JPH043418U

JPH043418U -

Info

Publication number: JPH043418U
Application number: JP4294290U
Authority: JP
Priority date: 1990-04-21
Filing date: 1990-04-21
Publication date: 1992-01-13

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す縦断面図、第
２図は従来例の構成図である。１０…保持部材、１１…導光管、１２…中空円
錐台状反射板、１３…軸心、１４…集光レンズ、
１５…凹レンズ、１６…レンズホルダ、１７…ロ
ツド、１８…位置決め装置、１９…分光器、２０
，２９…本体、２１…中空直円錐状ミラー、２２
…環状集光レンズ、２３…開口、２４，３２…孔
、２５…被照射面、２６，３３…集点、２７…間
隔調節器、２８…反射器、３０…直円錐状ミラー
、３１…環状集光レンズ、３４，３５…平行光束
、３６，３７…反射光束、５０…ユニカルレンズ
、５１…集光レンズ。 FIG. 1 is a vertical sectional view showing an embodiment of the present invention, and FIG. 2 is a configuration diagram of a conventional example. DESCRIPTION OF SYMBOLS 10... Holding member, 11... Light guide tube, 12... Hollow truncated conical reflection plate, 13... Axis center, 14... Condenser lens,
15... Concave lens, 16... Lens holder, 17... Rod, 18... Positioning device, 19... Spectrometer, 20
, 29...Main body, 21...Hollow right conical mirror, 22
... Annular condensing lens, 23 ... Aperture, 24, 32 ... Hole, 25 ... Irradiated surface, 26, 33 ... Focus point, 27 ... Interval adjuster, 28 ... Reflector, 30 ... Right conical mirror, 31 ... Annular Condensing lens, 34, 35... Parallel light flux, 36, 37... Reflected light flux, 50... Unical lens, 51... Condensing lens.

Claims

[Claims for Utility Model Registration] (1) Light guide members 11, 14, 15 that have a cylindrical light guide tube 11 and condense light incident on the light guide tube 11 on the exit side of the light guide tube 11. The light guide tube 11 is arranged so as to surround at least the exit side of the light guide tube 11.
A hollow truncated conical reflector 12 that forms a light transmission path is connected to the exit side of the light guide tube 11 to direct a part of the incident light from the light guide tube 11 to the axis 13 of the light guide tube 11. a spectroscope 19 that causes the remaining incident light to travel straight along the light guide tube 11, disperses and collects the remaining incident light in an annular manner in a direction substantially perpendicular to the axis 13 of the light guide tube 11, and reflects the collected light toward the reflecting plate 12; , disposed on the larger diameter side of the opening of the reflection plate 12 than the spectrometer 19, so that the spectrometer 1
A reflector 28 that disperses and collects the straight light transmitted through the light guide tube 9 in a ring shape in a direction substantially perpendicular to the axis 13 of the light guide tube 11 and reflects the collected light toward the reflecting plate 12 side. An annular light condensing device featuring: (2) The light guide members 11, 14, and 15 include a light guide tube 11, a condenser lens 14 that condenses the light incident on the light guide tube 11, and converts the light transmitted through the condenser lens 14 into parallel light. 2. The annular condensing device according to claim 1, further comprising a concave lens 15 for returning the condensing lens to the original position, and positioning devices 16, 17, and 18 for relatively adjusting the positions of the condensing lens 14 and the concave lens 15. (3) The light guiding members 11, 14, 15 are the reflecting plates 1
3. The annular light condensing device according to claim 1, wherein the annular light condensing device is disposed so as to be movable relative to the axis 13 along the direction of the axis 13. (4) The annular condensing device according to claim 1, 2 or 3, wherein the spectroscope 19 and the reflector 28 are connected via an interval adjuster 27 that adjusts the interval between them.