Abstract:
The invention relates to an arrangement for increasing local spectral resolution in spectrometers for spectral analysis of emissions and absorptions, whereby receiver arrays are used for reception purposes. According to the invention, a receiver array, an image forming dispersive grid and a first slotted diaphragm (10) are assembled and rigidly connected to each inside the housing of the spectrometer. The first slotted diaphragm (10) is provided with n slits (11a...n). A second mobile slotted diaphragm (12) is provided with a single slit (12a) and is assigned to the first slotted diaphragm (10) whereby the slits (11a...n) of the first diaphragm (10) can be adjusted successively, one by one, and placed into a state enabling radiation to pass through. An adjustment and signal processing device is also provided so that the respective shifting states of the second diaphragm (12) can be regulated and the accompanying spectra can be picked up from the receiver array.
Abstract:
For exact positioning of optical elements, a spectrometer is provided with a holder which is constructed using plates having a sector of circle shape and a side wall portion comprising a cylindrical surface portion. The cylindrical surface portion is provided with an exactly circular abutment face in which an entrance slot and an exit slot are provided. Relative to this abutment face, an entrance slit and an exit slit can be extremely exactly positioned with respect to one another along an exact circle. The holder is preferably constructed using two axially stacked compartments, in a cylindrical surface portion of which the slot or slots is/are provided between the compartments.
Abstract:
A microscopic spectrometer is described in which the light from a light source (1) (3) is incident upon a sample (2) and the light, which has been reflected by or transmitted through said sample (2) is subjected to a spectrometric measurement after having passed an object lens. A beam splitter (12) is disposed behind said object lens (3) to form two branched optical paths (a, b), whereas a diaphragm (10, 11) in only one (a) of said optical paths (a, b) at an image plane (4a) thereof is provided. Rejoining means (16-19) for rejoining the light passing along said two branched optical paths (a, b) and positioned behind the respective image planes (4a, 4b) of said paths (a, b) are used in order to observe an image obtained by synthesizing images at their respective image planes (4a, 4b).
Abstract:
Un spectromètre (10) d'étalonnage automatique d'un scanner (30) d'image en couleur du type scanner linéaire ou scanner de zone, comprend un élément (20), doté d'une fente optique (18), mobile jusque dans une position située sur un axe optique (14) du scanner entre sa source (12) de lumière polychromatique et sa lentille à focalisation (16), dans un plan occupé par une image en couleur lorsque celle-ci est analysée. Un réseau de diffraction (24) est mobile de manière similaire jusque sur l'axe optique, à une distance donnée d'un détecteur d'image (22) du scanner. La source de lumière illumine la fente et le réseau de diffraction diffuse la lumière polychromatique transmise en fonction de sa longueur d'onde, formant des spectres de duplication décalés de l'axe sur des fractions respectives du détecteur d'image, les longueurs d'onde plus longues étant déviées selon des angles supérieurs respectivement.
Abstract in simplified Chinese:本发明之分光器1A系包含:封装2,其具有底座4及盖体5;光学单元10A,其配置于底座4上;及引线接脚3,其贯通底座4。光学单元10A包含:分光部21,其系对自盖体5之光入射部6入射之光进行分光且反射;光检测组件30,其系检测出由分光部21分光且反射之光;支持体40,其系以在与分光部21之间形成空间之方式支持光检测组件30;突出部11,其系自支持体40突出;及配线,其系与光检测组件30电性连接。突出部11系配置于接触底座4之位置。引线接脚3系电性连接于配置于突出部11之配线之第2端子部。
Abstract in simplified Chinese:在本发明之分光模块1中,系借由图案化而让光吸收层6一体成型,前述光吸收层6系包含有使朝向分光部3行进之光L1通过之光通过孔6a,及使朝向光检测组件4之光检测部4a行进之光L2通过之光通过孔6b。因此,可防止光通过孔6a与光通过孔6b之相对的关系位置发生偏移。再者,可借由光吸收层6而抑制杂散光之产生,并吸收杂散光,故可抑制杂散光入射于光检测组件4之光检测部4a。从而,依据分光模块1,可提高可靠性。