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KL25-025-150 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

KL25-30x20-050 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

KL25-30x20-025 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

Diameter:30.0x20.0mm; focallength:25mm

US$98.27

In stock

SKU

KL502

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Overview

Material:UV Grade Fused Silica

Design Wavelength:587.6nm; n=1.45848

Dimension Tolerance:+/-0.2mm

Center Thickness Tolerance:��0.2mm

focallength Tolerance:��2%

Centering Tolerance:3~5 arc minutes

Surface Quality:2~3 level

Bevel:0.2mmX45��

Coatings:Please see the coating list

Specification

More Information
Drawing
Diameter Dia(mm)	30.0x20.0
Effective focal length EFL(mm)	25
Back Focus length BFL(mm)	19.58
Radius R1(mm)	11.45
Center Thickness CT(mm)	7.87
Edge Thickness ET(mm)	2

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"Certainly, I can," Frank answered, and then began: "North, north by east, north-northeast, northeast by north, northeast, northeast by east, east-northeast, east by north, east��" "So frightfully interesting," the Curate managed to interpose, "but I really cannot spare the time." He had reverted now to the alcoholic diagnosis. She could certainly mention the matter to----. Hetty stopped suddenly and caught her breath. A faint light had commenced to glow in the Corner House, gradually the blank window shaped to a luminous outline. The light grew stronger and stronger, till Hetty could see the balustrade of the staircase. And then, surely enough there came a face to the window. It was not a bad day's work, and it spurred on Prout to fresh endeavours. He carefully examined the fireplace, he tested the windows, but nothing rewarded his endeavours beyond a blacklead-brush thrown into the corner of the scullery together with a cake of blacklead recently opened. Lawrence nodded approvingly. Bruce had struck the right note. Corresponding to the universal space which contains all particular spaces, there was, in the Neo-Platonic system, a universal Thought which contained all particular thoughts,��the Nous about which we heard so much in studying Plotinus.405 Such a conception is utterly strange to the modern mind, but it was familiar enough to Spinoza; and we can see how it would be suggested by the common forms of reasoning. The tendency of syllogism is either to subsume lower under higher notions until a summum genus is reached, or to resolve all subjects into a single predicate, or to connect all predicates with a single subject. The analogies of space, too, would tell in the same direction, bringing nearer the idea of a vast thought-sea in which all particular thoughts, or what to a Cartesian meant the same thing, all particular minds, were contained. And Neo-Platonism showed how this universal Mind or Thought could, like the space which it so much resembled, be interpreted as the product of a still higher principle. To complete the parallelism, it remained to show that Thought, which before had seemed essentially finite, is, on the contrary, co-infinite with Extension. How this was done will appear a little further on. Parliament, having so smoothly transacted its business, was prorogued on the 14th of June, and Walpole then addressed himself to the settlement of the Spanish difference. But here he found a spirit of resistance which had undoubtedly grown from the invectives of the Opposition. The outcries against the Spanish captains, the right of search, and the payment of compensation for the ships taken by Byng, had given great offence to the proud Spaniards. They were encouraged, also, by the earnest manner in which Walpole had argued for peace. They now assumed a high tone. They complained of the continuance of the British fleet in the Mediterranean. They demanded the payment of the sixty-eight thousand pounds which they said was due from the South Sea Company,[72] though it had been stipulated in the Convention that it should not come into consideration. The Deacon had just remembered that he had not seen that individual for some little time, and looked around for him with some concern. It was well that he did. Shorty had come across the haversack that the Deacon had brought, and it awakened all his old predatory instincts, sharpened, if anything, by his feebleness. Without saying a word to any body, he had employed the time while the Surgeon and Deacon were in conversation in preparing one of his customary gorges after a long, hard march. "Wonder if I'm ever goin' to have a chanst for a little private sociable with Billings? Just as I think I'm goin' to have it, something interferes. That feller's bin so long ripe for a lickin' that I'm afraid he'll be completely spiled before my chanst comes." "With the Alberts," she said. "I know." I'm still Chairman of the Board around here, and I intend to use power if I have to. The best advice I can get tells me your plans are unadvisable. Alice saw her blunder. She saw that she had insulted his ambition; and yet, though she now understood the ferocities of that ambition, it filled her with a definite hostility which made her want to fight and fight and fight it with all the strength she had. At the same time, as his surprise collapsed, his own antagonism rose up. He felt a sudden hatred, not for the girl, but for the forces which somehow he knew she was bringing to oppose him. They faced each other, their eyes bright with challenge, their breasts heaving with a stormier, earthlier emotion��and the white flame of antagonism which divided them seemed at the same time to fuse them, melt them into each other. "Father John," said he, "it was not for the sake of boasting I spoke: what Wat Turner does, he does because he thinks it is right. I ought to have said Wat Tyler," he added, recollecting himself and looking round; "but the truth will out, and there's no use in making a secret. Some of ye do know the truth already, and some do not: but, however, I'll now tell ye, that because in a quarrel I happened to kill one of Lord de Boteler's retainers, I came here to Maidstone and took the name of poor old Wat Tyler, my mother's brother��peace to his soul! and made the folks believe that I was a sort of a runaway son." "Please you, my lord," said Wells, nothing daunted, "did not John Oakley get Stephen Holgrave from the forest of Dean?" HoME �й�һ��ػ��ŷ�� ENTER NUMBET 0018bojv.com.cn
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�й�һ��ػ��ŷ��

KL25-025-150 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

KL25-30x20-050 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

KL25-30x20-025 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

Frequently Asked Questions and Answers

File(s)

DHL Worldwide Express

Best Value for
Your Money

10 Major
Currencies Accepted

�й�һ���ػ�����ŷ��

KL25-025-150 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

KL25-30x20-050 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

KL25-30x20-025 UV Grade Fused Silica Plano-Convex Cylindrical Lenses

Frequently Asked Questions and Answers

File(s)

DHL Worldwide Express

Best Value for Your Money

10 Major Currencies Accepted

�й�һ��ػ��ŷ��

Best Value for
Your Money

10 Major
Currencies Accepted