TWI396034B - High magnification lens - Google Patents

Description

High magnification lens

The present invention provides a high-magnification lens, and more particularly to a high-magnification lens having a function of calibrating a field of view.

In the past, a high-magnification photographing device usually uses a digital camera or a monocular camera with a high-magnification lens body of a fixed magnification to magnify and photograph the surface microstructure of a scene.

However, when the user actually shoots a scene with a high-magnification lens, since the field of view of the high-magnification lens is relatively small, it is difficult for the user to judge the field of view by the viewing window or the viewing screen of the digital camera or the monocular camera itself. The position of the range on the surface of the scene causes the user to easily and accurately move the field of view of the high-magnification lens to a predetermined shooting position on the surface of the scene.

Therefore, based on the above problems, it is necessary to develop a position for the user to directly visually determine the field of view on the surface of the scene to improve the ease of use of the high-magnification lens.

An object of the present invention is to provide a high-magnification lens having a function of calibrating its field of view, so that the user can directly visually determine the position of the field of view.

In order to achieve the above object, the present invention provides a high-magnification lens that is mounted on a camera for photographing the surface of a scene. The high-magnification lens mainly includes a lens body and a first indexer. The lens body has a depth of field range for clearly capturing the surface of the scene, and a field of view within the depth of field and located on the surface of the scene. The first calibrator is mounted on the lens body, and the first calibrator can project a first bright mark on a periphery of the field of view.

The first calibration device is mounted on the lens body to clearly indicate the field of view for the user to directly align with a specific surface area of the scene to be photographed for smooth shooting. .

The technical content and detailed description of the present invention are as follows with reference to the following drawings: Referring to the first figure, a first preferred embodiment of the high-magnification lens having the visual field range calibration function of the present invention is mainly equipped with a high-magnification lens. It is used on a camera device to perform high-magnification magnification shooting on the microstructure on the surface of a scene. As shown in the figure, the camera device 10 can be a digital camera or a digital camera, and has a focus lens (not shown) built in itself. The high-magnification lens 20 mainly includes a lens body 21 and a first aligner 22 . The magnification of the lens body 21 is a fixed predetermined magnification, and the predetermined magnification is between 10 and 200 times.

As shown in the second figure, the first aligner 22 is mounted on the lens body 21. In the embodiment, the first aligner 22 includes a binary optical element (BOE) 221, a A laser element 222 for generating laser light, and a focusing lens 223. The binary optical element 221 is configured to receive the laser light and generate a first bright mark of a predetermined shape.

As shown in the third and fourth figures, the lens body 21 has a predetermined depth of field (DOF) for clearly capturing the surface 40 of the scene, and is located within the depth of field and located on the surface of the scene. A field of view (FOV) 30 on 40. The laser element of the first aligner 22 can project the first illuminating mark 224 via the binary optical element and the lens at a periphery of the field of view 30 . In this embodiment, the first bright mark 224 is exemplified by an arrow mark, and is not limited thereto in actual implementation, and may be a mark of any shape, but the size needs to be clearly recognized by the naked eye of the user.

Thereby, when the user photographs the surface microstructure of a scene with the high-magnification lens of the present invention, the first brightness mark 224 can clearly indicate the field of view 30 for the user to directly align with the visual view. The specific surface area of the scene to be photographed. Moreover, since the position of the first bright mark 224 falls outside the field of view 30, not within the field of view 30, it does not affect the captured image.

Referring to FIG. 5, a second preferred embodiment of the high-magnification lens having the field of view calibration function of the present invention is substantially the same as the first preferred embodiment, except that the high-magnification lens of the embodiment further includes a package. The second aligner 23 is disposed on the lens body 10, and the second aligner 23 is disposed on a side of the lens body 21 opposite to the first aligner 22. The second aligner 23 has the same configuration as the first aligner 22, and includes a binary optical component (not shown) for receiving the laser light and generating a predetermined second bright light mark, and a A laser beam (not shown) and a focusing lens (not shown).

As shown in the sixth and seventh figures, the second aligner 23 can project the second bright mark 231, and in the embodiment, the first bright mark 224 and the second bright mark 231 and the first In a preferred embodiment, the first bright light mark 224 and the second light mark 231 are each a rectangular frame line surrounding the circumference of the field of view 30. The second bright mark 231 is substantially coincident with the first bright mark 224 projected by the first indexer 22 in the depth of field range (DOF).

Therefore, when the user touches the surface microstructure of the scene with the high-magnification lens of the present invention, when the first brightness mark 224 and the second brightness mark 231 substantially coincide, the first brightness mark 224 and The area surrounded by the frame line of the second bright mark 231 on the surface of the scene clearly indicates the field of view 30 of the high-magnification lens of the present invention, providing the user with the convenience of directly visually aligning the desired image. The specific surface area of the scene. Moreover, since the overlapping position of the first bright mark 224 and the second bright mark 231 is outside the field of view 30, not within the field of view 30, it does not affect the color of the captured image.

In summary, the present invention can clearly indicate the field of view 30 by installing the first aligner 22 and the second aligner 23 on the lens body 21 for the user to directly align directly. The specific surface area of the scene to be photographed is used to smoothly perform the photographing of the surface of the scene, and the effect of the present invention is indeed achieved.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Equivalent changes and modifications made by the scope of the present invention remain within the scope of the present invention.

10. . . Camera

20. . . High magnification lens

twenty one. . . Lens body

twenty two. . . First calibrator

221. . . Binary optics

222. . . Laser element

223. . . Focusing lens

224. . . First bright mark

twenty three. . . Second calibrator

231. . . Second bright mark

30. . . visual field

40. . . surface

The first figure is a schematic view of a first preferred embodiment of the high power lens of the present invention.

The second figure is a partial cross-sectional view of the first preferred embodiment.

The third figure is a plan view of the first preferred embodiment.

The fourth figure is a schematic view of the first preferred embodiment.

Figure 5 is a schematic view of a second preferred embodiment of the high power lens of the present invention.

Figure 6 is a plan view of the second preferred embodiment.

Figure 7 is a schematic view of the second preferred embodiment.

10. . . Camera

20. . . High magnification lens

twenty one. . . Lens body

twenty two. . . First calibrator

224. . . First bright mark

30. . . visual field

Claims (4)

A high-magnification lens is mounted on a camera for photographing a surface of a scene, the high-magnification lens comprising: a lens body having a depth of field range for clearly capturing the surface of the scene, and a field of view in the depth of field and on a surface of the scene; a first calibrator mounted on the lens body, the first calibrator projecting to form a first bright mark on a periphery of the field of view; a second aligner is mounted on the lens body, the second aligner is projected to form a second illuminating mark, and the second illuminating mark is coincident with the first illuminating mark in the depth of field; wherein the first The bright mark and the second bright mark are each a rectangular frame line surrounding the periphery of the field of view. The high-magnification lens of claim 1, wherein the first calibrator comprises a binary optical element, and a laser element that generates the first bright mark via the binary optical element. The high-magnification lens of claim 1, wherein the first calibrator and the second calibrator each comprise a binary optical component, and a second light illuminating mark is generated by the binary optical component. Laser component. The high-magnification lens of claim 1, wherein the magnification of the lens body is a predetermined magnification between 10 and 200 times.