Scale for shooting literature and calligraphy

Abstract

The utility model relates to a literature and calligraphy shooting ruler which comprises a general color card and centimeter scale ruler and a paper color card and centimeter scale ruler, and folding ruler hinges are arranged in the middle of the general color card and centimeter scale ruler and the middle of the paper color card and centimeter scale ruler. The universal color card and centimeter graduated scale and the paper color card and centimeter graduated scale are connected to form a standard 90-degree right angle by a clamping piece bolt through a fixed rotation 270-degree oblique angle, and the folding design is more convenient to carry and use. The calligraphy ruler for shooting the documents solves the problem that no paper acidification chromaticity reference mark is provided for shooting the calligraphy, is beneficial to providing standard reference for repairing paper color matching, more accurately reflects historical features of the documents, provides important evidences for future research, and is more practical.

Description

Technical Field

[0001] The utility model relates to the technical field of rulers for photographing book shadows of books and archives, in particular to a ruler for photographing document book shadows. Background Art

[0002] As China continues to advance its work on ancient books in the new era, the establishment of standardized digital ancient book resource libraries is crucial to facilitate their preservation, retrieval, and utilization. Ancient book and document images—images of ancient books and documents—are of great significance for academic research, cultural heritage, and the preservation of ancient books. These images are a crucial component of ancient book digitization and contribute to the long-term preservation of ancient book information. Therefore, standardized photography is imperative. To this end, we have developed a scale for photographing document images. Utility Model Content

[0003] The utility model provides a ruler for photographing document book shadows, which solves the technical problems raised by the background technology in the prior art.

[0004] The utility model solves the above technical problems as follows: it includes a universal color card and a centimeter scale ruler and a paper color card and a centimeter scale ruler, and a folding ruler hinge is provided in the middle of the universal color card and the centimeter scale ruler and the paper color card and the centimeter scale ruler, and a clip lap joint is left at a 45° angle at the front end of the universal color card and the centimeter scale ruler and the paper color card and the centimeter scale ruler, and the two clip lap joints are connected by a fixed rotating clip bolt.

[0005] On the basis of the above technical solution, the present invention can also be improved as follows.

[0006] Furthermore, the universal color card and centimeter scale ruler and the paper color card and centimeter scale ruler are made of acrylic material, and the thickness of the clip overlap is 3mm.

[0007] Furthermore, the folded length of the universal color card and centimeter scale ruler and the paper color card and centimeter scale ruler is 24 cm, the width is 3 cm, and the thickness is 0.6 cm.

[0008] Furthermore, the width of each of the universal color card and centimeter scale ruler and the paper color card and centimeter scale ruler is 2.5 cm, and the total width when combined is 5 cm.

[0009] The beneficial effects of the present invention are as follows: the present invention provides a ruler for photographing document book shadows, which has the following advantages:

[0010] This application provides a ruler for photographing document and book images. Made of acrylic, it measures 24 cm in length, 3 cm in width, and 0.6 cm in thickness. A single piece is 2.5 cm wide, and when folded, it reaches a total width of 5 cm. This ruler opens to a standard 90-degree angle. It features two color charts: the X-axis indicates the color of the paper, and the Y-axis indicates the color of common items. This ruler facilitates reference to the acidity and oxidation levels of the paper in a book, enhancing its practicality.

[0011] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the description, the following is a detailed description of the preferred embodiments of the present invention with the accompanying drawings. The specific implementation methods of the present invention are given in detail in the following embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is a schematic diagram of the structure of a ruler for photographing document book shadows provided by one embodiment of the present utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure of a ruler for photographing a book shadow of a document when it is folded is provided;

[0015] Figure 3 for Figure 1 Provided is a CMYK color coordinate diagram of the X-axis and Y-axis of the color card in the document book shadow ruler;

[0016] Figure 4 for Figure 1 A schematic diagram of the structure of the clip joint in a ruler for photographing document book images is provided.

[0017] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0018] 1. Universal color chart and ruler with centimeter scale; 2. Paper color chart and ruler with centimeter scale; 3. Folding ruler hinge; 4. Bolt for fixing the rotating clip. DETAILED DESCRIPTION

[0019] The following is combined with Figure 1-4The principles and features of the present invention are described, and the examples provided are intended only to illustrate the present invention and are not intended to limit the scope of the present invention. The following paragraphs describe the present invention in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are greatly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0020] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figure 1-4 As shown, the utility model provides a ruler for photographing document and book images, including a universal color card and a centimeter scale ruler and a paper color card and a centimeter scale ruler. Folding ruler hinges are provided in the middle of the universal color card and the centimeter scale ruler and the paper color card and the centimeter scale ruler. A clip lap joint is left at a 45° angle at the front end of the universal color card and the centimeter scale ruler and the paper color card and the centimeter scale ruler. The two clip lap joints are connected by a fixed rotating clip bolt.

[0023] Preferably, the universal color card and centimeter scale ruler 1 and the paper color card and centimeter scale ruler 2 are made of acrylic material, and the thickness of the clip overlap is 3 mm.

[0024] Preferably, the folded length of the universal color card and centimeter scale ruler 1 and the paper color card and centimeter scale ruler 2 is 24 cm, the width is 3 cm, and the thickness is 0.6 cm.

[0025] Preferably, the width of each of the universal color card and centimeter scale ruler 1 and the paper color card and centimeter scale ruler 2 is 2.5 cm, and the total width when combined is 5 cm.

[0026] The specific working principle and usage of this utility model are as follows:

[0027] The utility model provides a ruler for photographing document book shadows. When in use, the ruler can be rotated 270 degrees to form a standard 90-degree right angle. Open the hinge 3 of the folding ruler and place it flat on the operating table. Place the document material to be photographed vertically and flat above the X-axis to start photographing. It is simple and easy to operate. The photographed book shadow can have a color card as a comparison of the current acidification degree of the book page, which can facilitate the ancient book protection staff to match the color of the repaired paper, formulate a repair plan, etc. After being folded, the ruler is compact and easy to carry, making the ancient book protection work more convenient, the standard specification system more complete, the work level effectively improved, and the protection, inheritance, development and utilization of ancient books have significant results.

[0028] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Any ordinary technician in this industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with this profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A ruler for photographing document images, comprising a universal color card and a centimeter scale ruler (1) and a paper color card and a centimeter scale ruler (2), characterized in that: A folding ruler hinge (3) is provided in the middle of the universal color card and centimeter scale ruler (1) and the paper color card and centimeter scale ruler (2), and a clip lap joint is left at a 45° angle at the front end of the universal color card and centimeter scale ruler (1) and the paper color card and centimeter scale ruler (2), and the two clip lap joints are connected by a fixed rotating clip bolt (4).

2. The ruler for photographing document book shadows according to claim 1, characterized in that: The universal color card and centimeter scale ruler (1) and the paper color card and centimeter scale ruler (2) are made of acrylic material, and the thickness of the clip overlap is 3mm.

3. The ruler for photographing document book shadows according to claim 1, characterized in that: The folded length of the universal color card and centimeter scale ruler (1) and the paper color card and centimeter scale ruler (2) is 24 cm, the width is 3 cm, and the thickness is 0.6 cm.

4. The ruler for photographing document book images according to claim 1, characterized in that: The width of each piece of the universal color card and centimeter scale ruler (1) and the paper color card and centimeter scale ruler (2) is 2.5 cm, and the total width when combined is 5 cm.

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