RU167811U1 - Portable digital microvisor - Google Patents

Abstract

The utility model relates to optical instruments and is intended for microscopic studies in reflected light. In the case of the microvisor, the constituent elements are fixed along the optical axis sequentially in the following order: a replaceable contrast filter, visible, infrared and ultraviolet illuminators, a polarizer filter, an objective lens, an analyzer filter, a photoelectronic image receiver, a power and control circuit, while illuminators (visible (infrared and ultraviolet range) and a replaceable contrast filter are made in the form of a ring, allowing the rays to reflect from the object of study and passes freely l to the analyzer filter, without blocking the optical axis of the device, and the analyzer filter is installed with the possibility of rotation around the optical axis by 360 °. The technical result is to improve the quality of the resulting image. 1 s.p. f-ly, 1 ill.

Description

The utility model relates to optical devices and is designed to quickly obtain a high-quality up to 200-fold adjustable image of the surface of an object for conducting microscopic studies in reflected light (visible, ultraviolet, polarized and infrared spectra), measurements and quantitative estimates of the studied objects.

The claimed utility model relates to the priority areas of development of science, technology and technology in the Russian Federation “Information and telecommunication systems” and “Security and counter-terrorism” [Decree of the President of the Russian Federation No. 899 of July 7, 2011]

Currently, there is a significant demand for portable microvisors that allow you to quickly conduct microscopic studies of objects and materials, followed by quick program processing and fixing of photo and video materials.

In particular, these devices are in demand for various experts in their implementation of activities such as:

- assessment of the state of steel structures and products at industrial enterprises during non-destructive testing;

- assessment of material evidence and materials during investigative activities and forensic examinations;

- assessment of the share of minerals in mineral raw materials;

- evaluation of materials and samples in metallographic studies;

- veterinary control (including as a trichinoscopy with the use of additional equipment);

- verification of the authenticity of signatures in banks and various organizations;

- verification of the authenticity of signatures during the conduct of election campaigns;

- verification of the signature at the request of the courts;

- determination of the personality psychotype based on the analysis of the signature form (reliefs);

- etc.

Common disadvantages of portable microvisors used today are that they do not give experts the opportunity to simultaneously examine objects in visible, ultraviolet, infrared, and polarized light, and they also have poor image quality due to possible stray reflections and glare from the object of study.

The examination process can be significantly improved by providing experts with better and more functional microvisors, which allow obtaining a better-quality adjustable image of the object’s surface, increased up to 200 times, with the possibility of studying it in the visible, ultraviolet, polarized and infrared spectra.

Known portable microscope (RU 2108607 C1, IPC ⁶ G02B 21/00, G02B 21/26, A61B 10/00, published 04/10/1998) containing an optical system located inside the housing and coaxially with it, as well as an object plate made of a transparent material, characterized the fact that it additionally contains an element made in the form of a glass with a hole in the bottom, on which the subject plate is rigidly fixed, while the subject plate completely covers the hole in the bottom, and the side wall of the glass is axially movable with the body.

Signs of an analogue that coincide with the essential features of a utility model are the lens and the optical system.

However, this microscope requires placing the test object on a special subject plate, which is an integral part of the microscope. This significantly reduces the functionality in terms of the sizes and dimensions of the objects under study, in addition, this microviewer does not have the functions of examining objects in the visible, ultraviolet, polarized and infrared spectra, and also does not make it possible to obtain an image in a digital code with subsequent transmission to various digital devices . The insufficient quality of the received analog image also follows from this.

The closest in technical essence to the proposed device is a portable digital microscope (RU 69269 U1, IPC G02B 21/00 (2006.01), published December 10, 2007), consisting of a tripod and a removable optoelectronic module, in which the lens is arranged sequentially along the optical axis and a photoelectronic image receiver, as well as an electronic power and control circuit, an upper illuminator module and a first group of electrical contacts, the tripod of which consists of a base and a rack with an optoelectronic module holder and includes focusing mechanism, the lower illuminator module and a second group of electrical contacts. The lens is movable along the optical axis, the holder of the optoelectronic module is kinematically connected to the focusing mechanism, and the lower illuminator module is located at the base of the tripod. The upper illuminator module is located on the lens body.

Signs of the prototype, which coincide with the essential features of the claimed utility model, are a body, a visible range illuminator, a lens, a focusing mechanism, a photoelectronic image receiver, a power and control circuit.

This design solution provides a reduction in overall dimensions and weight of the device. Improving the performance of a portable digital microscope. This device is taken by us as a prototype.

The disadvantage of this device is that it has insufficient image quality for experts if there are spurious reflections and glare in the study of objects. In addition, it allows the study of objects only in the visible range and does not allow experts to additionally conduct studies in the ultraviolet, polarized and infrared spectra, if necessary, and also has poor image quality due to possible spurious reflections and glare from the object of study.

