SU963071A1

SU963071A1 - Star spectrum simulator

Info

Publication number: SU963071A1
Application number: SU813258326A
Authority: SU
Inventors: Евгений Сергеевич Куприянов; Михаил Герасимович Пестряков; Виталий Павлович Кудинов
Original assignee: Предприятие П/Я А-3771
Priority date: 1981-03-10
Filing date: 1981-03-10
Publication date: 1982-09-30

Description

(5) ИМИТАТОР СПЕКТРА ЗВЕЗДЫ(5) STAR SPECTRUM IMITATOR

1one

Изобретение относитс к астропомическим имитаторам и может быть использовано дл имитации спектра звезд в лабораторных услови х.The invention relates to astrophysical simulators and can be used to simulate the spectrum of stars in laboratory conditions.

Известен имитатор спектра звезды, содержащий последовательно установленные источник света, конденсатор, собирающую линзу, диффузионный рассеиватель , диафрагму и объектив .A star spectrum simulator is known that contains a successively installed light source, a condenser, a collecting lens, a diffusion lens, a diaphragm, and an objective.

Недостатком известного устройст- Q ва вл етс то, что в качестве источников света используютс cвeтoдиoдЫj у которых мала величина светового потока и нет светодиодов, излучающих сине-фиолетовую часть спектра, что js ограничивает возможность имитации.A disadvantage of the known device is that light sources are used where light is small and there are no LEDs emitting a blue-violet part of the spectrum, which limits the possibility of imitation js.

Цель изобретени - повышение точности йотации..The purpose of the invention is to improve the accuracy of iota ..

Указанна цепь достигаетс тем, что имитатор, содержащий установленные 2 следовательно источник света, конденсатор , собирающуюлинзу, диффузионный рассеиватель, диафрагму и объектив, включает две трехгранные призмы сThis circuit is achieved by the fact that the simulator containing the installed 2, therefore, a light source, a condenser, a collecting lens, a diffusion diffuser, a diaphragm and a lens, includes two triangular prisms with

противоположно направленными дисперси ми , размещенные между конденсором и линзой, расположенные последовательно между конденсором и линзой, расположенные последовательно между призмами первый хроматический объектив, спектральную маску и второй ахроматический объектив, при этом задний фокус первого .объектива и передний второго расположены в плоскости спектральной маски в одной точке, причем маска выполнена в виде выт нутой вдоль |направлени дисперсии щели переменного профил с непрозрачными полосами,перпендикул рными направлению дисперсии.oppositely directed dispersions placed between the condenser and the lens, located sequentially between the condenser and the lens, located sequentially between the prisms of the first chromatic lens, the spectral mask and the second achromatic lens, while the back focus of the first lens and the front of the second are located in the plane of the spectral mask in one the mask is made in the form of an alternating profile slot with an opaque stripes extending along the direction of dispersion with opaque strips perpendicular to dispersion.

На чертеже изображена принципиальна схема имитатора..The drawing shows a schematic diagram of the simulator ..

Claims

The simulator contains a light source 1, a condenser 2, a collecting lens 3, a transparent diffuse scatterer A, a diaphragm 5 simulating the angular dimensions of the star, installed in the focal plane of the beam 6. In a parallel beam after condenser 2, three-sided spectral prisms 7 and 8 are installed, the objectives are achromatic 9 and TO, in the plane of combining the foci of which the spectral mask 11 is located, is made in the form of a variable profile slot extended along the direction of the dispersion. On the spectral mask 11, opaque portions 12 can be made to simulate absorption lines in the spectra of stars. The simulator works as follows. The light collimated by condenser 2 from source 1 is fed to a spectral prism 7. The latter transforms a parallel beam of spectrally undecomposed radiation incident on it into a set of parallel beams of monochromatic radiation, deflected at different angles depending on the wavelength. The achromatized lens 9 collects monochromatic rays in the focal plane, which is the dispersion plane in this case. In the plane of dispersion, we obtain the mo chromatic images of the body of the source 1 filament. Next, the monochromatic images of the filament body pass through the spectral mask 11. The slot of the mask 11 has a variable profile, which varies along the direction of the dispersion, and the intensity of the individual spectral components varies. monochromatic images, and the intensity change is performed in accordance with the spectral distribution of the simulated star, according to which the gceophil of the spectral mask 11 is made. ive 10 converts the light transmitted through the mask 11 into a parallel beam. Then the light enters the second spectral prism 8, which again converts the light into a set of parallel beams of monochromatic radiation, but deflected in the direction opposite to the dispersion direction of the prism 7. So about 1.4 times, the same dispersions of the same prisms 7 and 8 add up to the zero dispersion in the sum, and therefore, after the passage of light through the collecting lens 3, parallel beams of monochromatic radiation are collected at a single point on the diffuse diverter A, and then,. intermingled, uniformly illuminates the diaphragm 5 of the collimator 6. Thus, at the output of the simulator, we have a collimated radiation beam, the spectral distribution of which is the response of cfByeT to a given star spectrum. The simulator allows you to simulate the spectra of stars of different classes, while changing the class of a star is carried out by changing the spectral masks, which are very easy to manufacture. DETAILED DESCRIPTION OF THE INVENTION A star spectrum simulator containing a successively installed light source, a condenser, a collecting lens, a diffuse diffuser, a diaphragm, and an object, which has been used in order to improve the quality of the simulation, it contains two triangular prism with oppositely directed dispersions, placed between the condenser and the lens, arranged in series between the prisms of the first achromatic lens, the spectral mask and the second achromatic lens, while the back focus of the first lens a and the front of the second are located in the plane of the spectral mask at one point, and the mask is made in the form of an alternating profile with an opaque stripes elongated along the direction of dispersion and perpendicular to the direction of dispersion. Sources of information taken into account during the examination 1. USSR Author's Certificate No., cl. G 09 B 27/06, 1978. f