CN2154492Y

CN2154492Y - Optical film frame and filter assembly in it

Info

Publication number: CN2154492Y
Application number: CN 92220963
Authority: CN
Inventors: 陈陟岗
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-23
Filing date: 1992-09-23
Publication date: 1994-01-26
Anticipated expiration: 2002-09-23

Abstract

The utility model discloses an optical slice frame and an interference filter slice arranged in the optical slice frame. The shape of the existing filter slice is a circle, the existing filter slice has large half width, can not be placed into a sample rack, can not be provided with a frame and can be marked inconveniently. The utility model comprises a frame 1 comprising an outer frame 3, an inner frame 2, a hinge 4, light transmitting holes 1 in the inner and outer frames, the shape of the outer frame 3 is a cubic body, and the width of the narrow side of one light transmitting side is not greater than 16 mm. The utility model also comprises an optical slice 2 comprising optical glass 5, a film 6 plated on the optical glass, and a color glass slice 7 glued on the optical glass 5. The frame can be used as the frame of other optical glass slices. The optical slice is suitable for the error detection of the total range wavelength scale of a visible range spectrophotometer.

Description

Optical film frame and filter assembly in it

The utility model relates to a kind of optical sheet framework and can be installed in the interior a kind of interference filter of framework.

Existing optical filter is with QB ₄, JB ₇, HB ₁₀Deng optical glass material, after cutting, grinding, polishing, make optical glass, then according to the scope of required centre wavelength, half width and peak transmission such as compare at the type of the selected film of important technological parameters, and the optical thickness n ' h of strict each rete of control is λ. ^（m）／4。Make the product of φ 25mm or φ 30mm then, this product half width big (about 15mm), and product is circular, can not put in the spectrophotometric specimen holder, tape frame not, inconvenient marked product numbering has been brought many inconvenience to the user.

It is rectangle that the purpose of this utility model is to provide a kind of profile, and optical sheet framework and a kind of half width that can just put in the spectrophotometer specimen holder are less, are contained in the degree of precision interference filter in the above-mentioned optical sheet framework.

Content of the present utility model comprises:

Optical glass material 5, be plated in the film 6 on the optical glass material 5, housing 3 with light hole 1, with housing 3 inside casing with same light hole 12 movingly, screw or rivet 4 that housing 3 and inside casing 2 is affixed, the profile of housing 3 is a cuboid, the narrow hem width degree of transparent side is not more than 16mm, also glue together on the optical glass material 5 of the intact film 6 of described plating one deck look slide is arranged, the optical glass material 5 that is solidified togather, the monnolithic case of film 6 and look slide 7 is a cuboid, is contained in inside casing 2 and fastens in the space of back formation with housing 3.

The shape of light hole can be close with optical glass material promptly approximate rectangular opening, promptly intersect by two groups of parallel lines, should locate rounding or abate in crossing part by knuckle or the 3rd limit, the shape of light hole also can be rectangular opening.

Housing 3 and inside casing 2 are spill in the section configuration at the inoperative section place that does not have light hole.

Above-mentioned by optical glass material 5, the filter sheet structure that film 6 and look slide 7 are formed is the interference filter chip architecture.

Advantage of the present utility model is:

1, optical sheet framework and optical filter can be put in the spectrophotometric specimen holder very easily together, and carry out Measuring and testing by the mating plate of insert on it.

2, the half width of this mating plate is littler 2～4 times than the half width of existing product, thereby has sharp-pointed transmission peaks, and the accuracy of detection height has effectively been eliminated secondary peak after especially gluing together look slide 7.

3, the centre wavelength of this mating plate is evenly distributed between 360nm～800nm, is applicable to the gamut wavelength staff error that detects visible spectrophotometer.

4, can have the sign or the numbering of mating plate on this framework, meet the requirement of metrological legislation and measurement standardization.

5, the material of the optical glass of this framework insert can be neutral grey slide, holimium oxide slide, praseodymium neodymium slide, quartzy plating diaphragm, ultraviolet to neutral slide of visible region etc.

6, the centre wavelength scope of this mating plate detection is 360～800nm, and half width is 4～8nm, and peak transmission does not have secondary peak than＞40% at visible region, does not have fork, and no flat-top phenomenon is improving a lot qualitatively than existing product.

Fig. 2 is the utility model front view;

Fig. 1 is Fig. 2 A-A cut-open view;

Fig. 3 is optical filter sectional drawing (film 6 and look slide thickness not to scale (NTS), exaggerative drawing);

Fig. 4 is Fig. 3 left view.

Embodiment 1:

Be contained in the optical filter (particularly interference filter) in the optical sheet framework, the composition of optical filter comprises, with optical glass material through cutting, the optical glass material 5 of the rectangular body that grinds, be processed into after the polishing, be plated in the film 6 on the optical glass material 5, the band that glues together on the optical glass behind the plated film leads to shape or ends shape and color slide 7, the optical glass material 5 that is solidified togather, film 6 and look slide 7 are the optical filter of rectangular body, and its sharp edge acute angle is easy to usely can break into fillet round edge or abate.Optical filter is contained in (Fig. 1) in the optical sheet framework, framework is divided into housing 3 with light hole 1 and is movingly the inside casing with same light hole 12 with housing 3, and screw or rivet 4 that inside casing 2 and housing 3 is affixed, the profile of housing 3 is a cuboid, the narrow hem width degree of transparent side is not more than 16mm.Section at housing 3 that does not have light hole and inside casing 2 is the inoperative section part, section be shaped as spill, optical filter just is contained in by housing 3 and inside casing 2 and fastens in the space that the back forms.Light hole can be rectangular opening also can will be located the approximate rectangular hole of rounding or abate for by two groups of parallel lines quadratures by knuckle or the 3rd limit in crossing part.

Claims

1, a kind of optical sheet framework and the optical filter that is mounted in it, its composition comprises: optical glass material, be plated in the film on the optical glass material, it is characterized in that: its composition also comprises: the housing with light hole, with housing inside casing movingly with same light hole, with housing and affixed screw or the rivet of inside casing, the profile of described housing is a cuboid, the narrow hem width degree of transparent side is not more than 16mm, also glue together on the optical glass material of the intact film of described plating one deck look slide is arranged, the described optical glass material that is solidified togather, the monnolithic case of film and look slide is a cuboid, is contained in inside casing and housing and fastens in the space of back formation.

2, optical sheet framework according to claim 1 and be contained in optical filter in the framework, it is characterized in that: described light hole 1 is rectangular opening, the described optical glass material of use, the filter sheet structure of film and look slide formation is the interference filter chip architecture.