The inventive utility model is aimed at creating a portable digital microvisitor, which allows to improve the quality of the resulting image through the use of an analyzer filter having advanced functionality through the use of additional illuminators (ultraviolet, polarized and infrared spectra).

The technical result consists in improving the quality of the image and enhancing the functionality of the microviewer through the use of special filters and illuminators, as well as a unique layout scheme for their location.

The technical result is achieved by the fact that a portable digital microviewer including a housing, a visible range illuminator, a lens-lens, a focusing mechanism, a photoelectronic image receiver, a power and control circuit, according to a utility model, is additionally equipped with infrared (IR) and ultraviolet (UV) illuminators , replaceable contrast filter, polarizer filter and filter analyzer, analog-to-digital converter. In the case of the microvizor, the constituent elements are fixed along the optical axis sequentially in the following order: a replaceable contrast filter, illuminators (visible, IR and UV range), a polarizer filter, an objective lens, an analyzer filter, an photoelectronic image receiver, a power and control circuit, analog-to-digital the converter, while the illuminators and the replaceable contrast filter are made in the form of a ring that does not overlap the optical axis of the device, and the filter analyzer can be rotated around the optical axis by 360 °.

The introduction into the device of illuminators of the infrared (IR) and ultraviolet (UV) range, as well as a filter-polarizer, allows experts to conduct research on objects in various spectra and to obtain more advanced information about their condition and (or) composition.

The introduction of a replaceable contrasting filter into the device is necessary to improve image quality when examined in ultraviolet light, it is installed in the optical and illumination path and transmits a narrow spectrum of excited radiation, cutting off UV radiation.

The introduction of a filter analyzer allows filtering spurious reflections and glare from the object of study.

Differences from the prototype prove the novelty of the claimed utility model.

The utility model is illustrated in the drawing. FIG.

List of figures

In FIG. a block diagram of a portable digital microvisor is presented.

The following digital items are assigned to device elements:

1 - housing;

2 - a group of illuminators (visible, infrared and ultraviolet range);

3 - replaceable contrast filter;

4 - filter polarizer;

5 - lens-objective;

6 - filter analyzer;

7 - photoelectronic image receiver;

8 is a power and control circuit;

A portable digital microvisor (Fig.) Contains a housing 1, a group of illuminators (visible, IR and UV range) 2, a replaceable contrast filter 3, a polarizing filter 4, a lens-lens 5, a filter analyzer 6, a photoelectronic image receiver 7, a power circuit and management 8.

In the microvisor's case, the constituent elements are fixed along the optical axis sequentially in the following order: a replaceable contrast filter, illuminators (visible, IR and UV range), a polarizer filter, an objective lens, an analyzer filter, a photoelectronic image receiver, a power and control circuit.

The illuminators and a replaceable contrast filter are made in the form of a ring that does not overlap the optical axis of the device, and the filter analyzer can be rotated 360 ° around the optical axis.

The device operates as follows.

The light from the group of illuminators (visible, UV and IR) 2 passes through a replaceable contrast filter 3 and illuminates the object of study. The light reflected from the object of study passes through the filter polarizer 4 into the objective lens 5, in which it is concentrated and through the filter analyzer 6 it focuses on the photoelectronic image receiver 7, in which it is converted into an electronic signal for further transmission to various electronic devices (in the drawing not shown).

The filter analyzer 6 is constantly present in the optical path, is a circular polarized plate with a variable angle and is designed to filter spurious reflections and glare from the object of study, and is also used as an analyzer for research in polarized light in conjunction with a replaceable polarizer filter 4, installed in the lighting path. Replaceable contrast filters 3 are installed in the lighting path and are used in the visible range of lighting. The replaceable filter analyzer 6 is used in the study in the ultraviolet range, is installed in the optical and lighting path and passes a narrow spectrum of excited radiation, cutting off UV radiation.

Thus, the image quality of the object of study is improved and the functionality of a portable digital microvisor is expanded.

Claims (2)

1. A portable digital microvisor comprising a housing, a visible range illuminator, a lens, a focusing mechanism, a photoelectronic image pickup, a power and control circuit, characterized in that it is further equipped with infrared and ultraviolet illuminators, a replaceable contrast filter, a polarizing filter and filter-analyzer, and in the case of the microvizor, the constituent elements are fixed along the optical axis sequentially in the following order: interchangeable contrast filter, ate visible, infrared and ultraviolet, filter polarizer, lens-lens, filter analyzer, photoelectronic image pickup, power and control circuit, while illuminators (visible, infrared and ultraviolet) and a replaceable contrast filter are made in the form of a ring, allowing the rays are reflected from the object of study and freely pass to the filter analyzer without blocking the optical axis of the device, and the filter analyzer is mounted with the possibility of rotation around the optical axis by 360 °. 2. The portable digital microvisor according to claim 1, characterized in that the group of illuminators of the visible, infrared and ultraviolet range is made in the form of a multifunction illuminator.

Images