DE1727812U - DIAPOSITIVE-PLASTIC INTERCHANGEABLE FRAME. - Google Patents

Description

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In the present lürfindv.np · it is about them ;: nn eir> Diapositiv— Plrstic-Tochselrähnchen> nus T'nr.ststof f, denotes for JQoinbild]? Iaj) nsi ⁺ ivG from the [55 wn - PiIm, which in particular? * ': r the üpt.rao'itunj and f'ippkonical projection of color positives are used,

Decannually, various "slides - r ^ hmoheri a.vr ir * insistoff, i'e'tall and ar; dore ::"'er'nstoffen are made because they. ¹ , er-riesoi: has, daJP through vorftef orti; -tc ria-> ocitiv - TJfhnchen the Ui Id ::; or for re-erh jhlich Simplified ^ clt ivird, Di "from various"'erlrntoffen hericeetoll- th slide-Rnhuicher consist of one or rzeJireren parts ttnd jev .'- cili? 2 Declzglezem that the flatness of the "ILROM! to bring about this and also to protect it from Moclianic influences. This task is carried out by the two blinded cover glass: fulfilled,

A considerable part has been found in all di? V; onitive-liähuichon existing up to now that the thin glass to be used alone for the diapositive-Declrjrläs ^ r in the thicknesses of about 1 nm at the very least has minimum tolerances of h / 10 mm in thicknesses from 0 _f 8 to 1.2 rara available

is. Due to the regular up to a maximum of 0 _? · 4 nm in thickness fluctuating coverslips results in one accordingly \ ^r arious removal of Filrabxld.es to Objektivpiittelpunlct of Projektionsiyerät.es, w_g.s to Folje het that in each case the focus plane changes, and therefore xrird according jedeEi V / cchsel the slides in Projector the sharpness of the picture has to be readjusted. Recently, the manufacturers of slide projection devices have been building more and more semi- and fully automatic projectors or additional devices for projectors that enable semi- or full-table projection. From this arises the urgency of the need for a Ώί apositiv-Rähinchen, with de :: i a running one, after each one; Sharpness adjustment is no longer required, as otherwise the importance of a semiautomatic or fully automatic ^{machine is reduced by the necessary manual sharpness adjustment for every: ^ image star 1:.}

Macl; the invention is made using; the existing cover glasses of un maKimal 0.4 ram in thickness fluctuating from semi-white saline glass created an advantageous construction for slides in that the film image was so

^{wire 1 is} stored in a plastic part so that it honed: it is adjusted and independent of the constantly fluctuating glass thickness Flatten the plaotic part (Fig. 6, Num.1,2,9) stored and by iToc? Cen in the correct. Lay held (Fig “1, No. 4). A recess is provided in each of the two Pl: \ stic toilets for the dock glasses, which allows the maximum Ff fective ¹ ! ckc fkr coverslips. (Fig. ^, Zif.i?). The film image is embedded between two plastic toilets injected from biopolymer plastic no frnt, since "the well-known" a dechelnertig inernarxinr grasps. 5 "- the plastic? C-To71? Don required calls! Rr> c! lrl-'cn. Λπ: ° ^ iesG! i-aire * ·. · 'ιτ1 ri.it einf ncl'.nten means a gonane location dcr> Ti lrf ~ i ⁿ ^ es in riProrritiv— TlHhnchoTi Gi-reiclit and the FocuT-axis (Fig.6, Zif.8) τ. ^ ' ¹ c "ar.it ciis"il' ¹ -schfirfe remains in its length ^l!: Orstant, 3in Laufer.ios Mrerstellen r! Image ^ echsel vrlvä ßarait spared.

! Dtirch c ie theoretiscli at ΖΛ / ei Vecl '"; l äsern in' 0, S r:" ¹ rchivr.zilrerde 0-1 as- strength dei "two Dec: glasses occurs uT ^T at which Viinri»!.! Thickness of 1.6 rm (for both glasses) a loose fit of the film image ir Urs el: ei nun ^, which results in a slight curvature of the film image. Ba ^ ie effective fluctuations only 0.3 to 0.? inn These deviations are so irrational, because they do not have any practical need for projection with the relatively high depth of field of the projection equipment. On the other hand, the film image in the slide is so loose "Relasrert, that.? It remains adaptable to fluctuations in temperature and air humidity. This avoids the formation of the feared condensation its galatine bromide silver layer between the two lid cores is shown The film reaches so deep into the plastic parts on both sides (Fig. 6, Zif. 1,2) that it is held firmly to the surface of the visual surface.

