Color line-scan digital camera with LED light supplement

Abstract

The utility model discloses a color linear array camera with LED light supplement, which comprises a shell, a body and a light supplement unit, the body and the light supplement unit are both arranged in the shell, the light supplement unit supplements light for the body, the light supplement unit comprises an LED light supplement assembly, and the LED light supplement assembly comprises an LED light bead, an aspheric convex lens, a convex lens and a cylindrical mirror which are sequentially arranged according to the light emission sequence. The LED light supplementing assembly forms a light supplementing interval outside the shell, and the camera view field formed by the body is completely contained in the light supplementing interval. According to the LED light supplementing assembly, generation of the strip-shaped light beam is achieved through the large-area cylindrical mirror, the generated strip-shaped light beam is wider, the light supplementing interval is larger, the camera view field formed by the body is completely included in the light supplementing interval, and therefore the camera of the body is not prone to deviating from the light supplementing area, and the imaging effect cannot be flicker; the LED light supplementing assembly is small in overall size and low in production cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of color line array cameras and relates to a color line array camera with LED fill light. Background Art

[0002] At present, the existing technical solutions usually use laser fill-in light units to fill in light for color line array cameras to achieve the imaging function of the measured object. However, the strip of light formed by the existing laser fill-in light units is relatively thin. During the use of the equipment, the field of view of the color line array camera is easy to deviate from the fill-in light area, resulting in flickering imaging effects. In addition, the overall volume of the laser fill-in light unit is large and the production cost is high. Utility Model Content

[0003] The purpose of the utility model is to provide a color linear array camera with LED fill light, which solves the above technical problems.

[0004] The technical solution adopted by the utility model is as follows: a color linear array camera with LED fill light, comprising a shell, a main body and a fill light unit, wherein the main body and the fill light unit are both built into the shell, the fill light unit is electrically connected to the main body and provides fill light for the main body, the fill light unit comprises an LED fill light component, the LED fill light component comprises LED light beads, aspheric convex lenses, convex lenses and cylindrical mirrors arranged in sequence according to the light emission order, the LED light beads are arranged in rows, the aspheric convex lenses are correspondingly arranged in front of each of the LED light beads, the convex lenses are arranged in front of all the aspheric convex lenses, the cylindrical mirror is arranged in front of the convex lens, the LED fill light component forms a fill light interval outside the shell, and the camera field of view formed by the main body is completely contained in the fill light interval.

[0005] Furthermore, the convex lens is a Fresnel lens.

[0006] Furthermore, glass baffles are provided on the shell corresponding to the light outlet of the LED fill light assembly and the light inlet of the main body.

[0007] Furthermore, the glass baffle is made of K9 glass.

[0008] Furthermore, the LED fill light assembly and the main body are arranged side by side.

[0009] Furthermore, the fill light interval formed by the LED fill light component is rectangular or circular.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The color line array camera of the utility model includes a shell, a main body and a fill light unit. When the main body needs to be filled with light, the LED light bead is directly controlled to be turned on. The light beam emitted by the LED light bead passes through an aspheric convex lens to form a white point light source. After passing through the convex lens, the point light source is converted into a point light beam. After the point light beam passes through a cylindrical mirror, the white point light beam is decomposed into a strip light beam to achieve long-distance brightness lighting. The LED fill light component of the present application uses a large-area cylindrical mirror to achieve the generation of a strip light beam. The generated strip light beam is wider, so that the fill light interval is larger, and the camera field of view formed by the main body is completely included in the fill light interval, so that the camera of the main body is not easy to deviate from the fill light area, and the imaging effect will not be flickering. In addition, the overall volume of the LED fill light component of the present application is small, and the production cost is also low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work, including:

[0013] Figure 1 The present invention is a schematic structural diagram of a color linear array camera with LED fill light according to an embodiment of the present invention.

[0014] Markings in the figure:

[0015] 10-housing; 11-glass baffle;

[0016] 20-body; 21-camera field of view;

[0017] 30-LED fill light assembly; 31-LED light bead; 32-aspherical convex lens; 33-Fresnel lens; 34-cylindrical mirror; 35-fill light interval;

[0018] 40-Object under test. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0021] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0022] As described in the background technology, the existing technical solutions usually use a laser fill light unit to fill light for the color line array camera to achieve the imaging function of the measured object. However, the strip of light formed by the existing laser fill light unit is relatively thin. During the use of the device, the field of view of the color line array camera is easy to deviate from the fill light area, resulting in flickering imaging effects. In addition, the overall volume of the laser fill light unit is large and the production cost is high.

[0023] Based on this, the inventors have created a color line array camera with LED fill light in the present application to solve the above technical problems.

[0024] The features and performance of the present invention are further described in detail below in conjunction with the embodiments.

