DE1692087U - LIGHTING INSERT, IN PARTICULAR FOR STILL IMAGE PROJECTORS. - Google Patents

Description

Lighting insert ^ '' especially "for JStanöfbiläjrxij ektorea-

The innovation concerns a lighting insert for still images projectors.

It is known to unite SSIT long "the optical elements of .Standbildprojektoren, so, for example ,, .Hohlspiegel condenser _$ Xeuchtfeldlinse and heat-absorbing filter, in a so-called" lighting use, ".". ■ "._ ■■■; ^

The combination of the optical elements in such a lighting insert offers many advantages »So a.B» den der Easier interchangeability, easier access when cleaning and easier assembly »^.

The explanations that have become known to solve this problem - be it by accommodating the optical elements in individual, üteckblechen insertable in guide slots, or by arrangement of the individual optical parts in a cage., which—-. inserted into the projector by means of a metal sheet attached to it - came closer to a technically satisfactory solution, but in the long run could not solve the problem itself solve, because what was achieved on the one hand in a relatively more precise, convenient, and manageable arrangement "and training, on the other hand lost again through the production of complicated and expensive individual parts. The considerable costs arising therefrom therefore naturally reduced the acceptance of the end product - that is, the still image projector ~ in the broadest circles of users,

In order to avoid these and similar disadvantages, therefore, according to the innovation proposed a lighting insert in which the optical elements in two facing, U-shaped

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The lighting insert consists of two deiaaandex facing =, "U-shaped ausjjebäl € -et ^ 3i_B! Leciie3i ^ -irndJa ^^ wi Tiormigen sheets-lies -fl-ef · iK1ils] p33e" gel "Äf ^C 4th aspherical condenser 3, the noise protection filter ex 4 as well as the illuminated field lens 5 »The two TJ-shaped sheets are used, breakouts or the like. Ib ₁ Tc ₃ id / i-ej 1f "1g and lh isum passage of the optical elements already mentioned. To limit and fix the optical elements in their longitudinal axis, noses, lobes or the like are attached to the TJ-shaped 31echen. 13c, II3 Im, I ^ io _a Ip ₁ Iq .. attached - During assembly, these "are positively bent - to the '" · ^: - ■' -optical elements- Likewise, the noses,, tabs or the like. Tt - and 1u. The two TJ-shaped sheets have two further recesses, breakouts or the like. Ir ₁ 1s for the passage of the projector lamp 6, which is known per se and does not belong to the subject of the innovation. The two bolts are secured by means of nuts 7, δ and the two are U-shaped. Sheets connected to each other. The stud bolts 9 are firmly attached in the lower sheet la »" For centering the lighting, lighting insert on your projector chassis 11, three stud bolts, pins or the like 12, 13, Ik arranged in a triangle are provided. mounted in the projector chassis holes, recesses or the like. Ha ₁ 11B, engage 11c. the studs, pins or the like. 12, 13, 1 * f are formed offset in diameter. This is not only a distance of from Beieuchtungseinsatzes Pr ejector chassis achieved., but also at the same time a good heat dissipation from the projection lamp or an air circulation-in the projector itself, causes. The also in its diameter offset formed threaded bolt I5, which passes through the hole 11d made in the projector chassis, serves in common with the Nut 16 for detachable fastening of the lighting insert on the projector chassis, both the stud bolts, pins or the like 12, 13, 14 and the threaded bolt zen 15 are firmly attached with their upper ends in the lower, U-shaped plate 1a.

Claims (1)

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that - * - * —Ϊ́ί. - gate":
"ΪΓ- αϊ * opt. _ _ ^ - ~ through iur 3:
is marriage: -in. two - one-to-one 3ugekeiir ± eix TT-f-oraDJg selected sheets ~ takes place, ) Lighting insert according to claim %, characterized in that /;> the TJ- "shaped_.Bleche Xi," jia) for receiving egg ^ optical elements -12, 3i ^ "53 'Jni-t ^^ corresponding ^^ recesses; -Äuslirüche. "" Toi-dgl »(Ii), 1c, 1d, Ie ^; .1f, 1g, lh) are provided, - .--.; - -;.-.-.- Lighting insert according to claim "1 and 2 _T characterized, xtass on the ΙΓ-shaped sheets. (1, la) for delimiting and fixing the optical elements (Z ₁ 3-r ** ■■» 5) in sight of their longitudinal axis Käsen, Flaps or the like (ix, 1k, 11; Im ₁ In ₁ 1o, 1p, 1 (^ as well as 1t, 1u) - are provided, which are bent in a form-fitting manner on the optical elements » Lighting insert according to claim 1 to 3 = »characterized in that on the lower" U-shaped plate (la) for centering the 'lighting insert "on the projector chassis (~ 1i) three stud bolts, which are offset in diameter and are arranged in a triangular shape, Pens or the like (12, 13, i4) are provided, which engage in corresponding bores, recesses ο »the like» (1Ia ₁ 11b, "11c) made in the project or chassis (11). 5 ») lighting insert according to claim 1 to A-, characterized in that that on the lower Ή-shaped plate (la) for fastening the Lighting insert on the projector chassis (11) one in his Diameter offset trained threaded bolt (15) is provided, which is mounted in a corresponding in the projector chassis (11) Hole, recess or the like. " (lld) intervenes and by means of a mother. (16) is secured, 6,) Lighting insert as described and shown. 1 "sheet of drawings.