Since experience has shown that by forming the intimate Beriihrunp- the Acetatcelluloseschieht (Blanks ei te of the film) η it the cover glass Newtonian Sinj-e (Spektralerscheinungen) that disturbing contact ⁷⁷ Irscheinunff in the projection, fiction, is (? Eniäß the lower side one of the two cover glasses (Fig. 6, item 3) roughened so that there is no intimate contact between the blank side of the film and the cover glass. (Fig. 6, item 5 "')

The lower cover slip remains unchanged. (Fig.6, item 4). The coated On the side of the film image, your lower cover glass is facing. (AhT:, 6, Zif. 7). In Fig. 6, item 10, the lens of a Ρχ-ο jection device is sohenatic Tind shows according to the invention in Zif. 8 constant Distance from the lens to the film image (in the sharpness ebno).

In Fig. ... I ₁ Zif, - 1 the main part of the diapositive seed, which is injection-molded from ho clip o ^ rmärin plastic, is shown. Dor 35 no. wide ti ir? (Fig. 1 No. 4) is cloned apart to about 37 mn sections, in which the image 24 36 mm is included. The film image is held at its: upper and lower sand (35 mn - width) by '. · ■ holders (Fig. 1, "if.P.). The cover glass underneath the film image (Fig. 1, item 6) lies in the recess provided in the upper part of the Hs. The cover glass to be placed on the film is held in place by four eek holders (Fig.!, item 3) so that the film or the glasses cannot be displaced when the cover part is pressed in The image section under the film image n -.- f Fig. 1, item 5 covers the film image in format 24 χ j6 on all 4 sides cleanly »

In Fig. 2, No. 1 is also injection-molded from high-poly plastic Plastic — part (lid) of the slide — chicken shown. It contains on its insides, recesses for the upper cover glass pane and for the socket holders of the upper cover glass pane in the main part of the chimney «, (Fig. 2, item 2). The image section of the cover part (Fig.2, Item 3) corresponds the image section of the main part (Fig. 1, item 5) c * es Dia2? ositiv-Hämchens «, '

• In Fig. 3 the front of the main part of the slide panorama is shown. (Fig. 3, item 1). There is a delimitation groove around the image (Fig. 3jZif, 2), which shows an exchange of the image section in the Sprits— casting mold - e.g. in "the format '24 χ 2.4 ran or 2 cutouts l6 χ 23 mm possible. In the lower part of the brace, two are only deepened by S / 10 circular surfaces attached, "the" roughened in timers with a sorry t! The surface are stranded so that "by coloring (with ink, pencil or similar) of one or the other part (Fig. 3, Point 3.4) each, the portrait or landscape format of the film image can be identified; and so an optical image signal is created that the hand- '■ making it easier to use the slide mounts in the projector,

Fig. 4 shows the front side of the slide frame cover (in number l) and a large inscription area for the picture title (Fig. 4, No. 2),

Claims (3)

PÄ.386847 * -9.7.5S The Be s or do! Rs area is roughened so that it can be easily clic labeled with pencil, copier, ink, etc. The image detail (Fig. 4, No. 3) corresponds to the other image sections of the other representations * In Fig. 5, “the slide frame is shown in longitudinal section, the main slide part (Fig. -5, No. 1) and cover ( 2Jif. 2) interlock tightly. The cover glasses (Fig. 5, Zxf. 4,5) are held in place by both parts. The film image (Fig. 5, item 6) hits the boundary brackets on both sides (Fig. 5> item 3,) P ajfc »^ Bn tffxi sayings: 1. Slide - Plastic - IVechEelrährachen, characterized by dai> the film image, in a plastic injection-molded from highly polj ^ närem plastic. Frames is stored on its perforation surfaces in such a way that it is constant adjusted and therefore independent of the fluctuating thickness of the cover slips is kept on a plane of focus, which is achieved by the fact that the cover glasses are smaller than the film image, so that the oil protrudes from the glasses Know surfaces of the film to be held in plastic part. 2. Slide - Plastic - Viechs el rähmchen according to claim 1, characterized in that that on the front of one part of the saw (main part) two kreia, föriaige, wells are attached as optical signal markers to serve". 3. Slide - plastic - interchangeable frames according to claim 1, characterized in, that a surface of one of the two cover glasses is roughened in such a way that the blank side of the film image does not come into contact with the cover glass more "comes into intimate contact,