[0025] Example

[0026] See also Figure 1A color linear array camera with LED fill light comprises a shell 10, a main body 20 and a fill light unit, wherein the main body 20 and the fill light unit are both built into the shell 10. Here, the shell 10 is used to load the main body 20 and the fill light unit. For example, a glass baffle 11 is provided on the shell 10 corresponding to the light outlet of the LED fill light component 30 and the light inlet of the main body 20. The glass baffle 11 can be a K9 glass component, which has a light transmittance of more than 98%, reducing the absorption of light. Here, the main body 20 refers to an existing color linear array camera, which mainly includes a data processing unit, a sensor unit and a lens assembly. The lens assembly includes a number of lens groups and apertures, the purpose of which is to focus the light reflected by the object 40 to be measured onto the sensor unit, so that the sensor unit can better capture the image, and the sensor unit converts the acquired image into a recognizable data signal, and the data processing unit processes the data signal and transmits it to an external device.

[0027] The fill light unit is electrically connected to the body 20 and provides fill light for the body 20. The fill light unit includes an LED fill light assembly 30. The LED fill light assembly 30 includes LED light beads 31, aspherical convex lenses 32, convex lenses and cylindrical mirrors 34 arranged in sequence according to the light emission order. The LED light beads 31 are arranged in a row. Here, the LED light beads 31 are devices that emit light beams using the photoelectric effect, usually white light. The aspherical convex lenses 32 are correspondingly arranged in front of each of the LED light beads 31, so that the light beams emitted by the LED are converted into point light sources. The convex lenses are arranged in front of all the aspherical convex lenses 32. For example, the convex lens can be a Fresnel lens 33. Due to the planar structure of the Fresnel lens 33, the Fresnel lens 33 is lighter and more compact than an ordinary lens. At the same time, compared with an ordinary lens, the Fresnel lens 33 has a higher light transmittance, thereby reducing the absorption and scattering of light.

[0028] The cylindrical mirror 34 is arranged in front of the convex lens, and the LED fill light assembly 30 forms a fill light interval 35 outside the housing 10, and the camera field of view 21 formed by the body 20 is completely included in the fill light interval 35. Preferably, the LED fill light assembly 30 can be arranged side by side with the body 20. Preferably, the fill light interval 35 formed by the LED fill light assembly 30 can be rectangular or circular, and can be set accordingly according to local needs, and the utility model is not limited thereto.

[0029] The color line array camera of the present invention includes a shell 10, a main body 20 and a fill light unit, which images the object 40 to be measured. When fill light is needed for the main body 20, the LED light bead 31 is directly controlled to be turned on. The light beam emitted by the LED light bead 31 passes through the aspheric convex lens 32 to form a white point light source, and then the point light source is converted into a point light beam after passing through the convex lens. After the point light beam passes through the cylindrical mirror 34, the white point light beam is decomposed into a strip light beam to achieve long-distance brightness lighting. The LED fill light component 30 of the present application uses a large-area cylindrical mirror 34 to generate a strip light beam. The generated strip light beam is wider, so that the fill light interval 35 is larger, so that the camera field of view 21 formed by the main body 20 is completely included in the fill light interval 35, so that the camera of the main body 20 is not easy to deviate from the fill light area, and the imaging effect will not be flickering. In addition, the overall volume of the LED fill light component 30 of the present application is small, and the production cost is also low.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A color line array camera with LED fill light, comprising a housing, a body and a fill light unit, wherein the body and the fill light unit are both built into the housing, the fill light unit is electrically connected to the body and provides fill light for the body, characterized in that: The fill light unit includes an LED fill light component, and the LED fill light component includes LED light beads, aspheric convex lenses, convex lenses and cylindrical mirrors arranged in sequence according to the order of light emission. The LED light beads are arranged in rows, and the aspheric convex lenses are correspondingly arranged in front of each of the LED light beads, the convex lenses are arranged in front of all the aspheric convex lenses, and the cylindrical mirror is arranged in front of the convex lenses. The LED fill light component forms a fill light interval outside the shell, and the camera field of view formed by the main body is completely contained in the fill light interval.

2. A color line array camera with LED fill light according to claim 1, characterized in that: The convex lens is a Fresnel lens.

3. The color line array camera with LED fill light according to claim 1, characterized in that: Glass baffles are arranged on the shell body corresponding to the light outlet of the LED fill light assembly and the light inlet of the main body.

4. The color line array camera with LED fill light according to claim 3, characterized in that: The glass baffle is made of K9 glass.

5. The color line array camera with LED fill light according to claim 1, characterized in that: The LED fill light assembly is arranged side by side with the main body.

6. The color line array camera with LED fill light according to claim 5, characterized in that: The fill light interval formed by the LED fill light component is rectangular or circular.

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