TWI303326B - - Google Patents

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Publication number
TWI303326B
TWI303326B TW95133656A TW95133656A TWI303326B TW I303326 B TWI303326 B TW I303326B TW 95133656 A TW95133656 A TW 95133656A TW 95133656 A TW95133656 A TW 95133656A TW I303326 B TWI303326 B TW I303326B
Authority
TW
Taiwan
Prior art keywords
neutral filter
substrate
layer
transmittance
neutral
Prior art date
Application number
TW95133656A
Other languages
English (en)
Chinese (zh)
Other versions
TW200813492A (en
Inventor
qing-chun Li
qi-hua Xu
Original Assignee
Asia Optical Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asia Optical Co Inc filed Critical Asia Optical Co Inc
Priority to TW95133656A priority Critical patent/TW200813492A/zh
Publication of TW200813492A publication Critical patent/TW200813492A/zh
Application granted granted Critical
Publication of TWI303326B publication Critical patent/TWI303326B/zh

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  • Optical Elements Other Than Lenses (AREA)
TW95133656A 2006-09-12 2006-09-12 Neutral density filter TW200813492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW95133656A TW200813492A (en) 2006-09-12 2006-09-12 Neutral density filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW95133656A TW200813492A (en) 2006-09-12 2006-09-12 Neutral density filter

Publications (2)

Publication Number Publication Date
TW200813492A TW200813492A (en) 2008-03-16
TWI303326B true TWI303326B (https=) 2008-11-21

Family

ID=44768331

Family Applications (1)

Application Number Title Priority Date Filing Date
TW95133656A TW200813492A (en) 2006-09-12 2006-09-12 Neutral density filter

Country Status (1)

Country Link
TW (1) TW200813492A (https=)

Also Published As

Publication number Publication date
TW200813492A (en) 2008-03-16

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees