and a front mirror (F400) 10 are respectively arranged on both sides of the X-axis direction of the adjustable turntable. A front mirror (F1000) is arranged on one side of the Y-axis direction of the adjustable turntable. The front mirror (F400) 10 is self-aligned and the front mirror (F1000) 11 is continuously fine-tuned in the X, Y, and Z directions to make the image coincide with the graticule of the front mirror (F1000) 11. Then, the 90° standard angle block is removed, as shown in FIG. Fig. 9 As shown, the auxiliary positioning flat glass with the special-shaped auxiliary collimating prism and the special-shaped total reflection prism is placed on an adjustable turntable, and the position of the special-shaped total reflection prism is continuously fine-tuned until the image coincides with the 11-graticule plate of the front mirror (F1000) with an error accuracy of ±1'). After the image transfer accuracy meets the requirements, the special-shaped total reflection prism is cured by ultraviolet light.

[0036] 3. Glue the other side of the special-shaped total reflection prism and the special-shaped auxiliary collimation prism to another auxiliary positioning flat glass through photosensitive adhesive, and cure the photosensitive adhesive with ultraviolet light.

[0037] The utility model discloses a special-shaped total reflection prism and a special-shaped auxiliary collimating prism which are glued together by two auxiliary positioning flat glass plates, thereby saving the optical path fine-tuning mechanism of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism for adjusting the image transfer accuracy by 90°±1′ through a mechanical structure, making the structure of the entire photoelectric system more compact, the optical path more reasonable, and the adjustment of the photoelectric system more simple and quick, which plays a role in reducing the number of lenses and improving the imaging quality in the aberration correction of complex optical systems, is easy to manufacture, has a low cost, has a wide range of uses, and has good economy and popularization.

[0038] The embodiments of the present invention have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vertical image-rotating shaped cemented prism, characterized in that: It comprises a special-shaped total reflection prism, a special-shaped auxiliary collimating prism and two auxiliary positioning flat glass plates, wherein the two auxiliary positioning flat glass plates are respectively arranged on both sides of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism which cooperate with each other, and the two sides of the special-shaped total reflection prism and the special-shaped auxiliary collimating prism are respectively glued and fixed to the corresponding auxiliary positioning flat glass plates by photosensitive adhesive; The cross section of the special-shaped total reflection prism is a trapezoid, and the four sides of the trapezoid correspond to the four faces of the special-shaped total reflection prism, namely face a, face b, and face c, and the face a, face b, and face c are all polished faces, wherein the face c is coated with a metallic silver internal reflection film; The cross section of the special-shaped auxiliary collimating prism is a right triangle, the three faces of the special-shaped auxiliary collimating prism corresponding to the three sides of the right triangle are all polished faces, and the face of the special-shaped auxiliary collimating prism corresponding to the hypotenuse of the right triangle is the d face; The b surface corresponds to the d surface in the upper and lower parts.

2. The vertical image-rotating shaped cemented prism according to claim 1, characterized in that: The three adjacent internal angles of the trapezoid are 110.5°, 60°±1', and 45°±1' respectively.

3. The vertical image-rotating shaped cemented prism according to claim 2, characterized in that: The two internal angles of the right triangle are 90° and 30°±1' respectively.

4. The vertical image-rotating shaped cemented prism according to claim 1, characterized in that: The auxiliary positioning flat glass is unpolished glass.

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